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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * An <code>ExportException</code> is a <code>RemoteException</code> | ||
| 30 | * thrown if an attempt to export a remote object fails. A remote object is | ||
| 31 | * exported via the constructors and <code>exportObject</code> methods of | ||
| 32 | * <code>java.rmi.server.UnicastRemoteObject</code> and | ||
| 33 | * <code>java.rmi.activation.Activatable</code>. | ||
| 34 | * | ||
| 35 | * @author Ann Wollrath | ||
| 36 | * @since JDK1.1 | ||
| 37 | * @see java.rmi.server.UnicastRemoteObject | ||
| 38 | * @see java.rmi.activation.Activatable | ||
| 39 | */ | ||
| 40 | public class ExportException extends java.rmi.RemoteException { | ||
| 41 | |||
| 42 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 43 | private static final long serialVersionUID = -9155485338494060170L; | ||
| 44 | |||
| 45 | /** | ||
| 46 | * Constructs an <code>ExportException</code> with the specified | ||
| 47 | * detail message. | ||
| 48 | * | ||
| 49 | * @param s the detail message | ||
| 50 | * @since JDK1.1 | ||
| 51 | */ | ||
| 52 | public ExportException(String s) { | ||
| 53 | super(s); | ||
| 54 | } | ||
| 55 | |||
| 56 | /** | ||
| 57 | * Constructs an <code>ExportException</code> with the specified | ||
| 58 | * detail message and nested exception. | ||
| 59 | * | ||
| 60 | * @param s the detail message | ||
| 61 | * @param ex the nested exception | ||
| 62 | * @since JDK1.1 | ||
| 63 | */ | ||
| 64 | public ExportException(String s, Exception ex) { | ||
| 65 | super(s, ex); | ||
| 66 | } | ||
| 67 | |||
| 68 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.net.MalformedURLException; | ||
| 29 | import java.net.URL; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * <code>LoaderHandler</code> is an interface used internally by the RMI | ||
| 33 | * runtime in previous implementation versions. It should never be accessed | ||
| 34 | * by application code. | ||
| 35 | * | ||
| 36 | * @author Ann Wollrath | ||
| 37 | * @since JDK1.1 | ||
| 38 | * | ||
| 39 | * @deprecated no replacement | ||
| 40 | */ | ||
| 41 | @Deprecated | ||
| 42 | public interface LoaderHandler { | ||
| 43 | |||
| 44 | /** package of system <code>LoaderHandler</code> implementation. */ | ||
| 45 | final static String packagePrefix = "sun.rmi.server"; | ||
| 46 | |||
| 47 | /** | ||
| 48 | * Loads a class from the location specified by the | ||
| 49 | * <code>java.rmi.server.codebase</code> property. | ||
| 50 | * | ||
| 51 | * @param name the name of the class to load | ||
| 52 | * @return the <code>Class</code> object representing the loaded class | ||
| 53 | * @exception MalformedURLException | ||
| 54 | * if the system property <b>java.rmi.server.codebase</b> | ||
| 55 | * contains an invalid URL | ||
| 56 | * @exception ClassNotFoundException | ||
| 57 | * if a definition for the class could not | ||
| 58 | * be found at the codebase location. | ||
| 59 | * @since JDK1.1 | ||
| 60 | * @deprecated no replacement | ||
| 61 | */ | ||
| 62 | @Deprecated | ||
| 63 | Class<?> loadClass(String name) | ||
| 64 | throws MalformedURLException, ClassNotFoundException; | ||
| 65 | |||
| 66 | /** | ||
| 67 | * Loads a class from a URL. | ||
| 68 | * | ||
| 69 | * @param codebase the URL from which to load the class | ||
| 70 | * @param name the name of the class to load | ||
| 71 | * @return the <code>Class</code> object representing the loaded class | ||
| 72 | * @exception MalformedURLException | ||
| 73 | * if the <code>codebase</code> paramater | ||
| 74 | * contains an invalid URL | ||
| 75 | * @exception ClassNotFoundException | ||
| 76 | * if a definition for the class could not | ||
| 77 | * be found at the specified URL | ||
| 78 | * @since JDK1.1 | ||
| 79 | * @deprecated no replacement | ||
| 80 | */ | ||
| 81 | @Deprecated | ||
| 82 | Class<?> loadClass(URL codebase, String name) | ||
| 83 | throws MalformedURLException, ClassNotFoundException; | ||
| 84 | |||
| 85 | /** | ||
| 86 | * Returns the security context of the given class loader. | ||
| 87 | * | ||
| 88 | * @param loader a class loader from which to get the security context | ||
| 89 | * @return the security context | ||
| 90 | * @since JDK1.1 | ||
| 91 | * @deprecated no replacement | ||
| 92 | */ | ||
| 93 | @Deprecated | ||
| 94 | Object getSecurityContext(ClassLoader loader); | ||
| 95 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.io.*; | ||
| 28 | import java.util.*; | ||
| 29 | |||
| 30 | /** | ||
| 31 | * <code>LogStream</code> provides a mechanism for logging errors that are | ||
| 32 | * of possible interest to those monitoring a system. | ||
| 33 | * | ||
| 34 | * @author Ann Wollrath (lots of code stolen from Ken Arnold) | ||
| 35 | * @since JDK1.1 | ||
| 36 | * @deprecated no replacement | ||
| 37 | */ | ||
| 38 | @Deprecated | ||
| 39 | public class LogStream extends PrintStream { | ||
| 40 | |||
| 41 | /** table mapping known log names to log stream objects */ | ||
| 42 | private static Hashtable known = new Hashtable(5); | ||
| 43 | /** default output stream for new logs */ | ||
| 44 | private static PrintStream defaultStream = System.err; | ||
| 45 | |||
| 46 | /** log name for this log */ | ||
| 47 | private String name; | ||
| 48 | |||
| 49 | /** stream where output of this log is sent to */ | ||
| 50 | private OutputStream logOut; | ||
| 51 | |||
| 52 | /** string writer for writing message prefixes to log stream */ | ||
| 53 | private OutputStreamWriter logWriter; | ||
| 54 | |||
| 55 | /** string buffer used for constructing log message prefixes */ | ||
| 56 | private StringBuffer buffer = new StringBuffer(); | ||
| 57 | |||
| 58 | /** stream used for buffering lines */ | ||
| 59 | private ByteArrayOutputStream bufOut; | ||
| 60 | |||
| 61 | /** | ||
| 62 | * Create a new LogStream object. Since this only constructor is | ||
| 63 | * private, users must have a LogStream created through the "log" | ||
| 64 | * method. | ||
| 65 | * @param name string identifying messages from this log | ||
| 66 | * @out output stream that log messages will be sent to | ||
| 67 | * @since JDK1.1 | ||
| 68 | * @deprecated no replacement | ||
| 69 | */ | ||
| 70 | @Deprecated | ||
| 71 | private LogStream(String name, OutputStream out) | ||
| 72 | { | ||
| 73 | super(new ByteArrayOutputStream()); | ||
| 74 | bufOut = (ByteArrayOutputStream) super.out; | ||
| 75 | |||
| 76 | this.name = name; | ||
| 77 | setOutputStream(out); | ||
| 78 | } | ||
| 79 | |||
| 80 | /** | ||
| 81 | * Return the LogStream identified by the given name. If | ||
| 82 | * a log corresponding to "name" does not exist, a log using | ||
| 83 | * the default stream is created. | ||
| 84 | * @param name name identifying the desired LogStream | ||
| 85 | * @return log associated with given name | ||
| 86 | * @since JDK1.1 | ||
| 87 | * @deprecated no replacement | ||
| 88 | */ | ||
| 89 | @Deprecated | ||
| 90 | public static LogStream log(String name) { | ||
| 91 | LogStream stream; | ||
| 92 | synchronized (known) { | ||
| 93 | stream = (LogStream)known.get(name); | ||
| 94 | if (stream == null) { | ||
| 95 | stream = new LogStream(name, defaultStream); | ||
| 96 | } | ||
| 97 | known.put(name, stream); | ||
| 98 | } | ||
| 99 | return stream; | ||
| 100 | } | ||
| 101 | |||
| 102 | /** | ||
| 103 | * Return the current default stream for new logs. | ||
| 104 | * @return default log stream | ||
| 105 | * @see #setDefaultStream | ||
| 106 | * @since JDK1.1 | ||
| 107 | * @deprecated no replacement | ||
| 108 | */ | ||
| 109 | @Deprecated | ||
| 110 | public static synchronized PrintStream getDefaultStream() { | ||
| 111 | return defaultStream; | ||
| 112 | } | ||
| 113 | |||
| 114 | /** | ||
| 115 | * Set the default stream for new logs. | ||
| 116 | * @param newDefault new default log stream | ||
| 117 | * @see #getDefaultStream | ||
| 118 | * @since JDK1.1 | ||
| 119 | * @deprecated no replacement | ||
| 120 | */ | ||
| 121 | @Deprecated | ||
| 122 | public static synchronized void setDefaultStream(PrintStream newDefault) { | ||
| 123 | defaultStream = newDefault; | ||
| 124 | } | ||
| 125 | |||
| 126 | /** | ||
| 127 | * Return the current stream to which output from this log is sent. | ||
| 128 | * @return output stream for this log | ||
| 129 | * @see #setOutputStream | ||
| 130 | * @since JDK1.1 | ||
| 131 | * @deprecated no replacement | ||
| 132 | */ | ||
| 133 | @Deprecated | ||
| 134 | public synchronized OutputStream getOutputStream() | ||
| 135 | { | ||
| 136 | return logOut; | ||
| 137 | } | ||
| 138 | |||
| 139 | /** | ||
| 140 | * Set the stream to which output from this log is sent. | ||
| 141 | * @param out new output stream for this log | ||
| 142 | * @see #getOutputStream | ||
| 143 | * @since JDK1.1 | ||
| 144 | * @deprecated no replacement | ||
| 145 | */ | ||
| 146 | @Deprecated | ||
| 147 | public synchronized void setOutputStream(OutputStream out) | ||
| 148 | { | ||
| 149 | logOut = out; | ||
| 150 | // Maintain an OutputStreamWriter with default CharToByteConvertor | ||
| 151 | // (just like new PrintStream) for writing log message prefixes. | ||
| 152 | logWriter = new OutputStreamWriter(logOut); | ||
| 153 | } | ||
| 154 | |||
| 155 | /** | ||
| 156 | * Write a byte of data to the stream. If it is not a newline, then | ||
| 157 | * the byte is appended to the internal buffer. If it is a newline, | ||
| 158 | * then the currently buffered line is sent to the log's output | ||
| 159 | * stream, prefixed with the appropriate logging information. | ||
| 160 | * @since JDK1.1 | ||
| 161 | * @deprecated no replacement | ||
| 162 | */ | ||
| 163 | @Deprecated | ||
| 164 | public void write(int b) | ||
| 165 | { | ||
| 166 | if (b == '\n') { | ||
| 167 | // synchronize on "this" first to avoid potential deadlock | ||
| 168 | synchronized (this) { | ||
| 169 | synchronized (logOut) { | ||
| 170 | // construct prefix for log messages: | ||
| 171 | buffer.setLength(0);; | ||
| 172 | buffer.append( // date/time stamp... | ||
| 173 | (new Date()).toString()); | ||
| 174 | buffer.append(':'); | ||
| 175 | buffer.append(name); // ...log name... | ||
| 176 | buffer.append(':'); | ||
| 177 | buffer.append(Thread.currentThread().getName()); | ||
| 178 | buffer.append(':'); // ...and thread name | ||
| 179 | |||
| 180 | try { | ||
| 181 | // write prefix through to underlying byte stream | ||
| 182 | logWriter.write(buffer.toString()); | ||
| 183 | logWriter.flush(); | ||
| 184 | |||
| 185 | // finally, write the already converted bytes of | ||
| 186 | // the log message | ||
| 187 | bufOut.writeTo(logOut); | ||
| 188 | logOut.write(b); | ||
| 189 | logOut.flush(); | ||
| 190 | } catch (IOException e) { | ||
| 191 | setError(); | ||
| 192 | } finally { | ||
| 193 | bufOut.reset(); | ||
| 194 | } | ||
| 195 | } | ||
| 196 | } | ||
| 197 | } | ||
| 198 | else | ||
| 199 | super.write(b); | ||
| 200 | } | ||
| 201 | |||
| 202 | /** | ||
| 203 | * Write a subarray of bytes. Pass each through write byte method. | ||
| 204 | * @since JDK1.1 | ||
| 205 | * @deprecated no replacement | ||
| 206 | */ | ||
| 207 | @Deprecated | ||
| 208 | public void write(byte b[], int off, int len) | ||
| 209 | { | ||
| 210 | if (len < 0) | ||
| 211 | throw new ArrayIndexOutOfBoundsException(len); | ||
| 212 | for (int i = 0; i < len; ++ i) | ||
| 213 | write(b[off + i]); | ||
| 214 | } | ||
| 215 | |||
| 216 | /** | ||
| 217 | * Return log name as string representation. | ||
| 218 | * @return log name | ||
| 219 | * @since JDK1.1 | ||
| 220 | * @deprecated no replacement | ||
| 221 | */ | ||
| 222 | @Deprecated | ||
| 223 | public String toString() | ||
| 224 | { | ||
| 225 | return name; | ||
| 226 | } | ||
| 227 | |||
| 228 | /** log level constant (no logging). */ | ||
| 229 | public static final int SILENT = 0; | ||
| 230 | /** log level constant (brief logging). */ | ||
| 231 | public static final int BRIEF = 10; | ||
| 232 | /** log level constant (verbose logging). */ | ||
| 233 | public static final int VERBOSE = 20; | ||
| 234 | |||
| 235 | /** | ||
| 236 | * Convert a string name of a logging level to its internal | ||
| 237 | * integer representation. | ||
| 238 | * @param s name of logging level (e.g., 'SILENT', 'BRIEF', 'VERBOSE') | ||
| 239 | * @return corresponding integer log level | ||
| 240 | * @since JDK1.1 | ||
| 241 | * @deprecated no replacement | ||
| 242 | */ | ||
| 243 | @Deprecated | ||
| 244 | public static int parseLevel(String s) | ||
| 245 | { | ||
| 246 | if ((s == null) || (s.length() < 1)) | ||
| 247 | return -1; | ||
| 248 | |||
| 249 | try { | ||
| 250 | return Integer.parseInt(s); | ||
| 251 | } catch (NumberFormatException e) { | ||
| 252 | } | ||
| 253 | if (s.length() < 1) | ||
| 254 | return -1; | ||
| 255 | |||
| 256 | if ("SILENT".startsWith(s.toUpperCase())) | ||
| 257 | return SILENT; | ||
| 258 | else if ("BRIEF".startsWith(s.toUpperCase())) | ||
| 259 | return BRIEF; | ||
| 260 | else if ("VERBOSE".startsWith(s.toUpperCase())) | ||
| 261 | return VERBOSE; | ||
| 262 | |||
| 263 | return -1; | ||
| 264 | } | ||
| 265 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.io.DataInput; | ||
| 28 | import java.io.DataOutput; | ||
| 29 | import java.io.IOException; | ||
| 30 | import java.io.ObjectInput; | ||
| 31 | import java.io.ObjectOutput; | ||
| 32 | import java.io.Serializable; | ||
| 33 | import java.security.AccessController; | ||
| 34 | import java.security.SecureRandom; | ||
| 35 | import java.util.concurrent.atomic.AtomicLong; | ||
| 36 | import sun.security.action.GetPropertyAction; | ||
| 37 | |||
| 38 | /** | ||
| 39 | * An <code>ObjID</code> is used to identify a remote object exported | ||
| 40 | * to an RMI runtime. When a remote object is exported, it is assigned | ||
| 41 | * an object identifier either implicitly or explicitly, depending on | ||
| 42 | * the API used to export. | ||
| 43 | * | ||
| 44 | * <p>The {@link #ObjID()} constructor can be used to generate a unique | ||
| 45 | * object identifier. Such an <code>ObjID</code> is unique over time | ||
| 46 | * with respect to the host it is generated on. | ||
| 47 | * | ||
| 48 | * The {@link #ObjID(int)} constructor can be used to create a | ||
| 49 | * "well-known" object identifier. The scope of a well-known | ||
| 50 | * <code>ObjID</code> depends on the RMI runtime it is exported to. | ||
| 51 | * | ||
| 52 | * <p>An <code>ObjID</code> instance contains an object number (of type | ||
| 53 | * <code>long</code>) and an address space identifier (of type | ||
| 54 | * {@link UID}). In a unique <code>ObjID</code>, the address space | ||
| 55 | * identifier is unique with respect to a given host over time. In a | ||
| 56 | * well-known <code>ObjID</code>, the address space identifier is | ||
| 57 | * equivalent to one returned by invoking the {@link UID#UID(short)} | ||
| 58 | * constructor with the value zero. | ||
| 59 | * | ||
| 60 | * <p>If the system property <code>java.rmi.server.randomIDs</code> | ||
| 61 | * is defined to equal the string <code>"true"</code> (case insensitive), | ||
| 62 | * then the {@link #ObjID()} constructor will use a cryptographically | ||
| 63 | * strong random number generator to choose the object number of the | ||
| 64 | * returned <code>ObjID</code>. | ||
| 65 | * | ||
| 66 | * @author Ann Wollrath | ||
| 67 | * @author Peter Jones | ||
| 68 | * @since JDK1.1 | ||
| 69 | */ | ||
| 70 | public final class ObjID implements Serializable { | ||
| 71 | |||
| 72 | /** Object number for well-known <code>ObjID</code> of the registry. */ | ||
| 73 | public static final int REGISTRY_ID = 0; | ||
| 74 | |||
| 75 | /** Object number for well-known <code>ObjID</code> of the activator. */ | ||
| 76 | public static final int ACTIVATOR_ID = 1; | ||
| 77 | |||
| 78 | /** | ||
| 79 | * Object number for well-known <code>ObjID</code> of | ||
| 80 | * the distributed garbage collector. | ||
| 81 | */ | ||
| 82 | public static final int DGC_ID = 2; | ||
| 83 | |||
| 84 | /** indicate compatibility with JDK 1.1.x version of class */ | ||
| 85 | private static final long serialVersionUID = -6386392263968365220L; | ||
| 86 | |||
| 87 | private static final AtomicLong nextObjNum = new AtomicLong(0); | ||
| 88 | private static final UID mySpace = new UID(); | ||
| 89 | private static final SecureRandom secureRandom = new SecureRandom(); | ||
| 90 | |||
| 91 | /** | ||
| 92 | * @serial object number | ||
| 93 | * @see #hashCode | ||
| 94 | */ | ||
| 95 | private final long objNum; | ||
| 96 | |||
| 97 | /** | ||
| 98 | * @serial address space identifier (unique to host over time) | ||
| 99 | */ | ||
| 100 | private final UID space; | ||
| 101 | |||
| 102 | /** | ||
| 103 | * Generates a unique object identifier. | ||
| 104 | * | ||
| 105 | * <p>If the system property <code>java.rmi.server.randomIDs</code> | ||
| 106 | * is defined to equal the string <code>"true"</code> (case insensitive), | ||
| 107 | * then this constructor will use a cryptographically | ||
| 108 | * strong random number generator to choose the object number of the | ||
| 109 | * returned <code>ObjID</code>. | ||
| 110 | */ | ||
| 111 | public ObjID() { | ||
| 112 | /* | ||
| 113 | * If generating random object numbers, create a new UID to | ||
| 114 | * ensure uniqueness; otherwise, use a shared UID because | ||
| 115 | * sequential object numbers already ensure uniqueness. | ||
| 116 | */ | ||
| 117 | if (useRandomIDs()) { | ||
| 118 | space = new UID(); | ||
| 119 | objNum = secureRandom.nextLong(); | ||
| 120 | } else { | ||
| 121 | space = mySpace; | ||
| 122 | objNum = nextObjNum.getAndIncrement(); | ||
| 123 | } | ||
| 124 | } | ||
| 125 | |||
| 126 | /** | ||
| 127 | * Creates a "well-known" object identifier. | ||
| 128 | * | ||
| 129 | * <p>An <code>ObjID</code> created via this constructor will not | ||
| 130 | * clash with any <code>ObjID</code>s generated via the no-arg | ||
| 131 | * constructor. | ||
| 132 | * | ||
| 133 | * @param objNum object number for well-known object identifier | ||
| 134 | */ | ||
| 135 | public ObjID(int objNum) { | ||
| 136 | space = new UID((short) 0); | ||
| 137 | this.objNum = objNum; | ||
| 138 | } | ||
| 139 | |||
| 140 | /** | ||
| 141 | * Constructs an object identifier given data read from a stream. | ||
| 142 | */ | ||
| 143 | private ObjID(long objNum, UID space) { | ||
| 144 | this.objNum = objNum; | ||
| 145 | this.space = space; | ||
| 146 | } | ||
| 147 | |||
| 148 | /** | ||
| 149 | * Marshals a binary representation of this <code>ObjID</code> to | ||
| 150 | * an <code>ObjectOutput</code> instance. | ||
| 151 | * | ||
| 152 | * <p>Specifically, this method first invokes the given stream's | ||
| 153 | * {@link ObjectOutput#writeLong(long)} method with this object | ||
| 154 | * identifier's object number, and then it writes its address | ||
| 155 | * space identifier by invoking its {@link UID#write(DataOutput)} | ||
| 156 | * method with the stream. | ||
| 157 | * | ||
| 158 | * @param out the <code>ObjectOutput</code> instance to write | ||
| 159 | * this <code>ObjID</code> to | ||
| 160 | * | ||
| 161 | * @throws IOException if an I/O error occurs while performing | ||
| 162 | * this operation | ||
| 163 | */ | ||
| 164 | public void write(ObjectOutput out) throws IOException { | ||
| 165 | out.writeLong(objNum); | ||
| 166 | space.write(out); | ||
| 167 | } | ||
| 168 | |||
| 169 | /** | ||
| 170 | * Constructs and returns a new <code>ObjID</code> instance by | ||
| 171 | * unmarshalling a binary representation from an | ||
| 172 | * <code>ObjectInput</code> instance. | ||
| 173 | * | ||
| 174 | * <p>Specifically, this method first invokes the given stream's | ||
| 175 | * {@link ObjectInput#readLong()} method to read an object number, | ||
| 176 | * then it invokes {@link UID#read(DataInput)} with the | ||
| 177 | * stream to read an address space identifier, and then it | ||
| 178 | * creates and returns a new <code>ObjID</code> instance that | ||
| 179 | * contains the object number and address space identifier that | ||
| 180 | * were read from the stream. | ||
| 181 | * | ||
| 182 | * @param in the <code>ObjectInput</code> instance to read | ||
| 183 | * <code>ObjID</code> from | ||
| 184 | * | ||
| 185 | * @return unmarshalled <code>ObjID</code> instance | ||
| 186 | * | ||
| 187 | * @throws IOException if an I/O error occurs while performing | ||
| 188 | * this operation | ||
| 189 | */ | ||
| 190 | public static ObjID read(ObjectInput in) throws IOException { | ||
| 191 | long num = in.readLong(); | ||
| 192 | UID space = UID.read(in); | ||
| 193 | return new ObjID(num, space); | ||
| 194 | } | ||
| 195 | |||
| 196 | /** | ||
| 197 | * Returns the hash code value for this object identifier, the | ||
| 198 | * object number. | ||
| 199 | * | ||
| 200 | * @return the hash code value for this object identifier | ||
| 201 | */ | ||
| 202 | public int hashCode() { | ||
| 203 | return (int) objNum; | ||
| 204 | } | ||
| 205 | |||
| 206 | /** | ||
| 207 | * Compares the specified object with this <code>ObjID</code> for | ||
| 208 | * equality. | ||
| 209 | * | ||
| 210 | * This method returns <code>true</code> if and only if the | ||
| 211 | * specified object is an <code>ObjID</code> instance with the same | ||
| 212 | * object number and address space identifier as this one. | ||
| 213 | * | ||
| 214 | * @param obj the object to compare this <code>ObjID</code> to | ||
| 215 | * | ||
| 216 | * @return <code>true</code> if the given object is equivalent to | ||
| 217 | * this one, and <code>false</code> otherwise | ||
| 218 | */ | ||
| 219 | public boolean equals(Object obj) { | ||
| 220 | if (obj instanceof ObjID) { | ||
| 221 | ObjID id = (ObjID) obj; | ||
| 222 | return objNum == id.objNum && space.equals(id.space); | ||
| 223 | } else { | ||
| 224 | return false; | ||
| 225 | } | ||
| 226 | } | ||
| 227 | |||
| 228 | /** | ||
| 229 | * Returns a string representation of this object identifier. | ||
| 230 | * | ||
| 231 | * @return a string representation of this object identifier | ||
| 232 | */ | ||
| 233 | /* | ||
| 234 | * The address space identifier is only included in the string | ||
| 235 | * representation if it does not denote the local address space | ||
| 236 | * (or if the randomIDs property was set). | ||
| 237 | */ | ||
| 238 | public String toString() { | ||
| 239 | return "[" + (space.equals(mySpace) ? "" : space + ", ") + | ||
| 240 | objNum + "]"; | ||
| 241 | } | ||
| 242 | |||
| 243 | private static boolean useRandomIDs() { | ||
| 244 | String value = AccessController.doPrivileged( | ||
| 245 | new GetPropertyAction("java.rmi.server.randomIDs")); | ||
| 246 | return value == null ? true : Boolean.parseBoolean(value); | ||
| 247 | } | ||
| 248 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * An <code>Operation</code> contains a description of a Java method. | ||
| 30 | * <code>Operation</code> objects were used in JDK1.1 version stubs and | ||
| 31 | * skeletons. The <code>Operation</code> class is not needed for 1.2 style | ||
| 32 | * stubs (stubs generated with <code>rmic -v1.2</code>); hence, this class | ||
| 33 | * is deprecated. | ||
| 34 | * | ||
| 35 | * @since JDK1.1 | ||
| 36 | * @deprecated no replacement | ||
| 37 | */ | ||
| 38 | @Deprecated | ||
| 39 | public class Operation { | ||
| 40 | private String operation; | ||
| 41 | |||
| 42 | /** | ||
| 43 | * Creates a new Operation object. | ||
| 44 | * @param op method name | ||
| 45 | * @deprecated no replacement | ||
| 46 | * @since JDK1.1 | ||
| 47 | */ | ||
| 48 | @Deprecated | ||
| 49 | public Operation(String op) { | ||
| 50 | operation = op; | ||
| 51 | } | ||
| 52 | |||
| 53 | /** | ||
| 54 | * Returns the name of the method. | ||
| 55 | * @return method name | ||
| 56 | * @deprecated no replacement | ||
| 57 | * @since JDK1.1 | ||
| 58 | */ | ||
| 59 | @Deprecated | ||
| 60 | public String getOperation() { | ||
| 61 | return operation; | ||
| 62 | } | ||
| 63 | |||
| 64 | /** | ||
| 65 | * Returns the string representation of the operation. | ||
| 66 | * @deprecated no replacement | ||
| 67 | * @since JDK1.1 | ||
| 68 | */ | ||
| 69 | @Deprecated | ||
| 70 | public String toString() { | ||
| 71 | return operation; | ||
| 72 | } | ||
| 73 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.net.MalformedURLException; | ||
| 29 | import java.net.URL; | ||
| 30 | import java.security.AccessController; | ||
| 31 | import java.security.PrivilegedAction; | ||
| 32 | import java.util.Iterator; | ||
| 33 | import java.util.ServiceLoader; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * <code>RMIClassLoader</code> comprises static methods to support | ||
| 37 | * dynamic class loading with RMI. Included are methods for loading | ||
| 38 | * classes from a network location (one or more URLs) and obtaining | ||
| 39 | * the location from which an existing class should be loaded by | ||
| 40 | * remote parties. These methods are used by the RMI runtime when | ||
| 41 | * marshalling and unmarshalling classes contained in the arguments | ||
| 42 | * and return values of remote method calls, and they also may be | ||
| 43 | * invoked directly by applications in order to mimic RMI's dynamic | ||
| 44 | * class loading behavior. | ||
| 45 | * | ||
| 46 | * <p>The implementation of the following static methods | ||
| 47 | * | ||
| 48 | * <ul> | ||
| 49 | * | ||
| 50 | * <li>{@link #loadClass(URL,String)} | ||
| 51 | * <li>{@link #loadClass(String,String)} | ||
| 52 | * <li>{@link #loadClass(String,String,ClassLoader)} | ||
| 53 | * <li>{@link #loadProxyClass(String,String[],ClassLoader)} | ||
| 54 | * <li>{@link #getClassLoader(String)} | ||
| 55 | * <li>{@link #getClassAnnotation(Class)} | ||
| 56 | * | ||
| 57 | * </ul> | ||
| 58 | * | ||
| 59 | * is provided by an instance of {@link RMIClassLoaderSpi}, the | ||
| 60 | * service provider interface for those methods. When one of the | ||
| 61 | * methods is invoked, its behavior is to delegate to a corresponding | ||
| 62 | * method on the service provider instance. The details of how each | ||
| 63 | * method delegates to the provider instance is described in the | ||
| 64 | * documentation for each particular method. | ||
| 65 | * | ||
| 66 | * <p>The service provider instance is chosen as follows: | ||
| 67 | * | ||
| 68 | * <ul> | ||
| 69 | * | ||
| 70 | * <li>If the system property | ||
| 71 | * <code>java.rmi.server.RMIClassLoaderSpi</code> is defined, then if | ||
| 72 | * its value equals the string <code>"default"</code>, the provider | ||
| 73 | * instance will be the value returned by an invocation of the {@link | ||
| 74 | * #getDefaultProviderInstance()} method, and for any other value, if | ||
| 75 | * a class named with the value of the property can be loaded by the | ||
| 76 | * system class loader (see {@link ClassLoader#getSystemClassLoader}) | ||
| 77 | * and that class is assignable to {@link RMIClassLoaderSpi} and has a | ||
| 78 | * public no-argument constructor, then that constructor will be | ||
| 79 | * invoked to create the provider instance. If the property is | ||
| 80 | * defined but any other of those conditions are not true, then an | ||
| 81 | * unspecified <code>Error</code> will be thrown to code that attempts | ||
| 82 | * to use <code>RMIClassLoader</code>, indicating the failure to | ||
| 83 | * obtain a provider instance. | ||
| 84 | * | ||
| 85 | * <li>If a resource named | ||
| 86 | * <code>META-INF/services/java.rmi.server.RMIClassLoaderSpi</code> is | ||
| 87 | * visible to the system class loader, then the contents of that | ||
| 88 | * resource are interpreted as a provider-configuration file, and the | ||
| 89 | * first class name specified in that file is used as the provider | ||
| 90 | * class name. If a class with that name can be loaded by the system | ||
| 91 | * class loader and that class is assignable to {@link | ||
| 92 | * RMIClassLoaderSpi} and has a public no-argument constructor, then | ||
| 93 | * that constructor will be invoked to create the provider instance. | ||
| 94 | * If the resource is found but a provider cannot be instantiated as | ||
| 95 | * described, then an unspecified <code>Error</code> will be thrown to | ||
| 96 | * code that attempts to use <code>RMIClassLoader</code>, indicating | ||
| 97 | * the failure to obtain a provider instance. | ||
| 98 | * | ||
| 99 | * <li>Otherwise, the provider instance will be the value returned by | ||
| 100 | * an invocation of the {@link #getDefaultProviderInstance()} method. | ||
| 101 | * | ||
| 102 | * </ul> | ||
| 103 | * | ||
| 104 | * @author Ann Wollrath | ||
| 105 | * @author Peter Jones | ||
| 106 | * @author Laird Dornin | ||
| 107 | * @see RMIClassLoaderSpi | ||
| 108 | * @since JDK1.1 | ||
| 109 | */ | ||
| 110 | public class RMIClassLoader { | ||
| 111 | |||
| 112 | /** "default" provider instance */ | ||
| 113 | private static final RMIClassLoaderSpi defaultProvider = | ||
| 114 | newDefaultProviderInstance(); | ||
| 115 | |||
| 116 | /** provider instance */ | ||
| 117 | private static final RMIClassLoaderSpi provider = | ||
| 118 | AccessController.doPrivileged( | ||
| 119 | new PrivilegedAction<RMIClassLoaderSpi>() { | ||
| 120 | public RMIClassLoaderSpi run() { return initializeProvider(); } | ||
| 121 | }); | ||
| 122 | |||
| 123 | /* | ||
| 124 | * Disallow anyone from creating one of these. | ||
| 125 | */ | ||
| 126 | private RMIClassLoader() {} | ||
| 127 | |||
| 128 | /** | ||
| 129 | * Loads the class with the specified <code>name</code>. | ||
| 130 | * | ||
| 131 | * <p>This method delegates to {@link #loadClass(String,String)}, | ||
| 132 | * passing <code>null</code> as the first argument and | ||
| 133 | * <code>name</code> as the second argument. | ||
| 134 | * | ||
| 135 | * @param name the name of the class to load | ||
| 136 | * | ||
| 137 | * @return the <code>Class</code> object representing the loaded class | ||
| 138 | * | ||
| 139 | * @throws MalformedURLException if a provider-specific URL used | ||
| 140 | * to load classes is invalid | ||
| 141 | * | ||
| 142 | * @throws ClassNotFoundException if a definition for the class | ||
| 143 | * could not be found at the codebase location | ||
| 144 | * | ||
| 145 | * @deprecated replaced by <code>loadClass(String,String)</code> method | ||
| 146 | * @see #loadClass(String,String) | ||
| 147 | */ | ||
| 148 | @Deprecated | ||
| 149 | public static Class<?> loadClass(String name) | ||
| 150 | throws MalformedURLException, ClassNotFoundException | ||
| 151 | { | ||
| 152 | return loadClass((String) null, name); | ||
| 153 | } | ||
| 154 | |||
| 155 | /** | ||
| 156 | * Loads a class from a codebase URL. | ||
| 157 | * | ||
| 158 | * If <code>codebase</code> is <code>null</code>, then this method | ||
| 159 | * will behave the same as {@link #loadClass(String,String)} with a | ||
| 160 | * <code>null</code> <code>codebase</code> and the given class name. | ||
| 161 | * | ||
| 162 | * <p>This method delegates to the | ||
| 163 | * {@link RMIClassLoaderSpi#loadClass(String,String,ClassLoader)} | ||
| 164 | * method of the provider instance, passing the result of invoking | ||
| 165 | * {@link URL#toString} on the given URL (or <code>null</code> if | ||
| 166 | * <code>codebase</code> is null) as the first argument, | ||
| 167 | * <code>name</code> as the second argument, | ||
| 168 | * and <code>null</code> as the third argument. | ||
| 169 | * | ||
| 170 | * @param codebase the URL to load the class from, or <code>null</code> | ||
| 171 | * | ||
| 172 | * @param name the name of the class to load | ||
| 173 | * | ||
| 174 | * @return the <code>Class</code> object representing the loaded class | ||
| 175 | * | ||
| 176 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 177 | * <code>null</code> and a provider-specific URL used | ||
| 178 | * to load classes is invalid | ||
| 179 | * | ||
| 180 | * @throws ClassNotFoundException if a definition for the class | ||
| 181 | * could not be found at the specified URL | ||
| 182 | */ | ||
| 183 | public static Class<?> loadClass(URL codebase, String name) | ||
| 184 | throws MalformedURLException, ClassNotFoundException | ||
| 185 | { | ||
| 186 | return provider.loadClass( | ||
| 187 | codebase != null ? codebase.toString() : null, name, null); | ||
| 188 | } | ||
| 189 | |||
| 190 | /** | ||
| 191 | * Loads a class from a codebase URL path. | ||
| 192 | * | ||
| 193 | * <p>This method delegates to the | ||
| 194 | * {@link RMIClassLoaderSpi#loadClass(String,String,ClassLoader)} | ||
| 195 | * method of the provider instance, passing <code>codebase</code> | ||
| 196 | * as the first argument, <code>name</code> as the second argument, | ||
| 197 | * and <code>null</code> as the third argument. | ||
| 198 | * | ||
| 199 | * @param codebase the list of URLs (separated by spaces) to load | ||
| 200 | * the class from, or <code>null</code> | ||
| 201 | * | ||
| 202 | * @param name the name of the class to load | ||
| 203 | * | ||
| 204 | * @return the <code>Class</code> object representing the loaded class | ||
| 205 | * | ||
| 206 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 207 | * non-<code>null</code> and contains an invalid URL, or if | ||
| 208 | * <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 209 | * URL used to load classes is invalid | ||
| 210 | * | ||
| 211 | * @throws ClassNotFoundException if a definition for the class | ||
| 212 | * could not be found at the specified location | ||
| 213 | * | ||
| 214 | * @since 1.2 | ||
| 215 | */ | ||
| 216 | public static Class<?> loadClass(String codebase, String name) | ||
| 217 | throws MalformedURLException, ClassNotFoundException | ||
| 218 | { | ||
| 219 | return provider.loadClass(codebase, name, null); | ||
| 220 | } | ||
| 221 | |||
| 222 | /** | ||
| 223 | * Loads a class from a codebase URL path, optionally using the | ||
| 224 | * supplied loader. | ||
| 225 | * | ||
| 226 | * This method should be used when the caller would like to make | ||
| 227 | * available to the provider implementation an additional contextual | ||
| 228 | * class loader to consider, such as the loader of a caller on the | ||
| 229 | * stack. Typically, a provider implementation will attempt to | ||
| 230 | * resolve the named class using the given <code>defaultLoader</code>, | ||
| 231 | * if specified, before attempting to resolve the class from the | ||
| 232 | * codebase URL path. | ||
| 233 | * | ||
| 234 | * <p>This method delegates to the | ||
| 235 | * {@link RMIClassLoaderSpi#loadClass(String,String,ClassLoader)} | ||
| 236 | * method of the provider instance, passing <code>codebase</code> | ||
| 237 | * as the first argument, <code>name</code> as the second argument, | ||
| 238 | * and <code>defaultLoader</code> as the third argument. | ||
| 239 | * | ||
| 240 | * @param codebase the list of URLs (separated by spaces) to load | ||
| 241 | * the class from, or <code>null</code> | ||
| 242 | * | ||
| 243 | * @param name the name of the class to load | ||
| 244 | * | ||
| 245 | * @param defaultLoader additional contextual class loader | ||
| 246 | * to use, or <code>null</code> | ||
| 247 | * | ||
| 248 | * @return the <code>Class</code> object representing the loaded class | ||
| 249 | * | ||
| 250 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 251 | * non-<code>null</code> and contains an invalid URL, or if | ||
| 252 | * <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 253 | * URL used to load classes is invalid | ||
| 254 | * | ||
| 255 | * @throws ClassNotFoundException if a definition for the class | ||
| 256 | * could not be found at the specified location | ||
| 257 | * | ||
| 258 | * @since 1.4 | ||
| 259 | */ | ||
| 260 | public static Class<?> loadClass(String codebase, String name, | ||
| 261 | ClassLoader defaultLoader) | ||
| 262 | throws MalformedURLException, ClassNotFoundException | ||
| 263 | { | ||
| 264 | return provider.loadClass(codebase, name, defaultLoader); | ||
| 265 | } | ||
| 266 | |||
| 267 | /** | ||
| 268 | * Loads a dynamic proxy class (see {@link java.lang.reflect.Proxy}) | ||
| 269 | * that implements a set of interfaces with the given names | ||
| 270 | * from a codebase URL path. | ||
| 271 | * | ||
| 272 | * <p>The interfaces will be resolved similar to classes loaded via | ||
| 273 | * the {@link #loadClass(String,String)} method using the given | ||
| 274 | * <code>codebase</code>. | ||
| 275 | * | ||
| 276 | * <p>This method delegates to the | ||
| 277 | * {@link RMIClassLoaderSpi#loadProxyClass(String,String[],ClassLoader)} | ||
| 278 | * method of the provider instance, passing <code>codebase</code> | ||
| 279 | * as the first argument, <code>interfaces</code> as the second argument, | ||
| 280 | * and <code>defaultLoader</code> as the third argument. | ||
| 281 | * | ||
| 282 | * @param codebase the list of URLs (space-separated) to load | ||
| 283 | * classes from, or <code>null</code> | ||
| 284 | * | ||
| 285 | * @param interfaces the names of the interfaces for the proxy class | ||
| 286 | * to implement | ||
| 287 | * | ||
| 288 | * @param defaultLoader additional contextual class loader | ||
| 289 | * to use, or <code>null</code> | ||
| 290 | * | ||
| 291 | * @return a dynamic proxy class that implements the named interfaces | ||
| 292 | * | ||
| 293 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 294 | * non-<code>null</code> and contains an invalid URL, or | ||
| 295 | * if <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 296 | * URL used to load classes is invalid | ||
| 297 | * | ||
| 298 | * @throws ClassNotFoundException if a definition for one of | ||
| 299 | * the named interfaces could not be found at the specified location, | ||
| 300 | * or if creation of the dynamic proxy class failed (such as if | ||
| 301 | * {@link java.lang.reflect.Proxy#getProxyClass(ClassLoader,Class[])} | ||
| 302 | * would throw an <code>IllegalArgumentException</code> for the given | ||
| 303 | * interface list) | ||
| 304 | * | ||
| 305 | * @since 1.4 | ||
| 306 | */ | ||
| 307 | public static Class<?> loadProxyClass(String codebase, String[] interfaces, | ||
| 308 | ClassLoader defaultLoader) | ||
| 309 | throws ClassNotFoundException, MalformedURLException | ||
| 310 | { | ||
| 311 | return provider.loadProxyClass(codebase, interfaces, defaultLoader); | ||
| 312 | } | ||
| 313 | |||
| 314 | /** | ||
| 315 | * Returns a class loader that loads classes from the given codebase | ||
| 316 | * URL path. | ||
| 317 | * | ||
| 318 | * <p>The class loader returned is the class loader that the | ||
| 319 | * {@link #loadClass(String,String)} method would use to load classes | ||
| 320 | * for the same <code>codebase</code> argument. | ||
| 321 | * | ||
| 322 | * <p>This method delegates to the | ||
| 323 | * {@link RMIClassLoaderSpi#getClassLoader(String)} method | ||
| 324 | * of the provider instance, passing <code>codebase</code> as the argument. | ||
| 325 | * | ||
| 326 | * <p>If there is a security manger, its <code>checkPermission</code> | ||
| 327 | * method will be invoked with a | ||
| 328 | * <code>RuntimePermission("getClassLoader")</code> permission; | ||
| 329 | * this could result in a <code>SecurityException</code>. | ||
| 330 | * The provider implementation of this method may also perform further | ||
| 331 | * security checks to verify that the calling context has permission to | ||
| 332 | * connect to all of the URLs in the codebase URL path. | ||
| 333 | * | ||
| 334 | * @param codebase the list of URLs (space-separated) from which | ||
| 335 | * the returned class loader will load classes from, or <code>null</code> | ||
| 336 | * | ||
| 337 | * @return a class loader that loads classes from the given codebase URL | ||
| 338 | * path | ||
| 339 | * | ||
| 340 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 341 | * non-<code>null</code> and contains an invalid URL, or | ||
| 342 | * if <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 343 | * URL used to identify the class loader is invalid | ||
| 344 | * | ||
| 345 | * @throws SecurityException if there is a security manager and the | ||
| 346 | * invocation of its <code>checkPermission</code> method fails, or | ||
| 347 | * if the caller does not have permission to connect to all of the | ||
| 348 | * URLs in the codebase URL path | ||
| 349 | * | ||
| 350 | * @since 1.3 | ||
| 351 | */ | ||
| 352 | public static ClassLoader getClassLoader(String codebase) | ||
| 353 | throws MalformedURLException, SecurityException | ||
| 354 | { | ||
| 355 | return provider.getClassLoader(codebase); | ||
| 356 | } | ||
| 357 | |||
| 358 | /** | ||
| 359 | * Returns the annotation string (representing a location for | ||
| 360 | * the class definition) that RMI will use to annotate the class | ||
| 361 | * descriptor when marshalling objects of the given class. | ||
| 362 | * | ||
| 363 | * <p>This method delegates to the | ||
| 364 | * {@link RMIClassLoaderSpi#getClassAnnotation(Class)} method | ||
| 365 | * of the provider instance, passing <code>cl</code> as the argument. | ||
| 366 | * | ||
| 367 | * @param cl the class to obtain the annotation for | ||
| 368 | * | ||
| 369 | * @return a string to be used to annotate the given class when | ||
| 370 | * it gets marshalled, or <code>null</code> | ||
| 371 | * | ||
| 372 | * @throws NullPointerException if <code>cl</code> is <code>null</code> | ||
| 373 | * | ||
| 374 | * @since 1.2 | ||
| 375 | */ | ||
| 376 | /* | ||
| 377 | * REMIND: Should we say that the returned class annotation will or | ||
| 378 | * should be a (space-separated) list of URLs? | ||
| 379 | */ | ||
| 380 | public static String getClassAnnotation(Class<?> cl) { | ||
| 381 | return provider.getClassAnnotation(cl); | ||
| 382 | } | ||
| 383 | |||
| 384 | /** | ||
| 385 | * Returns the canonical instance of the default provider | ||
| 386 | * for the service provider interface {@link RMIClassLoaderSpi}. | ||
| 387 | * If the system property <code>java.rmi.server.RMIClassLoaderSpi</code> | ||
| 388 | * is not defined, then the <code>RMIClassLoader</code> static | ||
| 389 | * methods | ||
| 390 | * | ||
| 391 | * <ul> | ||
| 392 | * | ||
| 393 | * <li>{@link #loadClass(URL,String)} | ||
| 394 | * <li>{@link #loadClass(String,String)} | ||
| 395 | * <li>{@link #loadClass(String,String,ClassLoader)} | ||
| 396 | * <li>{@link #loadProxyClass(String,String[],ClassLoader)} | ||
| 397 | * <li>{@link #getClassLoader(String)} | ||
| 398 | * <li>{@link #getClassAnnotation(Class)} | ||
| 399 | * | ||
| 400 | * </ul> | ||
| 401 | * | ||
| 402 | * will use the canonical instance of the default provider | ||
| 403 | * as the service provider instance. | ||
| 404 | * | ||
| 405 | * <p>If there is a security manager, its | ||
| 406 | * <code>checkPermission</code> method will be invoked with a | ||
| 407 | * <code>RuntimePermission("setFactory")</code> permission; this | ||
| 408 | * could result in a <code>SecurityException</code>. | ||
| 409 | * | ||
| 410 | * <p>The default service provider instance implements | ||
| 411 | * {@link RMIClassLoaderSpi} as follows: | ||
| 412 | * | ||
| 413 | * <blockquote> | ||
| 414 | * | ||
| 415 | * <p>The <b>{@link RMIClassLoaderSpi#getClassAnnotation(Class) | ||
| 416 | * getClassAnnotation}</b> method returns a <code>String</code> | ||
| 417 | * representing the codebase URL path that a remote party should | ||
| 418 | * use to download the definition for the specified class. The | ||
| 419 | * format of the returned string is a path of URLs separated by | ||
| 420 | * spaces. | ||
| 421 | * | ||
| 422 | * The codebase string returned depends on the defining class | ||
| 423 | * loader of the specified class: | ||
| 424 | * | ||
| 425 | * <ul> | ||
| 426 | * | ||
| 427 | * <p><li>If the class loader is the system class loader (see | ||
| 428 | * {@link ClassLoader#getSystemClassLoader}), a parent of the | ||
| 429 | * system class loader such as the loader used for installed | ||
| 430 | * extensions, or the bootstrap class loader (which may be | ||
| 431 | * represented by <code>null</code>), then the value of the | ||
| 432 | * <code>java.rmi.server.codebase</code> property (or possibly an | ||
| 433 | * earlier cached value) is returned, or | ||
| 434 | * <code>null</code> is returned if that property is not set. | ||
| 435 | * | ||
| 436 | * <p><li>Otherwise, if the class loader is an instance of | ||
| 437 | * <code>URLClassLoader</code>, then the returned string is a | ||
| 438 | * space-separated list of the external forms of the URLs returned | ||
| 439 | * by invoking the <code>getURLs</code> methods of the loader. If | ||
| 440 | * the <code>URLClassLoader</code> was created by this provider to | ||
| 441 | * service an invocation of its <code>loadClass</code> or | ||
| 442 | * <code>loadProxyClass</code> methods, then no permissions are | ||
| 443 | * required to get the associated codebase string. If it is an | ||
| 444 | * arbitrary other <code>URLClassLoader</code> instance, then if | ||
| 445 | * there is a security manager, its <code>checkPermission</code> | ||
| 446 | * method will be invoked once for each URL returned by the | ||
| 447 | * <code>getURLs</code> method, with the permission returned by | ||
| 448 | * invoking <code>openConnection().getPermission()</code> on each | ||
| 449 | * URL; if any of those invocations throws a | ||
| 450 | * <code>SecurityException</code> or an <code>IOException</code>, | ||
| 451 | * then the value of the <code>java.rmi.server.codebase</code> | ||
| 452 | * property (or possibly an earlier cached value) is returned, or | ||
| 453 | * <code>null</code> is returned if that property is not set. | ||
| 454 | * | ||
| 455 | * <p><li>Finally, if the class loader is not an instance of | ||
| 456 | * <code>URLClassLoader</code>, then the value of the | ||
| 457 | * <code>java.rmi.server.codebase</code> property (or possibly an | ||
| 458 | * earlier cached value) is returned, or | ||
| 459 | * <code>null</code> is returned if that property is not set. | ||
| 460 | * | ||
| 461 | * </ul> | ||
| 462 | * | ||
| 463 | * <p>For the implementations of the methods described below, | ||
| 464 | * which all take a <code>String</code> parameter named | ||
| 465 | * <code>codebase</code> that is a space-separated list of URLs, | ||
| 466 | * each invocation has an associated <i>codebase loader</i> that | ||
| 467 | * is identified using the <code>codebase</code> argument in | ||
| 468 | * conjunction with the current thread's context class loader (see | ||
| 469 | * {@link Thread#getContextClassLoader()}). When there is a | ||
| 470 | * security manager, this provider maintains an internal table of | ||
| 471 | * class loader instances (which are at least instances of {@link | ||
| 472 | * java.net.URLClassLoader}) keyed by the pair of their parent | ||
| 473 | * class loader and their codebase URL path (an ordered list of | ||
| 474 | * URLs). If the <code>codebase</code> argument is <code>null</code>, | ||
| 475 | * the codebase URL path is the value of the system property | ||
| 476 | * <code>java.rmi.server.codebase</code> or possibly an | ||
| 477 | * earlier cached value. For a given codebase URL path passed as the | ||
| 478 | * <code>codebase</code> argument to an invocation of one of the | ||
| 479 | * below methods in a given context, the codebase loader is the | ||
| 480 | * loader in the table with the specified codebase URL path and | ||
| 481 | * the current thread's context class loader as its parent. If no | ||
| 482 | * such loader exists, then one is created and added to the table. | ||
| 483 | * The table does not maintain strong references to its contained | ||
| 484 | * loaders, in order to allow them and their defined classes to be | ||
| 485 | * garbage collected when not otherwise reachable. In order to | ||
| 486 | * prevent arbitrary untrusted code from being implicitly loaded | ||
| 487 | * into a virtual machine with no security manager, if there is no | ||
| 488 | * security manager set, the codebase loader is just the current | ||
| 489 | * thread's context class loader (the supplied codebase URL path | ||
| 490 | * is ignored, so remote class loading is disabled). | ||
| 491 | * | ||
| 492 | * <p>The <b>{@link RMIClassLoaderSpi#getClassLoader(String) | ||
| 493 | * getClassLoader}</b> method returns the codebase loader for the | ||
| 494 | * specified codebase URL path. If there is a security manager, | ||
| 495 | * then if the calling context does not have permission to connect | ||
| 496 | * to all of the URLs in the codebase URL path, a | ||
| 497 | * <code>SecurityException</code> will be thrown. | ||
| 498 | * | ||
| 499 | * <p>The <b>{@link | ||
| 500 | * RMIClassLoaderSpi#loadClass(String,String,ClassLoader) | ||
| 501 | * loadClass}</b> method attempts to load the class with the | ||
| 502 | * specified name as follows: | ||
| 503 | * | ||
| 504 | * <blockquote> | ||
| 505 | * | ||
| 506 | * If the <code>defaultLoader</code> argument is | ||
| 507 | * non-<code>null</code>, it first attempts to load the class with the | ||
| 508 | * specified <code>name</code> using the | ||
| 509 | * <code>defaultLoader</code>, such as by evaluating | ||
| 510 | * | ||
| 511 | * <pre> | ||
| 512 | * Class.forName(name, false, defaultLoader) | ||
| 513 | * </pre> | ||
| 514 | * | ||
| 515 | * If the class is successfully loaded from the | ||
| 516 | * <code>defaultLoader</code>, that class is returned. If an | ||
| 517 | * exception other than <code>ClassNotFoundException</code> is | ||
| 518 | * thrown, that exception is thrown to the caller. | ||
| 519 | * | ||
| 520 | * <p>Next, the <code>loadClass</code> method attempts to load the | ||
| 521 | * class with the specified <code>name</code> using the codebase | ||
| 522 | * loader for the specified codebase URL path. | ||
| 523 | * If there is a security manager, then the calling context | ||
| 524 | * must have permission to connect to all of the URLs in the | ||
| 525 | * codebase URL path; otherwise, the current thread's context | ||
| 526 | * class loader will be used instead of the codebase loader. | ||
| 527 | * | ||
| 528 | * </blockquote> | ||
| 529 | * | ||
| 530 | * <p>The <b>{@link | ||
| 531 | * RMIClassLoaderSpi#loadProxyClass(String,String[],ClassLoader) | ||
| 532 | * loadProxyClass}</b> method attempts to return a dynamic proxy | ||
| 533 | * class with the named interface as follows: | ||
| 534 | * | ||
| 535 | * <blockquote> | ||
| 536 | * | ||
| 537 | * <p>If the <code>defaultLoader</code> argument is | ||
| 538 | * non-<code>null</code> and all of the named interfaces can be | ||
| 539 | * resolved through that loader, then, | ||
| 540 | * | ||
| 541 | * <ul> | ||
| 542 | * | ||
| 543 | * <li>if all of the resolved interfaces are <code>public</code>, | ||
| 544 | * then it first attempts to obtain a dynamic proxy class (using | ||
| 545 | * {@link | ||
| 546 | * java.lang.reflect.Proxy#getProxyClass(ClassLoader,Class[]) | ||
| 547 | * Proxy.getProxyClass}) for the resolved interfaces defined in | ||
| 548 | * the codebase loader; if that attempt throws an | ||
| 549 | * <code>IllegalArgumentException</code>, it then attempts to | ||
| 550 | * obtain a dynamic proxy class for the resolved interfaces | ||
| 551 | * defined in the <code>defaultLoader</code>. If both attempts | ||
| 552 | * throw <code>IllegalArgumentException</code>, then this method | ||
| 553 | * throws a <code>ClassNotFoundException</code>. If any other | ||
| 554 | * exception is thrown, that exception is thrown to the caller. | ||
| 555 | * | ||
| 556 | * <li>if all of the non-<code>public</code> resolved interfaces | ||
| 557 | * are defined in the same class loader, then it attempts to | ||
| 558 | * obtain a dynamic proxy class for the resolved interfaces | ||
| 559 | * defined in that loader. | ||
| 560 | * | ||
| 561 | * <li>otherwise, a <code>LinkageError</code> is thrown (because a | ||
| 562 | * class that implements all of the specified interfaces cannot be | ||
| 563 | * defined in any loader). | ||
| 564 | * | ||
| 565 | * </ul> | ||
| 566 | * | ||
| 567 | * <p>Otherwise, if all of the named interfaces can be resolved | ||
| 568 | * through the codebase loader, then, | ||
| 569 | * | ||
| 570 | * <ul> | ||
| 571 | * | ||
| 572 | * <li>if all of the resolved interfaces are <code>public</code>, | ||
| 573 | * then it attempts to obtain a dynamic proxy class for the | ||
| 574 | * resolved interfaces in the codebase loader. If the attempt | ||
| 575 | * throws an <code>IllegalArgumentException</code>, then this | ||
| 576 | * method throws a <code>ClassNotFoundException</code>. | ||
| 577 | * | ||
| 578 | * <li>if all of the non-<code>public</code> resolved interfaces | ||
| 579 | * are defined in the same class loader, then it attempts to | ||
| 580 | * obtain a dynamic proxy class for the resolved interfaces | ||
| 581 | * defined in that loader. | ||
| 582 | * | ||
| 583 | * <li>otherwise, a <code>LinkageError</code> is thrown (because a | ||
| 584 | * class that implements all of the specified interfaces cannot be | ||
| 585 | * defined in any loader). | ||
| 586 | * | ||
| 587 | * </ul> | ||
| 588 | * | ||
| 589 | * <p>Otherwise, a <code>ClassNotFoundException</code> is thrown | ||
| 590 | * for one of the named interfaces that could not be resolved. | ||
| 591 | * | ||
| 592 | * </blockquote> | ||
| 593 | * | ||
| 594 | * </blockquote> | ||
| 595 | * | ||
| 596 | * @return the canonical instance of the default service provider | ||
| 597 | * | ||
| 598 | * @throws SecurityException if there is a security manager and the | ||
| 599 | * invocation of its <code>checkPermission</code> method fails | ||
| 600 | * | ||
| 601 | * @since 1.4 | ||
| 602 | */ | ||
| 603 | public static RMIClassLoaderSpi getDefaultProviderInstance() { | ||
| 604 | SecurityManager sm = System.getSecurityManager(); | ||
| 605 | if (sm != null) { | ||
| 606 | sm.checkPermission(new RuntimePermission("setFactory")); | ||
| 607 | } | ||
| 608 | return defaultProvider; | ||
| 609 | } | ||
| 610 | |||
| 611 | /** | ||
| 612 | * Returns the security context of the given class loader. | ||
| 613 | * | ||
| 614 | * @param loader a class loader from which to get the security context | ||
| 615 | * | ||
| 616 | * @return the security context | ||
| 617 | * | ||
| 618 | * @deprecated no replacement. As of the Java 2 platform v1.2, RMI no | ||
| 619 | * longer uses this method to obtain a class loader's security context. | ||
| 620 | * @see java.lang.SecurityManager#getSecurityContext() | ||
| 621 | */ | ||
| 622 | @Deprecated | ||
| 623 | public static Object getSecurityContext(ClassLoader loader) | ||
| 624 | { | ||
| 625 | return sun.rmi.server.LoaderHandler.getSecurityContext(loader); | ||
| 626 | } | ||
| 627 | |||
| 628 | /** | ||
| 629 | * Creates an instance of the default provider class. | ||
| 630 | */ | ||
| 631 | private static RMIClassLoaderSpi newDefaultProviderInstance() { | ||
| 632 | return new RMIClassLoaderSpi() { | ||
| 633 | public Class<?> loadClass(String codebase, String name, | ||
| 634 | ClassLoader defaultLoader) | ||
| 635 | throws MalformedURLException, ClassNotFoundException | ||
| 636 | { | ||
| 637 | return sun.rmi.server.LoaderHandler.loadClass( | ||
| 638 | codebase, name, defaultLoader); | ||
| 639 | } | ||
| 640 | |||
| 641 | public Class<?> loadProxyClass(String codebase, | ||
| 642 | String[] interfaces, | ||
| 643 | ClassLoader defaultLoader) | ||
| 644 | throws MalformedURLException, ClassNotFoundException | ||
| 645 | { | ||
| 646 | return sun.rmi.server.LoaderHandler.loadProxyClass( | ||
| 647 | codebase, interfaces, defaultLoader); | ||
| 648 | } | ||
| 649 | |||
| 650 | public ClassLoader getClassLoader(String codebase) | ||
| 651 | throws MalformedURLException | ||
| 652 | { | ||
| 653 | return sun.rmi.server.LoaderHandler.getClassLoader(codebase); | ||
| 654 | } | ||
| 655 | |||
| 656 | public String getClassAnnotation(Class<?> cl) { | ||
| 657 | return sun.rmi.server.LoaderHandler.getClassAnnotation(cl); | ||
| 658 | } | ||
| 659 | }; | ||
| 660 | } | ||
| 661 | |||
| 662 | /** | ||
| 663 | * Chooses provider instance, following above documentation. | ||
| 664 | * | ||
| 665 | * This method assumes that it has been invoked in a privileged block. | ||
| 666 | */ | ||
| 667 | private static RMIClassLoaderSpi initializeProvider() { | ||
| 668 | /* | ||
| 669 | * First check for the system property being set: | ||
| 670 | */ | ||
| 671 | String providerClassName = | ||
| 672 | System.getProperty("java.rmi.server.RMIClassLoaderSpi"); | ||
| 673 | |||
| 674 | if (providerClassName != null) { | ||
| 675 | if (providerClassName.equals("default")) { | ||
| 676 | return defaultProvider; | ||
| 677 | } | ||
| 678 | |||
| 679 | try { | ||
| 680 | Class<? extends RMIClassLoaderSpi> providerClass = | ||
| 681 | Class.forName(providerClassName, false, | ||
| 682 | ClassLoader.getSystemClassLoader()) | ||
| 683 | .asSubclass(RMIClassLoaderSpi.class); | ||
| 684 | return providerClass.newInstance(); | ||
| 685 | |||
| 686 | } catch (ClassNotFoundException e) { | ||
| 687 | throw new NoClassDefFoundError(e.getMessage()); | ||
| 688 | } catch (IllegalAccessException e) { | ||
| 689 | throw new IllegalAccessError(e.getMessage()); | ||
| 690 | } catch (InstantiationException e) { | ||
| 691 | throw new InstantiationError(e.getMessage()); | ||
| 692 | } catch (ClassCastException e) { | ||
| 693 | Error error = new LinkageError( | ||
| 694 | "provider class not assignable to RMIClassLoaderSpi"); | ||
| 695 | error.initCause(e); | ||
| 696 | throw error; | ||
| 697 | } | ||
| 698 | } | ||
| 699 | |||
| 700 | /* | ||
| 701 | * Next look for a provider configuration file installed: | ||
| 702 | */ | ||
| 703 | Iterator<RMIClassLoaderSpi> iter = | ||
| 704 | ServiceLoader.load(RMIClassLoaderSpi.class, | ||
| 705 | ClassLoader.getSystemClassLoader()).iterator(); | ||
| 706 | if (iter.hasNext()) { | ||
| 707 | try { | ||
| 708 | return iter.next(); | ||
| 709 | } catch (ClassCastException e) { | ||
| 710 | Error error = new LinkageError( | ||
| 711 | "provider class not assignable to RMIClassLoaderSpi"); | ||
| 712 | error.initCause(e); | ||
| 713 | throw error; | ||
| 714 | } | ||
| 715 | } | ||
| 716 | |||
| 717 | /* | ||
| 718 | * Finally, return the canonical instance of the default provider. | ||
| 719 | */ | ||
| 720 | return defaultProvider; | ||
| 721 | } | ||
| 722 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.net.MalformedURLException; | ||
| 29 | import java.net.URL; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * <code>RMIClassLoaderSpi</code> is the service provider interface for | ||
| 33 | * <code>RMIClassLoader</code>. | ||
| 34 | * | ||
| 35 | * In particular, an <code>RMIClassLoaderSpi</code> instance provides an | ||
| 36 | * implementation of the following static methods of | ||
| 37 | * <code>RMIClassLoader</code>: | ||
| 38 | * | ||
| 39 | * <ul> | ||
| 40 | * | ||
| 41 | * <li>{@link RMIClassLoader#loadClass(URL,String)} | ||
| 42 | * <li>{@link RMIClassLoader#loadClass(String,String)} | ||
| 43 | * <li>{@link RMIClassLoader#loadClass(String,String,ClassLoader)} | ||
| 44 | * <li>{@link RMIClassLoader#loadProxyClass(String,String[],ClassLoader)} | ||
| 45 | * <li>{@link RMIClassLoader#getClassLoader(String)} | ||
| 46 | * <li>{@link RMIClassLoader#getClassAnnotation(Class)} | ||
| 47 | * | ||
| 48 | * </ul> | ||
| 49 | * | ||
| 50 | * When one of those methods is invoked, its behavior is to delegate | ||
| 51 | * to a corresponding method on an instance of this class. | ||
| 52 | * The details of how each method delegates to the provider instance is | ||
| 53 | * described in the documentation for each particular method. | ||
| 54 | * See the documentation for {@link RMIClassLoader} for a description | ||
| 55 | * of how a provider instance is chosen. | ||
| 56 | * | ||
| 57 | * @author Peter Jones | ||
| 58 | * @author Laird Dornin | ||
| 59 | * @see RMIClassLoader | ||
| 60 | * @since 1.4 | ||
| 61 | */ | ||
| 62 | public abstract class RMIClassLoaderSpi { | ||
| 63 | |||
| 64 | /** | ||
| 65 | * Provides the implementation for | ||
| 66 | * {@link RMIClassLoader#loadClass(URL,String)}, | ||
| 67 | * {@link RMIClassLoader#loadClass(String,String)}, and | ||
| 68 | * {@link RMIClassLoader#loadClass(String,String,ClassLoader)}. | ||
| 69 | * | ||
| 70 | * Loads a class from a codebase URL path, optionally using the | ||
| 71 | * supplied loader. | ||
| 72 | * | ||
| 73 | * Typically, a provider implementation will attempt to | ||
| 74 | * resolve the named class using the given <code>defaultLoader</code>, | ||
| 75 | * if specified, before attempting to resolve the class from the | ||
| 76 | * codebase URL path. | ||
| 77 | * | ||
| 78 | * <p>An implementation of this method must either return a class | ||
| 79 | * with the given name or throw an exception. | ||
| 80 | * | ||
| 81 | * @param codebase the list of URLs (separated by spaces) to load | ||
| 82 | * the class from, or <code>null</code> | ||
| 83 | * | ||
| 84 | * @param name the name of the class to load | ||
| 85 | * | ||
| 86 | * @param defaultLoader additional contextual class loader | ||
| 87 | * to use, or <code>null</code> | ||
| 88 | * | ||
| 89 | * @return the <code>Class</code> object representing the loaded class | ||
| 90 | * | ||
| 91 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 92 | * non-<code>null</code> and contains an invalid URL, or | ||
| 93 | * if <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 94 | * URL used to load classes is invalid | ||
| 95 | * | ||
| 96 | * @throws ClassNotFoundException if a definition for the class | ||
| 97 | * could not be found at the specified location | ||
| 98 | */ | ||
| 99 | public abstract Class<?> loadClass(String codebase, String name, | ||
| 100 | ClassLoader defaultLoader) | ||
| 101 | throws MalformedURLException, ClassNotFoundException; | ||
| 102 | |||
| 103 | /** | ||
| 104 | * Provides the implementation for | ||
| 105 | * {@link RMIClassLoader#loadProxyClass(String,String[],ClassLoader)}. | ||
| 106 | * | ||
| 107 | * Loads a dynamic proxy class (see {@link java.lang.reflect.Proxy} | ||
| 108 | * that implements a set of interfaces with the given names | ||
| 109 | * from a codebase URL path, optionally using the supplied loader. | ||
| 110 | * | ||
| 111 | * <p>An implementation of this method must either return a proxy | ||
| 112 | * class that implements the named interfaces or throw an exception. | ||
| 113 | * | ||
| 114 | * @param codebase the list of URLs (space-separated) to load | ||
| 115 | * classes from, or <code>null</code> | ||
| 116 | * | ||
| 117 | * @param interfaces the names of the interfaces for the proxy class | ||
| 118 | * to implement | ||
| 119 | * | ||
| 120 | * @return a dynamic proxy class that implements the named interfaces | ||
| 121 | * | ||
| 122 | * @param defaultLoader additional contextual class loader | ||
| 123 | * to use, or <code>null</code> | ||
| 124 | * | ||
| 125 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 126 | * non-<code>null</code> and contains an invalid URL, or | ||
| 127 | * if <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 128 | * URL used to load classes is invalid | ||
| 129 | * | ||
| 130 | * @throws ClassNotFoundException if a definition for one of | ||
| 131 | * the named interfaces could not be found at the specified location, | ||
| 132 | * or if creation of the dynamic proxy class failed (such as if | ||
| 133 | * {@link java.lang.reflect.Proxy#getProxyClass(ClassLoader,Class[])} | ||
| 134 | * would throw an <code>IllegalArgumentException</code> for the given | ||
| 135 | * interface list) | ||
| 136 | */ | ||
| 137 | public abstract Class<?> loadProxyClass(String codebase, | ||
| 138 | String[] interfaces, | ||
| 139 | ClassLoader defaultLoader) | ||
| 140 | throws MalformedURLException, ClassNotFoundException; | ||
| 141 | |||
| 142 | /** | ||
| 143 | * Provides the implementation for | ||
| 144 | * {@link RMIClassLoader#getClassLoader(String)}. | ||
| 145 | * | ||
| 146 | * Returns a class loader that loads classes from the given codebase | ||
| 147 | * URL path. | ||
| 148 | * | ||
| 149 | * <p>If there is a security manger, its <code>checkPermission</code> | ||
| 150 | * method will be invoked with a | ||
| 151 | * <code>RuntimePermission("getClassLoader")</code> permission; | ||
| 152 | * this could result in a <code>SecurityException</code>. | ||
| 153 | * The implementation of this method may also perform further security | ||
| 154 | * checks to verify that the calling context has permission to connect | ||
| 155 | * to all of the URLs in the codebase URL path. | ||
| 156 | * | ||
| 157 | * @param codebase the list of URLs (space-separated) from which | ||
| 158 | * the returned class loader will load classes from, or <code>null</code> | ||
| 159 | * | ||
| 160 | * @return a class loader that loads classes from the given codebase URL | ||
| 161 | * path | ||
| 162 | * | ||
| 163 | * @throws MalformedURLException if <code>codebase</code> is | ||
| 164 | * non-<code>null</code> and contains an invalid URL, or | ||
| 165 | * if <code>codebase</code> is <code>null</code> and a provider-specific | ||
| 166 | * URL used to identify the class loader is invalid | ||
| 167 | * | ||
| 168 | * @throws SecurityException if there is a security manager and the | ||
| 169 | * invocation of its <code>checkPermission</code> method fails, or | ||
| 170 | * if the caller does not have permission to connect to all of the | ||
| 171 | * URLs in the codebase URL path | ||
| 172 | */ | ||
| 173 | public abstract ClassLoader getClassLoader(String codebase) | ||
| 174 | throws MalformedURLException; // SecurityException | ||
| 175 | |||
| 176 | /** | ||
| 177 | * Provides the implementation for | ||
| 178 | * {@link RMIClassLoader#getClassAnnotation(Class)}. | ||
| 179 | * | ||
| 180 | * Returns the annotation string (representing a location for | ||
| 181 | * the class definition) that RMI will use to annotate the class | ||
| 182 | * descriptor when marshalling objects of the given class. | ||
| 183 | * | ||
| 184 | * @param cl the class to obtain the annotation for | ||
| 185 | * | ||
| 186 | * @return a string to be used to annotate the given class when | ||
| 187 | * it gets marshalled, or <code>null</code> | ||
| 188 | * | ||
| 189 | * @throws NullPointerException if <code>cl</code> is <code>null</code> | ||
| 190 | */ | ||
| 191 | public abstract String getClassAnnotation(Class<?> cl); | ||
| 192 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.net.*; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * An <code>RMIClientSocketFactory</code> instance is used by the RMI runtime | ||
| 33 | * in order to obtain client sockets for RMI calls. A remote object can be | ||
| 34 | * associated with an <code>RMIClientSocketFactory</code> when it is | ||
| 35 | * created/exported via the constructors or <code>exportObject</code> methods | ||
| 36 | * of <code>java.rmi.server.UnicastRemoteObject</code> and | ||
| 37 | * <code>java.rmi.activation.Activatable</code> . | ||
| 38 | * | ||
| 39 | * <p>An <code>RMIClientSocketFactory</code> instance associated with a remote | ||
| 40 | * object will be downloaded to clients when the remote object's reference is | ||
| 41 | * transmitted in an RMI call. This <code>RMIClientSocketFactory</code> will | ||
| 42 | * be used to create connections to the remote object for remote method calls. | ||
| 43 | * | ||
| 44 | * <p>An <code>RMIClientSocketFactory</code> instance can also be associated | ||
| 45 | * with a remote object registry so that clients can use custom socket | ||
| 46 | * communication with a remote object registry. | ||
| 47 | * | ||
| 48 | * <p>An implementation of this interface should be serializable and | ||
| 49 | * should implement {@link Object#equals} to return <code>true</code> when | ||
| 50 | * passed an instance that represents the same (functionally equivalent) | ||
| 51 | * client socket factory, and <code>false</code> otherwise (and it should also | ||
| 52 | * implement {@link Object#hashCode} consistently with its | ||
| 53 | * <code>Object.equals</code> implementation). | ||
| 54 | * | ||
| 55 | * @author Ann Wollrath | ||
| 56 | * @author Peter Jones | ||
| 57 | * @since 1.2 | ||
| 58 | * @see java.rmi.server.UnicastRemoteObject | ||
| 59 | * @see java.rmi.activation.Activatable | ||
| 60 | * @see java.rmi.registry.LocateRegistry | ||
| 61 | */ | ||
| 62 | public interface RMIClientSocketFactory { | ||
| 63 | |||
| 64 | /** | ||
| 65 | * Create a client socket connected to the specified host and port. | ||
| 66 | * @param host the host name | ||
| 67 | * @param port the port number | ||
| 68 | * @return a socket connected to the specified host and port. | ||
| 69 | * @exception IOException if an I/O error occurs during socket creation | ||
| 70 | * @since 1.2 | ||
| 71 | */ | ||
| 72 | public Socket createSocket(String host, int port) | ||
| 73 | throws IOException; | ||
| 74 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * An <code>RMIFailureHandler</code> can be registered via the | ||
| 30 | * <code>RMISocketFactory.setFailureHandler</code> call. The | ||
| 31 | * <code>failure</code> method of the handler is invoked when the RMI | ||
| 32 | * runtime is unable to create a <code>ServerSocket</code> to listen | ||
| 33 | * for incoming calls. The <code>failure</code> method returns a boolean | ||
| 34 | * indicating whether the runtime should attempt to re-create the | ||
| 35 | * <code>ServerSocket</code>. | ||
| 36 | * | ||
| 37 | * @author Ann Wollrath | ||
| 38 | * @since JDK1.1 | ||
| 39 | */ | ||
| 40 | public interface RMIFailureHandler { | ||
| 41 | |||
| 42 | /** | ||
| 43 | * The <code>failure</code> callback is invoked when the RMI | ||
| 44 | * runtime is unable to create a <code>ServerSocket</code> via the | ||
| 45 | * <code>RMISocketFactory</code>. An <code>RMIFailureHandler</code> | ||
| 46 | * is registered via a call to | ||
| 47 | * <code>RMISocketFacotry.setFailureHandler</code>. If no failure | ||
| 48 | * handler is installed, the default behavior is to attempt to | ||
| 49 | * re-create the ServerSocket. | ||
| 50 | * | ||
| 51 | * @param ex the exception that occurred during <code>ServerSocket</code> | ||
| 52 | * creation | ||
| 53 | * @return if true, the RMI runtime attempts to retry | ||
| 54 | * <code>ServerSocket</code> creation | ||
| 55 | * @see java.rmi.server.RMISocketFactory#setFailureHandler(RMIFailureHandler) | ||
| 56 | * @since JDK1.1 | ||
| 57 | */ | ||
| 58 | public boolean failure(Exception ex); | ||
| 59 | |||
| 60 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.net.*; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * An <code>RMIServerSocketFactory</code> instance is used by the RMI runtime | ||
| 33 | * in order to obtain server sockets for RMI calls. A remote object can be | ||
| 34 | * associated with an <code>RMIServerSocketFactory</code> when it is | ||
| 35 | * created/exported via the constructors or <code>exportObject</code> methods | ||
| 36 | * of <code>java.rmi.server.UnicastRemoteObject</code> and | ||
| 37 | * <code>java.rmi.activation.Activatable</code> . | ||
| 38 | * | ||
| 39 | * <p>An <code>RMIServerSocketFactory</code> instance associated with a remote | ||
| 40 | * object is used to obtain the <code>ServerSocket</code> used to accept | ||
| 41 | * incoming calls from clients. | ||
| 42 | * | ||
| 43 | * <p>An <code>RMIServerSocketFactory</code> instance can also be associated | ||
| 44 | * with a remote object registry so that clients can use custom socket | ||
| 45 | * communication with a remote object registry. | ||
| 46 | * | ||
| 47 | * <p>An implementation of this interface | ||
| 48 | * should implement {@link Object#equals} to return <code>true</code> when | ||
| 49 | * passed an instance that represents the same (functionally equivalent) | ||
| 50 | * server socket factory, and <code>false</code> otherwise (and it should also | ||
| 51 | * implement {@link Object#hashCode} consistently with its | ||
| 52 | * <code>Object.equals</code> implementation). | ||
| 53 | * | ||
| 54 | * @author Ann Wollrath | ||
| 55 | * @author Peter Jones | ||
| 56 | * @since 1.2 | ||
| 57 | * @see java.rmi.server.UnicastRemoteObject | ||
| 58 | * @see java.rmi.activation.Activatable | ||
| 59 | * @see java.rmi.registry.LocateRegistry | ||
| 60 | */ | ||
| 61 | public interface RMIServerSocketFactory { | ||
| 62 | |||
| 63 | /** | ||
| 64 | * Create a server socket on the specified port (port 0 indicates | ||
| 65 | * an anonymous port). | ||
| 66 | * @param port the port number | ||
| 67 | * @return the server socket on the specified port | ||
| 68 | * @exception IOException if an I/O error occurs during server socket | ||
| 69 | * creation | ||
| 70 | * @since 1.2 | ||
| 71 | */ | ||
| 72 | public ServerSocket createServerSocket(int port) | ||
| 73 | throws IOException; | ||
| 74 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2002, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.io.*; | ||
| 29 | import java.net.*; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * An <code>RMISocketFactory</code> instance is used by the RMI runtime | ||
| 33 | * in order to obtain client and server sockets for RMI calls. An | ||
| 34 | * application may use the <code>setSocketFactory</code> method to | ||
| 35 | * request that the RMI runtime use its socket factory instance | ||
| 36 | * instead of the default implementation.<p> | ||
| 37 | * | ||
| 38 | * The default socket factory implementation used goes through a | ||
| 39 | * three-tiered approach to creating client sockets. First, a direct | ||
| 40 | * socket connection to the remote VM is attempted. If that fails | ||
| 41 | * (due to a firewall), the runtime uses HTTP with the explicit port | ||
| 42 | * number of the server. If the firewall does not allow this type of | ||
| 43 | * communication, then HTTP to a cgi-bin script on the server is used | ||
| 44 | * to POST the RMI call.<p> | ||
| 45 | * | ||
| 46 | * @author Ann Wollrath | ||
| 47 | * @author Peter Jones | ||
| 48 | * @since JDK1.1 | ||
| 49 | */ | ||
| 50 | public abstract class RMISocketFactory | ||
| 51 | implements RMIClientSocketFactory, RMIServerSocketFactory | ||
| 52 | { | ||
| 53 | |||
| 54 | /** Client/server socket factory to be used by RMI runtime */ | ||
| 55 | private static RMISocketFactory factory = null; | ||
| 56 | /** default socket factory used by this RMI implementation */ | ||
| 57 | private static RMISocketFactory defaultSocketFactory; | ||
| 58 | /** Handler for socket creation failure */ | ||
| 59 | private static RMIFailureHandler handler = null; | ||
| 60 | |||
| 61 | /** | ||
| 62 | * Constructs an <code>RMISocketFactory</code>. | ||
| 63 | * @since JDK1.1 | ||
| 64 | */ | ||
| 65 | public RMISocketFactory() { | ||
| 66 | super(); | ||
| 67 | } | ||
| 68 | |||
| 69 | /** | ||
| 70 | * Creates a client socket connected to the specified host and port. | ||
| 71 | * @param host the host name | ||
| 72 | * @param port the port number | ||
| 73 | * @return a socket connected to the specified host and port. | ||
| 74 | * @exception IOException if an I/O error occurs during socket creation | ||
| 75 | * @since JDK1.1 | ||
| 76 | */ | ||
| 77 | public abstract Socket createSocket(String host, int port) | ||
| 78 | throws IOException; | ||
| 79 | |||
| 80 | /** | ||
| 81 | * Create a server socket on the specified port (port 0 indicates | ||
| 82 | * an anonymous port). | ||
| 83 | * @param port the port number | ||
| 84 | * @return the server socket on the specified port | ||
| 85 | * @exception IOException if an I/O error occurs during server socket | ||
| 86 | * creation | ||
| 87 | * @since JDK1.1 | ||
| 88 | */ | ||
| 89 | public abstract ServerSocket createServerSocket(int port) | ||
| 90 | throws IOException; | ||
| 91 | |||
| 92 | /** | ||
| 93 | * Set the global socket factory from which RMI gets sockets (if the | ||
| 94 | * remote object is not associated with a specific client and/or server | ||
| 95 | * socket factory). The RMI socket factory can only be set once. Note: The | ||
| 96 | * RMISocketFactory may only be set if the current security manager allows | ||
| 97 | * setting a socket factory; if disallowed, a SecurityException will be | ||
| 98 | * thrown. | ||
| 99 | * @param fac the socket factory | ||
| 100 | * @exception IOException if the RMI socket factory is already set | ||
| 101 | * @exception SecurityException if a security manager exists and its | ||
| 102 | * <code>checkSetFactory</code> method doesn't allow the operation. | ||
| 103 | * @see #getSocketFactory | ||
| 104 | * @see java.lang.SecurityManager#checkSetFactory() | ||
| 105 | * @since JDK1.1 | ||
| 106 | */ | ||
| 107 | public synchronized static void setSocketFactory(RMISocketFactory fac) | ||
| 108 | throws IOException | ||
| 109 | { | ||
| 110 | if (factory != null) { | ||
| 111 | throw new SocketException("factory already defined"); | ||
| 112 | } | ||
| 113 | SecurityManager security = System.getSecurityManager(); | ||
| 114 | if (security != null) { | ||
| 115 | security.checkSetFactory(); | ||
| 116 | } | ||
| 117 | factory = fac; | ||
| 118 | } | ||
| 119 | |||
| 120 | /** | ||
| 121 | * Returns the socket factory set by the <code>setSocketFactory</code> | ||
| 122 | * method. Returns <code>null</code> if no socket factory has been | ||
| 123 | * set. | ||
| 124 | * @return the socket factory | ||
| 125 | * @see #setSocketFactory(RMISocketFactory) | ||
| 126 | * @since JDK1.1 | ||
| 127 | */ | ||
| 128 | public synchronized static RMISocketFactory getSocketFactory() | ||
| 129 | { | ||
| 130 | return factory; | ||
| 131 | } | ||
| 132 | |||
| 133 | /** | ||
| 134 | * Returns a reference to the default socket factory used | ||
| 135 | * by this RMI implementation. This will be the factory used | ||
| 136 | * by the RMI runtime when <code>getSocketFactory</code> | ||
| 137 | * returns <code>null</code>. | ||
| 138 | * @return the default RMI socket factory | ||
| 139 | * @since JDK1.1 | ||
| 140 | */ | ||
| 141 | public synchronized static RMISocketFactory getDefaultSocketFactory() { | ||
| 142 | if (defaultSocketFactory == null) { | ||
| 143 | defaultSocketFactory = | ||
| 144 | new sun.rmi.transport.proxy.RMIMasterSocketFactory(); | ||
| 145 | } | ||
| 146 | return defaultSocketFactory; | ||
| 147 | } | ||
| 148 | |||
| 149 | /** | ||
| 150 | * Sets the failure handler to be called by the RMI runtime if server | ||
| 151 | * socket creation fails. By default, if no failure handler is installed | ||
| 152 | * and server socket creation fails, the RMI runtime does attempt to | ||
| 153 | * recreate the server socket. | ||
| 154 | * | ||
| 155 | * <p>If there is a security manager, this method first calls | ||
| 156 | * the security manager's <code>checkSetFactory</code> method | ||
| 157 | * to ensure the operation is allowed. | ||
| 158 | * This could result in a <code>SecurityException</code>. | ||
| 159 | * | ||
| 160 | * @param fh the failure handler | ||
| 161 | * @throws SecurityException if a security manager exists and its | ||
| 162 | * <code>checkSetFactory</code> method doesn't allow the | ||
| 163 | * operation. | ||
| 164 | * @see #getFailureHandler | ||
| 165 | * @see java.rmi.server.RMIFailureHandler#failure(Exception) | ||
| 166 | * @since JDK1.1 | ||
| 167 | */ | ||
| 168 | public synchronized static void setFailureHandler(RMIFailureHandler fh) | ||
| 169 | { | ||
| 170 | SecurityManager security = System.getSecurityManager(); | ||
| 171 | if (security != null) { | ||
| 172 | security.checkSetFactory(); | ||
| 173 | } | ||
| 174 | handler = fh; | ||
| 175 | } | ||
| 176 | |||
| 177 | /** | ||
| 178 | * Returns the handler for socket creation failure set by the | ||
| 179 | * <code>setFailureHandler</code> method. | ||
| 180 | * @return the failure handler | ||
| 181 | * @see #setFailureHandler(RMIFailureHandler) | ||
| 182 | * @since JDK1.1 | ||
| 183 | */ | ||
| 184 | public synchronized static RMIFailureHandler getFailureHandler() | ||
| 185 | { | ||
| 186 | return handler; | ||
| 187 | } | ||
| 188 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | import java.rmi.*; | ||
| 28 | import java.io.ObjectOutput; | ||
| 29 | import java.io.ObjectInput; | ||
| 30 | import java.io.StreamCorruptedException; | ||
| 31 | import java.io.IOException; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * <code>RemoteCall</code> is an abstraction used solely by the RMI runtime | ||
| 35 | * (in conjunction with stubs and skeletons of remote objects) to carry out a | ||
| 36 | * call to a remote object. The <code>RemoteCall</code> interface is | ||
| 37 | * deprecated because it is only used by deprecated methods of | ||
| 38 | * <code>java.rmi.server.RemoteRef</code>. | ||
| 39 | * | ||
| 40 | * @since JDK1.1 | ||
| 41 | * @author Ann Wollrath | ||
| 42 | * @author Roger Riggs | ||
| 43 | * @see java.rmi.server.RemoteRef | ||
| 44 | * @deprecated no replacement. | ||
| 45 | */ | ||
| 46 | @Deprecated | ||
| 47 | public interface RemoteCall { | ||
| 48 | |||
| 49 | /** | ||
| 50 | * Return the output stream the stub/skeleton should put arguments/results | ||
| 51 | * into. | ||
| 52 | * | ||
| 53 | * @return output stream for arguments/results | ||
| 54 | * @exception java.io.IOException if an I/O error occurs. | ||
| 55 | * @since JDK1.1 | ||
| 56 | * @deprecated no replacement | ||
| 57 | */ | ||
| 58 | @Deprecated | ||
| 59 | ObjectOutput getOutputStream() throws IOException; | ||
| 60 | |||
| 61 | /** | ||
| 62 | * Release the output stream; in some transports this would release | ||
| 63 | * the stream. | ||
| 64 | * | ||
| 65 | * @exception java.io.IOException if an I/O error occurs. | ||
| 66 | * @since JDK1.1 | ||
| 67 | * @deprecated no replacement | ||
| 68 | */ | ||
| 69 | @Deprecated | ||
| 70 | void releaseOutputStream() throws IOException; | ||
| 71 | |||
| 72 | /** | ||
| 73 | * Get the InputStream that the stub/skeleton should get | ||
| 74 | * results/arguments from. | ||
| 75 | * | ||
| 76 | * @return input stream for reading arguments/results | ||
| 77 | * @exception java.io.IOException if an I/O error occurs. | ||
| 78 | * @since JDK1.1 | ||
| 79 | * @deprecated no replacement | ||
| 80 | */ | ||
| 81 | @Deprecated | ||
| 82 | ObjectInput getInputStream() throws IOException; | ||
| 83 | |||
| 84 | |||
| 85 | /** | ||
| 86 | * Release the input stream. This would allow some transports to release | ||
| 87 | * the channel early. | ||
| 88 | * | ||
| 89 | * @exception java.io.IOException if an I/O error occurs. | ||
| 90 | * @since JDK1.1 | ||
| 91 | * @deprecated no replacement | ||
| 92 | */ | ||
| 93 | @Deprecated | ||
| 94 | void releaseInputStream() throws IOException; | ||
| 95 | |||
| 96 | /** | ||
| 97 | * Returns an output stream (may put out header information | ||
| 98 | * relating to the success of the call). Should only succeed | ||
| 99 | * once per remote call. | ||
| 100 | * | ||
| 101 | * @param success If true, indicates normal return, else indicates | ||
| 102 | * exceptional return. | ||
| 103 | * @return output stream for writing call result | ||
| 104 | * @exception java.io.IOException if an I/O error occurs. | ||
| 105 | * @exception java.io.StreamCorruptedException If already been called. | ||
| 106 | * @since JDK1.1 | ||
| 107 | * @deprecated no replacement | ||
| 108 | */ | ||
| 109 | @Deprecated | ||
| 110 | ObjectOutput getResultStream(boolean success) throws IOException, | ||
| 111 | StreamCorruptedException; | ||
| 112 | |||
| 113 | /** | ||
| 114 | * Do whatever it takes to execute the call. | ||
| 115 | * | ||
| 116 | * @exception java.lang.Exception if a general exception occurs. | ||
| 117 | * @since JDK1.1 | ||
| 118 | * @deprecated no replacement | ||
| 119 | */ | ||
| 120 | @Deprecated | ||
| 121 | void executeCall() throws Exception; | ||
| 122 | |||
| 123 | /** | ||
| 124 | * Allow cleanup after the remote call has completed. | ||
| 125 | * | ||
| 126 | * @exception java.io.IOException if an I/O error occurs. | ||
| 127 | * @since JDK1.1 | ||
| 128 | * @deprecated no replacement | ||
| 129 | */ | ||
| 130 | @Deprecated | ||
| 131 | void done() throws IOException; | ||
| 132 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2003, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.rmi.Remote; | ||
| 29 | import java.rmi.NoSuchObjectException; | ||
| 30 | import java.lang.reflect.Proxy; | ||
| 31 | import sun.rmi.server.Util; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * The <code>RemoteObject</code> class implements the | ||
| 35 | * <code>java.lang.Object</code> behavior for remote objects. | ||
| 36 | * <code>RemoteObject</code> provides the remote semantics of Object by | ||
| 37 | * implementing methods for hashCode, equals, and toString. | ||
| 38 | * | ||
| 39 | * @author Ann Wollrath | ||
| 40 | * @author Laird Dornin | ||
| 41 | * @author Peter Jones | ||
| 42 | * @since JDK1.1 | ||
| 43 | */ | ||
| 44 | public abstract class RemoteObject implements Remote, java.io.Serializable { | ||
| 45 | |||
| 46 | /** The object's remote reference. */ | ||
| 47 | transient protected RemoteRef ref; | ||
| 48 | |||
| 49 | /** indicate compatibility with JDK 1.1.x version of class */ | ||
| 50 | private static final long serialVersionUID = -3215090123894869218L; | ||
| 51 | |||
| 52 | /** | ||
| 53 | * Creates a remote object. | ||
| 54 | */ | ||
| 55 | protected RemoteObject() { | ||
| 56 | ref = null; | ||
| 57 | } | ||
| 58 | |||
| 59 | /** | ||
| 60 | * Creates a remote object, initialized with the specified remote | ||
| 61 | * reference. | ||
| 62 | * @param newref remote reference | ||
| 63 | */ | ||
| 64 | protected RemoteObject(RemoteRef newref) { | ||
| 65 | ref = newref; | ||
| 66 | } | ||
| 67 | |||
| 68 | /** | ||
| 69 | * Returns the remote reference for the remote object. | ||
| 70 | * | ||
| 71 | * <p>Note: The object returned from this method may be an instance of | ||
| 72 | * an implementation-specific class. The <code>RemoteObject</code> | ||
| 73 | * class ensures serialization portability of its instances' remote | ||
| 74 | * references through the behavior of its custom | ||
| 75 | * <code>writeObject</code> and <code>readObject</code> methods. An | ||
| 76 | * instance of <code>RemoteRef</code> should not be serialized outside | ||
| 77 | * of its <code>RemoteObject</code> wrapper instance or the result may | ||
| 78 | * be unportable. | ||
| 79 | * | ||
| 80 | * @return remote reference for the remote object | ||
| 81 | * @since 1.2 | ||
| 82 | */ | ||
| 83 | public RemoteRef getRef() { | ||
| 84 | return ref; | ||
| 85 | } | ||
| 86 | |||
| 87 | /** | ||
| 88 | * Returns the stub for the remote object <code>obj</code> passed | ||
| 89 | * as a parameter. This operation is only valid <i>after</i> | ||
| 90 | * the object has been exported. | ||
| 91 | * @param obj the remote object whose stub is needed | ||
| 92 | * @return the stub for the remote object, <code>obj</code>. | ||
| 93 | * @exception NoSuchObjectException if the stub for the | ||
| 94 | * remote object could not be found. | ||
| 95 | * @since 1.2 | ||
| 96 | */ | ||
| 97 | public static Remote toStub(Remote obj) throws NoSuchObjectException { | ||
| 98 | if (obj instanceof RemoteStub || | ||
| 99 | (obj != null && | ||
| 100 | Proxy.isProxyClass(obj.getClass()) && | ||
| 101 | Proxy.getInvocationHandler(obj) instanceof | ||
| 102 | RemoteObjectInvocationHandler)) | ||
| 103 | { | ||
| 104 | return obj; | ||
| 105 | } else { | ||
| 106 | return sun.rmi.transport.ObjectTable.getStub(obj); | ||
| 107 | } | ||
| 108 | } | ||
| 109 | |||
| 110 | /** | ||
| 111 | * Returns a hashcode for a remote object. Two remote object stubs | ||
| 112 | * that refer to the same remote object will have the same hash code | ||
| 113 | * (in order to support remote objects as keys in hash tables). | ||
| 114 | * | ||
| 115 | * @see java.util.Hashtable | ||
| 116 | */ | ||
| 117 | public int hashCode() { | ||
| 118 | return (ref == null) ? super.hashCode() : ref.remoteHashCode(); | ||
| 119 | } | ||
| 120 | |||
| 121 | /** | ||
| 122 | * Compares two remote objects for equality. | ||
| 123 | * Returns a boolean that indicates whether this remote object is | ||
| 124 | * equivalent to the specified Object. This method is used when a | ||
| 125 | * remote object is stored in a hashtable. | ||
| 126 | * If the specified Object is not itself an instance of RemoteObject, | ||
| 127 | * then this method delegates by returning the result of invoking the | ||
| 128 | * <code>equals</code> method of its parameter with this remote object | ||
| 129 | * as the argument. | ||
| 130 | * @param obj the Object to compare with | ||
| 131 | * @return true if these Objects are equal; false otherwise. | ||
| 132 | * @see java.util.Hashtable | ||
| 133 | */ | ||
| 134 | public boolean equals(Object obj) { | ||
| 135 | if (obj instanceof RemoteObject) { | ||
| 136 | if (ref == null) { | ||
| 137 | return obj == this; | ||
| 138 | } else { | ||
| 139 | return ref.remoteEquals(((RemoteObject)obj).ref); | ||
| 140 | } | ||
| 141 | } else if (obj != null) { | ||
| 142 | /* | ||
| 143 | * Fix for 4099660: if object is not an instance of RemoteObject, | ||
| 144 | * use the result of its equals method, to support symmetry is a | ||
| 145 | * remote object implementation class that does not extend | ||
| 146 | * RemoteObject wishes to support equality with its stub objects. | ||
| 147 | */ | ||
| 148 | return obj.equals(this); | ||
| 149 | } else { | ||
| 150 | return false; | ||
| 151 | } | ||
| 152 | } | ||
| 153 | |||
| 154 | /** | ||
| 155 | * Returns a String that represents the value of this remote object. | ||
| 156 | */ | ||
| 157 | public String toString() { | ||
| 158 | String classname = Util.getUnqualifiedName(getClass()); | ||
| 159 | return (ref == null) ? classname : | ||
| 160 | classname + "[" + ref.remoteToString() + "]"; | ||
| 161 | } | ||
| 162 | |||
| 163 | /** | ||
| 164 | * <code>writeObject</code> for custom serialization. | ||
| 165 | * | ||
| 166 | * <p>This method writes this object's serialized form for this class | ||
| 167 | * as follows: | ||
| 168 | * | ||
| 169 | * <p>The {@link RemoteRef#getRefClass(java.io.ObjectOutput) getRefClass} | ||
| 170 | * method is invoked on this object's <code>ref</code> field | ||
| 171 | * to obtain its external ref type name. | ||
| 172 | * If the value returned by <code>getRefClass</code> was | ||
| 173 | * a non-<code>null</code> string of length greater than zero, | ||
| 174 | * the <code>writeUTF</code> method is invoked on <code>out</code> | ||
| 175 | * with the value returned by <code>getRefClass</code>, and then | ||
| 176 | * the <code>writeExternal</code> method is invoked on | ||
| 177 | * this object's <code>ref</code> field passing <code>out</code> | ||
| 178 | * as the argument; otherwise, | ||
| 179 | * the <code>writeUTF</code> method is invoked on <code>out</code> | ||
| 180 | * with a zero-length string (<code>""</code>), and then | ||
| 181 | * the <code>writeObject</code> method is invoked on <code>out</code> | ||
| 182 | * passing this object's <code>ref</code> field as the argument. | ||
| 183 | * | ||
| 184 | * @serialData | ||
| 185 | * | ||
| 186 | * The serialized data for this class comprises a string (written with | ||
| 187 | * <code>ObjectOutput.writeUTF</code>) that is either the external | ||
| 188 | * ref type name of the contained <code>RemoteRef</code> instance | ||
| 189 | * (the <code>ref</code> field) or a zero-length string, followed by | ||
| 190 | * either the external form of the <code>ref</code> field as written by | ||
| 191 | * its <code>writeExternal</code> method if the string was of non-zero | ||
| 192 | * length, or the serialized form of the <code>ref</code> field as | ||
| 193 | * written by passing it to the serialization stream's | ||
| 194 | * <code>writeObject</code> if the string was of zero length. | ||
| 195 | * | ||
| 196 | * <p>If this object is an instance of | ||
| 197 | * {@link RemoteStub} or {@link RemoteObjectInvocationHandler} | ||
| 198 | * that was returned from any of | ||
| 199 | * the <code>UnicastRemoteObject.exportObject</code> methods | ||
| 200 | * and custom socket factories are not used, | ||
| 201 | * the external ref type name is <code>"UnicastRef"</code>. | ||
| 202 | * | ||
| 203 | * If this object is an instance of | ||
| 204 | * <code>RemoteStub</code> or <code>RemoteObjectInvocationHandler</code> | ||
| 205 | * that was returned from any of | ||
| 206 | * the <code>UnicastRemoteObject.exportObject</code> methods | ||
| 207 | * and custom socket factories are used, | ||
| 208 | * the external ref type name is <code>"UnicastRef2"</code>. | ||
| 209 | * | ||
| 210 | * If this object is an instance of | ||
| 211 | * <code>RemoteStub</code> or <code>RemoteObjectInvocationHandler</code> | ||
| 212 | * that was returned from any of | ||
| 213 | * the <code>java.rmi.activation.Activatable.exportObject</code> methods, | ||
| 214 | * the external ref type name is <code>"ActivatableRef"</code>. | ||
| 215 | * | ||
| 216 | * If this object is an instance of | ||
| 217 | * <code>RemoteStub</code> or <code>RemoteObjectInvocationHandler</code> | ||
| 218 | * that was returned from | ||
| 219 | * the <code>RemoteObject.toStub</code> method (and the argument passed | ||
| 220 | * to <code>toStub</code> was not itself a <code>RemoteStub</code>), | ||
| 221 | * the external ref type name is a function of how the remote object | ||
| 222 | * passed to <code>toStub</code> was exported, as described above. | ||
| 223 | * | ||
| 224 | * If this object is an instance of | ||
| 225 | * <code>RemoteStub</code> or <code>RemoteObjectInvocationHandler</code> | ||
| 226 | * that was originally created via deserialization, | ||
| 227 | * the external ref type name is the same as that which was read | ||
| 228 | * when this object was deserialized. | ||
| 229 | * | ||
| 230 | * <p>If this object is an instance of | ||
| 231 | * <code>java.rmi.server.UnicastRemoteObject</code> that does not | ||
| 232 | * use custom socket factories, | ||
| 233 | * the external ref type name is <code>"UnicastServerRef"</code>. | ||
| 234 | * | ||
| 235 | * If this object is an instance of | ||
| 236 | * <code>UnicastRemoteObject</code> that does | ||
| 237 | * use custom socket factories, | ||
| 238 | * the external ref type name is <code>"UnicastServerRef2"</code>. | ||
| 239 | * | ||
| 240 | * <p>Following is the data that must be written by the | ||
| 241 | * <code>writeExternal</code> method and read by the | ||
| 242 | * <code>readExternal</code> method of <code>RemoteRef</code> | ||
| 243 | * implementation classes that correspond to the each of the | ||
| 244 | * defined external ref type names: | ||
| 245 | * | ||
| 246 | * <p>For <code>"UnicastRef"</code>: | ||
| 247 | * | ||
| 248 | * <ul> | ||
| 249 | * | ||
| 250 | * <li>the hostname of the referenced remote object, | ||
| 251 | * written by {@link java.io.ObjectOutput#writeUTF(String)} | ||
| 252 | * | ||
| 253 | * <li>the port of the referenced remote object, | ||
| 254 | * written by {@link java.io.ObjectOutput#writeInt(int)} | ||
| 255 | * | ||
| 256 | * <li>the data written as a result of calling | ||
| 257 | * {link java.rmi.server.ObjID#write(java.io.ObjectOutput)} | ||
| 258 | * on the <code>ObjID</code> instance contained in the reference | ||
| 259 | * | ||
| 260 | * <li>the boolean value <code>false</code>, | ||
| 261 | * written by {@link java.io.ObjectOutput#writeBoolean(boolean)} | ||
| 262 | * | ||
| 263 | * </ul> | ||
| 264 | * | ||
| 265 | * <p>For <code>"UnicastRef2"</code> with a | ||
| 266 | * <code>null</code> client socket factory: | ||
| 267 | * | ||
| 268 | * <ul> | ||
| 269 | * | ||
| 270 | * <li>the byte value <code>0x00</code> | ||
| 271 | * (indicating <code>null</code> client socket factory), | ||
| 272 | * written by {@link java.io.ObjectOutput#writeByte(int)} | ||
| 273 | * | ||
| 274 | * <li>the hostname of the referenced remote object, | ||
| 275 | * written by {@link java.io.ObjectOutput#writeUTF(String)} | ||
| 276 | * | ||
| 277 | * <li>the port of the referenced remote object, | ||
| 278 | * written by {@link java.io.ObjectOutput#writeInt(int)} | ||
| 279 | * | ||
| 280 | * <li>the data written as a result of calling | ||
| 281 | * {link java.rmi.server.ObjID#write(java.io.ObjectOutput)} | ||
| 282 | * on the <code>ObjID</code> instance contained in the reference | ||
| 283 | * | ||
| 284 | * <li>the boolean value <code>false</code>, | ||
| 285 | * written by {@link java.io.ObjectOutput#writeBoolean(boolean)} | ||
| 286 | * | ||
| 287 | * </ul> | ||
| 288 | * | ||
| 289 | * <p>For <code>"UnicastRef2"</code> with a | ||
| 290 | * non-<code>null</code> client socket factory: | ||
| 291 | * | ||
| 292 | * <ul> | ||
| 293 | * | ||
| 294 | * <li>the byte value <code>0x01</code> | ||
| 295 | * (indicating non-<code>null</code> client socket factory), | ||
| 296 | * written by {@link java.io.ObjectOutput#writeByte(int)} | ||
| 297 | * | ||
| 298 | * <li>the hostname of the referenced remote object, | ||
| 299 | * written by {@link java.io.ObjectOutput#writeUTF(String)} | ||
| 300 | * | ||
| 301 | * <li>the port of the referenced remote object, | ||
| 302 | * written by {@link java.io.ObjectOutput#writeInt(int)} | ||
| 303 | * | ||
| 304 | * <li>a client socket factory (object of type | ||
| 305 | * <code>java.rmi.server.RMIClientSocketFactory</code>), | ||
| 306 | * written by passing it to an invocation of | ||
| 307 | * <code>writeObject</code> on the stream instance | ||
| 308 | * | ||
| 309 | * <li>the data written as a result of calling | ||
| 310 | * {link java.rmi.server.ObjID#write(java.io.ObjectOutput)} | ||
| 311 | * on the <code>ObjID</code> instance contained in the reference | ||
| 312 | * | ||
| 313 | * <li>the boolean value <code>false</code>, | ||
| 314 | * written by {@link java.io.ObjectOutput#writeBoolean(boolean)} | ||
| 315 | * | ||
| 316 | * </ul> | ||
| 317 | * | ||
| 318 | * <p>For <code>"ActivatableRef"</code> with a | ||
| 319 | * <code>null</code> nested remote reference: | ||
| 320 | * | ||
| 321 | * <ul> | ||
| 322 | * | ||
| 323 | * <li>an instance of | ||
| 324 | * <code>java.rmi.activation.ActivationID</code>, | ||
| 325 | * written by passing it to an invocation of | ||
| 326 | * <code>writeObject</code> on the stream instance | ||
| 327 | * | ||
| 328 | * <li>a zero-length string (<code>""</code>), | ||
| 329 | * written by {@link java.io.ObjectOutput#writeUTF(String)} | ||
| 330 | * | ||
| 331 | * </ul> | ||
| 332 | * | ||
| 333 | * <p>For <code>"ActivatableRef"</code> with a | ||
| 334 | * non-<code>null</code> nested remote reference: | ||
| 335 | * | ||
| 336 | * <ul> | ||
| 337 | * | ||
| 338 | * <li>an instance of | ||
| 339 | * <code>java.rmi.activation.ActivationID</code>, | ||
| 340 | * written by passing it to an invocation of | ||
| 341 | * <code>writeObject</code> on the stream instance | ||
| 342 | * | ||
| 343 | * <li>the external ref type name of the nested remote reference, | ||
| 344 | * which must be <code>"UnicastRef2"</code>, | ||
| 345 | * written by {@link java.io.ObjectOutput#writeUTF(String)} | ||
| 346 | * | ||
| 347 | * <li>the external form of the nested remote reference, | ||
| 348 | * written by invoking its <code>writeExternal</code> method | ||
| 349 | * with the stream instance | ||
| 350 | * (see the description of the external form for | ||
| 351 | * <code>"UnicastRef2"</code> above) | ||
| 352 | * | ||
| 353 | * </ul> | ||
| 354 | * | ||
| 355 | * <p>For <code>"UnicastServerRef"</code> and | ||
| 356 | * <code>"UnicastServerRef2"</code>, no data is written by the | ||
| 357 | * <code>writeExternal</code> method or read by the | ||
| 358 | * <code>readExternal</code> method. | ||
| 359 | */ | ||
| 360 | private void writeObject(java.io.ObjectOutputStream out) | ||
| 361 | throws java.io.IOException, java.lang.ClassNotFoundException | ||
| 362 | { | ||
| 363 | if (ref == null) { | ||
| 364 | throw new java.rmi.MarshalException("Invalid remote object"); | ||
| 365 | } else { | ||
| 366 | String refClassName = ref.getRefClass(out); | ||
| 367 | if (refClassName == null || refClassName.length() == 0) { | ||
| 368 | /* | ||
| 369 | * No reference class name specified, so serialize | ||
| 370 | * remote reference. | ||
| 371 | */ | ||
| 372 | out.writeUTF(""); | ||
| 373 | out.writeObject(ref); | ||
| 374 | } else { | ||
| 375 | /* | ||
| 376 | * Built-in reference class specified, so delegate | ||
| 377 | * to reference to write out its external form. | ||
| 378 | */ | ||
| 379 | out.writeUTF(refClassName); | ||
| 380 | ref.writeExternal(out); | ||
| 381 | } | ||
| 382 | } | ||
| 383 | } | ||
| 384 | |||
| 385 | /** | ||
| 386 | * <code>readObject</code> for custom serialization. | ||
| 387 | * | ||
| 388 | * <p>This method reads this object's serialized form for this class | ||
| 389 | * as follows: | ||
| 390 | * | ||
| 391 | * <p>The <code>readUTF</code> method is invoked on <code>in</code> | ||
| 392 | * to read the external ref type name for the <code>RemoteRef</code> | ||
| 393 | * instance to be filled in to this object's <code>ref</code> field. | ||
| 394 | * If the string returned by <code>readUTF</code> has length zero, | ||
| 395 | * the <code>readObject</code> method is invoked on <code>in</code>, | ||
| 396 | * and than the value returned by <code>readObject</code> is cast to | ||
| 397 | * <code>RemoteRef</code> and this object's <code>ref</code> field is | ||
| 398 | * set to that value. | ||
| 399 | * Otherwise, this object's <code>ref</code> field is set to a | ||
| 400 | * <code>RemoteRef</code> instance that is created of an | ||
| 401 | * implementation-specific class corresponding to the external ref | ||
| 402 | * type name returned by <code>readUTF</code>, and then | ||
| 403 | * the <code>readExternal</code> method is invoked on | ||
| 404 | * this object's <code>ref</code> field. | ||
| 405 | * | ||
| 406 | * <p>If the external ref type name is | ||
| 407 | * <code>"UnicastRef"</code>, <code>"UnicastServerRef"</code>, | ||
| 408 | * <code>"UnicastRef2"</code>, <code>"UnicastServerRef2"</code>, | ||
| 409 | * or <code>"ActivatableRef"</code>, a corresponding | ||
| 410 | * implementation-specific class must be found, and its | ||
| 411 | * <code>readExternal</code> method must read the serial data | ||
| 412 | * for that external ref type name as specified to be written | ||
| 413 | * in the <b>serialData</b> documentation for this class. | ||
| 414 | * If the external ref type name is any other string (of non-zero | ||
| 415 | * length), a <code>ClassNotFoundException</code> will be thrown, | ||
| 416 | * unless the implementation provides an implementation-specific | ||
| 417 | * class corresponding to that external ref type name, in which | ||
| 418 | * case this object's <code>ref</code> field will be set to an | ||
| 419 | * instance of that implementation-specific class. | ||
| 420 | */ | ||
| 421 | private void readObject(java.io.ObjectInputStream in) | ||
| 422 | throws java.io.IOException, java.lang.ClassNotFoundException | ||
| 423 | { | ||
| 424 | String refClassName = in.readUTF(); | ||
| 425 | if (refClassName == null || refClassName.length() == 0) { | ||
| 426 | /* | ||
| 427 | * No reference class name specified, so construct | ||
| 428 | * remote reference from its serialized form. | ||
| 429 | */ | ||
| 430 | ref = (RemoteRef) in.readObject(); | ||
| 431 | } else { | ||
| 432 | /* | ||
| 433 | * Built-in reference class specified, so delegate to | ||
| 434 | * internal reference class to initialize its fields from | ||
| 435 | * its external form. | ||
| 436 | */ | ||
| 437 | String internalRefClassName = | ||
| 438 | RemoteRef.packagePrefix + "." + refClassName; | ||
| 439 | Class refClass = Class.forName(internalRefClassName); | ||
| 440 | try { | ||
| 441 | ref = (RemoteRef) refClass.newInstance(); | ||
| 442 | |||
| 443 | /* | ||
| 444 | * If this step fails, assume we found an internal | ||
| 445 | * class that is not meant to be a serializable ref | ||
| 446 | * type. | ||
| 447 | */ | ||
| 448 | } catch (InstantiationException e) { | ||
| 449 | throw new ClassNotFoundException(internalRefClassName, e); | ||
| 450 | } catch (IllegalAccessException e) { | ||
| 451 | throw new ClassNotFoundException(internalRefClassName, e); | ||
| 452 | } catch (ClassCastException e) { | ||
| 453 | throw new ClassNotFoundException(internalRefClassName, e); | ||
| 454 | } | ||
| 455 | ref.readExternal(in); | ||
| 456 | } | ||
| 457 | } | ||
| 458 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.io.InvalidObjectException; | ||
| 28 | import java.lang.reflect.InvocationHandler; | ||
| 29 | import java.lang.reflect.Method; | ||
| 30 | import java.lang.reflect.Proxy; | ||
| 31 | import java.rmi.Remote; | ||
| 32 | import java.rmi.UnexpectedException; | ||
| 33 | import java.rmi.activation.Activatable; | ||
| 34 | import java.util.Map; | ||
| 35 | import java.util.WeakHashMap; | ||
| 36 | import sun.rmi.server.Util; | ||
| 37 | import sun.rmi.server.WeakClassHashMap; | ||
| 38 | |||
| 39 | /** | ||
| 40 | * An implementation of the <code>InvocationHandler</code> interface for | ||
| 41 | * use with Java Remote Method Invocation (Java RMI). This invocation | ||
| 42 | * handler can be used in conjunction with a dynamic proxy instance as a | ||
| 43 | * replacement for a pregenerated stub class. | ||
| 44 | * | ||
| 45 | * <p>Applications are not expected to use this class directly. A remote | ||
| 46 | * object exported to use a dynamic proxy with {@link UnicastRemoteObject} | ||
| 47 | * or {@link Activatable} has an instance of this class as that proxy's | ||
| 48 | * invocation handler. | ||
| 49 | * | ||
| 50 | * @author Ann Wollrath | ||
| 51 | * @since 1.5 | ||
| 52 | **/ | ||
| 53 | public class RemoteObjectInvocationHandler | ||
| 54 | extends RemoteObject | ||
| 55 | implements InvocationHandler | ||
| 56 | { | ||
| 57 | private static final long serialVersionUID = 2L; | ||
| 58 | |||
| 59 | /** | ||
| 60 | * A weak hash map, mapping classes to weak hash maps that map | ||
| 61 | * method objects to method hashes. | ||
| 62 | **/ | ||
| 63 | private static final MethodToHash_Maps methodToHash_Maps = | ||
| 64 | new MethodToHash_Maps(); | ||
| 65 | |||
| 66 | /** | ||
| 67 | * Creates a new <code>RemoteObjectInvocationHandler</code> constructed | ||
| 68 | * with the specified <code>RemoteRef</code>. | ||
| 69 | * | ||
| 70 | * @param ref the remote ref | ||
| 71 | * | ||
| 72 | * @throws NullPointerException if <code>ref</code> is <code>null</code> | ||
| 73 | **/ | ||
| 74 | public RemoteObjectInvocationHandler(RemoteRef ref) { | ||
| 75 | super(ref); | ||
| 76 | if (ref == null) { | ||
| 77 | throw new NullPointerException(); | ||
| 78 | } | ||
| 79 | } | ||
| 80 | |||
| 81 | /** | ||
| 82 | * Processes a method invocation made on the encapsulating | ||
| 83 | * proxy instance, <code>proxy</code>, and returns the result. | ||
| 84 | * | ||
| 85 | * <p><code>RemoteObjectInvocationHandler</code> implements this method | ||
| 86 | * as follows: | ||
| 87 | * | ||
| 88 | * <p>If <code>method</code> is one of the following methods, it | ||
| 89 | * is processed as described below: | ||
| 90 | * | ||
| 91 | * <ul> | ||
| 92 | * | ||
| 93 | * <li>{@link Object#hashCode Object.hashCode}: Returns the hash | ||
| 94 | * code value for the proxy. | ||
| 95 | * | ||
| 96 | * <li>{@link Object#equals Object.equals}: Returns <code>true</code> | ||
| 97 | * if the argument (<code>args[0]</code>) is an instance of a dynamic | ||
| 98 | * proxy class and this invocation handler is equal to the invocation | ||
| 99 | * handler of that argument, and returns <code>false</code> otherwise. | ||
| 100 | * | ||
| 101 | * <li>{@link Object#toString Object.toString}: Returns a string | ||
| 102 | * representation of the proxy. | ||
| 103 | * </ul> | ||
| 104 | * | ||
| 105 | * <p>Otherwise, a remote call is made as follows: | ||
| 106 | * | ||
| 107 | * <ul> | ||
| 108 | * <li>If <code>proxy</code> is not an instance of the interface | ||
| 109 | * {@link Remote}, then an {@link IllegalArgumentException} is thrown. | ||
| 110 | * | ||
| 111 | * <li>Otherwise, the {@link RemoteRef#invoke invoke} method is invoked | ||
| 112 | * on this invocation handler's <code>RemoteRef</code>, passing | ||
| 113 | * <code>proxy</code>, <code>method</code>, <code>args</code>, and the | ||
| 114 | * method hash (defined in section 8.3 of the "Java Remote Method | ||
| 115 | * Invocation (RMI) Specification") for <code>method</code>, and the | ||
| 116 | * result is returned. | ||
| 117 | * | ||
| 118 | * <li>If an exception is thrown by <code>RemoteRef.invoke</code> and | ||
| 119 | * that exception is a checked exception that is not assignable to any | ||
| 120 | * exception in the <code>throws</code> clause of the method | ||
| 121 | * implemented by the <code>proxy</code>'s class, then that exception | ||
| 122 | * is wrapped in an {@link UnexpectedException} and the wrapped | ||
| 123 | * exception is thrown. Otherwise, the exception thrown by | ||
| 124 | * <code>invoke</code> is thrown by this method. | ||
| 125 | * </ul> | ||
| 126 | * | ||
| 127 | * <p>The semantics of this method are unspecified if the | ||
| 128 | * arguments could not have been produced by an instance of some | ||
| 129 | * valid dynamic proxy class containing this invocation handler. | ||
| 130 | * | ||
| 131 | * @param proxy the proxy instance that the method was invoked on | ||
| 132 | * @param method the <code>Method</code> instance corresponding to the | ||
| 133 | * interface method invoked on the proxy instance | ||
| 134 | * @param args an array of objects containing the values of the | ||
| 135 | * arguments passed in the method invocation on the proxy instance, or | ||
| 136 | * <code>null</code> if the method takes no arguments | ||
| 137 | * @return the value to return from the method invocation on the proxy | ||
| 138 | * instance | ||
| 139 | * @throws Throwable the exception to throw from the method invocation | ||
| 140 | * on the proxy instance | ||
| 141 | **/ | ||
| 142 | public Object invoke(Object proxy, Method method, Object[] args) | ||
| 143 | throws Throwable | ||
| 144 | { | ||
| 145 | if (method.getDeclaringClass() == Object.class) { | ||
| 146 | return invokeObjectMethod(proxy, method, args); | ||
| 147 | } else { | ||
| 148 | return invokeRemoteMethod(proxy, method, args); | ||
| 149 | } | ||
| 150 | } | ||
| 151 | |||
| 152 | /** | ||
| 153 | * Handles java.lang.Object methods. | ||
| 154 | **/ | ||
| 155 | private Object invokeObjectMethod(Object proxy, | ||
| 156 | Method method, | ||
| 157 | Object[] args) | ||
| 158 | { | ||
| 159 | String name = method.getName(); | ||
| 160 | |||
| 161 | if (name.equals("hashCode")) { | ||
| 162 | return hashCode(); | ||
| 163 | |||
| 164 | } else if (name.equals("equals")) { | ||
| 165 | Object obj = args[0]; | ||
| 166 | return | ||
| 167 | proxy == obj || | ||
| 168 | (obj != null && | ||
| 169 | Proxy.isProxyClass(obj.getClass()) && | ||
| 170 | equals(Proxy.getInvocationHandler(obj))); | ||
| 171 | |||
| 172 | } else if (name.equals("toString")) { | ||
| 173 | return proxyToString(proxy); | ||
| 174 | |||
| 175 | } else { | ||
| 176 | throw new IllegalArgumentException( | ||
| 177 | "unexpected Object method: " + method); | ||
| 178 | } | ||
| 179 | } | ||
| 180 | |||
| 181 | /** | ||
| 182 | * Handles remote methods. | ||
| 183 | **/ | ||
| 184 | private Object invokeRemoteMethod(Object proxy, | ||
| 185 | Method method, | ||
| 186 | Object[] args) | ||
| 187 | throws Exception | ||
| 188 | { | ||
| 189 | try { | ||
| 190 | if (!(proxy instanceof Remote)) { | ||
| 191 | throw new IllegalArgumentException( | ||
| 192 | "proxy not Remote instance"); | ||
| 193 | } | ||
| 194 | return ref.invoke((Remote) proxy, method, args, | ||
| 195 | getMethodHash(method)); | ||
| 196 | } catch (Exception e) { | ||
| 197 | if (!(e instanceof RuntimeException)) { | ||
| 198 | Class<?> cl = proxy.getClass(); | ||
| 199 | try { | ||
| 200 | method = cl.getMethod(method.getName(), | ||
| 201 | method.getParameterTypes()); | ||
| 202 | } catch (NoSuchMethodException nsme) { | ||
| 203 | throw (IllegalArgumentException) | ||
| 204 | new IllegalArgumentException().initCause(nsme); | ||
| 205 | } | ||
| 206 | Class<?> thrownType = e.getClass(); | ||
| 207 | for (Class<?> declaredType : method.getExceptionTypes()) { | ||
| 208 | if (declaredType.isAssignableFrom(thrownType)) { | ||
| 209 | throw e; | ||
| 210 | } | ||
| 211 | } | ||
| 212 | e = new UnexpectedException("unexpected exception", e); | ||
| 213 | } | ||
| 214 | throw e; | ||
| 215 | } | ||
| 216 | } | ||
| 217 | |||
| 218 | /** | ||
| 219 | * Returns a string representation for a proxy that uses this invocation | ||
| 220 | * handler. | ||
| 221 | **/ | ||
| 222 | private String proxyToString(Object proxy) { | ||
| 223 | Class<?>[] interfaces = proxy.getClass().getInterfaces(); | ||
| 224 | if (interfaces.length == 0) { | ||
| 225 | return "Proxy[" + this + "]"; | ||
| 226 | } | ||
| 227 | String iface = interfaces[0].getName(); | ||
| 228 | if (iface.equals("java.rmi.Remote") && interfaces.length > 1) { | ||
| 229 | iface = interfaces[1].getName(); | ||
| 230 | } | ||
| 231 | int dot = iface.lastIndexOf('.'); | ||
| 232 | if (dot >= 0) { | ||
| 233 | iface = iface.substring(dot + 1); | ||
| 234 | } | ||
| 235 | return "Proxy[" + iface + "," + this + "]"; | ||
| 236 | } | ||
| 237 | |||
| 238 | /** | ||
| 239 | * @throws InvalidObjectException unconditionally | ||
| 240 | **/ | ||
| 241 | private void readObjectNoData() throws InvalidObjectException { | ||
| 242 | throw new InvalidObjectException("no data in stream; class: " + | ||
| 243 | this.getClass().getName()); | ||
| 244 | } | ||
| 245 | |||
| 246 | /** | ||
| 247 | * Returns the method hash for the specified method. Subsequent calls | ||
| 248 | * to "getMethodHash" passing the same method argument should be faster | ||
| 249 | * since this method caches internally the result of the method to | ||
| 250 | * method hash mapping. The method hash is calculated using the | ||
| 251 | * "computeMethodHash" method. | ||
| 252 | * | ||
| 253 | * @param method the remote method | ||
| 254 | * @return the method hash for the specified method | ||
| 255 | */ | ||
| 256 | private static long getMethodHash(Method method) { | ||
| 257 | return methodToHash_Maps.get(method.getDeclaringClass()).get(method); | ||
| 258 | } | ||
| 259 | |||
| 260 | /** | ||
| 261 | * A weak hash map, mapping classes to weak hash maps that map | ||
| 262 | * method objects to method hashes. | ||
| 263 | **/ | ||
| 264 | private static class MethodToHash_Maps | ||
| 265 | extends WeakClassHashMap<Map<Method,Long>> | ||
| 266 | { | ||
| 267 | MethodToHash_Maps() {} | ||
| 268 | |||
| 269 | protected Map<Method,Long> computeValue(Class<?> remoteClass) { | ||
| 270 | return new WeakHashMap<Method,Long>() { | ||
| 271 | public synchronized Long get(Object key) { | ||
| 272 | Long hash = super.get(key); | ||
| 273 | if (hash == null) { | ||
| 274 | Method method = (Method) key; | ||
| 275 | hash = Util.computeMethodHash(method); | ||
| 276 | put(method, hash); | ||
| 277 | } | ||
| 278 | return hash; | ||
| 279 | } | ||
| 280 | }; | ||
| 281 | } | ||
| 282 | } | ||
| 283 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.rmi.*; | ||
| 29 | |||
| 30 | /** | ||
| 31 | * <code>RemoteRef</code> represents the handle for a remote object. A | ||
| 32 | * <code>RemoteStub</code> uses a remote reference to carry out a | ||
| 33 | * remote method invocation to a remote object. | ||
| 34 | * | ||
| 35 | * @author Ann Wollrath | ||
| 36 | * @since JDK1.1 | ||
| 37 | * @see java.rmi.server.RemoteStub | ||
| 38 | */ | ||
| 39 | public interface RemoteRef extends java.io.Externalizable { | ||
| 40 | |||
| 41 | /** indicate compatibility with JDK 1.1.x version of class. */ | ||
| 42 | static final long serialVersionUID = 3632638527362204081L; | ||
| 43 | |||
| 44 | /** | ||
| 45 | * Initialize the server package prefix: assumes that the | ||
| 46 | * implementation of server ref classes (e.g., UnicastRef, | ||
| 47 | * UnicastServerRef) are located in the package defined by the | ||
| 48 | * prefix. | ||
| 49 | */ | ||
| 50 | final static String packagePrefix = "sun.rmi.server"; | ||
| 51 | |||
| 52 | /** | ||
| 53 | * Invoke a method. This form of delegating method invocation | ||
| 54 | * to the reference allows the reference to take care of | ||
| 55 | * setting up the connection to the remote host, marshaling | ||
| 56 | * some representation for the method and parameters, then | ||
| 57 | * communicating the method invocation to the remote host. | ||
| 58 | * This method either returns the result of a method invocation | ||
| 59 | * on the remote object which resides on the remote host or | ||
| 60 | * throws a RemoteException if the call failed or an | ||
| 61 | * application-level exception if the remote invocation throws | ||
| 62 | * an exception. | ||
| 63 | * | ||
| 64 | * @param obj the object that contains the RemoteRef (e.g., the | ||
| 65 | * RemoteStub for the object. | ||
| 66 | * @param method the method to be invoked | ||
| 67 | * @param params the parameter list | ||
| 68 | * @param opnum a hash that may be used to represent the method | ||
| 69 | * @return result of remote method invocation | ||
| 70 | * @exception Exception if any exception occurs during remote method | ||
| 71 | * invocation | ||
| 72 | * @since 1.2 | ||
| 73 | */ | ||
| 74 | Object invoke(Remote obj, | ||
| 75 | java.lang.reflect.Method method, | ||
| 76 | Object[] params, | ||
| 77 | long opnum) | ||
| 78 | throws Exception; | ||
| 79 | |||
| 80 | /** | ||
| 81 | * Creates an appropriate call object for a new remote method | ||
| 82 | * invocation on this object. Passing operation array and index, | ||
| 83 | * allows the stubs generator to assign the operation indexes and | ||
| 84 | * interpret them. The remote reference may need the operation to | ||
| 85 | * encode in the call. | ||
| 86 | * | ||
| 87 | * @since JDK1.1 | ||
| 88 | * @deprecated 1.2 style stubs no longer use this method. Instead of | ||
| 89 | * using a sequence of method calls on the stub's the remote reference | ||
| 90 | * (<code>newCall</code>, <code>invoke</code>, and <code>done</code>), a | ||
| 91 | * stub uses a single method, <code>invoke(Remote, Method, Object[], | ||
| 92 | * int)</code>, on the remote reference to carry out parameter | ||
| 93 | * marshalling, remote method executing and unmarshalling of the return | ||
| 94 | * value. | ||
| 95 | * | ||
| 96 | * @param obj remote stub through which to make call | ||
| 97 | * @param op array of stub operations | ||
| 98 | * @param opnum operation number | ||
| 99 | * @param hash stub/skeleton interface hash | ||
| 100 | * @return call object representing remote call | ||
| 101 | * @throws RemoteException if failed to initiate new remote call | ||
| 102 | * @see #invoke(Remote,java.lang.reflect.Method,Object[],long) | ||
| 103 | */ | ||
| 104 | @Deprecated | ||
| 105 | RemoteCall newCall(RemoteObject obj, Operation[] op, int opnum, long hash) | ||
| 106 | throws RemoteException; | ||
| 107 | |||
| 108 | /** | ||
| 109 | * Executes the remote call. | ||
| 110 | * | ||
| 111 | * Invoke will raise any "user" exceptions which | ||
| 112 | * should pass through and not be caught by the stub. If any | ||
| 113 | * exception is raised during the remote invocation, invoke should | ||
| 114 | * take care of cleaning up the connection before raising the | ||
| 115 | * "user" or remote exception. | ||
| 116 | * | ||
| 117 | * @since JDK1.1 | ||
| 118 | * @deprecated 1.2 style stubs no longer use this method. Instead of | ||
| 119 | * using a sequence of method calls to the remote reference | ||
| 120 | * (<code>newCall</code>, <code>invoke</code>, and <code>done</code>), a | ||
| 121 | * stub uses a single method, <code>invoke(Remote, Method, Object[], | ||
| 122 | * int)</code>, on the remote reference to carry out parameter | ||
| 123 | * marshalling, remote method executing and unmarshalling of the return | ||
| 124 | * value. | ||
| 125 | * | ||
| 126 | * @param call object representing remote call | ||
| 127 | * @throws Exception if any exception occurs during remote method | ||
| 128 | * @see #invoke(Remote,java.lang.reflect.Method,Object[],long) | ||
| 129 | */ | ||
| 130 | @Deprecated | ||
| 131 | void invoke(RemoteCall call) throws Exception; | ||
| 132 | |||
| 133 | /** | ||
| 134 | * Allows the remote reference to clean up (or reuse) the connection. | ||
| 135 | * Done should only be called if the invoke returns successfully | ||
| 136 | * (non-exceptionally) to the stub. | ||
| 137 | * | ||
| 138 | * @since JDK1.1 | ||
| 139 | * @deprecated 1.2 style stubs no longer use this method. Instead of | ||
| 140 | * using a sequence of method calls to the remote reference | ||
| 141 | * (<code>newCall</code>, <code>invoke</code>, and <code>done</code>), a | ||
| 142 | * stub uses a single method, <code>invoke(Remote, Method, Object[], | ||
| 143 | * int)</code>, on the remote reference to carry out parameter | ||
| 144 | * marshalling, remote method executing and unmarshalling of the return | ||
| 145 | * value. | ||
| 146 | * | ||
| 147 | * @param call object representing remote call | ||
| 148 | * @throws RemoteException if remote error occurs during call cleanup | ||
| 149 | * @see #invoke(Remote,java.lang.reflect.Method,Object[],long) | ||
| 150 | */ | ||
| 151 | @Deprecated | ||
| 152 | void done(RemoteCall call) throws RemoteException; | ||
| 153 | |||
| 154 | /** | ||
| 155 | * Returns the class name of the ref type to be serialized onto | ||
| 156 | * the stream 'out'. | ||
| 157 | * @param out the output stream to which the reference will be serialized | ||
| 158 | * @return the class name (without package qualification) of the reference | ||
| 159 | * type | ||
| 160 | * @since JDK1.1 | ||
| 161 | */ | ||
| 162 | String getRefClass(java.io.ObjectOutput out); | ||
| 163 | |||
| 164 | /** | ||
| 165 | * Returns a hashcode for a remote object. Two remote object stubs | ||
| 166 | * that refer to the same remote object will have the same hash code | ||
| 167 | * (in order to support remote objects as keys in hash tables). | ||
| 168 | * | ||
| 169 | * @return remote object hashcode | ||
| 170 | * @see java.util.Hashtable | ||
| 171 | * @since JDK1.1 | ||
| 172 | */ | ||
| 173 | int remoteHashCode(); | ||
| 174 | |||
| 175 | /** | ||
| 176 | * Compares two remote objects for equality. | ||
| 177 | * Returns a boolean that indicates whether this remote object is | ||
| 178 | * equivalent to the specified Object. This method is used when a | ||
| 179 | * remote object is stored in a hashtable. | ||
| 180 | * @param obj the Object to compare with | ||
| 181 | * @return true if these Objects are equal; false otherwise. | ||
| 182 | * @see java.util.Hashtable | ||
| 183 | * @since JDK1.1 | ||
| 184 | */ | ||
| 185 | boolean remoteEquals(RemoteRef obj); | ||
| 186 | |||
| 187 | /** | ||
| 188 | * Returns a String that represents the reference of this remote | ||
| 189 | * object. | ||
| 190 | * @return string representing remote object reference | ||
| 191 | * @since JDK1.1 | ||
| 192 | */ | ||
| 193 | String remoteToString(); | ||
| 194 | |||
| 195 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2002, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.rmi.*; | ||
| 28 | import sun.rmi.server.UnicastServerRef; | ||
| 29 | import sun.rmi.runtime.Log; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * The <code>RemoteServer</code> class is the common superclass to server | ||
| 33 | * implementations and provides the framework to support a wide range | ||
| 34 | * of remote reference semantics. Specifically, the functions needed | ||
| 35 | * to create and export remote objects (i.e. to make them remotely | ||
| 36 | * available) are provided abstractly by <code>RemoteServer</code> and | ||
| 37 | * concretely by its subclass(es). | ||
| 38 | * | ||
| 39 | * @author Ann Wollrath | ||
| 40 | * @since JDK1.1 | ||
| 41 | */ | ||
| 42 | public abstract class RemoteServer extends RemoteObject | ||
| 43 | { | ||
| 44 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 45 | private static final long serialVersionUID = -4100238210092549637L; | ||
| 46 | |||
| 47 | /** | ||
| 48 | * Constructs a <code>RemoteServer</code>. | ||
| 49 | * @since JDK1.1 | ||
| 50 | */ | ||
| 51 | protected RemoteServer() { | ||
| 52 | super(); | ||
| 53 | } | ||
| 54 | |||
| 55 | /** | ||
| 56 | * Constructs a <code>RemoteServer</code> with the given reference type. | ||
| 57 | * | ||
| 58 | * @param ref the remote reference | ||
| 59 | * @since JDK1.1 | ||
| 60 | */ | ||
| 61 | protected RemoteServer(RemoteRef ref) { | ||
| 62 | super(ref); | ||
| 63 | } | ||
| 64 | |||
| 65 | /** | ||
| 66 | * Returns a string representation of the client host for the | ||
| 67 | * remote method invocation being processed in the current thread. | ||
| 68 | * | ||
| 69 | * @return a string representation of the client host | ||
| 70 | * | ||
| 71 | * @throws ServerNotActiveException if no remote method invocation | ||
| 72 | * is being processed in the current thread | ||
| 73 | * | ||
| 74 | * @since JDK1.1 | ||
| 75 | */ | ||
| 76 | public static String getClientHost() throws ServerNotActiveException { | ||
| 77 | return sun.rmi.transport.tcp.TCPTransport.getClientHost(); | ||
| 78 | } | ||
| 79 | |||
| 80 | /** | ||
| 81 | * Log RMI calls to the output stream <code>out</code>. If | ||
| 82 | * <code>out</code> is <code>null</code>, call logging is turned off. | ||
| 83 | * | ||
| 84 | * <p>If there is a security manager, its | ||
| 85 | * <code>checkPermission</code> method will be invoked with a | ||
| 86 | * <code>java.util.logging.LoggingPermission("control")</code> | ||
| 87 | * permission; this could result in a <code>SecurityException</code>. | ||
| 88 | * | ||
| 89 | * @param out the output stream to which RMI calls should be logged | ||
| 90 | * @throws SecurityException if there is a security manager and | ||
| 91 | * the invocation of its <code>checkPermission</code> method | ||
| 92 | * fails | ||
| 93 | * @see #getLog | ||
| 94 | * @since JDK1.1 | ||
| 95 | */ | ||
| 96 | public static void setLog(java.io.OutputStream out) | ||
| 97 | { | ||
| 98 | logNull = (out == null); | ||
| 99 | UnicastServerRef.callLog.setOutputStream(out); | ||
| 100 | } | ||
| 101 | |||
| 102 | /** | ||
| 103 | * Returns stream for the RMI call log. | ||
| 104 | * @return the call log | ||
| 105 | * @see #setLog | ||
| 106 | * @since JDK1.1 | ||
| 107 | */ | ||
| 108 | public static java.io.PrintStream getLog() | ||
| 109 | { | ||
| 110 | return (logNull ? null : UnicastServerRef.callLog.getPrintStream()); | ||
| 111 | } | ||
| 112 | |||
| 113 | // initialize log status | ||
| 114 | private static boolean logNull = !UnicastServerRef.logCalls; | ||
| 115 | } | ||
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| @@ -0,0 +1,74 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | /** | ||
| 28 | * The <code>RemoteStub</code> class is the common superclass to client | ||
| 29 | * stubs and provides the framework to support a wide range of remote | ||
| 30 | * reference semantics. Stub objects are surrogates that support | ||
| 31 | * exactly the same set of remote interfaces defined by the actual | ||
| 32 | * implementation of the remote object. | ||
| 33 | * | ||
| 34 | * @author Ann Wollrath | ||
| 35 | * @since JDK1.1 | ||
| 36 | */ | ||
| 37 | abstract public class RemoteStub extends RemoteObject { | ||
| 38 | |||
| 39 | /** indicate compatibility with JDK 1.1.x version of class */ | ||
| 40 | private static final long serialVersionUID = -1585587260594494182L; | ||
| 41 | |||
| 42 | /** | ||
| 43 | * Constructs a <code>RemoteStub</code>. | ||
| 44 | */ | ||
| 45 | protected RemoteStub() { | ||
| 46 | super(); | ||
| 47 | } | ||
| 48 | |||
| 49 | /** | ||
| 50 | * Constructs a <code>RemoteStub</code>, with the specified remote | ||
| 51 | * reference. | ||
| 52 | * | ||
| 53 | * @param ref the remote reference | ||
| 54 | * @since JDK1.1 | ||
| 55 | */ | ||
| 56 | protected RemoteStub(RemoteRef ref) { | ||
| 57 | super(ref); | ||
| 58 | } | ||
| 59 | |||
| 60 | /** | ||
| 61 | * Sets the remote reference inside the remote stub. | ||
| 62 | * | ||
| 63 | * @param stub the remote stub | ||
| 64 | * @param ref the remote reference | ||
| 65 | * @since JDK1.1 | ||
| 66 | * @deprecated no replacement. The <code>setRef</code> method | ||
| 67 | * is not needed since <code>RemoteStub</code>s can be created with | ||
| 68 | * the <code>RemoteStub(RemoteRef)</code> constructor. | ||
| 69 | */ | ||
| 70 | @Deprecated | ||
| 71 | protected static void setRef(RemoteStub stub, RemoteRef ref) { | ||
| 72 | throw new UnsupportedOperationException(); | ||
| 73 | } | ||
| 74 | } | ||
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| @@ -0,0 +1,112 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2003, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * A <code>ServerCloneException</code> is thrown if a remote exception occurs | ||
| 30 | * during the cloning of a <code>UnicastRemoteObject</code>. | ||
| 31 | * | ||
| 32 | * <p>As of release 1.4, this exception has been retrofitted to conform to | ||
| 33 | * the general purpose exception-chaining mechanism. The "nested exception" | ||
| 34 | * that may be provided at construction time and accessed via the public | ||
| 35 | * {@link #detail} field is now known as the <i>cause</i>, and may be | ||
| 36 | * accessed via the {@link Throwable#getCause()} method, as well as | ||
| 37 | * the aforementioned "legacy field." | ||
| 38 | * | ||
| 39 | * <p>Invoking the method {@link Throwable#initCause(Throwable)} on an | ||
| 40 | * instance of <code>ServerCloneException</code> always throws {@link | ||
| 41 | * IllegalStateException}. | ||
| 42 | * | ||
| 43 | * @author Ann Wollrath | ||
| 44 | * @since JDK1.1 | ||
| 45 | * @see java.rmi.server.UnicastRemoteObject#clone() | ||
| 46 | */ | ||
| 47 | public class ServerCloneException extends CloneNotSupportedException { | ||
| 48 | |||
| 49 | /** | ||
| 50 | * The cause of the exception. | ||
| 51 | * | ||
| 52 | * <p>This field predates the general-purpose exception chaining facility. | ||
| 53 | * The {@link Throwable#getCause()} method is now the preferred means of | ||
| 54 | * obtaining this information. | ||
| 55 | * | ||
| 56 | * @serial | ||
| 57 | */ | ||
| 58 | public Exception detail; | ||
| 59 | |||
| 60 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 61 | private static final long serialVersionUID = 6617456357664815945L; | ||
| 62 | |||
| 63 | /** | ||
| 64 | * Constructs a <code>ServerCloneException</code> with the specified | ||
| 65 | * detail message. | ||
| 66 | * | ||
| 67 | * @param s the detail message. | ||
| 68 | */ | ||
| 69 | public ServerCloneException(String s) { | ||
| 70 | super(s); | ||
| 71 | initCause(null); // Disallow subsequent initCause | ||
| 72 | } | ||
| 73 | |||
| 74 | /** | ||
| 75 | * Constructs a <code>ServerCloneException</code> with the specified | ||
| 76 | * detail message and cause. | ||
| 77 | * | ||
| 78 | * @param s the detail message. | ||
| 79 | * @param cause the cause | ||
| 80 | */ | ||
| 81 | public ServerCloneException(String s, Exception cause) { | ||
| 82 | super(s); | ||
| 83 | initCause(null); // Disallow subsequent initCause | ||
| 84 | detail = cause; | ||
| 85 | } | ||
| 86 | |||
| 87 | /** | ||
| 88 | * Returns the detail message, including the message from the cause, if | ||
| 89 | * any, of this exception. | ||
| 90 | * | ||
| 91 | * @return the detail message | ||
| 92 | */ | ||
| 93 | public String getMessage() { | ||
| 94 | if (detail == null) | ||
| 95 | return super.getMessage(); | ||
| 96 | else | ||
| 97 | return super.getMessage() + | ||
| 98 | "; nested exception is: \n\t" + | ||
| 99 | detail.toString(); | ||
| 100 | } | ||
| 101 | |||
| 102 | /** | ||
| 103 | * Returns the cause of this exception. This method returns the value | ||
| 104 | * of the {@link #detail} field. | ||
| 105 | * | ||
| 106 | * @return the cause, which may be <tt>null</tt>. | ||
| 107 | * @since 1.4 | ||
| 108 | */ | ||
| 109 | public Throwable getCause() { | ||
| 110 | return detail; | ||
| 111 | } | ||
| 112 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * An <code>ServerNotActiveException</code> is an <code>Exception</code> | ||
| 30 | * thrown during a call to <code>RemoteServer.getClientHost</code> if | ||
| 31 | * the getClientHost method is called outside of servicing a remote | ||
| 32 | * method call. | ||
| 33 | * | ||
| 34 | * @author Roger Riggs | ||
| 35 | * @since JDK1.1 | ||
| 36 | * @see java.rmi.server.RemoteServer#getClientHost() | ||
| 37 | */ | ||
| 38 | public class ServerNotActiveException extends java.lang.Exception { | ||
| 39 | |||
| 40 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 41 | private static final long serialVersionUID = 4687940720827538231L; | ||
| 42 | |||
| 43 | /** | ||
| 44 | * Constructs an <code>ServerNotActiveException</code> with no specified | ||
| 45 | * detail message. | ||
| 46 | * @since JDK1.1 | ||
| 47 | */ | ||
| 48 | public ServerNotActiveException() {} | ||
| 49 | |||
| 50 | /** | ||
| 51 | * Constructs an <code>ServerNotActiveException</code> with the specified | ||
| 52 | * detail message. | ||
| 53 | * | ||
| 54 | * @param s the detail message. | ||
| 55 | * @since JDK1.1 | ||
| 56 | */ | ||
| 57 | public ServerNotActiveException(String s) | ||
| 58 | { | ||
| 59 | super(s); | ||
| 60 | } | ||
| 61 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 1999, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.rmi.*; | ||
| 29 | |||
| 30 | /** | ||
| 31 | * A ServerRef represents the server-side handle for a remote object | ||
| 32 | * implementation. | ||
| 33 | * | ||
| 34 | * @author Ann Wollrath | ||
| 35 | * @since JDK1.1 | ||
| 36 | */ | ||
| 37 | public interface ServerRef extends RemoteRef { | ||
| 38 | |||
| 39 | /** indicate compatibility with JDK 1.1.x version of class. */ | ||
| 40 | static final long serialVersionUID = -4557750989390278438L; | ||
| 41 | |||
| 42 | /** | ||
| 43 | * Creates a client stub object for the supplied Remote object. | ||
| 44 | * If the call completes successfully, the remote object should | ||
| 45 | * be able to accept incoming calls from clients. | ||
| 46 | * @param obj the remote object implementation | ||
| 47 | * @param data information necessary to export the object | ||
| 48 | * @return the stub for the remote object | ||
| 49 | * @exception RemoteException if an exception occurs attempting | ||
| 50 | * to export the object (e.g., stub class could not be found) | ||
| 51 | * @since JDK1.1 | ||
| 52 | */ | ||
| 53 | RemoteStub exportObject(Remote obj, Object data) | ||
| 54 | throws RemoteException; | ||
| 55 | |||
| 56 | /** | ||
| 57 | * Returns the hostname of the current client. When called from a | ||
| 58 | * thread actively handling a remote method invocation the | ||
| 59 | * hostname of the client is returned. | ||
| 60 | * @return the client's host name | ||
| 61 | * @exception ServerNotActiveException if called outside of servicing | ||
| 62 | * a remote method invocation | ||
| 63 | * @since JDK1.1 | ||
| 64 | */ | ||
| 65 | String getClientHost() throws ServerNotActiveException; | ||
| 66 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.rmi.Remote; | ||
| 28 | |||
| 29 | /** | ||
| 30 | * The <code>Skeleton</code> interface is used solely by the RMI | ||
| 31 | * implementation. | ||
| 32 | * | ||
| 33 | * <p> Every version 1.1 (and version 1.1 compatible skeletons generated in | ||
| 34 | * 1.2 using <code>rmic -vcompat</code>) skeleton class generated by the rmic | ||
| 35 | * stub compiler implements this interface. A skeleton for a remote object is | ||
| 36 | * a server-side entity that dispatches calls to the actual remote object | ||
| 37 | * implementation. | ||
| 38 | * | ||
| 39 | * @author Ann Wollrath | ||
| 40 | * @since JDK1.1 | ||
| 41 | * @deprecated no replacement. Skeletons are no longer required for remote | ||
| 42 | * method calls in the Java 2 platform v1.2 and greater. | ||
| 43 | */ | ||
| 44 | @Deprecated | ||
| 45 | public interface Skeleton { | ||
| 46 | /** | ||
| 47 | * Unmarshals arguments, calls the actual remote object implementation, | ||
| 48 | * and marshals the return value or any exception. | ||
| 49 | * | ||
| 50 | * @param obj remote implementation to dispatch call to | ||
| 51 | * @param theCall object representing remote call | ||
| 52 | * @param opnum operation number | ||
| 53 | * @param hash stub/skeleton interface hash | ||
| 54 | * @exception java.lang.Exception if a general exception occurs. | ||
| 55 | * @since JDK1.1 | ||
| 56 | * @deprecated no replacement | ||
| 57 | */ | ||
| 58 | @Deprecated | ||
| 59 | void dispatch(Remote obj, RemoteCall theCall, int opnum, long hash) | ||
| 60 | throws Exception; | ||
| 61 | |||
| 62 | /** | ||
| 63 | * Returns the operations supported by the skeleton. | ||
| 64 | * @return operations supported by skeleton | ||
| 65 | * @since JDK1.1 | ||
| 66 | * @deprecated no replacement | ||
| 67 | */ | ||
| 68 | @Deprecated | ||
| 69 | Operation[] getOperations(); | ||
| 70 | } | ||
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| @@ -0,0 +1,62 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.rmi.RemoteException; | ||
| 29 | |||
| 30 | /** | ||
| 31 | * This exception is thrown when a call is received that does not | ||
| 32 | * match the available skeleton. It indicates either that the | ||
| 33 | * remote method names or signatures in this interface have changed or | ||
| 34 | * that the stub class used to make the call and the skeleton | ||
| 35 | * receiving the call were not generated by the same version of | ||
| 36 | * the stub compiler (<code>rmic</code>). | ||
| 37 | * | ||
| 38 | * @author Roger Riggs | ||
| 39 | * @since JDK1.1 | ||
| 40 | * @deprecated no replacement. Skeletons are no longer required for remote | ||
| 41 | * method calls in the Java 2 platform v1.2 and greater. | ||
| 42 | */ | ||
| 43 | @Deprecated | ||
| 44 | public class SkeletonMismatchException extends RemoteException { | ||
| 45 | |||
| 46 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 47 | private static final long serialVersionUID = -7780460454818859281L; | ||
| 48 | |||
| 49 | /** | ||
| 50 | * Constructs a new <code>SkeletonMismatchException</code> with | ||
| 51 | * a specified detail message. | ||
| 52 | * | ||
| 53 | * @param s the detail message | ||
| 54 | * @since JDK1.1 | ||
| 55 | * @deprecated no replacement | ||
| 56 | */ | ||
| 57 | @Deprecated | ||
| 58 | public SkeletonMismatchException(String s) { | ||
| 59 | super(s); | ||
| 60 | } | ||
| 61 | |||
| 62 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | import java.rmi.RemoteException; | ||
| 29 | |||
| 30 | /** | ||
| 31 | * A <code>SkeletonNotFoundException</code> is thrown if the | ||
| 32 | * <code>Skeleton</code> corresponding to the remote object being | ||
| 33 | * exported is not found. Skeletons are no longer required, so this | ||
| 34 | * exception is never thrown. | ||
| 35 | * | ||
| 36 | * @since JDK1.1 | ||
| 37 | * @deprecated no replacement. Skeletons are no longer required for remote | ||
| 38 | * method calls in the Java 2 platform v1.2 and greater. | ||
| 39 | */ | ||
| 40 | @Deprecated | ||
| 41 | public class SkeletonNotFoundException extends RemoteException { | ||
| 42 | |||
| 43 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 44 | private static final long serialVersionUID = -7860299673822761231L; | ||
| 45 | |||
| 46 | /** | ||
| 47 | * Constructs a <code>SkeletonNotFoundException</code> with the specified | ||
| 48 | * detail message. | ||
| 49 | * | ||
| 50 | * @param s the detail message. | ||
| 51 | * @since JDK1.1 | ||
| 52 | */ | ||
| 53 | public SkeletonNotFoundException(String s) { | ||
| 54 | super(s); | ||
| 55 | } | ||
| 56 | |||
| 57 | /** | ||
| 58 | * Constructs a <code>SkeletonNotFoundException</code> with the specified | ||
| 59 | * detail message and nested exception. | ||
| 60 | * | ||
| 61 | * @param s the detail message. | ||
| 62 | * @param ex the nested exception | ||
| 63 | * @since JDK1.1 | ||
| 64 | */ | ||
| 65 | public SkeletonNotFoundException(String s, Exception ex) { | ||
| 66 | super(s, ex); | ||
| 67 | } | ||
| 68 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2003, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * An obsolete subclass of {@link ExportException}. | ||
| 30 | * | ||
| 31 | * @author Ann Wollrath | ||
| 32 | * @since JDK1.1 | ||
| 33 | **/ | ||
| 34 | public class SocketSecurityException extends ExportException { | ||
| 35 | |||
| 36 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 37 | private static final long serialVersionUID = -7622072999407781979L; | ||
| 38 | |||
| 39 | /** | ||
| 40 | * Constructs an <code>SocketSecurityException</code> with the specified | ||
| 41 | * detail message. | ||
| 42 | * | ||
| 43 | * @param s the detail message. | ||
| 44 | * @since JDK1.1 | ||
| 45 | */ | ||
| 46 | public SocketSecurityException(String s) { | ||
| 47 | super(s); | ||
| 48 | } | ||
| 49 | |||
| 50 | /** | ||
| 51 | * Constructs an <code>SocketSecurityException</code> with the specified | ||
| 52 | * detail message and nested exception. | ||
| 53 | * | ||
| 54 | * @param s the detail message. | ||
| 55 | * @param ex the nested exception | ||
| 56 | * @since JDK1.1 | ||
| 57 | */ | ||
| 58 | public SocketSecurityException(String s, Exception ex) { | ||
| 59 | super(s, ex); | ||
| 60 | } | ||
| 61 | |||
| 62 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.io.DataInput; | ||
| 28 | import java.io.DataOutput; | ||
| 29 | import java.io.IOException; | ||
| 30 | import java.io.Serializable; | ||
| 31 | import java.security.SecureRandom; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * A <code>UID</code> represents an identifier that is unique over time | ||
| 35 | * with respect to the host it is generated on, or one of 2<sup>16</sup> | ||
| 36 | * "well-known" identifiers. | ||
| 37 | * | ||
| 38 | * <p>The {@link #UID()} constructor can be used to generate an | ||
| 39 | * identifier that is unique over time with respect to the host it is | ||
| 40 | * generated on. The {@link #UID(short)} constructor can be used to | ||
| 41 | * create one of 2<sup>16</sup> well-known identifiers. | ||
| 42 | * | ||
| 43 | * <p>A <code>UID</code> instance contains three primitive values: | ||
| 44 | * <ul> | ||
| 45 | * <li><code>unique</code>, an <code>int</code> that uniquely identifies | ||
| 46 | * the VM that this <code>UID</code> was generated in, with respect to its | ||
| 47 | * host and at the time represented by the <code>time</code> value (an | ||
| 48 | * example implementation of the <code>unique</code> value would be a | ||
| 49 | * process identifier), | ||
| 50 | * or zero for a well-known <code>UID</code> | ||
| 51 | * <li><code>time</code>, a <code>long</code> equal to a time (as returned | ||
| 52 | * by {@link System#currentTimeMillis()}) at which the VM that this | ||
| 53 | * <code>UID</code> was generated in was alive, | ||
| 54 | * or zero for a well-known <code>UID</code> | ||
| 55 | * <li><code>count</code>, a <code>short</code> to distinguish | ||
| 56 | * <code>UID</code>s generated in the same VM with the same | ||
| 57 | * <code>time</code> value | ||
| 58 | * </ul> | ||
| 59 | * | ||
| 60 | * <p>An independently generated <code>UID</code> instance is unique | ||
| 61 | * over time with respect to the host it is generated on as long as | ||
| 62 | * the host requires more than one millisecond to reboot and its system | ||
| 63 | * clock is never set backward. A globally unique identifier can be | ||
| 64 | * constructed by pairing a <code>UID</code> instance with a unique host | ||
| 65 | * identifier, such as an IP address. | ||
| 66 | * | ||
| 67 | * @author Ann Wollrath | ||
| 68 | * @author Peter Jones | ||
| 69 | * @since JDK1.1 | ||
| 70 | */ | ||
| 71 | public final class UID implements Serializable { | ||
| 72 | |||
| 73 | private static int hostUnique; | ||
| 74 | private static boolean hostUniqueSet = false; | ||
| 75 | |||
| 76 | private static final Object lock = new Object(); | ||
| 77 | private static long lastTime = System.currentTimeMillis(); | ||
| 78 | private static short lastCount = Short.MIN_VALUE; | ||
| 79 | |||
| 80 | /** indicate compatibility with JDK 1.1.x version of class */ | ||
| 81 | private static final long serialVersionUID = 1086053664494604050L; | ||
| 82 | |||
| 83 | /** | ||
| 84 | * number that uniquely identifies the VM that this <code>UID</code> | ||
| 85 | * was generated in with respect to its host and at the given time | ||
| 86 | * @serial | ||
| 87 | */ | ||
| 88 | private final int unique; | ||
| 89 | |||
| 90 | /** | ||
| 91 | * a time (as returned by {@link System#currentTimeMillis()}) at which | ||
| 92 | * the VM that this <code>UID</code> was generated in was alive | ||
| 93 | * @serial | ||
| 94 | */ | ||
| 95 | private final long time; | ||
| 96 | |||
| 97 | /** | ||
| 98 | * 16-bit number to distinguish <code>UID</code> instances created | ||
| 99 | * in the same VM with the same time value | ||
| 100 | * @serial | ||
| 101 | */ | ||
| 102 | private final short count; | ||
| 103 | |||
| 104 | /** | ||
| 105 | * Generates a <code>UID</code> that is unique over time with | ||
| 106 | * respect to the host that it was generated on. | ||
| 107 | */ | ||
| 108 | public UID() { | ||
| 109 | |||
| 110 | synchronized (lock) { | ||
| 111 | if (!hostUniqueSet) { | ||
| 112 | hostUnique = (new SecureRandom()).nextInt(); | ||
| 113 | hostUniqueSet = true; | ||
| 114 | } | ||
| 115 | unique = hostUnique; | ||
| 116 | if (lastCount == Short.MAX_VALUE) { | ||
| 117 | boolean interrupted = Thread.interrupted(); | ||
| 118 | boolean done = false; | ||
| 119 | while (!done) { | ||
| 120 | long now = System.currentTimeMillis(); | ||
| 121 | if (now <= lastTime) { | ||
| 122 | // wait for time to change | ||
| 123 | try { | ||
| 124 | Thread.currentThread().sleep(1); | ||
| 125 | } catch (InterruptedException e) { | ||
| 126 | interrupted = true; | ||
| 127 | } | ||
| 128 | } else { | ||
| 129 | lastTime = now; | ||
| 130 | lastCount = Short.MIN_VALUE; | ||
| 131 | done = true; | ||
| 132 | } | ||
| 133 | } | ||
| 134 | if (interrupted) { | ||
| 135 | Thread.currentThread().interrupt(); | ||
| 136 | } | ||
| 137 | } | ||
| 138 | time = lastTime; | ||
| 139 | count = lastCount++; | ||
| 140 | } | ||
| 141 | } | ||
| 142 | |||
| 143 | /** | ||
| 144 | * Creates a "well-known" <code>UID</code>. | ||
| 145 | * | ||
| 146 | * There are 2<sup>16</sup> possible such well-known ids. | ||
| 147 | * | ||
| 148 | * <p>A <code>UID</code> created via this constructor will not | ||
| 149 | * clash with any <code>UID</code>s generated via the no-arg | ||
| 150 | * constructor. | ||
| 151 | * | ||
| 152 | * @param num number for well-known <code>UID</code> | ||
| 153 | */ | ||
| 154 | public UID(short num) { | ||
| 155 | unique = 0; | ||
| 156 | time = 0; | ||
| 157 | count = num; | ||
| 158 | } | ||
| 159 | |||
| 160 | /** | ||
| 161 | * Constructs a <code>UID</code> given data read from a stream. | ||
| 162 | */ | ||
| 163 | private UID(int unique, long time, short count) { | ||
| 164 | this.unique = unique; | ||
| 165 | this.time = time; | ||
| 166 | this.count = count; | ||
| 167 | } | ||
| 168 | |||
| 169 | /** | ||
| 170 | * Returns the hash code value for this <code>UID</code>. | ||
| 171 | * | ||
| 172 | * @return the hash code value for this <code>UID</code> | ||
| 173 | */ | ||
| 174 | public int hashCode() { | ||
| 175 | return (int) time + (int) count; | ||
| 176 | } | ||
| 177 | |||
| 178 | /** | ||
| 179 | * Compares the specified object with this <code>UID</code> for | ||
| 180 | * equality. | ||
| 181 | * | ||
| 182 | * This method returns <code>true</code> if and only if the | ||
| 183 | * specified object is a <code>UID</code> instance with the same | ||
| 184 | * <code>unique</code>, <code>time</code>, and <code>count</code> | ||
| 185 | * values as this one. | ||
| 186 | * | ||
| 187 | * @param obj the object to compare this <code>UID</code> to | ||
| 188 | * | ||
| 189 | * @return <code>true</code> if the given object is equivalent to | ||
| 190 | * this one, and <code>false</code> otherwise | ||
| 191 | */ | ||
| 192 | public boolean equals(Object obj) { | ||
| 193 | if (obj instanceof UID) { | ||
| 194 | UID uid = (UID) obj; | ||
| 195 | return (unique == uid.unique && | ||
| 196 | count == uid.count && | ||
| 197 | time == uid.time); | ||
| 198 | } else { | ||
| 199 | return false; | ||
| 200 | } | ||
| 201 | } | ||
| 202 | |||
| 203 | /** | ||
| 204 | * Returns a string representation of this <code>UID</code>. | ||
| 205 | * | ||
| 206 | * @return a string representation of this <code>UID</code> | ||
| 207 | */ | ||
| 208 | public String toString() { | ||
| 209 | return Integer.toString(unique,16) + ":" + | ||
| 210 | Long.toString(time,16) + ":" + | ||
| 211 | Integer.toString(count,16); | ||
| 212 | } | ||
| 213 | |||
| 214 | /** | ||
| 215 | * Marshals a binary representation of this <code>UID</code> to | ||
| 216 | * a <code>DataOutput</code> instance. | ||
| 217 | * | ||
| 218 | * <p>Specifically, this method first invokes the given stream's | ||
| 219 | * {@link DataOutput#writeInt(int)} method with this <code>UID</code>'s | ||
| 220 | * <code>unique</code> value, then it invokes the stream's | ||
| 221 | * {@link DataOutput#writeLong(long)} method with this <code>UID</code>'s | ||
| 222 | * <code>time</code> value, and then it invokes the stream's | ||
| 223 | * {@link DataOutput#writeShort(int)} method with this <code>UID</code>'s | ||
| 224 | * <code>count</code> value. | ||
| 225 | * | ||
| 226 | * @param out the <code>DataOutput</code> instance to write | ||
| 227 | * this <code>UID</code> to | ||
| 228 | * | ||
| 229 | * @throws IOException if an I/O error occurs while performing | ||
| 230 | * this operation | ||
| 231 | */ | ||
| 232 | public void write(DataOutput out) throws IOException { | ||
| 233 | out.writeInt(unique); | ||
| 234 | out.writeLong(time); | ||
| 235 | out.writeShort(count); | ||
| 236 | } | ||
| 237 | |||
| 238 | /** | ||
| 239 | * Constructs and returns a new <code>UID</code> instance by | ||
| 240 | * unmarshalling a binary representation from an | ||
| 241 | * <code>DataInput</code> instance. | ||
| 242 | * | ||
| 243 | * <p>Specifically, this method first invokes the given stream's | ||
| 244 | * {@link DataInput#readInt()} method to read a <code>unique</code> value, | ||
| 245 | * then it invoke's the stream's | ||
| 246 | * {@link DataInput#readLong()} method to read a <code>time</code> value, | ||
| 247 | * then it invoke's the stream's | ||
| 248 | * {@link DataInput#readShort()} method to read a <code>count</code> value, | ||
| 249 | * and then it creates and returns a new <code>UID</code> instance | ||
| 250 | * that contains the <code>unique</code>, <code>time</code>, and | ||
| 251 | * <code>count</code> values that were read from the stream. | ||
| 252 | * | ||
| 253 | * @param in the <code>DataInput</code> instance to read | ||
| 254 | * <code>UID</code> from | ||
| 255 | * | ||
| 256 | * @return unmarshalled <code>UID</code> instance | ||
| 257 | * | ||
| 258 | * @throws IOException if an I/O error occurs while performing | ||
| 259 | * this operation | ||
| 260 | */ | ||
| 261 | public static UID read(DataInput in) throws IOException { | ||
| 262 | int unique = in.readInt(); | ||
| 263 | long time = in.readLong(); | ||
| 264 | short count = in.readShort(); | ||
| 265 | return new UID(unique, time, count); | ||
| 266 | } | ||
| 267 | } | ||
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 2003, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.rmi.server; | ||
| 26 | |||
| 27 | import java.rmi.*; | ||
| 28 | import sun.rmi.server.UnicastServerRef; | ||
| 29 | import sun.rmi.server.UnicastServerRef2; | ||
| 30 | |||
| 31 | /** | ||
| 32 | * Used for exporting a remote object with JRMP and obtaining a stub | ||
| 33 | * that communicates to the remote object. | ||
| 34 | * | ||
| 35 | * <p>For the constructors and static <code>exportObject</code> methods | ||
| 36 | * below, the stub for a remote object being exported is obtained as | ||
| 37 | * follows: | ||
| 38 | * | ||
| 39 | * <p><ul> | ||
| 40 | * | ||
| 41 | * <li>If the remote object is exported using the {@link | ||
| 42 | * #exportObject(Remote) UnicastRemoteObject.exportObject(Remote)} method, | ||
| 43 | * a stub class (typically pregenerated from the remote object's class | ||
| 44 | * using the <code>rmic</code> tool) is loaded and an instance of that stub | ||
| 45 | * class is constructed as follows. | ||
| 46 | * <ul> | ||
| 47 | * | ||
| 48 | * <li>A "root class" is determined as follows: if the remote object's | ||
| 49 | * class directly implements an interface that extends {@link Remote}, then | ||
| 50 | * the remote object's class is the root class; otherwise, the root class is | ||
| 51 | * the most derived superclass of the remote object's class that directly | ||
| 52 | * implements an interface that extends <code>Remote</code>. | ||
| 53 | * | ||
| 54 | * <li>The name of the stub class to load is determined by concatenating | ||
| 55 | * the binary name of the root class with the suffix <code>"_Stub"</code>. | ||
| 56 | * | ||
| 57 | * <li>The stub class is loaded by name using the class loader of the root | ||
| 58 | * class. The stub class must extend {@link RemoteStub} and must have a | ||
| 59 | * public constructor that has one parameter, of type {@link RemoteRef}. | ||
| 60 | * | ||
| 61 | * <li>Finally, an instance of the stub class is constructed with a | ||
| 62 | * {@link RemoteRef}. | ||
| 63 | * </ul> | ||
| 64 | * | ||
| 65 | * <li>If the appropriate stub class could not be found, or the stub class | ||
| 66 | * could not be loaded, or a problem occurs creating the stub instance, a | ||
| 67 | * {@link StubNotFoundException} is thrown. | ||
| 68 | * | ||
| 69 | * <p> | ||
| 70 | * <li>For all other means of exporting: | ||
| 71 | * <p><ul> | ||
| 72 | * | ||
| 73 | * <li>If the remote object's stub class (as defined above) could not be | ||
| 74 | * loaded or the system property | ||
| 75 | * <code>java.rmi.server.ignoreStubClasses</code> is set to | ||
| 76 | * <code>"true"</code> (case insensitive), a {@link | ||
| 77 | * java.lang.reflect.Proxy} instance is constructed with the following | ||
| 78 | * properties: | ||
| 79 | * | ||
| 80 | * <ul> | ||
| 81 | * | ||
| 82 | * <li>The proxy's class is defined by the class loader of the remote | ||
| 83 | * object's class. | ||
| 84 | * | ||
| 85 | * <li>The proxy implements all the remote interfaces implemented by the | ||
| 86 | * remote object's class. | ||
| 87 | * | ||
| 88 | * <li>The proxy's invocation handler is a {@link | ||
| 89 | * RemoteObjectInvocationHandler} instance constructed with a | ||
| 90 | * {@link RemoteRef}. | ||
| 91 | * | ||
| 92 | * <li>If the proxy could not be created, a {@link StubNotFoundException} | ||
| 93 | * will be thrown. | ||
| 94 | * </ul> | ||
| 95 | * | ||
| 96 | * <p> | ||
| 97 | * <li>Otherwise, an instance of the remote object's stub class (as | ||
| 98 | * described above) is used as the stub. | ||
| 99 | * | ||
| 100 | * </ul> | ||
| 101 | * </ul> | ||
| 102 | * | ||
| 103 | * @author Ann Wollrath | ||
| 104 | * @author Peter Jones | ||
| 105 | * @since JDK1.1 | ||
| 106 | **/ | ||
| 107 | public class UnicastRemoteObject extends RemoteServer { | ||
| 108 | |||
| 109 | /** | ||
| 110 | * @serial port number on which to export object | ||
| 111 | */ | ||
| 112 | private int port = 0; | ||
| 113 | |||
| 114 | /** | ||
| 115 | * @serial client-side socket factory (if any) | ||
| 116 | */ | ||
| 117 | private RMIClientSocketFactory csf = null; | ||
| 118 | |||
| 119 | /** | ||
| 120 | * @serial server-side socket factory (if any) to use when | ||
| 121 | * exporting object | ||
| 122 | */ | ||
| 123 | private RMIServerSocketFactory ssf = null; | ||
| 124 | |||
| 125 | /* indicate compatibility with JDK 1.1.x version of class */ | ||
| 126 | private static final long serialVersionUID = 4974527148936298033L; | ||
| 127 | |||
| 128 | /** | ||
| 129 | * Creates and exports a new UnicastRemoteObject object using an | ||
| 130 | * anonymous port. | ||
| 131 | * @throws RemoteException if failed to export object | ||
| 132 | * @since JDK1.1 | ||
| 133 | */ | ||
| 134 | protected UnicastRemoteObject() throws RemoteException | ||
| 135 | { | ||
| 136 | this(0); | ||
| 137 | } | ||
| 138 | |||
| 139 | /** | ||
| 140 | * Creates and exports a new UnicastRemoteObject object using the | ||
| 141 | * particular supplied port. | ||
| 142 | * @param port the port number on which the remote object receives calls | ||
| 143 | * (if <code>port</code> is zero, an anonymous port is chosen) | ||
| 144 | * @throws RemoteException if failed to export object | ||
| 145 | * @since 1.2 | ||
| 146 | */ | ||
| 147 | protected UnicastRemoteObject(int port) throws RemoteException | ||
| 148 | { | ||
| 149 | this.port = port; | ||
| 150 | exportObject((Remote) this, port); | ||
| 151 | } | ||
| 152 | |||
| 153 | /** | ||
| 154 | * Creates and exports a new UnicastRemoteObject object using the | ||
| 155 | * particular supplied port and socket factories. | ||
| 156 | * @param port the port number on which the remote object receives calls | ||
| 157 | * (if <code>port</code> is zero, an anonymous port is chosen) | ||
| 158 | * @param csf the client-side socket factory for making calls to the | ||
| 159 | * remote object | ||
| 160 | * @param ssf the server-side socket factory for receiving remote calls | ||
| 161 | * @throws RemoteException if failed to export object | ||
| 162 | * @since 1.2 | ||
| 163 | */ | ||
| 164 | protected UnicastRemoteObject(int port, | ||
| 165 | RMIClientSocketFactory csf, | ||
| 166 | RMIServerSocketFactory ssf) | ||
| 167 | throws RemoteException | ||
| 168 | { | ||
| 169 | this.port = port; | ||
| 170 | this.csf = csf; | ||
| 171 | this.ssf = ssf; | ||
| 172 | exportObject((Remote) this, port, csf, ssf); | ||
| 173 | } | ||
| 174 | |||
| 175 | /** | ||
| 176 | * Re-export the remote object when it is deserialized. | ||
| 177 | */ | ||
| 178 | private void readObject(java.io.ObjectInputStream in) | ||
| 179 | throws java.io.IOException, java.lang.ClassNotFoundException | ||
| 180 | { | ||
| 181 | in.defaultReadObject(); | ||
| 182 | reexport(); | ||
| 183 | } | ||
| 184 | |||
| 185 | /** | ||
| 186 | * Returns a clone of the remote object that is distinct from | ||
| 187 | * the original. | ||
| 188 | * | ||
| 189 | * @exception CloneNotSupportedException if clone failed due to | ||
| 190 | * a RemoteException. | ||
| 191 | * @return the new remote object | ||
| 192 | * @since JDK1.1 | ||
| 193 | */ | ||
| 194 | public Object clone() throws CloneNotSupportedException | ||
| 195 | { | ||
| 196 | try { | ||
| 197 | UnicastRemoteObject cloned = (UnicastRemoteObject) super.clone(); | ||
| 198 | cloned.reexport(); | ||
| 199 | return cloned; | ||
| 200 | } catch (RemoteException e) { | ||
| 201 | throw new ServerCloneException("Clone failed", e); | ||
| 202 | } | ||
| 203 | } | ||
| 204 | |||
| 205 | /* | ||
| 206 | * Exports this UnicastRemoteObject using its initialized fields because | ||
| 207 | * its creation bypassed running its constructors (via deserialization | ||
| 208 | * or cloning, for example). | ||
| 209 | */ | ||
| 210 | private void reexport() throws RemoteException | ||
| 211 | { | ||
| 212 | if (csf == null && ssf == null) { | ||
| 213 | exportObject((Remote) this, port); | ||
| 214 | } else { | ||
| 215 | exportObject((Remote) this, port, csf, ssf); | ||
| 216 | } | ||
| 217 | } | ||
| 218 | |||
| 219 | /** | ||
| 220 | * Exports the remote object to make it available to receive incoming | ||
| 221 | * calls using an anonymous port. | ||
| 222 | * @param obj the remote object to be exported | ||
| 223 | * @return remote object stub | ||
| 224 | * @exception RemoteException if export fails | ||
| 225 | * @since JDK1.1 | ||
| 226 | */ | ||
| 227 | public static RemoteStub exportObject(Remote obj) | ||
| 228 | throws RemoteException | ||
| 229 | { | ||
| 230 | /* | ||
| 231 | * Use UnicastServerRef constructor passing the boolean value true | ||
| 232 | * to indicate that only a generated stub class should be used. A | ||
| 233 | * generated stub class must be used instead of a dynamic proxy | ||
| 234 | * because the return value of this method is RemoteStub which a | ||
| 235 | * dynamic proxy class cannot extend. | ||
| 236 | */ | ||
| 237 | return (RemoteStub) exportObject(obj, new UnicastServerRef(true)); | ||
| 238 | } | ||
| 239 | |||
| 240 | /** | ||
| 241 | * Exports the remote object to make it available to receive incoming | ||
| 242 | * calls, using the particular supplied port. | ||
| 243 | * @param obj the remote object to be exported | ||
| 244 | * @param port the port to export the object on | ||
| 245 | * @return remote object stub | ||
| 246 | * @exception RemoteException if export fails | ||
| 247 | * @since 1.2 | ||
| 248 | */ | ||
| 249 | public static Remote exportObject(Remote obj, int port) | ||
| 250 | throws RemoteException | ||
| 251 | { | ||
| 252 | return exportObject(obj, new UnicastServerRef(port)); | ||
| 253 | } | ||
| 254 | |||
| 255 | /** | ||
| 256 | * Exports the remote object to make it available to receive incoming | ||
| 257 | * calls, using a transport specified by the given socket factory. | ||
| 258 | * @param obj the remote object to be exported | ||
| 259 | * @param port the port to export the object on | ||
| 260 | * @param csf the client-side socket factory for making calls to the | ||
| 261 | * remote object | ||
| 262 | * @param ssf the server-side socket factory for receiving remote calls | ||
| 263 | * @return remote object stub | ||
| 264 | * @exception RemoteException if export fails | ||
| 265 | * @since 1.2 | ||
| 266 | */ | ||
| 267 | public static Remote exportObject(Remote obj, int port, | ||
| 268 | RMIClientSocketFactory csf, | ||
| 269 | RMIServerSocketFactory ssf) | ||
| 270 | throws RemoteException | ||
| 271 | { | ||
| 272 | |||
| 273 | return exportObject(obj, new UnicastServerRef2(port, csf, ssf)); | ||
| 274 | } | ||
| 275 | |||
| 276 | /** | ||
| 277 | * Removes the remote object, obj, from the RMI runtime. If | ||
| 278 | * successful, the object can no longer accept incoming RMI calls. | ||
| 279 | * If the force parameter is true, the object is forcibly unexported | ||
| 280 | * even if there are pending calls to the remote object or the | ||
| 281 | * remote object still has calls in progress. If the force | ||
| 282 | * parameter is false, the object is only unexported if there are | ||
| 283 | * no pending or in progress calls to the object. | ||
| 284 | * | ||
| 285 | * @param obj the remote object to be unexported | ||
| 286 | * @param force if true, unexports the object even if there are | ||
| 287 | * pending or in-progress calls; if false, only unexports the object | ||
| 288 | * if there are no pending or in-progress calls | ||
| 289 | * @return true if operation is successful, false otherwise | ||
| 290 | * @exception NoSuchObjectException if the remote object is not | ||
| 291 | * currently exported | ||
| 292 | * @since 1.2 | ||
| 293 | */ | ||
| 294 | public static boolean unexportObject(Remote obj, boolean force) | ||
| 295 | throws java.rmi.NoSuchObjectException | ||
| 296 | { | ||
| 297 | return sun.rmi.transport.ObjectTable.unexportObject(obj, force); | ||
| 298 | } | ||
| 299 | |||
| 300 | /** | ||
| 301 | * Exports the specified object using the specified server ref. | ||
| 302 | */ | ||
| 303 | private static Remote exportObject(Remote obj, UnicastServerRef sref) | ||
| 304 | throws RemoteException | ||
| 305 | { | ||
| 306 | // if obj extends UnicastRemoteObject, set its ref. | ||
| 307 | if (obj instanceof UnicastRemoteObject) { | ||
| 308 | ((UnicastRemoteObject) obj).ref = sref; | ||
| 309 | } | ||
| 310 | return sref.exportObject(obj, null, false); | ||
| 311 | } | ||
| 312 | } | ||
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| @@ -0,0 +1,45 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.rmi.server; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * A remote object implementation should implement the | ||
| 30 | * <code>Unreferenced</code> interface to receive notification when there are | ||
| 31 | * no more clients that reference that remote object. | ||
| 32 | * | ||
| 33 | * @author Ann Wollrath | ||
| 34 | * @author Roger Riggs | ||
| 35 | * @since JDK1.1 | ||
| 36 | */ | ||
| 37 | public interface Unreferenced { | ||
| 38 | /** | ||
| 39 | * Called by the RMI runtime sometime after the runtime determines that | ||
| 40 | * the reference list, the list of clients referencing the remote object, | ||
| 41 | * becomes empty. | ||
| 42 | * @since JDK1.1 | ||
| 43 | */ | ||
| 44 | public void unreferenced(); | ||
| 45 | } | ||
| @@ -0,0 +1,34 @@ | |||
| 1 | <../../../../../mkconfig | ||
| 2 | |||
| 3 | TARG=\ | ||
| 4 | ExportException.dis\ | ||
| 5 | LoaderHandler.dis\ | ||
| 6 | LogStream.dis\ | ||
| 7 | ObjID.dis\ | ||
| 8 | Operation.dis\ | ||
| 9 | RemoteCall.dis\ | ||
| 10 | RemoteObject.dis\ | ||
| 11 | RemoteObjectInvocationHandler.dis\ | ||
| 12 | RemoteRef.dis\ | ||
| 13 | RemoteServer.dis\ | ||
| 14 | RemoteStub.dis\ | ||
| 15 | RMIClassLoader.dis\ | ||
| 16 | RMIClassLoaderSpi.dis\ | ||
| 17 | RMIClientSocketFactory.dis\ | ||
| 18 | RMIFailureHandler.dis\ | ||
| 19 | RMIServerSocketFactory.dis\ | ||
| 20 | RMISocketFactory.dis\ | ||
| 21 | ServerCloneException.dis\ | ||
| 22 | ServerNotActiveException.dis\ | ||
| 23 | ServerRef.dis\ | ||
| 24 | Skeleton.dis\ | ||
| 25 | SkeletonMismatchException.dis\ | ||
| 26 | SkeletonNotFoundException.dis\ | ||
| 27 | SocketSecurityException.dis\ | ||
| 28 | UID.dis\ | ||
| 29 | UnicastRemoteObject.dis\ | ||
| 30 | Unreferenced.dis\ | ||
| 31 | |||
| 32 | DISBIN=$ROOT/java/dis/java/java/java/rmi/server | ||
| 33 | |||
| 34 | <$ROOT/mkfiles/mkjava | ||
| @@ -0,0 +1,53 @@ | |||
| 1 | <!-- | ||
| 2 | Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | |||
| 5 | This code is free software; you can redistribute it and/or modify it | ||
| 6 | under the terms of the GNU General Public License version 2 only, as | ||
| 7 | published by the Free Software Foundation. Oracle designates this | ||
| 8 | particular file as subject to the "Classpath" exception as provided | ||
| 9 | by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | |||
| 11 | This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | accompanied this code). | ||
| 16 | |||
| 17 | You should have received a copy of the GNU General Public License version | ||
| 18 | 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | |||
| 21 | Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | or visit www.oracle.com if you need additional information or have any | ||
| 23 | questions. | ||
| 24 | --> | ||
| 25 | |||
| 26 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> | ||
| 27 | <html> | ||
| 28 | <body bgcolor="white"> | ||
| 29 | |||
| 30 | Provides classes and interfaces for supporting the server | ||
| 31 | side of RMI. A group of classes are used by the stubs and skeletons | ||
| 32 | generated by the rmic stub compiler. Another group of classes | ||
| 33 | implements the RMI Transport protocol and HTTP tunneling. | ||
| 34 | |||
| 35 | <!-- | ||
| 36 | <h2>Package Specification</h2> | ||
| 37 | |||
| 38 | ##### FILL IN ANY SPECS NEEDED BY JAVA COMPATIBILITY KIT ##### | ||
| 39 | <ul> | ||
| 40 | <li><a href="">##### REFER TO ANY FRAMEMAKER SPECIFICATION HERE #####</a> | ||
| 41 | </ul> | ||
| 42 | |||
| 43 | <h2>Related Documentation</h2> | ||
| 44 | |||
| 45 | For overviews, tutorials, examples, guides, and tool documentation, please see: | ||
| 46 | <ul> | ||
| 47 | <li><a href="">##### REFER TO NON-SPEC DOCUMENTATION HERE #####</a> | ||
| 48 | </ul> | ||
| 49 | --> | ||
| 50 | |||
| 51 | @since JDK1.1 | ||
| 52 | </body> | ||
| 53 | </html> | ||