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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 | } | ||