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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 | } | ||