001/* RemoteServer.java -- 002 Copyright (c) 1996, 1997, 1998, 1999, 2004, 2006 003 Free Software Foundation, Inc. 004 005This file is part of GNU Classpath. 006 007GNU Classpath is free software; you can redistribute it and/or modify 008it under the terms of the GNU General Public License as published by 009the Free Software Foundation; either version 2, or (at your option) 010any later version. 011 012GNU Classpath is distributed in the hope that it will be useful, but 013WITHOUT ANY WARRANTY; without even the implied warranty of 014MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015General Public License for more details. 016 017You should have received a copy of the GNU General Public License 018along with GNU Classpath; see the file COPYING. If not, write to the 019Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02002110-1301 USA. 021 022Linking this library statically or dynamically with other modules is 023making a combined work based on this library. Thus, the terms and 024conditions of the GNU General Public License cover the whole 025combination. 026 027As a special exception, the copyright holders of this library give you 028permission to link this library with independent modules to produce an 029executable, regardless of the license terms of these independent 030modules, and to copy and distribute the resulting executable under 031terms of your choice, provided that you also meet, for each linked 032independent module, the terms and conditions of the license of that 033module. An independent module is a module which is not derived from 034or based on this library. If you modify this library, you may extend 035this exception to your version of the library, but you are not 036obligated to do so. If you do not wish to do so, delete this 037exception statement from your version. */ 038 039 040package java.rmi.server; 041 042import gnu.java.rmi.server.RMIIncomingThread; 043 044import java.io.OutputStream; 045import java.io.PrintStream; 046 047/** 048 * A common superclass for the server implementations. 049 */ 050public abstract class RemoteServer 051 extends RemoteObject 052{ 053 private static final long serialVersionUID = - 4100238210092549637L; 054 055 /** 056 * Does nothing, delegates to super(). 057 */ 058 protected RemoteServer() 059 { 060 super(); 061 } 062 063 /** 064 * Does nothing, delegates to super(ref). 065 */ 066 protected RemoteServer(RemoteRef ref) 067 { 068 super(ref); 069 } 070 071 /** 072 * Get the host of the calling client. The current thread must be an instance 073 * of the {@link RMIIncomingThread}. 074 * 075 * @return the client host address 076 * 077 * @throws ServerNotActiveException if the current thread is not an instance 078 * of the RMIIncomingThread. 079 */ 080 public static String getClientHost() throws ServerNotActiveException 081 { 082 Thread currThread = Thread.currentThread(); 083 if (currThread instanceof RMIIncomingThread) 084 { 085 RMIIncomingThread incomingThread = (RMIIncomingThread) currThread; 086 return incomingThread.getClientHost(); 087 } 088 else 089 { 090 throw new ServerNotActiveException( 091 "Unknown client host - current thread not instance of 'RMIIncomingThread'"); 092 } 093 } 094 095 /** 096 * Set the stream for logging RMI calls. 097 * 098 * @param out the stream to set or null to turn the logging off. 099 */ 100 public static void setLog(OutputStream out) 101 { 102 throw new Error("Not implemented"); 103 } 104 105 /** 106 * Get the stream for logging RMI calls. 107 * 108 * @return the associated stream. 109 */ 110 public static PrintStream getLog() 111 { 112 throw new Error("Not implemented"); 113 } 114 115}