1/* 2 * Copyright (c) 2003, 2008, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24import java.rmi.RemoteException; 25import java.rmi.server.UnicastRemoteObject; 26import java.util.logging.Logger; 27import java.util.logging.Level; 28 29/** 30 * The OrangeEchoImpl class implements the behavior of the remote "orange 31 * echo" objects exported by the server. The purpose of these objects 32 * is simply to recursively call back to their caller. 33 */ 34public class OrangeEchoImpl extends UnicastRemoteObject implements OrangeEcho { 35 36 private static final Logger logger = 37 Logger.getLogger("reliability.orangeecho"); 38 private final String name; 39 40 public OrangeEchoImpl(String name) throws RemoteException { 41 this.name = name; 42 } 43 44 /** 45 * Call back on supplied "orange" object (presumably the caller) 46 * with the same message data and a decremented recursion level. 47 */ 48 public int[] recurse(Orange orange, int[] message, int level) 49 throws RemoteException 50 { 51 String threadName = Thread.currentThread().getName(); 52 53 logger.log(Level.FINEST, 54 threadName + ": " + toString() + ".recurse(message[" 55 + message.length + "], " + level + "): BEGIN"); 56 57 int[] response = orange.recurse(this, message, level - 1); 58 59 logger.log(Level.FINEST, 60 threadName + ": " + toString() + ".recurse(message[" 61 + message.length + "], " + level + "): END"); 62 63 return response; 64 } 65 66 public String toString() { 67 return name; 68 } 69} 70