1/* 2 * Copyright (c) 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. 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 35 extends UnicastRemoteObject 36 implements OrangeEcho 37{ 38 39 private static Logger logger = Logger.getLogger("reliability.orangeecho"); 40 String name; 41 42 public OrangeEchoImpl(String name) throws RemoteException { 43 this.name = name; 44 } 45 46 /** 47 * Call back on supplied "orange" object (presumably the caller) 48 * with the same message data and a decremented recursion level. 49 */ 50 public int[] recurse(Orange orange, int[] message, int level) 51 throws RemoteException 52 { 53 String threadName = Thread.currentThread().getName(); 54 55 logger.log(Level.FINEST, 56 threadName + ": " + toString() + 57 ".recurse(message[" + message.length + "], " + 58 level + "): BEGIN"); 59 60 int[] response = orange.recurse(this, message, level - 1); 61 62 logger.log(Level.FINEST, 63 threadName + ": " + toString() + 64 ".recurse(message[" + message.length + "], " + 65 level + "): END"); 66 67 return response; 68 } 69 70 public String toString() { 71 return name; 72 } 73} 74