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 
  24 import java.rmi.RemoteException;
  25 import java.rmi.server.UnicastRemoteObject;
  26 import java.util.logging.Logger;
  27 import 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  */
  34 public 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 }