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 OrangeImpl class implements the behavior of the remote "orange"
  31  * objects exported by the appplication.
  32  */
  33 public class OrangeImpl
  34     extends UnicastRemoteObject
  35     implements Orange
  36 {
  37 
  38     private static Logger logger = Logger.getLogger("reliability.orange");
  39     private String name;
  40 
  41     public OrangeImpl(String name) throws RemoteException {
  42         this.name = name;
  43     }
  44 
  45     /**
  46      * Return inverted message data, call through supplied OrangeEcho
  47      * object if not at recursion level zero.
  48      */
  49     public int[] recurse(OrangeEcho echo, int[] message, int level)
  50         throws RemoteException
  51     {
  52         try {
  53             String threadName = Thread.currentThread().getName();
  54             logger.log(Level.FINEST,
  55                 threadName + ": " + toString() +
  56                 ".recurse(message[" + message.length + "], " +
  57                 level + "): BEGIN");
  58 
  59             int[] response;
  60             if (level > 0)
  61                 response = echo.recurse(this, message, level);
  62             else {
  63                 for (int i = 0; i < message.length; ++ i)
  64                     message[i] = ~message[i];
  65                 response = message;
  66             }
  67 
  68             logger.log(Level.FINEST,
  69                 threadName + ": " + toString() +
  70                 ".recurse(message[" + message.length + "], " +
  71                 level + "): END");
  72 
  73             return response;
  74         } catch (RuntimeException e) {
  75             logger.log(Level.SEVERE, toString() + ".recurse():", e);
  76             throw e;
  77         }
  78     }
  79 
  80     public String toString() {
  81         return name;
  82     }
  83 }