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 }