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