OrangeImpl.java

/*
 * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
import java.util.logging.Logger;
import java.util.logging.Level;

/**
 * The OrangeImpl class implements the behavior of the remote "orange"
 * objects exported by the appplication.
 */
public class OrangeImpl
    extends UnicastRemoteObject
    implements Orange
{

    private static Logger logger = Logger.getLogger("reliability.orange");
    private String name;

    public OrangeImpl(String name) throws RemoteException {
        this.name = name;
    }

    /**
     * Return inverted message data, call through supplied OrangeEcho
     * object if not at recursion level zero.
     */
    public int[] recurse(OrangeEcho echo, int[] message, int level)
        throws RemoteException
    {
        try {
            String threadName = Thread.currentThread().getName();
            logger.log(Level.FINEST,
                threadName + ": " + toString() +
                ".recurse(message[" + message.length + "], " +
                level + "): BEGIN");

            int[] response;
            if (level > 0)
                response = echo.recurse(this, message, level);
            else {
                for (int i = 0; i < message.length; ++ i)
                    message[i] = ~message[i];
                response = message;
            }

            logger.log(Level.FINEST,
                threadName + ": " + toString() +
                ".recurse(message[" + message.length + "], " +
                level + "): END");

            return response;
        } catch (RuntimeException e) {
            logger.log(Level.SEVERE, toString() + ".recurse():", e);
            throw e;
        }
    }

    public String toString() {
        return name;
    }
}