incomingpipeadaptor.java

jxta_src_2.41b jxta 2.41b 最新版源码 from www.jxta.org

/*
 * $Id: IncomingPipeAdaptor.java,v 1.3 2006/05/30 20:58:27 hamada Exp $
 *
 * Copyright (c) 2003-2006 Sun Microsystems, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *       Sun Microsystems, Inc. for Project JXTA."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA"
 *    must not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact Project JXTA at http://www.jxta.org.
 *
 * 5. Products derived from this software may not be called "JXTA",
 *    nor may "JXTA" appear in their name, without prior written
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Project JXTA.  For more
 * information on Project JXTA, please see
 * <http://www.jxta.org/>.
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 */

package net.jxta.impl.util.pipe.reliable;

import org.apache.log4j.Level;
import org.apache.log4j.Logger;

import net.jxta.pipe.InputPipe;
import net.jxta.endpoint.Message;

public class IncomingPipeAdaptor implements Runnable {

    private static final Logger LOG = 
        Logger.getLogger(IncomingPipeAdaptor.class.getName());

    private InputPipe pipe = null;
    private Incoming incoming = null;
    private Thread poller = null;

    public IncomingPipeAdaptor(InputPipe pipe, Incoming incoming) {
        if (pipe == null) {
            throw new IllegalArgumentException("pipe cannot be null");
        }
        this.pipe = pipe;

        if (incoming == null) {
            throw new IllegalArgumentException("incoming cannot be null");
        }
        this.incoming = incoming;

        poller = new Thread(this, "Reliable IncomingPipe Message Poll Thread");
        poller.setDaemon(true);
        poller.start();
    }

    public void run() {
        try {
            while (true) {
                Message msg = null;
                try {
                    msg = pipe.waitForMessage();
                } catch (InterruptedException ignore) {
                    continue;
                }

                if (msg != null) {
                    incoming.recv(msg);
                }
            }
        } catch (Throwable all) {
            if (LOG.isEnabledFor(Level.WARN)) {
                LOG.warn("Uncaught Throwable in thread :" + 
                    Thread.currentThread().getName(), all);
            }
        }
    }
}