unicastinputpipeimpl.java

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

/*
 *  $Id: UnicastInputPipeImpl.java,v 1.2 2004/06/01 19:06:36 bondolo Exp $
 *
 *  Copyright (c) 2001 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
 *  permission of Sun.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED.  IN NO EVENT SHALL SUN MICROSYSTEMS OR
 *  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 *  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 *  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.
 *
 *  $Id: UnicastInputPipeImpl.java,v 1.2 2004/06/01 19:06:36 bondolo Exp $
 */
package net.jxta.impl.pipe;

import java.io.IOException;

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

import net.jxta.pipe.PipeMsgListener;
import net.jxta.protocol.PipeAdvertisement;

/**
 *  Implements the {@link net.jxta.pipe.InputPipe} interface by listening on the
 *  endpoint for messages to service "PipeService" and a param of the Pipe ID.
 **/
class UnicastInputPipeImpl extends InputPipeImpl {
    
    /**
     *  Log4J Logger
     **/
    private final static Logger LOG = Logger.getLogger( UnicastInputPipeImpl.class.getName() );
    
    /**
     *  Constructor for the InputPipeImpl object
     *
     * @param  r         pipe resolver
     * @param  adv       pipe advertisement
     * @param  listener  listener to receive messages
     **/
    UnicastInputPipeImpl( PipeResolver r, PipeAdvertisement adv, PipeMsgListener listener ) throws IOException {
        
        super( r, adv, listener );
        
        r.pushSrdi( this, true );
    }
    
    /**
     *  {@inheritDoc}
     **/
    public synchronized void close() {
        
        if( closed ) {
            return;
        }
        
        PipeResolver resolver = (PipeResolver) registrar;
        
        // FIXME 20040529 bondolo This is overkill, it should be able to wait
        // until the deltas are pushed.
        
        resolver.pushSrdi( this, false );

        super.close();
    }
}