package org.apache.stratum.jcs.auxiliary.lateral.javagroups;
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. 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 acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Velocity", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* 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 THE APACHE SOFTWARE FOUNDATION 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 the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.io.IOException;
import org.apache.stratum.jcs.auxiliary.lateral.behavior.ILateralCacheAttributes;
import org.apache.stratum.jcs.auxiliary.lateral.javagroups.behavior.ILateralCacheJGListener;
import org.apache.stratum.jcs.auxiliary.lateral.javagroups.behavior.IJGConstants;
import org.apache.stratum.jcs.auxiliary.lateral.javagroups.utils.JGSocketOpener;
import org.apache.stratum.jcs.auxiliary.lateral.javagroups.utils.JGRpcOpener;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.javagroups.JChannel;
import org.javagroups.Channel;
import org.javagroups.Message;
import org.javagroups.blocks.RpcDispatcher;
import org.javagroups.ChannelNotConnectedException;
/**
* Processes commands from the server socket.
*
* @author <a href="mailto:asmuts@yahoo.com">Aaron Smuts</a>
* @created January 15, 2002
* @version $Id: LateralJGReceiver.java,v 1.3 2002/03/01 18:31:57 dlr Exp $
*/
public class LateralJGReceiver implements IJGConstants, Runnable
{
private final static Log log =
LogFactory.getLog( LateralJGReceiver.class );
private int port;
private ILateralCacheJGListener ilcl;
private ILateralCacheAttributes ilca;
/**
* How long the server will block on an accept(). 0 is infinte.
*/
private final static int sTimeOut = 5000;
/**
* Main processing method for the LateralJGReceiver object
*/
public void run()
{
try
{
if ( log.isDebugEnabled() )
{
log.debug( "Listening on port " + port );
}
JGConnectionHolder holder = JGConnectionHolder.getInstance(ilca);
Channel javagroups = holder.getChannel();
RpcDispatcher disp = holder.getDispatcher();
if ( javagroups == null )
{
log.error( "JavaGroups is null" );
throw new IOException( "javagroups is null" );
}
while ( true )
{
if ( log.isDebugEnabled() )
{
log.debug( "Wating for messages." );
}
Message mes = null;
try
{
Object obj = javagroups.receive( 0 );
if ( obj != null && obj instanceof org.javagroups.Message )
{
mes = ( Message ) obj;
log.info( "Starting new socket node." );
new Thread( new LateralJGReceiverConnection( mes, ilcl ) ).start();
}
else
{
if ( log.isDebugEnabled() )
{
log.debug( obj );
}
}
}
catch ( ChannelNotConnectedException cnce )
{
log.warn(cnce);
// this will cycle unitl connected and eat up the processor
// need to throw out and recover
// seems to periodically require about 50 tries.
}
catch ( Exception e )
{
log.error( "problem receiving", e );
}
//InetAddress inetAddress = javagroups..getInetAddress();
//if ( log.isDebugEnabled() )
//{
// log.debug( "Connected to client at " + inetAddress );
//}
//log.info( "Connected to client at " + inetAddress );
}
}
catch ( Exception e )
{
log.error( "Major intialization problem", e );
}
}
/**
* Constructor for the LateralJGReceiver object
*
* @param lca
* @param ilcl
*/
public LateralJGReceiver( ILateralCacheAttributes ilca, ILateralCacheJGListener ilcl )
{
this.port = ilca.getTcpListenerPort();
this.ilcl = ilcl;
this.ilca = ilca;
if ( log.isDebugEnabled() )
{
log.debug( "ilcl = " + ilcl );
}
}
}