package org.apache.stratum.jcs.auxiliary.lateral.javagroups.utils;
/*
* 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.io.IOException;
import java.io.InterruptedIOException;
import org.javagroups.JChannel;
import org.javagroups.Channel;
import org.javagroups.blocks.RpcDispatcher;
import org.javagroups.blocks.GroupRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratum.jcs.auxiliary.lateral.behavior.ILateralCacheAttributes;
import org.apache.stratum.jcs.auxiliary.lateral.javagroups.behavior.IJGConstants;
import org.apache.stratum.jcs.auxiliary.lateral.javagroups.behavior.ILateralCacheJGListener;
/**
* Socket openere that will timeout on the initial connect rather than block
* forever. Technique from core java II.
*
* @author <a href="mailto:asmuts@yahoo.com">Aaron Smuts</a>
* @created January 15, 2002
* @version $Id: JGRpcOpener.java,v 1.4 2002/03/01 18:31:57 dlr Exp $
*/
public class JGRpcOpener implements Runnable
{
private final static Log log =
LogFactory.getLog( JGRpcOpener.class );
private String host;
private int port;
//private Socket socket;
private Channel rpcCh;
private RpcDispatcher disp;
private String groupName;
private ILateralCacheJGListener ilcl;
private ILateralCacheAttributes ilca;
/** Constructor for the SocketOpener object */
public static RpcDispatcher openSocket( ILateralCacheJGListener ilcl, ILateralCacheAttributes ilca, int timeOut, String groupName )
{
JGRpcOpener opener = new JGRpcOpener( ilcl, ilca, groupName );
Thread t = new Thread( opener );
t.start();
try
{
t.join( timeOut );
}
catch ( InterruptedException ire )
{
log.error(ire);
}
return opener.getSocket();
}
/**
* Constructor for the SocketOpener object
*
* @param host
* @param port
*/
public JGRpcOpener( ILateralCacheJGListener ilcl, ILateralCacheAttributes ilca, String groupName )
{
this.rpcCh = null;
this.ilcl = ilcl;
this.ilca = ilca;
this.groupName = groupName;
}
/** Main processing method for the SocketOpener object */
public void run()
{
try
{
String props="UDP(mcast_addr=" + ilca.getUdpMulticastAddr() + ";mcast_port=" + ilca.getUdpMulticastPort()+ "):PING:MERGE2(min_interval=5000;max_interval=10000):FD:STABLE:NAKACK:UNICAST:FLUSH:GMS:VIEW_ENFORCER:QUEUE";
rpcCh = new JChannel(props);
rpcCh.setOpt(rpcCh.LOCAL, Boolean.FALSE);
disp = new RpcDispatcher( rpcCh, null, null, ilcl );
rpcCh.connect(groupName);
}
catch ( Exception e )
{
log.error(e);
}
}
/** Gets the socket attribute of the SocketOpener object */
public RpcDispatcher getSocket()
{
return disp;
}
}