Package org.jbpm.task.service.mina

Source Code of org.jbpm.task.service.mina.BaseMinaTaskServer

/**
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package org.jbpm.task.service.mina;

import java.io.IOException;
import java.net.InetSocketAddress;

import org.apache.mina.core.service.IoAcceptor;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.serialization.ObjectSerializationCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
import org.jbpm.task.service.TaskServer;

public class BaseMinaTaskServer extends TaskServer {
    private final int port;

    IoHandlerAdapter  handler;

    IoAcceptor        acceptor;

    volatile boolean  running;
   
    //the local interface to be used. Default is loopback. To bind all
    // interfaces, use 0.0.0.0
    String localInterface;

    public BaseMinaTaskServer(IoHandlerAdapter handler,
                          int port) {
        this(handler, port, "127.0.0.1");
    }
   
  public BaseMinaTaskServer(IoHandlerAdapter handler, int port,
          String localInterface) {
    this.handler = handler;
    this.port = port;
    this.localInterface = localInterface;
  }

    public void run() {
        try {
            start();
            while ( running ) {
                Thread.sleep( 100 );
            }
        } catch ( Exception e ) {
            throw new RuntimeException( "Server Exception with class " + getClass() + " using port " + port,
                                        e );
        }
    }

    public void start() throws IOException {
       
        acceptor = new NioSocketAcceptor();

        acceptor.getFilterChain().addLast( "logger",
                                           new LoggingFilter() );
        acceptor.getFilterChain().addLast( "codec",
                                           new ProtocolCodecFilter( new ObjectSerializationCodecFactory() ) );

        acceptor.setHandler( handler );
        acceptor.getSessionConfig().setReadBufferSize( 2048 );
        acceptor.getSessionConfig().setIdleTime( IdleStatus.BOTH_IDLE, 10 );
        acceptor.bind( new InetSocketAddress( localInterface, port ) );
        running = true;
    }
   
    public IoAcceptor getIoAcceptor() {
        return acceptor;
    }

    public void stop() {
      running = false;
        acceptor.dispose();
    }
   
    public boolean isRunning() {
    return running;
  }
   
}
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