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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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package org.apache.mina.example.imagine.step3.server;
import java.lang.management.ManagementFactory;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.example.imagine.step1.codec.ImageCodecFactory;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.executor.ExecutorFilter;
import org.apache.mina.integration.jmx.IoFilterMBean;
import org.apache.mina.integration.jmx.IoServiceMBean;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
/**
* entry point for the server used in the tutorial on protocol codecs
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev$, $Date$
*/
public class ImageServer {
public static final int PORT = 33789;
public static void main(String[] args) throws Exception {
// create a JMX MBean Server server instance
MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
// Create a class that handles sessions, incoming and outgoing data. For
// this step, we will pass in the MBeanServer so that sessions can be
// registered on the MBeanServer.
ImageServerIoHandler handler = new ImageServerIoHandler( mBeanServer );
// This socket acceptor will handle incoming connections
NioSocketAcceptor acceptor = new NioSocketAcceptor();
// create a JMX-aware bean that wraps a MINA IoService object. In this
// case, a NioSocketAcceptor.
IoServiceMBean acceptorMBean = new IoServiceMBean( acceptor );
// create a JMX ObjectName. This has to be in a specific format.
ObjectName acceptorName = new ObjectName( acceptor.getClass().getPackage().getName() +
":type=acceptor,name=" + acceptor.getClass().getSimpleName());
// register the bean on the MBeanServer. Without this line, no JMX will happen for
// this acceptor.
mBeanServer.registerMBean( acceptorMBean, acceptorName );
// add an IoFilter . This class is responsible for converting the incoming and
// outgoing raw data to ImageRequest and ImageResponse objects
ProtocolCodecFilter protocolFilter = new ProtocolCodecFilter(new ImageCodecFactory(false));
// create a JMX-aware bean that wraps a MINA IoFilter object. In this
// case, a ProtocolCodecFilter
IoFilterMBean protocolFilterMBean = new IoFilterMBean( protocolFilter );
// create a JMX ObjectName.
ObjectName protocolFilterName = new ObjectName( protocolFilter.getClass().getPackage().getName() +
":type=protocolfilter,name=" + protocolFilter.getClass().getSimpleName() );
// register the bean on the MBeanServer. Without this line, no JMX will happen for
// this filter.
mBeanServer.registerMBean( protocolFilterMBean, protocolFilterName );
// add the protocolFilter to the acceptor, otherwise no filtering of data will happen
acceptor.getFilterChain().addLast("protocol", protocolFilter);
// get a reference to the filter chain from the acceptor
DefaultIoFilterChainBuilder filterChainBuilder = acceptor.getFilterChain();
// add an ExecutorFilter to the filter chain. The preferred order is to put the executor filter
// after any protocol filters due to the fact that protocol codecs are generally CPU-bound
// which is the same as I/O filters.
filterChainBuilder.addLast("threadPool", new ExecutorFilter(Executors.newCachedThreadPool()));
// set this NioSocketAcceptor's handler to the ImageServerHandler
acceptor.setHandler(handler);
// Bind to the specified address. This kicks off the listening for
// incoming connections
acceptor.bind(new InetSocketAddress(PORT));
System.out.println("Step 3 server is listenig at port " + PORT);
}
}