1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.example.imagine.step3.server;
21
22 import java.lang.management.ManagementFactory;
23 import java.net.InetSocketAddress;
24 import java.util.concurrent.Executors;
25
26 import javax.management.MBeanServer;
27 import javax.management.ObjectName;
28
29 import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
30 import org.apache.mina.example.imagine.step1.codec.ImageCodecFactory;
31 import org.apache.mina.filter.codec.ProtocolCodecFilter;
32 import org.apache.mina.filter.executor.ExecutorFilter;
33 import org.apache.mina.integration.jmx.IoFilterMBean;
34 import org.apache.mina.integration.jmx.IoServiceMBean;
35 import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
36
37 /**
38 * entry point for the server used in the tutorial on protocol codecs
39 *
40 * @author The Apache MINA Project (dev@mina.apache.org)
41 * @version $Rev$, $Date$
42 */
43
44 public class ImageServer {
45 public static final int PORT = 33789;
46
47 public static void main(String[] args) throws Exception {
48
49 // create a JMX MBean Server server instance
50 MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
51
52 // Create a class that handles sessions, incoming and outgoing data. For
53 // this step, we will pass in the MBeanServer so that sessions can be
54 // registered on the MBeanServer.
55 ImageServerIoHandler handler = new ImageServerIoHandler( mBeanServer );
56
57 // This socket acceptor will handle incoming connections
58 NioSocketAcceptor acceptor = new NioSocketAcceptor();
59
60 // create a JMX-aware bean that wraps a MINA IoService object. In this
61 // case, a NioSocketAcceptor.
62 IoServiceMBean acceptorMBean = new IoServiceMBean( acceptor );
63
64 // create a JMX ObjectName. This has to be in a specific format.
65 ObjectName acceptorName = new ObjectName( acceptor.getClass().getPackage().getName() +
66 ":type=acceptor,name=" + acceptor.getClass().getSimpleName());
67
68 // register the bean on the MBeanServer. Without this line, no JMX will happen for
69 // this acceptor.
70 mBeanServer.registerMBean( acceptorMBean, acceptorName );
71
72 // add an IoFilter . This class is responsible for converting the incoming and
73 // outgoing raw data to ImageRequest and ImageResponse objects
74 ProtocolCodecFilter protocolFilter = new ProtocolCodecFilter(new ImageCodecFactory(false));
75
76 // create a JMX-aware bean that wraps a MINA IoFilter object. In this
77 // case, a ProtocolCodecFilter
78 IoFilterMBean protocolFilterMBean = new IoFilterMBean( protocolFilter );
79
80 // create a JMX ObjectName.
81 ObjectName protocolFilterName = new ObjectName( protocolFilter.getClass().getPackage().getName() +
82 ":type=protocolfilter,name=" + protocolFilter.getClass().getSimpleName() );
83
84 // register the bean on the MBeanServer. Without this line, no JMX will happen for
85 // this filter.
86 mBeanServer.registerMBean( protocolFilterMBean, protocolFilterName );
87
88 // add the protocolFilter to the acceptor, otherwise no filtering of data will happen
89 acceptor.getFilterChain().addLast("protocol", protocolFilter);
90
91 // get a reference to the filter chain from the acceptor
92 DefaultIoFilterChainBuilder filterChainBuilder = acceptor.getFilterChain();
93
94 // add an ExecutorFilter to the filter chain. The preferred order is to put the executor filter
95 // after any protocol filters due to the fact that protocol codecs are generally CPU-bound
96 // which is the same as I/O filters.
97 filterChainBuilder.addLast("threadPool", new ExecutorFilter(Executors.newCachedThreadPool()));
98
99 // set this NioSocketAcceptor's handler to the ImageServerHandler
100 acceptor.setHandler(handler);
101
102 // Bind to the specified address. This kicks off the listening for
103 // incoming connections
104 acceptor.bind(new InetSocketAddress(PORT));
105 System.out.println("Step 3 server is listenig at port " + PORT);
106 }
107 }