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.step2.server;
21
22 import java.io.IOException;
23 import java.net.InetSocketAddress;
24 import java.util.concurrent.Executors;
25
26 import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
27 import org.apache.mina.example.imagine.step1.codec.ImageCodecFactory;
28 import org.apache.mina.example.imagine.step1.server.ImageServerIoHandler;
29 import org.apache.mina.filter.codec.ProtocolCodecFilter;
30 import org.apache.mina.filter.executor.ExecutorFilter;
31 import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
32
33 /**
34 * entry point for the server used in the tutorial on protocol codecs
35 *
36 * @author The Apache MINA Project (dev@mina.apache.org)
37 * @version $Rev$, $Date$
38 */
39
40 public class ImageServer {
41 public static final int PORT = 33789;
42
43 public static void main(String[] args) throws IOException {
44 // Create a class that handles sessions, incoming and outgoing data
45 ImageServerIoHandler handler = new ImageServerIoHandler();
46
47 // This socket acceptor will handle incoming connections
48 NioSocketAcceptor acceptor = new NioSocketAcceptor();
49
50 // add an IoFilter . This class is responsible for converting the incoming and
51 // outgoing raw data to ImageRequest and ImageResponse objects
52 acceptor.getFilterChain().addLast("protocol", new ProtocolCodecFilter(new ImageCodecFactory(false)));
53
54 // get a reference to the filter chain from the acceptor
55 DefaultIoFilterChainBuilder filterChainBuilder = acceptor.getFilterChain();
56
57 // add an ExecutorFilter to the filter chain. The preferred order is to put the executor filter
58 // after any protocol filters due to the fact that protocol codecs are generally CPU-bound
59 // which is the same as I/O filters.
60 filterChainBuilder.addLast("threadPool", new ExecutorFilter(Executors.newCachedThreadPool()));
61
62 // set this NioSocketAcceptor's handler to the ImageServerHandler
63 acceptor.setHandler(handler);
64
65 // Bind to the specified address. This kicks off the listening for
66 // incoming connections
67 acceptor.bind(new InetSocketAddress(PORT));
68 System.out.println("Step 2 server is listenig at port " + PORT);
69 }
70 }