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Java > Open Source Codes > org > apache > mina > example > chat > client > ChatClientSupport


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.chat.client;
21
22 import java.net.SocketAddress JavaDoc;
23
24 import javax.net.ssl.SSLContext;
25
26 import org.apache.mina.common.ConnectFuture;
27 import org.apache.mina.common.IoHandler;
28 import org.apache.mina.common.IoSession;
29 import org.apache.mina.example.echoserver.ssl.BogusSSLContextFactory;
30 import org.apache.mina.filter.SSLFilter;
31 import org.apache.mina.transport.socket.nio.SocketConnector;
32 import org.apache.mina.transport.socket.nio.SocketConnectorConfig;
33
34 /**
35  * A simple chat client for a given user.
36  *
37  * @author The Apache Directory Project (mina-dev@directory.apache.org)
38  * @version $Rev$, $Date$
39  */
40 public class ChatClientSupport {
41     private final IoHandler handler;
42
43     private final String JavaDoc name;
44
45     private IoSession session;
46
47     public ChatClientSupport(String JavaDoc name, IoHandler handler) {
48         if (name == null) {
49             throw new IllegalArgumentException JavaDoc("Name can not be null");
50         }
51         this.name = name;
52         this.handler = handler;
53     }
54
55     public boolean connect(SocketConnector connector, SocketAddress JavaDoc address,
56             boolean useSsl) {
57         if (session != null && session.isConnected()) {
58             throw new IllegalStateException JavaDoc(
59                     "Already connected. Disconnect first.");
60         }
61
62         try {
63
64             SocketConnectorConfig config = new SocketConnectorConfig();
65             if (useSsl) {
66                 SSLContext sslContext = BogusSSLContextFactory
67                         .getInstance(false);
68                 SSLFilter sslFilter = new SSLFilter(sslContext);
69                 sslFilter.setUseClientMode(true);
70                 config.getFilterChain().addLast("sslFilter", sslFilter);
71             }
72
73             ConnectFuture future1 = connector.connect(address, handler, config);
74             future1.join();
75             if (!future1.isConnected()) {
76                 return false;
77             }
78             session = future1.getSession();
79             session.write("LOGIN " + name);
80             return true;
81         } catch (Exception JavaDoc e) {
82             e.printStackTrace();
83             return false;
84         }
85     }
86
87     public void broadcast(String JavaDoc message) {
88         session.write("BROADCAST " + message);
89     }
90
91     public void quit() {
92         if (session != null) {
93             if (session.isConnected()) {
94                 session.write("QUIT");
95                 // Wait until the chat ends.
96 session.getCloseFuture().join();
97             }
98             session.close();
99         }
100     }
101
102 }
103
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