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    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;
    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 name;
    44
    45      private IoSession session;
    46
    47      public ChatClientSupport(String name, IoHandler handler) {
    48          if (name == null) {
    49              throw new IllegalArgumentException("Name can not be null");
    50          }
    51          this.name = name;
    52          this.handler = handler;
    53      }
    54
    55      public boolean connect(SocketConnector connector, SocketAddress address,
    56              boolean useSsl) {
    57          if (session != null && session.isConnected()) {
    58              throw new IllegalStateException(
    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 e) {
    82              e.printStackTrace();
    83              return false;
    84          }
    85      }
    86
    87      public void broadcast(String 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 }