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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.sumup;
    21
    22  import java.net.InetSocketAddress;
    23
    24  import org.apache.mina.common.ConnectFuture;
    25  import org.apache.mina.common.IoSession;
    26  import org.apache.mina.common.RuntimeIOException;
    27  import org.apache.mina.example.sumup.codec.SumUpProtocolCodecFactory;
    28  import org.apache.mina.filter.LoggingFilter;
    29  import org.apache.mina.filter.codec.ProtocolCodecFilter;
    30  import org.apache.mina.filter.codec.serialization.ObjectSerializationCodecFactory;
    31  import org.apache.mina.transport.socket.nio.SocketConnector;
    32  import org.apache.mina.transport.socket.nio.SocketConnectorConfig;
    33
    34  /**
    35   * (<strong>Entry Point</strong>) Starts SumUp client.
    36   *
    37   * @author The Apache Directory Project (mina-dev@directory.apache.org)
    38   * @version $Rev: 555855 $, $Date: 2007-07-13 05:19:00 +0200 (Fri, 13 Jul 2007) $
    39   */
    40  public class Client {
    41      private static final String HOSTNAME = "localhost";
    42
    43      private static final int PORT = 8080;
    44
    45      private static final int CONNECT_TIMEOUT = 30; // seconds
    46
    47      // Set this to false to use object serialization instead of custom codec.
    48      private static final boolean USE_CUSTOM_CODEC = true;
    49
    50      public static void main(String[] args) throws Throwable {
    51          if (args.length == 0) {
    52              System.out.println("Please specify the list of any integers");
    53              return;
    54          }
    55
    56          // prepare values to sum up
    57          int[] values = new int[args.length];
    58          for (int i = 0; i < args.length; i++) {
    59              values[i] = Integer.parseInt(args[i]);
    60          }
    61
    62          SocketConnector connector = new SocketConnector();
    63
    64          // Change the worker timeout to 1 second to make the I/O thread quit soon
    65          // when there's no connection to manage.
    66          connector.setWorkerTimeout(1);
    67
    68          // Configure the service.
    69          SocketConnectorConfig cfg = new SocketConnectorConfig();
    70          cfg.setConnectTimeout(CONNECT_TIMEOUT);
    71          if (USE_CUSTOM_CODEC) {
    72              cfg.getFilterChain().addLast(
    73                      "codec",
    74                      new ProtocolCodecFilter(
    75                              new SumUpProtocolCodecFactory(false)));
    76          } else {
    77              cfg.getFilterChain().addLast(
    78                      "codec",
    79                      new ProtocolCodecFilter(
    80                              new ObjectSerializationCodecFactory()));
    81          }
    82          cfg.getFilterChain().addLast("logger", new LoggingFilter());
    83
    84          IoSession session;
    85          for (;;) {
    86              try {
    87                  ConnectFuture future = connector.connect(new InetSocketAddress(
    88                          HOSTNAME, PORT), new ClientSessionHandler(values), cfg);
    89
    90                  future.join();
    91                  session = future.getSession();
    92                  break;
    93              } catch (RuntimeIOException e) {
    94                  System.err.println("Failed to connect.");
    95                  e.printStackTrace();
    96                  Thread.sleep(5000);
    97              }
    98          }
    99
    100         // wait until the summation is done
    101         session.getCloseFuture().join();
    102     }
    103 }