    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.transport.socket.nio;
    21
    22  import java.net.InetSocketAddress;
    23
    24  import junit.framework.Assert;
    25  import junit.framework.TestCase;
    26
    27  import org.apache.mina.common.ByteBuffer;
    28  import org.apache.mina.common.ConnectFuture;
    29  import org.apache.mina.common.IoAcceptor;
    30  import org.apache.mina.common.IoConnector;
    31  import org.apache.mina.common.IoFilter;
    32  import org.apache.mina.common.IoFilterAdapter;
    33  import org.apache.mina.common.IoHandler;
    34  import org.apache.mina.common.IoHandlerAdapter;
    35  import org.apache.mina.common.IoSession;
    36  import org.apache.mina.common.WriteFuture;
    37  import org.apache.mina.util.AvailablePortFinder;
    38
    39  /**
    40   * Tests if {@link DatagramAcceptor} session is configured properly.
    41   *
    42   * @author The Apache Directory Project (mina-dev@directory.apache.org)
    43   * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
    44   */
    45  public class DatagramConfigTest extends TestCase {
    46      private final IoAcceptor acceptor = new DatagramAcceptor();
    47
    48      private final IoConnector connector = new DatagramConnector();
    49
    50      private String result;
    51
    52      public DatagramConfigTest() {
    53      }
    54
    55      protected void setUp() throws Exception {
    56          result = "";
    57      }
    58
    59      public void testAcceptorFilterChain() throws Exception {
    60          int port = AvailablePortFinder.getNextAvailable(1024);
    61          DatagramAcceptorConfig expectedConfig = new DatagramAcceptorConfig();
    62          IoFilter mockFilter = new MockFilter();
    63          IoHandler mockHandler = new MockHandler();
    64
    65          expectedConfig.getFilterChain().addLast("mock", mockFilter);
    66          acceptor.bind(new InetSocketAddress(port), mockHandler, expectedConfig);
    67
    68          try {
    69              ConnectFuture future = connector.connect(new InetSocketAddress(
    70                      "localhost", port), new IoHandlerAdapter());
    71              future.join();
    72
    73              WriteFuture writeFuture = future.getSession().write(
    74                      ByteBuffer.allocate(16).putInt(0).flip());
    75              writeFuture.join();
    76              Assert.assertTrue(writeFuture.isWritten());
    77
    78              future.getSession().close();
    79
    80              for (int i = 0; i < 30; i++) {
    81                  if (result.length() == 2) {
    82                      break;
    83                  }
    84                  Thread.sleep(100);
    85              }
    86
    87              Assert.assertEquals("FH", result);
    88          } finally {
    89              acceptor.unbind(new InetSocketAddress(port));
    90          }
    91      }
    92
    93      private class MockFilter extends IoFilterAdapter {
    94
    95          public void messageReceived(NextFilter nextFilter, IoSession session,
    96                  Object message) throws Exception {
    97              result += "F";
    98              nextFilter.messageReceived(session, message);
    99          }
    100
    101     }
    102
    103     private class MockHandler extends IoHandlerAdapter {
    104         public void messageReceived(IoSession session, Object message)
    105                 throws Exception {
    106             result += "H";
    107         }
    108     }
    109 }