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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.transport.nio;
    21
    22  import static org.junit.Assert.assertTrue;
    23
    24  import java.io.IOException;
    25  import java.net.InetSocketAddress;
    26  import java.util.concurrent.CountDownLatch;
    27  import java.util.concurrent.ExecutionException;
    28  import java.util.concurrent.TimeUnit;
    29
    30  import org.apache.mina.api.AbstractIoHandler;
    31  import org.apache.mina.api.IoSession;
    32  import org.apache.mina.transport.nio.NioTcpClient;
    33  import org.apache.mina.transport.nio.NioTcpServer;
    34  import org.junit.Test;
    35  import org.slf4j.Logger;
    36  import org.slf4j.LoggerFactory;
    37
    38  /**
    39   * This class test the resource management of {@link NioTcpClient}.
    40   *
    41   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    42   */
    43  public class NioTcpClientReleaseTest {
    44
    45      private static final Logger LOG = LoggerFactory.getLogger(NioTcpClientReleaseTest.class);
    46
    47      private static final int CLIENT_COUNT = 10;
    48
    49      private static final int WAIT_TIME = 30000;
    50
    51      private final CountDownLatch closedLatch = new CountDownLatch(CLIENT_COUNT);
    52
    53      /**
    54       * Create an old IO server and use a bunch of MINA client on it. Test if the events occurs correctly in the
    55       * different IoFilters.
    56       */
    57      @Test
    58      public void checkSessionsAreClosedWhenClientIsDisconnected() throws IOException, InterruptedException,
    59              ExecutionException {
    60
    61          NioTcpServer server = new NioTcpServer();
    62          server.setIoHandler(new Handler());
    63          server.bind(0);
    64
    65          NioTcpClient client = new NioTcpClient();
    66          client.setIoHandler(new AbstractIoHandler() {
    67          });
    68          for (int i = 0; i < CLIENT_COUNT; ++i) {
    69              client.connect(new InetSocketAddress(server.getServerSocketChannel().socket().getLocalPort())).get();
    70          }
    71          client.disconnect();
    72          assertTrue(closedLatch.await(WAIT_TIME, TimeUnit.MILLISECONDS));
    73      }
    74
    75      private class Handler extends AbstractIoHandler {
    76
    77          @Override
    78          public void sessionClosed(final IoSession session) {
    79              LOG.info("** session closed");
    80              closedLatch.countDown();
    81          }
    82      }
    83  }