/*
    *  Licensed to the Apache Software Foundation (ASF) under one
    *  or more contributor license agreements.  See the NOTICE file
    *  distributed with this work for additional information
    *  regarding copyright ownership.  The ASF licenses this file
    *  to you under the Apache License, Version 2.0 (the
    *  "License"); you may not use this file except in compliance
    *  with the License.  You may obtain a copy of the License at
    *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   *
   */
  package org.apache.mina.transport.socket.nio;
  
  import java.net.InetSocketAddress;
  import java.util.Collection;
  import java.util.concurrent.CountDownLatch;
  
  import org.apache.mina.core.service.IoHandlerAdapter;
  import org.apache.mina.util.AvailablePortFinder;
  import org.junit.Test;
  
  public class SocketAcceptorTest {
  
      @Test
      public void testBindTwice() throws Exception {
          NioSocketAcceptor acceptor = new NioSocketAcceptor() {
  
              private int nRequests;
  
              private CountDownLatch secondRequestAdded = new CountDownLatch(1);
  
              @Override
              protected void bindRequestAdded() {
                  super.bindRequestAdded();
                  nRequests++;
                  if (nRequests == 2) {
                      secondRequestAdded.countDown();
                  }
              }
  
              @Override
              protected void handleUnbound(Collection<AcceptorOperationFuture> unboundFutures) throws Exception {
                  super.handleUnbound(unboundFutures);
                  if (!unboundFutures.isEmpty() && nRequests == 1) {
                      secondRequestAdded.await();
                  }
              }
          };
          acceptor.setCloseOnDeactivation(false);
          acceptor.setReuseAddress(true);
          acceptor.setHandler(new IoHandlerAdapter());
          try {
              int port = AvailablePortFinder.getNextAvailable(1025);
              InetSocketAddress address = new InetSocketAddress("127.0.0.1", port);
              acceptor.bind(address);
              acceptor.unbind(address);
              acceptor.bind(address);
              acceptor.unbind(address);
          } finally {
              acceptor.dispose();
          }
      }
  }