// ========================================================================
   // Copyright (c) 2011 Intalio, Inc.
   // ------------------------------------------------------------------------
   // All rights reserved. This program and the accompanying materials
   // are made available under the terms of the Eclipse Public License v1.0
   // and Apache License v2.0 which accompanies this distribution.
   // The Eclipse Public License is available at
   // http://www.eclipse.org/legal/epl-v10.html
   // The Apache License v2.0 is available at
  // http://www.opensource.org/licenses/apache2.0.php
  // You may elect to redistribute this code under either of these licenses.
  // ========================================================================
  
  package org.eclipse.jetty.server.nio;
  
  import java.io.IOException;
  import java.nio.channels.SelectionKey;
  import java.nio.channels.SocketChannel;
  import java.util.ConcurrentModificationException;
  import java.util.List;
  import java.util.concurrent.CopyOnWriteArrayList;
  
  import org.eclipse.jetty.io.NetworkTrafficListener;
  import org.eclipse.jetty.io.nio.NetworkTrafficSelectChannelEndPoint;
  import org.eclipse.jetty.io.nio.SelectChannelEndPoint;
  import org.eclipse.jetty.io.nio.SelectorManager;
  
  /**
   * <p>A specialized version of {@link SelectChannelConnector} that supports {@link NetworkTrafficListener}s.</p>
   * <p>{@link NetworkTrafficListener}s can be added and removed dynamically before and after this connector has
   * been started without causing {@link ConcurrentModificationException}s.</p>
   */
  public class NetworkTrafficSelectChannelConnector extends SelectChannelConnector
  {
      private final List<NetworkTrafficListener> listeners = new CopyOnWriteArrayList<NetworkTrafficListener>();
  
      /**
       * @param listener the listener to add
       */
      public void addNetworkTrafficListener(NetworkTrafficListener listener)
      {
          listeners.add(listener);
      }
  
      /**
       * @param listener the listener to remove
       */
      public void removeNetworkTrafficListener(NetworkTrafficListener listener)
      {
          listeners.remove(listener);
      }
  
      @Override
      protected SelectChannelEndPoint newEndPoint(SocketChannel channel, SelectorManager.SelectSet selectSet, SelectionKey key) throws IOException
      {
          NetworkTrafficSelectChannelEndPoint endPoint = new NetworkTrafficSelectChannelEndPoint(channel, selectSet, key, _maxIdleTime, listeners);
          endPoint.notifyOpened();
          return endPoint;
      }
  
      @Override
      protected void endPointClosed(SelectChannelEndPoint endpoint)
      {
          super.endPointClosed(endpoint);
          ((NetworkTrafficSelectChannelEndPoint)endpoint).notifyClosed();
      }
  }