/*
 * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.network.listen;

import com.caucho.vfs.VfsStream;

import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;

/**
 * A Connection based on streams.  Stream connection is primarily used
 * for testing.
 */
public class StreamSocketLink extends AbstractSocketLink {
  private int _id = 1;
  private InetAddress _localAddress;
  private int _localPort;
  private String _virtualHost;
  private InetAddress _remoteAddress;
  private int _remotePort;
  private boolean _isSecure;
  private boolean _isKeepalive = true;
  
  private StreamAsyncController _asyncController;

  public StreamSocketLink()
  {
  }

  public StreamSocketLink(InputStream is, OutputStream os)
  {
    setStream(is, os);
  }

  public int getId()
  {
    return _id;
  }

  public InetAddress getLocalAddress()
  {
    return _localAddress;
  }

  public int getLocalPort()
  {
    return _localPort;
  }

  public boolean isPortActive()
  {
    return true;
  }

  public InetAddress getRemoteAddress()
  {
    return _remoteAddress;
  }

  public int getRemotePort()
  {
    return _remotePort;
  }

  public void setRemotePort(int port)
  {
    _remotePort = port;
  }

  public String getVirtualHost()
  {
    return _virtualHost;
  }

  public void setVirtualHost(String virtualHost)
  {
    _virtualHost = virtualHost;
  }

  public void setStream(InputStream is, OutputStream os)
  {
    VfsStream _vfsStream = new VfsStream(is, os);
    getWriteStream().init(_vfsStream);
    getReadStream().init(_vfsStream, getWriteStream());
    
    _isKeepalive = true;
  }

  public void setSecure(boolean isSecure)
  {
    _isSecure = isSecure;
  }

  public boolean isSecure()
  {
    return _isSecure;
  }

  @Override
  public boolean isKeepaliveAllocated()
  {
    return _isKeepalive;
  }

  /*
  @Override
  public boolean toKeepalive()
  {
    return _isKeepalive;
  }
  */

  @Override
  public void killKeepalive(String reason)
  {
    _isKeepalive = false;
  }
  
  public void clientDisconnect()
  {
  }

  public void setLocalAddress(InetAddress addr)
  {
    _localAddress = addr;
  }

  public void setLocalPort(int port)
  {
    _localPort = port;
  }

  public void setRemoteAddress(InetAddress addr)
  {
    _remoteAddress = addr;
  }

  @Override
  public AsyncController toComet(SocketLinkCometListener handler)
  {
    StreamAsyncController asyncController = _asyncController;
    
    if (asyncController == null)
      asyncController = _asyncController = new StreamAsyncController(handler);

    return asyncController;
  }
  
  public void onRequestComplete()
  {
    StreamAsyncController asyncController = _asyncController;
    _asyncController = null;

    if (asyncController != null)
      asyncController.onClose();
  }
  
  class StreamAsyncController extends AsyncController {
    private SocketLinkCometListener _handler;
    
    StreamAsyncController(SocketLinkCometListener handler)
    {
      _handler = handler;
    }
    
    @Override
    public void onClose()
    {
      super.onClose();
      
      _handler.onComplete();
    }

    public String toString()
    {
      return getClass().getSimpleName() + "[]";
    }
  }

  /* (non-Javadoc)
   * @see com.caucho.network.listen.SocketLink#startDuplex(com.caucho.network.listen.DuplexHandler)
   */
  @Override
  public SocketLinkDuplexController startDuplex(SocketLinkDuplexListener handler)
  {
    throw new UnsupportedOperationException(getClass().getName());
  }
}