/* DTPOutputStream.java --
   Copyright (C) 2003, 2004  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath 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, or (at your option)
any later version.
 
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WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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along with GNU Classpath; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
conditions of the GNU General Public License cover the whole
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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terms of your choice, provided that you also meet, for each linked
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package gnu.java.net.protocol.ftp;

import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * An output stream that notifies a DTP on end of stream.
 *
 * @author Chris Burdess (dog@gnu.org)
 */
abstract class DTPOutputStream extends FilterOutputStream
{

  DTP dtp;
  boolean transferComplete;

  /**
   * Constructor.
   * @param dtp the controlling data transfer process
   * @param out the socket output stream
   */
  DTPOutputStream (DTP dtp, OutputStream out)
    {
      super (out);
      this.dtp = dtp;
      transferComplete = false;
    }

  /**
   * Tells this stream whether transfer has completed or not.
   * @param flag true if the process has completed, false otherwise
   */
  void setTransferComplete (boolean flag)
    {
      transferComplete = flag;
    }

  /**
   * Notifies the controlling DTP that this stream has been terminated.
   */
  public void close () throws IOException
    {
      dtp.transferComplete ();
    }

}