/*
* 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.vfs;
import java.io.*;
import com.caucho.util.IoUtil;
import com.caucho.util.L10N;
/**
* Stream source for Hessian serialization of large data
*/
public class InputStreamSource extends StreamSource
{
private static final L10N L = new L10N(StreamSource.class);
private InputStream _is;
/**
* Constructor for subclasses.
*/
protected InputStreamSource()
{
}
/**
* Constructor for Hessian deserialization.
*/
public InputStreamSource(InputStream is)
{
_is = is;
}
/**
* Returns an input stream, freeing the results
*/
public InputStream getInputStream()
throws IOException
{
InputStream is = _is;
_is = null;
return is;
}
/**
* Returns an input stream, without freeing the results
*/
public InputStream openInputStream()
throws IOException
{
return getInputStream();
}
/**
* Close the stream.
*/
public void close()
{
InputStream is = _is;
_is = null;
IoUtil.close(is);
}
}