/*
* Copyright (c) 1998-2008 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 SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.vfs;
import java.io.IOException;
import java.net.SocketException;
import java.util.Iterator;
/**
* Facade to HttpStream to properly handle the close.
*/
public class HttpStreamWrapper extends StreamImpl
{
private HttpStream _stream;
/**
* Create a new HTTP stream.
*/
HttpStreamWrapper(HttpStream stream)
throws IOException
{
_stream = stream;
}
/**
* Set if this should be an SSL connection.
*/
public void setSSL(boolean isSSL)
{
_stream.setSSL(isSSL);
}
/**
* Set if this should be an SSL connection.
*/
public boolean isSSL()
{
return _stream.isSSL();
}
/**
* Sets the method
*/
public void setMethod(String method)
{
_stream.setMethod(method);
}
/**
* Sets true if we're only interested in the head.
*/
public void setHead(boolean isHead)
{
_stream.setHead(isHead);
}
/**
* Returns the stream's host.
*/
public String getHost()
{
return _stream.getHost();
}
/**
* Returns the stream's port.
*/
public int getPort()
{
return _stream.getPort();
}
/**
* Sets the http version.
*/
public void setHttp10()
{
_stream.setHttp10();
}
/**
* Sets the http version.
*/
public void setHttp11()
{
_stream.setHttp11();
}
/**
* Returns a header from the response returned from the HTTP server.
*
* @param name name of the header
* @return the header value.
*/
public Object getAttribute(String name)
throws IOException
{
if (_stream != null)
return _stream.getAttribute(name);
else
return null;
}
/**
* Returns an iterator of the returned header names.
*/
public Iterator getAttributeNames()
throws IOException
{
if (_stream != null)
return _stream.getAttributeNames();
else
return null;
}
/**
* Sets a header for the request.
*/
public void setAttribute(String name, Object value)
{
if (_stream != null)
_stream.setAttribute(name, value);
}
/**
* Remove a header for the request.
*/
public void removeAttribute(String name)
{
if (_stream != null)
_stream.removeAttribute(name);
}
/**
* Sets the timeout.
*/
public void setSocketTimeout(long timeout)
throws SocketException
{
if (_stream != null)
_stream.setSocketTimeout(timeout);
}
/**
* The stream is always writable (?)
*/
public boolean canWrite()
{
if (_stream != null)
return _stream.canWrite();
else
return false;
}
/**
* Writes a buffer to the underlying stream.
*
* @param buffer the byte array to write.
* @param offset the offset into the byte array.
* @param length the number of bytes to write.
* @param isEnd true when the write is flushing a close.
*/
public void write(byte []buf, int offset, int length, boolean isEnd)
throws IOException
{
if (_stream != null)
_stream.write(buf, offset, length, isEnd);
}
/**
* The stream is readable.
*/
public boolean canRead()
{
if (_stream != null)
return _stream.canRead();
else
return false;
}
/**
* Read data from the connection. If the request hasn't yet been sent
* to the server, send it.
*/
public int read(byte []buf, int offset, int length) throws IOException
{
if (_stream != null)
return _stream.read(buf, offset, length);
else
return -1;
}
/**
* Returns the bytes still available.
*/
public int getAvailable() throws IOException
{
if (_stream != null)
return _stream.getAvailable();
else
return -1;
}
/**
* Close the connection.
*/
public void close() throws IOException
{
HttpStream stream = _stream;
_stream = null;
if (stream != null)
stream.close();
}
}