gzipstream.h revision 8a6cdb1b534b7b6101222bcf53d47465a0bd7a91
#ifndef __GZIPSTREAM_H__
#define __GZIPSTREAM_H__
/**
* Zlib-enabled input and output streams
*
* This provides a simple mechanism for reading and
* writing Gzip files. We use our own 'ZipTool' class
* to accomplish this, avoiding a zlib dependency.
*
* Authors:
* Bob Jamison
*
* Copyright (C) 2006 Bob Jamison
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "domstream.h"
namespace org
{
namespace w3c
{
namespace dom
{
namespace io
{
//#########################################################################
//# G Z I P I N P U T S T R E A M
//#########################################################################
/**
* This class is for deflating a gzip-compressed InputStream source
*
*/
class GzipInputStream : public BasicInputStream
{
public:
GzipInputStream(InputStream &sourceStream);
virtual ~GzipInputStream();
virtual int available();
virtual void close();
virtual int get();
private:
bool load();
bool loaded;
std::vector<unsigned char> buffer;
unsigned int bufPos;
}; // class GzipInputStream
//#########################################################################
//# G Z I P O U T P U T S T R E A M
//#########################################################################
/**
* This class is for gzip-compressing data going to the
* destination OutputStream
*
*/
class GzipOutputStream : public BasicOutputStream
{
public:
GzipOutputStream(OutputStream &destinationStream);
virtual ~GzipOutputStream();
virtual void close();
virtual void flush();
virtual int put(XMLCh ch);
private:
std::vector<unsigned char> buffer;
}; // class GzipOutputStream
} // namespace io
} // namespace dom
} // namespace w3c
} // namespace org
#endif /* __GZIPSTREAM_H__ */