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zipstreamer.cpp

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//============================================================================= 
//
// XDFLengine library
//
//-----------------------------------------------------------------------------
//  ZipStreamer.CPP
//-----------------------------------------------------------------------------
//_____________________________________________________________________________
//
//  Copyright (C) 2003 Guillaume Baurand. All Rights Reserved.
//
//  This file is part of the XDFLengine project.
//
//  The XDFLengine 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.
//
//  This program 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 General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
//  USA.
//
//  For more information, 
//      contact  : guillaume@baurand.net 
//      or visit : http://xdflengine.sourceforge.net
//
//============================================================================= 

#   include "zipstreamer.hpp"
#   include "flow/buffers/filebuffer.hpp"
#   include "processor/xmlprocessor.hpp"
#   include "processor/xmlflowcontext.hpp"

BEGIN_XDFLENGINE_NS

//=============================================================================
//  CLASS ZipStreamer
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// CONSTRUCTOR & DESTRUCTOR

    //_____________________________________________________________________
    //  ZipStreamer
    //---------------------------------------------------------------------
    ZipStreamer::ZipStreamer( const XMLStreamerFactory* p_pParent, StreamerParams* p_pParameters, XMLFlowContext* p_pContext, XMLStreamConsumer* p_pOutput)
    :XMLStreamer( p_pParent, p_pParameters, p_pContext, p_pOutput)
    {
        m_pBufOut = 0;
        DEBUG_CREATE(ZipStreamer)
    }
    
    //_____________________________________________________________________
    //  ~ZipStreamer
    //---------------------------------------------------------------------     
    ZipStreamer::~ZipStreamer()
    {
        DEBUG_DEL(ZipStreamer)
        if(m_pBufOut) delete m_pBufOut;
    }
    
// STREAM   

    //_____________________________________________________________________
    //  INITSTREAM
    //---------------------------------------------------------------------
    bool ZipStreamer::initStream()
    {
        //---------------------------------------------------------------------
        const char*     l_pszFilePath;
        const char*     l_pszHeader;
        const char*     l_pszAction;
        //---------------------------------------------------------------------

        DEBUG_IN(ZipStreamer::initStream)

        // Get parameters
        l_pszFilePath = getParamValue(m_pParameters, ZIPSTREAMER_TARGET);

        if( strlen(l_pszFilePath)>0 )
        {

            l_pszHeader = getParamValue(m_pParameters, ZIPSTREAMER_HEADER,ZIPSTREAMER_HEADER_DEF);
            l_pszAction = getParamValue(m_pParameters, ZIPSTREAMER_ACTION, ZIPSTREAMER_ACTION_DEF);

            if ( strcmp( l_pszAction, ZIPSTREAMER_ACTION_DELETE) != 0 )
            {
                m_pBufOut = new ZipBuffer( l_pszFilePath, false);

                if ( strcmp( l_pszAction, ZIPSTREAMER_ACTION_FLUSH) == 0 ) m_pBufOut->flush();
                if( strlen(l_pszHeader)>0) (*m_pBufOut) << l_pszHeader << "\n";         
            }
            else
            {
                remove( l_pszFilePath);
            }
        }
        else
        {
            m_pBufOut = 0;
        }


        DEBUG_OUT(ZipStreamer::initStream)  

        return true;
    }

    //_____________________________________________________________________
    //  WRITEDATA
    //---------------------------------------------------------------------
    void ZipStreamer::writeData( const char*    p_pszData, unsigned int p_uiDataLen)
    {
        DEBUG_IN(ZipStreamer::writeData)

        if(m_pBufOut) m_pBufOut -> writeData( p_pszData, p_uiDataLen);
        if(m_pOutput) m_pOutput -> writeData( p_pszData, p_uiDataLen);

        DEBUG_OUT(ZipStreamer::writeData)
    }

    //_____________________________________________________________________
    //  COMMITSTREAM
    //---------------------------------------------------------------------
    bool ZipStreamer::commitStream(bool p_fFinal)
    {
        DEBUG_IN(ZipStreamer::commitStream)

        bool m_fOK;
        bool m_fOK2;
        
        if(m_pBufOut) m_fOK = m_pBufOut->commitStream(false);
        if(m_pOutput) m_fOK2 = m_pOutput->commitStream(false);

        DEBUG_OUT(ZipStreamer::commitStream)

        return m_fOK;

        
    }

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//=============================================================================


//=============================================================================
//  CLASS ZipStreamerFactory
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ZipStreamerFactory::ZipStreamerFactory()
    {
        logout.display_version( "ZLIB", "'zlib' general purpose compression library", ZLIB_VERSION, "Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler"); 
    }

    XMLStreamer* ZipStreamerFactory::getStreamer(
        StreamerParams*         p_pParameters, 
        XMLFlowContext* p_pStreamContext, 
        XMLStreamConsumer*      p_pStreamConsumer) const
    {
        DEBUG_FUNC(ZipStreamerFactory::getStreamer)
    
        
        return (XMLStreamer*) new ZipStreamer( this, p_pParameters, p_pStreamContext, p_pStreamConsumer);
    }

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//=============================================================================


END_XDFLENGINE_NS

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