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saxstreamer.cpp

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//============================================================================= 
//
// XDFLengine library
//
//-----------------------------------------------------------------------------
//  SaxStreamer.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 "flow/consumers/streamsax2parser.hpp"
#   include "processor/xmlflowcontext.hpp"
#   include "saxstreamer.hpp"


BEGIN_XDFLENGINE_NS

//=============================================================================
//  CLASS SaxStreamer
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// CONSTRUCTOR & DESTRUCTOR

    //_____________________________________________________________________
    //  SaxStreamer
    //---------------------------------------------------------------------
    SaxStreamer::SaxStreamer( const XMLStreamerFactory* p_pParent, StreamerParams* p_pParameters, XMLFlowContext* p_pContext, XMLStreamConsumer* p_pOutput, ContentHandler* p_pHandler, bool p_fCopyStreamToOutput)
    :XMLStreamer( p_pParent, p_pParameters, p_pContext, p_pOutput)
    {
        m_pHandler = p_pHandler;
        m_fCopyStreamToOutput=p_fCopyStreamToOutput;
        m_fDataPresent = false;

        DEBUG_CREATE(SaxStreamer)
    }
    
    //_____________________________________________________________________
    //  ~SaxStreamer
    //---------------------------------------------------------------------     
    SaxStreamer::~SaxStreamer()
    {
        DEBUG_DEL(SaxStreamer)
        delete m_pStreamParser;
        delete m_pHandler;
        delete m_pErrorReporter;
    }
    
// STREAM   

    //_____________________________________________________________________
    //  INITSTREAM
    //---------------------------------------------------------------------
    bool SaxStreamer::initStream()
    {
        DEBUG_IN(SaxStreamer::initStream)
        
        m_pErrorReporter = new XDFLSaxErrorReporter("SaxStreamer");
        m_pStreamParser = new StreamSAX2Parser( m_pHandler, m_pErrorReporter);

        DEBUG_OUT(SaxStreamer::initStream)
        return true;
    }

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


        m_fDataPresent = true;
        m_pStreamParser -> writeData( p_pszData, p_uiDataLen);
        if(m_fCopyStreamToOutput) m_pOutput->writeData( p_pszData, p_uiDataLen);

        DEBUG_OUT(SaxStreamer::writeData)
    }

    //_____________________________________________________________________
    //  COMMITSTREAM
    //---------------------------------------------------------------------
    bool SaxStreamer::commitStream(bool p_fFinal)
    {
        bool m_fOK;

        DEBUG_IN(SaxStreamer::commitStream)

        if(p_fFinal)
        {
            //logout << "*";
        }

        if(m_fDataPresent) m_fOK = m_pStreamParser -> commitStream( p_fFinal);
        else 
        {
            m_pHandler->startDocument();
            m_pHandler->endDocument();
        }

        if(m_fCopyStreamToOutput) m_fOK = m_fOK && m_pOutput->commitStream( false);


        DEBUG_OUT(SaxStreamer::commitStream)
        return m_fOK;

        
    }


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


END_XDFLENGINE_NS

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