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namedbuffergetstreamer.cpp

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//============================================================================= 
//
// XDFLengine library
//
//-----------------------------------------------------------------------------
//  NamedBufferGetStreamer.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 "namedbuffergetstreamer.hpp"
#   include "processor/xmlflowcontext.hpp"

BEGIN_XDFLENGINE_NS

//=============================================================================
//  CLASS NamedBufferGetStreamer
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    //_____________________________________________________________________
    //  NamedBufferGetStreamer
    //---------------------------------------------------------------------
    NamedBufferGetStreamer::NamedBufferGetStreamer( const XMLStreamerFactory* p_pParent, StreamerParams* p_pParameters, XMLFlowContext* p_pContext, XMLStreamConsumer* p_pOutput)
    :XMLStreamer( p_pParent, p_pParameters, p_pContext, p_pOutput)
    {
        DEBUG_CREATE(NamedBufferGetStreamer)
    }
    
    //_____________________________________________________________________
    //  ~NamedBufferGetStreamer
    //---------------------------------------------------------------------     
    NamedBufferGetStreamer::~NamedBufferGetStreamer()
    {
        DEBUG_DEL(NamedBufferGetStreamer)
    }

    //_____________________________________________________________________
    //  INITSTREAM
    //---------------------------------------------------------------------
    bool NamedBufferGetStreamer::initStream()
    {
        DEBUG_FUNC(NamedBufferGetStreamer::initStream)
        return true;
    }

    //_____________________________________________________________________
    //  WRITEDATA
    //---------------------------------------------------------------------
    void NamedBufferGetStreamer::writeData( const char* p_pszData, unsigned int p_uiDataLen)
    {
        DEBUG_FUNC(NamedBufferGetStreamer::writeData)
    }

    //_____________________________________________________________________
    //  COMMITSTREAM
    //---------------------------------------------------------------------
    bool NamedBufferGetStreamer::commitStream(bool p_fFinal)
    {
        //-----------------------------------------------------------------
        const char*         l_pszBufferName;
        XMLStreamBuffer*    l_pNamedBuffer;
        //-----------------------------------------------------------------

        DEBUG_FUNC(NamedBufferGetStreamer::commitStream)
        //logout << "buf get...\n";
        if(p_fFinal)
        {
            l_pszBufferName = getParamValue( m_pParameters, NAMEDBUFGETSTREAMER_NAME, "");
            if(strlen(l_pszBufferName)>0)
            {
                //logout << "buffer is " << l_pszBufferName << "\n";
                l_pNamedBuffer = m_pContext -> getNamedBuffer( l_pszBufferName);
                
                if( !l_pNamedBuffer) THROW_XMLFLOW_EXCEPTION ( ERRCODE_LOC_NAMEDBUFFERGETSTREAMER + ERRCODE_CAUSE_MISSINGREF , "Named buffer not found.", l_pszBufferName,  "NamedBufferGetStreamer::initStream", "", false );
                //logout << "output data... \n";

                (*m_pOutput) << (* l_pNamedBuffer);
                //logout << "commit data... \n";
                m_pOutput->commitStream(false);
            }
        }

        //logout << "buf get OK\n";
        
        return true;
    }

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


//=============================================================================
//  CLASS NamedBufferGetStreamerFactory
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

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


END_XDFLENGINE_NS

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