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funcdefinestreamer.cpp

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//============================================================================= 
//
// XDFLengine library
//
//-----------------------------------------------------------------------------
//  FUNCDEFINESTREAMER.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 "funcdefinestreamer.hpp"
#   include "processor/xmlprocessor.hpp"
#   include "processor/xmlflowcontext.hpp"
#   include "streamers/func/funccallstreamer.hpp"


BEGIN_XDFLENGINE_NS

//=============================================================================
//  CLASS FUNCDEFINESTREAMER
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

// CONSTRUCTOR & DESTRUCTOR

    //_____________________________________________________________________
    //  FUNCDEFINESTREAMER
    //---------------------------------------------------------------------
    FuncDefineStreamer::FuncDefineStreamer( const XMLStreamerFactory* p_pParent, StreamerParams* p_pParameters, XMLFlowContext* p_pContext, XMLStreamConsumer* p_pOutput)
    :XMLStreamer( p_pParent, p_pParameters, p_pContext, p_pOutput)
    {
        DEBUG_CREATE(FuncDefineStreamer)
        m_pScriptBuffer = 0;
    }
    
    //_____________________________________________________________________
    //  ~FUNCDEFINESTREAMER
    //---------------------------------------------------------------------     
    FuncDefineStreamer::~FuncDefineStreamer()
    {
        DEBUG_DEL(FuncDefineStreamer)
    }
    
// STREAM   

    //_____________________________________________________________________
    //  INITSTREAM
    //---------------------------------------------------------------------
    bool FuncDefineStreamer::initStream()
    {
        DEBUG_IN(FuncDefineStreamer::initStream)

        m_pScriptBuffer = m_pContext->getProcessor() -> getNewBuffer();

        DEBUG_OUT(FuncDefineStreamer::initStream)

        return true;
    }

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

        m_pScriptBuffer -> writeData( p_pszData, p_uiDataLen);

        DEBUG_OUT(FuncDefineStreamer::writeData)
    }

    //_____________________________________________________________________
    //  COMMITSTREAM
    //---------------------------------------------------------------------
    bool FuncDefineStreamer::commitStream(bool p_fFinal)
    {
        //-----------------------------------------------------------------
        const char* l_pszScriptName;
        RootStreamNode* l_pScriptRoot;
        FuncCallStreamerFactory* l_pFuncCallSF;
        //-----------------------------------------------------------------
        PREP_CATCH_XML_FLOW_ERROR;

        if(p_fFinal)
        {
            l_pszScriptName = getParamValue( m_pParameters, FUNCDEFINESTREAMER_NAME,"");
            l_pFuncCallSF = (FuncCallStreamerFactory*) m_pContext->getProcessor()->getStreamerFactory(FUNCCALLSTREAMER_TAGNAME);
            if(!l_pFuncCallSF) THROW_XMLFLOW_EXCEPTION( ERRCODE_LOC_FUNCDEFINESTREAMER + ERRCODE_CAUSE_MISSINGREF , "Function Call Streamer not found." , "", "FuncDefineStreamer::commitStream", "", false );

            WATCH_XML_FLOW_ERROR
            {
                logout << "\t" << FUNCDEFINESTREAMER_TAGNAME<< "   :   " << "Compile function " << l_pszScriptName << "...\n";
                l_pScriptRoot = m_pContext->getProcessor()->compile( m_pScriptBuffer, m_pContext->getThreadId());
                l_pFuncCallSF->cacheScript( l_pScriptRoot, l_pszScriptName);
            }
            CATCH_XML_FLOW_ERROR_RELEASE_AND_RETURN

        }

    RELEASE_AND_RETURN:

        if(p_fFinal)
        {
            delete m_pScriptBuffer;
        }
        ON_XML_FLOW_ERROR_DO
        {
            delete l_pScriptRoot;
        }
        ON_XML_FLOW_ERROR_THROW;
        return false;
    }

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


//=============================================================================
//  CLASS FuncDefineStreamerFactory
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

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


END_XDFLENGINE_NS

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