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cachedefinitionstreamer.cpp

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//============================================================================= 
//
// XDFLengine library
//
//-----------------------------------------------------------------------------
//  CacheDefinitionStreamer.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 "cachedefinitionstreamer.hpp"
#   include "processor/xmlflowcontext.hpp"
#   include "streamers/db/dbobject/dbobjdefinition.hpp"

BEGIN_XDFLENGINE_NS

//=============================================================================
//  CLASS CacheDefinitionStreamer
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


    //_____________________________________________________________________
    //  SaxStreamer
    //---------------------------------------------------------------------
    CacheDefinitionStreamer::CacheDefinitionStreamer( const XMLStreamerFactory* p_pParent, StreamerParams* p_pParameters, XMLFlowContext* p_pContext, XMLStreamConsumer* p_pOutput, ContentHandler* p_pHandler, bool p_fCopyStreamToOutput)
    :SaxStreamer( p_pParent, p_pParameters, p_pContext, p_pOutput, p_pHandler, p_fCopyStreamToOutput)
    {
        DEBUG_CREATE(CacheDefinitionStreamer)
    }
    
    //_____________________________________________________________________
    //  ~SaxStreamer
    //---------------------------------------------------------------------     
    CacheDefinitionStreamer::~CacheDefinitionStreamer()
    {
        DEBUG_DEL(CacheDefinitionStreamer)
    }

    //_____________________________________________________________________
    //  COMMITSTREAM
    //---------------------------------------------------------------------
    bool CacheDefinitionStreamer::commitStream(bool p_fFinal)
    {
        //---------------------------------------------------------------------
        bool                    l_fOK;
        DBOBJDefinitionNode*    l_pDefinitionRoot=0;
        const char*             l_pszDefName=0;
        //---------------------------------------------------------------------

        PREP_CATCH_XML_FLOW_ERROR;

        DEBUG_IN(CacheDefinitionStreamer::writeData)

        l_fOK = SaxStreamer::commitStream( p_fFinal);

        if(l_fOK && p_fFinal)
        {   
            
            l_pszDefName = getParamValue( m_pParameters, CACHEDEFINITIONSTREAMER_NAME,"");
            // get definition
            WATCH_XML_FLOW_ERROR
            {
                logout << "\t" << CACHEDEFINITIONSTREAMER_TAGNAME<< "   :   " << "Caching definition " << l_pszDefName << "...\n";

                // retrieve definition
                l_pDefinitionRoot =  ((SAXDBOBJDefinitionBuilder*)m_pHandler)->getDefinition();     
                // process definition completion
                ( (CacheDefinitionStreamerFactory*) m_pParent)->cacheDefinition( l_pszDefName, l_pDefinitionRoot);
            } 
            CATCH_XML_FLOW_ERROR_RELEASE_AND_RETURN ;
        }

    RELEASE_AND_RETURN:
        
        ON_XML_FLOW_ERROR_DO
        {
            l_fOK = false;
            delete l_pDefinitionRoot;
        }
        ON_XML_FLOW_ERROR_THROW;    

        DEBUG_OUT(CacheDefinitionStreamer::writeData)

        return l_fOK;
    }


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


//=============================================================================
//  CLASS CacheDefinitionStreamerFactory
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~





    //_____________________________________________________________________
    //  GETSTREAMER
    //---------------------------------------------------------------------
    XMLStreamer* CacheDefinitionStreamerFactory::getStreamer(
        StreamerParams*         p_pParameters, 
        XMLFlowContext* p_pStreamContext, 
        XMLStreamConsumer*      p_pStreamConsumer) const
    {
        SAXDBOBJDefinitionBuilder*  l_pSAXDefinitionBuilder = 0;

        l_pSAXDefinitionBuilder = new SAXDBOBJDefinitionBuilder( p_pStreamContext);
        return (XMLStreamer*) new CacheDefinitionStreamer( this, p_pParameters, p_pStreamContext, p_pStreamConsumer, l_pSAXDefinitionBuilder, false);
    }


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


END_XDFLENGINE_NS

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