XMLGrammarPoolImpl.cpp

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/*
 * $Log$
 * Revision 1.3  2003/07/31 17:05:03  peiyongz
 * Grammar embed Grammar Description
 * using getGrammar(URI)
 * update GrammarDescription info
 *
 * Revision 1.2  2003/06/20 22:19:30  peiyongz
 * Stateless Grammar Pool :: Part I
 *
 * Revision 1.1  2003/06/20 18:38:39  peiyongz
 * Stateless Grammar Pool :: Part I
 *
 * $Id$
 *
 */


// ---------------------------------------------------------------------------
//  Includes
// ---------------------------------------------------------------------------
#include <xercesc/internal/XMLGrammarPoolImpl.hpp>
#include <xercesc/validators/DTD/DTDGrammar.hpp>
#include <xercesc/validators/DTD/XMLDTDDescriptionImpl.hpp>
#include <xercesc/validators/schema/SchemaGrammar.hpp>
#include <xercesc/validators/schema/XMLSchemaDescriptionImpl.hpp>

XERCES_CPP_NAMESPACE_BEGIN

// ---------------------------------------------------------------------------
//  XMLGrammarPoolImpl: constructor and destructor
// ---------------------------------------------------------------------------
XMLGrammarPoolImpl::~XMLGrammarPoolImpl()
{
    delete fGrammarRegistry;
}

XMLGrammarPoolImpl::XMLGrammarPoolImpl(MemoryManager* const memMgr)
:XMLGrammarPool(memMgr)
,fGrammarRegistry(0)
{
    fGrammarRegistry = new (memMgr) RefHashTableOf<Grammar>(29, true, memMgr);
}

// -----------------------------------------------------------------------
// Implementation of Grammar Pool Interface 
// -----------------------------------------------------------------------
void XMLGrammarPoolImpl::cacheGrammar(Grammar* const               gramToCache )
{
    if (!gramToCache )
        return;

    const XMLCh* grammarKey = gramToCache->getGrammarDescription()->getGrammarKey();

    if (fGrammarRegistry->containsKey(grammarKey)) 
    {
        ThrowXML(RuntimeException, XMLExcepts::GC_ExistingGrammar);
    }

    fGrammarRegistry->put((void*) grammarKey, gramToCache); 

}

Grammar* XMLGrammarPoolImpl::retrieveGrammar(XMLGrammarDescription* const gramDesc)
{
    if (!gramDesc)
        return 0;

    /***
     * This implementation simply use GrammarKey
     */
    return fGrammarRegistry->get(gramDesc->getGrammarKey());
    
}

Grammar* XMLGrammarPoolImpl::orphanGrammar(const XMLCh* const nameSpaceKey)
{
    return fGrammarRegistry->orphanKey(nameSpaceKey); 
}

void XMLGrammarPoolImpl::clear()
{
    fGrammarRegistry->removeAll();
}

void XMLGrammarPoolImpl::lockPool()
{
    //This implementation does NOT provide thread safety mechanism
}

void XMLGrammarPoolImpl::unlockPool()
{
    //This implementation does NOT provide thread safety mechanism
}

// -----------------------------------------------------------------------
// Implementation of Factory Interface 
// -----------------------------------------------------------------------
DTDGrammar*  XMLGrammarPoolImpl::createDTDGrammar()
{ 
	return new (getMemoryManager()) DTDGrammar(getMemoryManager());
}                                    

SchemaGrammar* XMLGrammarPoolImpl::createSchemaGrammar()
{
	return new (getMemoryManager()) SchemaGrammar(getMemoryManager()); 
}

XMLDTDDescription*  XMLGrammarPoolImpl::createDTDDescription(const XMLCh* const rootName)
{ 
	return new (getMemoryManager()) XMLDTDDescriptionImpl(rootName, getMemoryManager()); 
}
								   
XMLSchemaDescription* XMLGrammarPoolImpl::createSchemaDescription(const XMLCh* const targetNamespace)
{
	return new (getMemoryManager()) XMLSchemaDescriptionImpl(targetNamespace, getMemoryManager()); 
}

XERCES_CPP_NAMESPACE_END