src/XercesParserLiaison/XercesNamedNodeListCache.cpp

/*
 * The Apache Software License, Version 1.1
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 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
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 * 1. Redistributions of source code must retain the above copyright
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.ibm.com.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */



#include "XercesNamedNodeListCache.hpp"



#include <algorithm>
#include <cassert>



#include <Include/STLHelper.hpp>



#include <xercesc/dom/DOM_Node.hpp>



#include "XercesNodeListBridge.hpp"



XercesNamedNodeListCache::XercesNamedNodeListCache(const XercesBridgeNavigator&		theNavigator) :
	m_navigator(theNavigator),
	m_cachedNodeLists(),
	m_cachedNodeListsNS()
{
}



XercesNamedNodeListCache::~XercesNamedNodeListCache()
{
#if !defined(XALAN_NO_NAMESPACES)
	using std::for_each;
#endif

	for_each(m_cachedNodeLists.begin(),
			 m_cachedNodeLists.end(),
			 makeMapValueDeleteFunctor(m_cachedNodeLists));

	for_each(m_cachedNodeListsNS.begin(),
			 m_cachedNodeListsNS.end(),
			 makeMapValueDeleteFunctor(m_cachedNodeListsNS));
}



XercesNodeListBridge*
XercesNamedNodeListCache::getElementsByTagName(const XalanDOMString&	tagname) const
{
	const NodeListCacheType::const_iterator		i =
		m_cachedNodeLists.find(tagname);

	if (i != m_cachedNodeLists.end())
	{
		return (*i).second;
	}
	else
	{
		XercesNodeListBridge* const		theNewBridge =
			new XercesNodeListBridge(getXercesNodeList(tagname),
									 m_navigator);

#if defined(XALAN_NO_MUTABLE)
		return (*((XercesNamedNodeListCache*)this)->m_cachedNodeLists.insert(
			NodeListCacheType::value_type(tagname, theNewBridge)).first).second;
#else
		return (*m_cachedNodeLists.insert(
			NodeListCacheType::value_type(tagname, theNewBridge)).first).second;
#endif
	}
}



XercesNodeListBridge*
XercesNamedNodeListCache::getElementsByTagNameNS(
			const XalanDOMString&	namespaceURI,
			const XalanDOMString&	localName) const
{
	const XalanDOMString::size_type		theNamespaceURILength = length(namespaceURI);
	const XalanDOMString::size_type		theLocalNameLength = length(localName);

	XalanDOMString	theSearchString;
	
	reserve(theSearchString, theNamespaceURILength + theLocalNameLength + 1);

	append(theSearchString, namespaceURI);
	append(theSearchString, localName);

	const NodeListCacheType::const_iterator		i =
		m_cachedNodeListsNS.find(theSearchString);

	if (i != m_cachedNodeLists.end())
	{
		return (*i).second;
	}
	else
	{
		XercesNodeListBridge* const		theNewBridge =
			new XercesNodeListBridge(getXercesNodeList(namespaceURI, localName),
									 m_navigator);

#if defined(XALAN_NO_MUTABLE)
		return (*((XercesNamedNodeListCache*)this)->m_cachedNodeLists.insert(
			NodeListCacheType::value_type(theSearchString, theNewBridge)).first).second;
#else
		return (*m_cachedNodeLists.insert(
			NodeListCacheType::value_type(theSearchString, theNewBridge)).first).second;
#endif
	}
}