/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef _LOG4CXX_HELPERS_GNOMEXML_H
#define _LOG4CXX_HELPERS_GNOMEXML_H

#include <log4cxx/config.h>

#ifdef HAVE_LIBXML2

#include <log4cxx/helpers/xml.h>
#include <log4cxx/helpers/objectimpl.h>

#include <libxml/tree.h>

namespace log4cxx
{
	namespace helpers
	{
		class GnomeXMLDOMNode : 
			virtual public XMLDOMNode,
			virtual public ObjectImpl
		{
		public:
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(GnomeXMLDOMNode)
			BEGIN_LOG4CXX_CAST_MAP()
				LOG4CXX_CAST_ENTRY(XMLDOMNode)
			END_LOG4CXX_CAST_MAP()

			GnomeXMLDOMNode(xmlNodePtr node);

			virtual XMLDOMNodeListPtr getChildNodes();
			virtual XMLDOMNodeType getNodeType()
				{ return NOT_IMPLEMENTED_NODE; }

			virtual XMLDOMDocumentPtr getOwnerDocument();

		protected:
			xmlNodePtr node;
		};

		class GnomeXMLDOMDocument : 
			virtual public XMLDOMDocument,
			virtual public ObjectImpl
		{
		public:
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(GnomeXMLDOMDocument)
			BEGIN_LOG4CXX_CAST_MAP()
				LOG4CXX_CAST_ENTRY(XMLDOMDocument)
				LOG4CXX_CAST_ENTRY(XMLDOMNode)
			END_LOG4CXX_CAST_MAP()

			GnomeXMLDOMDocument();
			GnomeXMLDOMDocument(xmlDocPtr document);
			~GnomeXMLDOMDocument();

			virtual XMLDOMNodeListPtr getChildNodes();
			virtual XMLDOMNodeType getNodeType()
				{ return XMLDOMNode::DOCUMENT_NODE; }
			virtual XMLDOMDocumentPtr getOwnerDocument();
			virtual void load(const String& fileName);
			virtual XMLDOMElementPtr getDocumentElement();
			virtual XMLDOMElementPtr getElementById(
				const String& tagName, const String& elementId);

		protected:
			xmlDocPtr document;
			bool ownDocument;
		};

		class GnomeXMLDOMElement : 
			virtual public XMLDOMElement,
			virtual public ObjectImpl
		{
		public:
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(GnomeXMLDOMElement)
			BEGIN_LOG4CXX_CAST_MAP()
				LOG4CXX_CAST_ENTRY(XMLDOMElement)
				LOG4CXX_CAST_ENTRY(XMLDOMNode)
			END_LOG4CXX_CAST_MAP()

			GnomeXMLDOMElement(xmlNodePtr element);

			virtual XMLDOMNodeListPtr getChildNodes();
			virtual XMLDOMNodeType getNodeType()
				{ return XMLDOMNode::ELEMENT_NODE; }
			virtual XMLDOMDocumentPtr getOwnerDocument();
			virtual String getTagName();
			virtual String getAttribute(const String& name);

		protected:
			xmlNodePtr element;
		};

		class GnomeXMLDOMNodeList : 
			virtual public XMLDOMNodeList,
			virtual public ObjectImpl
		{
		public:
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(GnomeXMLDOMNodeList)
			BEGIN_LOG4CXX_CAST_MAP()
				LOG4CXX_CAST_ENTRY(XMLDOMNodeList)
			END_LOG4CXX_CAST_MAP()

			GnomeXMLDOMNodeList(xmlNodePtr firstChild);

			virtual int getLength();
			virtual XMLDOMNodePtr item(int index);

		protected:
			xmlNodePtr firstChild;
			xmlNodePtr currentChild;
			int currentIndex;
		};
	}  // namespace helpers
}; // namespace log4cxx

#endif // HAVE_LIBXML2
#endif // _LOG4CXX_HELPERS_MSXML_H