it_bus_pdk/xml_sax_parser.h

#ifndef _IT_BUS_PDK_XML_SAX_PARSER_H_
#define _IT_BUS_PDK_XML_SAX_PARSER_H_

// @Copyright 2004 IONA Technologies, Plc. All Rights Reserved.
//

#include <it_cal/auto_ptr.h>
#include <it_bus_pdk/xml_sax_handler.h>
#include <it_bus/binary_buffer.h>
#include <it_bus_pdk/xml_parse_exception.h>
#include <it_bus/api_defines.h>

namespace xercesc_2_4
{
    class SAX2XMLReader;
    class InputSource;
}

namespace IT_Bus
{

    class IT_BUS_XML_API XMLSaxParser
    {
      public:
        XMLSaxParser();

        XMLSaxParser(
            UInt parser_recycle_level,
            Boolean validating = IT_false
        );
        
        virtual
        ~XMLSaxParser();
        
        void
        parse_from_url(
            const String& url,
            XMLSaxHandler & sax_handler
        ) IT_THROW_DECL((XMLParseException));

        void
        parse_from_file(
            const String& file_name,
            XMLSaxHandler & sax_handler
        ) IT_THROW_DECL((XMLParseException));

        void
        parse(
            const BinaryBuffer& input_buffer,
            XMLSaxHandler & sax_handler
        ) IT_THROW_DECL((XMLParseException));
        
        Boolean
        is_validating() 
        { 
            return m_validating; 
        }

        void
        load_grammar_from_url(const String & schema_url);

        void
        load_grammar(const BinaryBuffer & input_source);

      protected :

        void 
        init_parser();

        void 
        check_parser();
        
        virtual void 
        recycle_parser();

        void
        parse(
            xercesc_2_4::InputSource & input_source,
            XMLSaxHandler & sax_handler
        ) IT_THROW_DECL((XMLParseException));

        xercesc_2_4::SAX2XMLReader*            m_xerces_parser;
        UInt                                   m_parser_recycle_level;
        UInt                                   m_parse_counter;
        Boolean                                m_validating;
    };
}

#endif  

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