it_bus_pdk/xml_tree_walker.h

//         @Copyright (c) 1993-2003 IONA Technologies INC.
//                    All Rights Reserved
//
// This class does a pre-order walk of a DOM tree, calling a ContentHandler
// interface as it goes. This is a C++ port of the Java TreeWalker class,
// which is part of the Xalan utilities.

#ifndef _XML_TREE_WALKER_H_
#define _XML_TREE_WALKER_H_

#include <xercesc/dom/DOM.hpp>
#include <xercesc/sax/SAXException.hpp>
#include <xercesc/sax2/ContentHandler.hpp>
#include <xercesc/sax2/Attributes.hpp>

#include <it_bus/types.h>

XERCES_CPP_NAMESPACE_USE

namespace IT_Bus
{
    class IT_BUS_XML_API TreeWalker
    {   
      public:

        TreeWalker(
            ContentHandler* content_handler 
        );
    
        ~TreeWalker();
        
        const ContentHandler *
        get_content_handler()
        IT_THROW_DECL(());
    
        void 
        set_content_handler(
            ContentHandler* ch
        ) IT_THROW_DECL(());
    
        void 
        traverse(
            DOMNode* pos
        ) IT_THROW_DECL((SAXException));

        void 
        traverse(
            DOMNode* pos, 
            DOMNode* top
        ) IT_THROW_DECL((SAXException));

      private:

        void 
        dispatch_chars(
            DOMNode* node
        ) IT_THROW_DECL((SAXException));
    
        void 
        start_node(
            DOMNode* node
        ) IT_THROW_DECL((SAXException));
    
        void 
        end_node(
            DOMNode* node
        ) IT_THROW_DECL((SAXException));  
    
        Attributes*
        extract_attributes(
            DOMNamedNodeMap* source
        ) IT_THROW_DECL(());
    
        ContentHandler*     m_content_handler;  
        bool                m_next_is_raw;

        XMLCh*              m_xmlns_with_colon;
        XMLCh*              m_xmlns_without_colon;
        XMLCh*              m_next_is_raw_str;
        XMLCh*              m_enable_output;
        XMLCh*              m_disable_output;
    };
}

#endif 

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