XmlParser.h

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// $Header: /bes/bes/BossCvs/Calibration/xmlBase/xmlBase/XmlParser.h,v 1.1.1.1 2005/10/17 06:10:27 maqm Exp $
// Author:  J. Bogart
 
#ifndef xmlBase_XmlParser_h
#define xmlBase_XmlParser_h
 
#include "xmlBase/XmlErrorHandler.h"
 // following indirectly includes DOMDocument, DOMElement...
#include <xercesc/parsers/XercesDOMParser.hpp>
#include <string>
#include <iosfwd>
 
 
namespace xmlBase {
  /// This class provides an interface to the Xerces DOM parser
  /// with validation turned on if the file to be parsed has a dtd.
  class EResolver;
  using XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument;
  using XERCES_CPP_NAMESPACE_QUALIFIER XercesDOMParser;
 
 
  class XmlParser {
  public:
    XmlParser(bool throwErrors = false);
 
    /// Call this method to turn on schema processing (else it's off)
    void doSchema(bool doit);
    ~XmlParser();
 
    /// Parse an xml file, returning document node if successful
    DOMDocument* parse(const char* const filename, 
                       const std::string& docType=std::string(""));
 
 
    /// Parse an xml file as a string, returning document node if successful
    DOMDocument* parse(const std::string& buffer,
                       const std::string& docType=std::string("") );
 
    /// Reset the parser so it may be used to parse another document (note
    /// this destroys old DOM)
    void reset() {m_parser->reset();}
  private:
    /// Xerces-supplied parser which does the real work
    XercesDOMParser* m_parser;
    XmlErrorHandler* m_errorHandler;
    /// Entity resolver
    EResolver*       m_resolver;    
    bool             m_throwErrors;
    bool             m_errorsOccurred;
    bool             m_doSchema;
    static int didInit;
  };
}
#endif