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#ifndef DETECTOR_DESCRIPTION_PARSER_DDL_SAX2_FILE_HANDLER_H
#define DETECTOR_DESCRIPTION_PARSER_DDL_SAX2_FILE_HANDLER_H
#include <cstddef>
#include <map>
#include <string>
#include <vector>
#include <xercesc/sax2/Attributes.hpp>
#include "DetectorDescription/Core/interface/DDCompactView.h"
#include "DetectorDescription/Core/interface/DDName.h"
#include "DetectorDescription/Parser/interface/DDLElementRegistry.h"
#include "DetectorDescription/Parser/interface/DDLSAX2Handler.h"
class DDCompactView;
class DDLElementRegistry;
/// DDLSAX2FileHandler is the SAX2 Handler for XML files found in the configuration file.
/** @class DDLSAX2FileHandler
* @author Michael Case
*
* DDLSAX2FileHandler.h - description
* -------------------
* begin: Tue Oct 23 2001
*
* DDLSAX2FileHandler has the same structure as the DDLSAX2ConfigHandler as they
* both inherit from DDLSAX2Handler which inherits from Xerces C++ DefaultHandler.
* SAX2 is event driven. So, when the start of an element is encountered in the
* XML, then a call is made to the handler's startElement. The same for endElement.
*
* The design of DDXMLElement allows for processing whichever type of Element the
* XML Parser encounters.
*
*/
class DDLSAX2FileHandler : public DDLSAX2Handler {
public:
DDLSAX2FileHandler(DDCompactView& cpv, DDLElementRegistry&);
~DDLSAX2FileHandler() override;
void init();
// -----------------------------------------------------------------------
// Handlers for the SAX ContentHandler interface
// -----------------------------------------------------------------------
void startElement(const XMLCh* uri, const XMLCh* localname, const XMLCh* qname, const Attributes& attrs) override;
void endElement(const XMLCh* uri, const XMLCh* localname, const XMLCh* qname) override;
void characters(const XMLCh* chars, XMLSize_t length) override;
void comment(const XMLCh* chars, XMLSize_t length) override;
//! creates all DDConstant from the evaluator which has been already 'filled' in the first scan of the documents
void createDDConstants() const;
protected:
DDLElementRegistry& registry() { return registry_; }
private:
virtual const std::string& parent() const;
virtual const std::string& self() const;
private:
std::vector<std::string> namesMap_;
std::vector<size_t> names_;
DDCompactView& cpv_;
DDLElementRegistry& registry_;
};
#endif
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