G4GDMLRead.hh

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//
// $Id: G4GDMLRead.hh 89493 2015-04-14 09:22:54Z gcosmo $
//
// class G4GDMLRead
//
// Class description:
//
// GDML reader.

// History:
// - Created.                                  Zoltan Torzsok, November 2007
// -------------------------------------------------------------------------

#ifndef _G4GDMLBASE_INCLUDED_
#define _G4GDMLBASE_INCLUDED_

#include <xercesc/parsers/XercesDOMParser.hpp>
#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/sax/HandlerBase.hpp>
#include <xercesc/util/XMLUni.hpp>
#include <xercesc/dom/DOM.hpp>

#include "G4Types.hh"

#include "G4GDMLEvaluator.hh"
#include "G4GDMLAuxStructType.hh"

class G4LogicalVolume;
class G4VPhysicalVolume;

class G4GDMLErrorHandler : public xercesc::ErrorHandler
{
   G4bool Suppress;

 public:

   G4GDMLErrorHandler(const G4bool set) { Suppress = set; }

   void warning(const xercesc::SAXParseException& exception)
   {
      if (Suppress)  { return; }
      char* message = xercesc::XMLString::transcode(exception.getMessage());
      G4cout << "G4GDML: VALIDATION WARNING! " << message
             << " at line: " << exception.getLineNumber() << G4endl;
      xercesc::XMLString::release(&message);
   }

   void error(const xercesc::SAXParseException& exception)
   {
      if (Suppress)  { return; }
      char* message = xercesc::XMLString::transcode(exception.getMessage());
      G4cout << "G4GDML: VALIDATION ERROR! " << message
             << " at line: " << exception.getLineNumber() << G4endl;
      xercesc::XMLString::release(&message);
   }

   void fatalError(const xercesc::SAXParseException& exception)
   {
      error(exception);
   }
   void resetErrors() {}
};

class G4GDMLRead
{

 public:  // with description

   virtual void DefineRead(const xercesc::DOMElement* const)=0;
   virtual void MaterialsRead(const xercesc::DOMElement* const)=0;
   virtual void SetupRead(const xercesc::DOMElement* const)=0;
   virtual void SolidsRead(const xercesc::DOMElement* const)=0;
   virtual void Paramvol_contentRead(const xercesc::DOMElement* const)=0;
   virtual void Volume_contentRead(const xercesc::DOMElement* const)=0;
   virtual void StructureRead(const xercesc::DOMElement* const)=0;
     //
     // Pure virtual methods implemented in concrete reader plugin's classes

   virtual void ExtensionRead(const xercesc::DOMElement* const);
     //
     // To be implemented in the client code for handling extensions
     // to the GDML schema, identified with the tag "extension".
     // The implementation should be placed inside a user-class
     // inheriting from G4GDMLReadStructure and being registered
     // as argument to G4GDMLParser.

   virtual void UserinfoRead(const xercesc::DOMElement* const);
     //
     // Customisable by user to handle "userinfo" extensions to the
     // GDML schema, identified by the tag "userinfo".

   virtual G4LogicalVolume* GetVolume(const G4String&) const=0;
   virtual G4String GetSetup(const G4String&)=0;
     //
     // More pure virtual methods implemented in the reader plugin.

   void Read(const G4String&, G4bool validation,
             G4bool isModule, G4bool strip=true);
     //
     // Main method for reading GDML files.

   void StripNames() const;
   void StripName(G4String&) const;
     //
     // Strip off pointers from entity IDs.

   void OverlapCheck(G4bool);
     //
     // Activate/de-activate surface check for overlaps (default is off)

   const G4GDMLAuxListType* GetAuxList() const;

  
 protected:

   G4GDMLRead();
   virtual ~G4GDMLRead();

   G4String Transcode(const XMLCh* const);
   G4String GenerateName(const G4String& name, G4bool strip=false);
   G4String Strip(const G4String&) const;
   void GeneratePhysvolName(const G4String&,G4VPhysicalVolume*);
   void LoopRead(const xercesc::DOMElement* const,
                 void(G4GDMLRead::*)(const xercesc::DOMElement* const));

   G4GDMLAuxStructType AuxiliaryRead(const xercesc::DOMElement* const auxElem);

 protected:

   G4GDMLEvaluator eval;
   G4bool validate;
   G4bool check;
   G4bool dostrip;

 private:

   G4int inLoop, loopCount;
   G4GDMLAuxListType auxGlobalList;

};

#endif