pyG4ExceptionHandler.cc

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// ********************************************************************
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// * the Geant4 Collaboration.  It is provided  under  the terms  and *
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//
// ====================================================================
//   pyG4ExceptionHandler.cc
//
//                                         2005 Q
// ====================================================================
#include <stdlib.h>
#include <boost/python.hpp>
#include "G4ios.hh"
#include "G4VExceptionHandler.hh"
#include "G4StateManager.hh"

using namespace boost::python;

// ====================================================================
// Python Exception Handler
// ====================================================================
class PyG4ExceptionHandler : public G4VExceptionHandler {
public:
  PyG4ExceptionHandler():G4VExceptionHandler() {
    G4StateManager* sm= G4StateManager::GetStateManager();
    sm-> SetExceptionHandler(this);
  }
  ~PyG4ExceptionHandler() { }

  G4bool Notify(const char* originOfException,
                const char* exceptionCode,
                G4ExceptionSeverity severity,
                const char* description) {

    std::ostringstream message;
    message << "*** G4Exception : " << exceptionCode << G4endl
            << "      issued by : " << originOfException << G4endl
            << description << G4endl;

    switch(severity) {
    case FatalException:
      PyErr_SetString(PyExc_AssertionError,
                      "*** Fatal Exception ***");
      PyErr_Print();
      G4cerr << message.str() << G4endl;
      break;

    case FatalErrorInArgument:
      PyErr_SetString(PyExc_ValueError,
                      "*** Fatal Error In Argument ***");
      PyErr_Print();
      G4cerr << message.str() << G4endl;
      break;

    case RunMustBeAborted:
      PyErr_SetString(PyExc_RuntimeError,
                      "*** Run Must Be Aborted ***");
      PyErr_Print();
      G4cerr << message.str() << G4endl;
      break;

    case EventMustBeAborted:
      PyErr_SetString(PyExc_RuntimeError,
                      "*** Event Must Be Aborted ***");
      PyErr_Print();
      G4cerr << message.str() << G4endl;
      break;

    default:
      PyErr_Warn(PyExc_RuntimeWarning,
                 "*** This is just a warning message. ***");
      G4cerr << message.str() << G4endl;
      break;
    }

    // anyway, no abort.
    return false;
  }
};

// ====================================================================
// module definition
// ====================================================================
void export_G4ExceptionHandler()
{
  class_<PyG4ExceptionHandler, boost::noncopyable>
    ("G4ExceptionHandler", "exception handler")
    ;
}