G4CrossSectionFactoryRegistry.cc

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// G4CrossSectionFactoryRegistry class
//
// History:
// 1-Apr-2013: A. Dotti, first implementation
#include "G4CrossSectionFactoryRegistry.hh"
#include "G4CrossSectionFactory.hh"
#include "G4AutoLock.hh"
#include "globals.hh"
 
namespace
{
  G4Mutex regMutex = G4MUTEX_INITIALIZER;
}
 
G4CrossSectionFactoryRegistry* G4CrossSectionFactoryRegistry::Instance()
{
  static G4CrossSectionFactoryRegistry reg;
  return ®
}
 
G4CrossSectionFactoryRegistry::G4CrossSectionFactoryRegistry()
{}
 
void G4CrossSectionFactoryRegistry::Register( const G4String& name, G4VBaseXSFactory* factory )
{
  if ( factories.find(name) == factories.end() ) {
    G4AutoLock l(regMutex);
    if ( factories.find(name) == factories.end() ) {
      factories[name] = factory;
    }
    l.unlock();
  }
}
 
void G4CrossSectionFactoryRegistry::DeRegister( G4VBaseXSFactory* factory )
{
  if ( nullptr == factory || factories.empty() ) { return; }
  G4AutoLock l(regMutex);
  for ( auto const & f : factories ) {
    if ( factory == f.second ) {
      factories[f.first] = nullptr;
    }
  }
  l.unlock();
}
 
G4VBaseXSFactory*
G4CrossSectionFactoryRegistry::GetFactory( const G4String& name, G4bool abortIfNotFound ) const
{
  G4VBaseXSFactory* ptr = nullptr;
  auto it = factories.find(name);
  if ( it != factories.end() ) {
    ptr = it->second;
  } else if ( abortIfNotFound ) {
    G4ExceptionDescription msg;
    msg << "Cross section factory with name: " << name << " not found.";
    G4Exception("G4CrossSectionFactoryRegistry::GetFactory(...)",
        "CrossSection003", FatalException, msg);
  }
  return ptr;
}
 
std::ostream&  operator<<(std::ostream& msg, const G4CrossSectionFactoryRegistry& rhs) {
  msg<<"Factory Registry "<<&rhs<<" has factories: [";
  for ( std::map<G4String,G4VBaseXSFactory*>::const_iterator it =rhs.factories.begin();
    it != rhs.factories.end() ; ++it )
    {
        msg<<(*it).first<<":"<<(*it).second<<",";
    }
    msg<<"]";
    return msg;
}