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"

//This is used to lock on shared resource
// G4TypeMutex<G4CrossSectionFactoryRegistry>()

G4CrossSectionFactoryRegistry* G4CrossSectionFactoryRegistry::instance = 0;
G4CrossSectionFactoryRegistry* G4CrossSectionFactoryRegistry::Instance()
{
  G4AutoLock l(G4TypeMutex<G4CrossSectionFactoryRegistry>());
  if (!instance)
    new G4CrossSectionFactoryRegistry();
  return instance;
}

G4CrossSectionFactoryRegistry::G4CrossSectionFactoryRegistry()
{
  instance = this;
}

G4CrossSectionFactoryRegistry::G4CrossSectionFactoryRegistry(const G4CrossSectionFactoryRegistry&)
{
    G4Exception("G4CrossSectionFactoryRegistry::G4CrossSectionFactoryRegistry",
                "CrossSection004",FatalException,"Use of copy constructor not allowed");
}
G4CrossSectionFactoryRegistry& G4CrossSectionFactoryRegistry::operator=(const G4CrossSectionFactoryRegistry&)
{
    G4Exception("G4CrossSectionFactoryRegistry::G4CrossSectionFactoryRegistry",
                "CrossSection004",FatalException,"Use of assignment operator not allowed");
    return *this;
}

void G4CrossSectionFactoryRegistry::Register( const G4String& name, G4VBaseXSFactory* factory )
{
  G4AutoLock l(G4TypeMutex<G4CrossSectionFactoryRegistry>());
    if ( factories.find(name) != factories.end() )
    {
        G4ExceptionDescription msg;
        msg <<"Cross section factory with name: "<<name
            <<" already existing, old factory has been replaced";
        G4Exception("G4CrossSectionFactoryRegistry::Register(...)",
                    "CrossSection002",JustWarning,msg);
    }
    factories[name] = factory;
}

G4VBaseXSFactory* G4CrossSectionFactoryRegistry::GetFactory( const G4String& name, G4bool abortIfNotFound ) const
{
  G4AutoLock l(G4TypeMutex<G4CrossSectionFactoryRegistry>());
    std::map<G4String,G4VBaseXSFactory*>::const_iterator it = factories.find(name);
    if ( it != factories.end() ) return it->second;
    else
    {
        if ( abortIfNotFound )
        {
            G4ExceptionDescription msg;
            msg <<"Cross section factory with name: "<<name
                <<" not found.";
            G4Exception("G4CrossSectionFactoryRegistry::Register(...)",
                        "CrossSection003",FatalException,msg);
        }
    }
    return static_cast<G4VBaseXSFactory*>(0);
}


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;
}