G4NuclearLevelStore.cc

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//
// $Id: G4NuclearLevelStore.cc 88406 2015-02-18 09:13:29Z gcosmo $
//
// 06-10-2010 M. Kelsey -- Drop static data members.
// 17-11-2010 V. Ivanchenko - make as a classical singleton. 
// 17-10-2011 V. L. Desorgher - allows to define separate datafile for 
//               given isotope
// 06-01-2012 V. Ivanchenko - cleanup the code; new method GetLevelManager  
// 19-11-2014 M. Asai - protection against reading the same file from     
//               more than one worker threads
//

#include "G4NuclearLevelStore.hh"
#include <sstream>
#include <fstream>

G4ThreadLocal G4NuclearLevelStore* G4NuclearLevelStore::theInstance = 0;
#ifdef G4MULTITHREADED
G4NuclearLevelStore* G4NuclearLevelStore::theShadowInstance = 0;
G4Mutex G4NuclearLevelStore::nuclearLevelStoreMutex = G4MUTEX_INITIALIZER;
#endif

G4NuclearLevelStore* G4NuclearLevelStore::GetInstance()
{
  if(!theInstance) {
    static G4ThreadLocalSingleton<G4NuclearLevelStore> inst;
    theInstance = inst.Instance();
  }
#ifdef G4MULTITHREADED
  if(!theShadowInstance) {
    static G4NuclearLevelStore shadowInst;
    theShadowInstance = &shadowInst;
  }
#endif
  return theInstance;
}

G4NuclearLevelStore::G4NuclearLevelStore()
{
  userFiles = false;
  char* env = getenv("G4LEVELGAMMADATA");
  if (env == 0) 
    {
      G4cout << "G4NuclarLevelStore: please set the G4LEVELGAMMADATA environment variable\n";
      dirName = "";
    }
  else
    {
      dirName = env;
      dirName += '/';
    }
}

G4NuclearLevelStore::~G4NuclearLevelStore()
{
#ifdef G4MULTITHREADED
  if(this==theShadowInstance) // G4NuclearLevelManager object should be deleted only by the master
  {
#endif
    ManagersMap::iterator i;
    for (i = theManagers.begin(); i != theManagers.end(); ++i)
      { delete i->second; }
#ifdef G4MULTITHREADED
  }
#endif
}

void 
G4NuclearLevelStore::AddUserEvaporationDataFile(G4int Z, G4int A,
                                                const G4String& filename)
{ 
  if (Z<1 || A<2) {
    G4cout<<"G4NuclearLevelStore::AddUserEvaporationDataFile "
          <<" Z= " << Z << " and A= " << A << " not valid!"<<G4endl;
  }

  std::ifstream DecaySchemeFile(filename);
  if (DecaySchemeFile){
    G4int ID_ion=Z*1000+A;//A*1000+Z;
    theUserDataFiles[ID_ion]=filename;
    userFiles = true;
  }
  else {
    G4cout<<"The file "<<filename<<" does not exist!"<<G4endl;
  }
}

G4String 
G4NuclearLevelStore::GenerateFileName(G4int Z, G4int A) const 
{
  std::ostringstream streamName; 
  streamName << 'z' << Z << ".a" << A;
  G4String name(streamName.str());
  return name;
}

G4NuclearLevelManager* 
G4NuclearLevelStore::GetManager(G4int Z, G4int A) 
{
  G4NuclearLevelManager * result = 0; 
  if (A < 1 || Z < 1 || A < Z)
    {
      //G4cout << "G4NuclearLevelStore::GetManager: Wrong values Z = " << Z 
      //               << " A = " << A << '\n';
      return result;
    }

  // Generate the key = filename
  G4int key = Z*1000+A; //GenerateKey(Z,A);
    
  // Check if already exists that key
  ManagersMap::iterator idx = theManagers.find(key);

#ifdef G4MULTITHREADED
  // If doesn't exists then check the master
  if ( idx == theManagers.end() )
  {
    G4MUTEXLOCK(&G4NuclearLevelStore::nuclearLevelStoreMutex);
    ManagersMap::iterator idxS = theShadowInstance->theManagers.find(key);
    if ( idxS == theShadowInstance->theManagers.end() )
    {
      // If doesn't exists then create it
      G4String file = dirName + GenerateFileName(Z,A);

      //Check if data have been provided by the user
      if(userFiles) {
        G4String file1 = theUserDataFiles[key];//1000*A+Z];
        if (file1 != "") { file = file1; }
      }
      result = new G4NuclearLevelManager(Z,A,file);
      theShadowInstance->theManagers.insert(std::make_pair(key,result));
    }
    else
    {
      // if it exists in the master
      result = idxS->second;
    }
    // register to the local map
    theManagers.insert(std::make_pair(key,result));
    G4MUTEXUNLOCK(&G4NuclearLevelStore::nuclearLevelStoreMutex);
  }
#else
  // If doesn't exists then create it
  if ( idx == theManagers.end() )
  {
      G4String file = dirName + GenerateFileName(Z,A);

      //Check if data have been provided by the user
      if(userFiles) {
        G4String file1 = theUserDataFiles[key];//1000*A+Z];
        if (file1 != "") { file = file1; }
      }
      result = new G4NuclearLevelManager(Z,A,file);
      theManagers.insert(std::make_pair(key,result));
  }
#endif
  else
  // But if it exists...
  {
    result = idx->second;
  }
    
  return result; 
}