G4AccumulableManager.hh

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// $Id: G4AccumulableManager.hh 91012 2015-06-15 10:38:07Z ihrivnac $

// The common implementation of analysis manager classes.

// Author: Ivana Hrivnacova, 07/09/2015  (ivana@ipno.in2p3.fr)

#ifndef G4AccumulableManager_h
#define G4AccumulableManager_h 1

#include "G4Accumulable.hh"
#include "globals.hh"

#include <map>
#include <vector>

class G4AnalysisManagerState;
class G4VAccumulable;

class G4AccumulableManager
{
  public:
    virtual ~G4AccumulableManager();
     
    // static methods
    static G4AccumulableManager* Instance();
   
    // Methods

    // Create accumulables
    //
    template <typename T>
    G4Accumulable<T>* 
    CreateAccumulable(const G4String& name, T value, 
                      G4MergeMode mergeMode = G4MergeMode::kAddition);

    template <typename T> 
    G4Accumulable<T>* 
    CreateAccumulable(T value, 
                      G4MergeMode mergeMode = G4MergeMode::kAddition);

    // Register existing accumulables
    // 
    // templated accumulable
    template <typename T> 
    G4bool RegisterAccumulable(G4Accumulable<T>& accumulable);
    // user defined accumulable
    G4bool RegisterAccumulable(G4VAccumulable* accumulable);

    // Access registered accumulables
    // 
    // Via name
    // templated accumulable
    template <typename T> 
    G4Accumulable<T>*  GetAccumulable(const G4String& name, G4bool warn = true) const;
    // user defined accumulable
    G4VAccumulable*  GetAccumulable(const G4String& name, G4bool warn = true) const;

    // Via id (in the order of registering)
    //  templated accumulable
    template <typename T> 
    G4Accumulable<T>*  GetAccumulable(G4int id, G4bool warn = true) const;
    // user defined accumulable
    G4VAccumulable*  GetAccumulable(G4int id, G4bool warn = true) const;
    G4int GetNofAccumulables() const;

    // Via vector iterators
    std::vector<G4VAccumulable*>::iterator Begin();
    std::vector<G4VAccumulable*>::iterator End();
    std::vector<G4VAccumulable*>::const_iterator BeginConst() const;
    std::vector<G4VAccumulable*>::const_iterator EndConst() const;

    // Methods applied to all accumulables
    void Merge();
    void Reset();

  private:
    // hide ctor requiring master/worker specification
    G4AccumulableManager(G4bool isMaster);

    // metods
    // Generate generic accumulable name: accumulableN, where N is the actual number of accumulables
    G4String GenerateName() const;
    // Check if a name is already used in a map and print a warning 
    G4bool CheckName(const G4String& name, const G4String& where) const;

    template <typename T> 
    G4Accumulable<T>*  GetAccumulable(G4VAccumulable* accumulable, G4bool warn) const;

    // constants
    const G4String kBaseName = "accumulable";

    // static data members
    static G4AccumulableManager* fgMasterInstance;
    static G4ThreadLocal G4AccumulableManager* fgInstance;    

    // data members
    std::vector<G4VAccumulable*>        fVector;
    std::map<G4String, G4VAccumulable*> fMap;
    std::vector<G4VAccumulable*>        fAccumulablesToDelete;
 };

#include "G4AccumulableManager.icc"

#endif