MetadataService.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
#include <string>
#include <nlohmann/json.hpp>
 
 
namespace Belle2 {
  class FileMetaData;
 
  class MetadataService {
 
  public:
 
    static MetadataService& Instance();
 
    void setJsonFileName(const std::string& fileName) {m_fileName = fileName; writeJson();};
 
    void addRootOutputFile(const std::string& fileName, const FileMetaData* metaData = nullptr);
 
    void addNtuple(const std::string& fileName);
 
    void addBasf2Status(const std::string& message = "");
 
    void addModuleCallsCount();
 
    void finishBasf2(bool success = true);
 
  private:
 
    std::string    m_fileName;  
    nlohmann::json m_json;      
    double m_basf2StartTime;    
    MetadataService();
 
    MetadataService(const MetadataService&) = delete;
 
    MetadataService& operator=(const MetadataService&) = delete;
 
    void writeJson();
 
  };
 
} //end of namespace Belle2