FileCatalog.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 <map>
#include <string>
 
namespace Belle2 {
  class FileMetaData;

  class FileCatalog {
 
  public:

    static FileCatalog& Instance();

    virtual bool registerFile(const std::string& fileName, FileMetaData& metaData, const std::string& oldLFN = "");

    virtual bool getMetaData(std::string& fileName, FileMetaData& metaData);

    virtual std::string getPhysicalFileName(const std::string& lfn);
 
  private:

    FileCatalog();
 
    typedef std::map<std::string, std::pair<std::string, FileMetaData>> FileMap;   

    bool readCatalog(FileMap& fileMap);

    bool writeCatalog(const FileMap& fileMap);
 
    std::string m_fileName;   
  };

} //end of namespace Belle2