DBFileHandler.hh

#ifndef DBFileHandler_h
#define DBFileHandler_h

//#include "lccd.h"
#include "ConditionsHandlerBase.hh"

using namespace lcio ;

namespace lccd {
  

  // some convenient typedefs
  typedef std::pair<LCCDTimeStamp,LCCDTimeStamp> ValidityInterval ;
  typedef std::vector< ValidityInterval  > ValidityVector ;
  

  class DBFileHandler : public ConditionsHandlerBase {
    
  public:

    DBFileHandler( const DBFileHandler& ) = delete ;
    DBFileHandler& operator=( const DBFileHandler& ) = delete ;

    DBFileHandler(const std::string& fileName, 
                      const std::string& name,
                      const std::string& inputCollection="" ) ;

    
    virtual ~DBFileHandler() ;
    

    virtual void registerDefaultCollection( lcio::LCCollection* col);    


    virtual lcio::LCCollection* defaultCollection() { return _defaultCollection; } ;    

        
    virtual lcio::LCCollection* lastValidCollection() { return _lastValidCollection; } ;

    virtual void update( LCCDTimeStamp timestamp ) ;
    

  protected :
    
    DBFileHandler() {} 

    void init() ;

    int findEventNumber( LCCDTimeStamp timeStamp ) ;

    // ----  data members ------

    std::string _fileName{} ;

    std::string _inputCollection{} ;

    ValidityVector _valVec{} ;

    LCReader* _lcReader = nullptr ;

    lcio::LCCollection* _defaultCollection = nullptr ;
    
    lcio::LCCollection* _lastValidCollection = nullptr ;

  };
}  //end namespace

#endif // DBFileHandler_h