DQMStreamerReader.h

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#ifndef DQMServices_StreamerIO_DQMStreamerReader_h
#define DQMServices_StreamerIO_DQMStreamerReader_h

#include "FWCore/ServiceRegistry/interface/Service.h"
#include "IOPool/Streamer/interface/StreamerInputSource.h"
#include "IOPool/Streamer/interface/StreamerInputFile.h"
#include "IOPool/Streamer/interface/MsgTools.h"

#include "DQMFileIterator.h"
#include "DQMMonitoringService.h"
#include "TriggerSelector.h"

#include "boost/shared_ptr.hpp"
#include "boost/filesystem.hpp"

#include <memory>
#include <string>
#include <vector>
#include <iterator>
#include <boost/property_tree/json_parser.hpp>
#include <boost/property_tree/ptree.hpp>

namespace dqmservices {

class DQMStreamerReader : public edm::StreamerInputSource {
 public:
  DQMStreamerReader(edm::ParameterSet const& pset,
                    edm::InputSourceDescription const& desc);
  virtual ~DQMStreamerReader();

  bool newHeader();
  static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);

  typedef std::vector<std::string> Strings;

 protected:
  virtual bool checkNextEvent(); /* from raw input source */
  virtual void skip(int toSkip); /* from raw input source */

 private:
  // our own, but we do inherit reset(),
  // which will break things if called
  void reset_();

  void openFile_(const DQMFileIterator::LumiEntry& entry);
  void closeFile_(const std::string& reason);

  bool openNextFile_();

  InitMsgView const* getHeaderMsg();
  EventMsgView const* getEventMsg();

  EventMsgView const* prepareNextEvent();
  bool prepareNextFile();
  bool acceptEvent( const EventMsgView*);
 
  bool triggerSel();
  bool matchTriggerSel(Strings const& tnames);
  bool acceptAllEvt_;
  bool matchTriggerSel_;

  unsigned int runNumber_;
  std::string runInputDir_;
  std::string streamLabel_;
  Strings hltSel_;

  unsigned int processedEventPerLs_;
  unsigned int minEventsPerLs_;

  bool flagSkipFirstLumis_;
  bool flagEndOfRunKills_;
  bool flagDeleteDatFiles_;

  DQMFileIterator fiterator_;

  struct OpenFile {
    std::unique_ptr<edm::StreamerInputFile> streamFile_;
    DQMFileIterator::LumiEntry lumi_;

    bool open() {
      return (streamFile_.get() != nullptr);
    }

  } file_;

  boost::shared_ptr<edm::EventSkipperByID> eventSkipperByID_;
  std::shared_ptr<TriggerSelector> eventSelector_;

  /* this is for monitoring */
  edm::Service<DQMMonitoringService> mon_;
};

}  //end-of-namespace-def

#endif