OutputProcessBlockHelper.h

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#ifndef FWCore_Common_OutputProcessBlockHelper_h
#define FWCore_Common_OutputProcessBlockHelper_h
 
#include "DataFormats/Provenance/interface/ProvenanceFwd.h"
 
#include <set>
#include <string>
#include <vector>
 
namespace edm {
 
  class ProcessBlockHelperBase;
 
  class OutputProcessBlockHelper {
  public:
    std::vector<std::string> const& processesWithProcessBlockProducts() const {
      return processesWithProcessBlockProducts_;
    }
 
    void updateAfterProductSelection(std::set<std::string> const& processesWithKeptProcessBlockProducts,
                                     ProcessBlockHelperBase const&);
 
    void fillCacheIndices(StoredProcessBlockHelper&) const;
 
    bool productsFromInputKept() const { return productsFromInputKept_; }
 
    ProcessBlockHelperBase const* processBlockHelper() const { return processBlockHelper_; }
 
  private:
    // The next two functions are intended to be used only for testing purposes
    friend class TestOneOutput;
    std::vector<unsigned int> const& translateFromStoredIndex() const { return translateFromStoredIndex_; }
    unsigned int nAddedProcesses() const { return nAddedProcesses_; }
 
    void setStoredProcessOffset(unsigned int nInputProcesses,
                                std::vector<std::vector<unsigned int>> const& nEntries,
                                std::vector<unsigned int>& storedProcessOffset) const;
 
    void setProcessOffset(unsigned int iFile,
                          unsigned int nInputProcesses,
                          std::vector<std::vector<unsigned int>> const& nEntries,
                          std::vector<unsigned int>& processOffset) const;
 
    void setStoredFileInProcessOffset(unsigned int iFile,
                                      unsigned int nInputProcesses,
                                      std::vector<std::vector<unsigned int>> const& nEntries,
                                      std::vector<unsigned int>& storedFileInProcessOffset) const;
 
    // Includes processes with at least one ProcessBlock branch present
    // in the output file
    std::vector<std::string> processesWithProcessBlockProducts_;
 
    // This will have the value of 0 or 1, except for the SubProcess case.
    // This is incremented to 1 if the current process produces new
    // ProcessBlock products and they are kept by the OutputModule.
    unsigned int nAddedProcesses_ = 0;
 
    // Translate from the vector of process names in this class to
    // the one in the ProcessBlockHelper
    std::vector<unsigned int> translateFromStoredIndex_;
 
    // Points to the main ProcessBlockHelper owned by the EventProcessor
    // or SubProcess
    ProcessBlockHelperBase const* processBlockHelper_ = nullptr;
 
    bool productsFromInputKept_ = false;
  };
}  // namespace edm
#endif