InputTagMatch.h

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#ifndef FWCore_Framework_InputTagMatch_h
#define FWCore_Framework_InputTagMatch_h

#include "FWCore/Utilities/interface/InputTag.h"
#include "DataFormats/Provenance/interface/BranchDescription.h"

#include <string>

namespace edm {

  class InputTagMatch {
  public:
    InputTagMatch(edm::InputTag const& inputTag) : inputTag_(inputTag) {}

    bool operator()(edm::BranchDescription const& branchDescription) {
      bool result(true);
      bool match(false);
      if (!inputTag_.label().empty()) {
        match = true;
        result = (result && branchDescription.moduleLabel() == inputTag_.label());
      }
      if (!inputTag_.instance().empty()) {
        match = true;
        result = (result && branchDescription.productInstanceName() == inputTag_.instance());
      }
      if (!inputTag_.process().empty()) {
        match = true;
        result = (result && branchDescription.processName() == inputTag_.process());
      }
      if (match)
        return result;
      return false;
    }

  private:
    edm::InputTag inputTag_;
  };
}  // namespace edm
#endif