IterateNTimesLooper.cc

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// -*- C++ -*-
//
// Package:     Modules
// Class  :     IterateNTimesLooper
//
// Implementation:
//     <Notes on implementation>
//
// Original Author:  Chris Jones
//         Created:  Tue Jul 11 11:16:14 EDT 2006
//

// system include files

// user include files
#include "FWCore/Framework/interface/EDLooper.h"
#include "FWCore/Framework/interface/LooperFactory.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

namespace edm {

  class IterateNTimesLooper : public EDLooper {
  public:
    IterateNTimesLooper(ParameterSet const&);
    ~IterateNTimesLooper() override;

    // ---------- const member functions ---------------------

    // ---------- static member functions --------------------

    // ---------- member functions ---------------------------
    void startingNewLoop(unsigned int) override;
    Status duringLoop(Event const&, EventSetup const&) override;
    Status endOfLoop(EventSetup const&, unsigned int) override;

  private:
    IterateNTimesLooper(IterateNTimesLooper const&) = delete;  // stop default

    IterateNTimesLooper const& operator=(IterateNTimesLooper const&) = delete;  // stop default

    // ---------- member data --------------------------------
    unsigned int max_;
    unsigned int times_;
    bool shouldStop_;
  };

  //
  //
  // constructors and destructor
  //
  IterateNTimesLooper::IterateNTimesLooper(ParameterSet const& iConfig)
      : max_(iConfig.getParameter<unsigned int>("nTimes")), times_(0), shouldStop_(false) {}

  // IterateNTimesLooper::IterateNTimesLooper(IterateNTimesLooper const& rhs) {
  //    // do actual copying here;
  // }

  IterateNTimesLooper::~IterateNTimesLooper() {}

  //
  // assignment operators
  //
  // IterateNTimesLooper const& IterateNTimesLooper::operator=(IterateNTimesLooper const& rhs) {
  //   //An exception safe implementation is
  //   IterateNTimesLooper temp(rhs);
  //   swap(rhs);
  //
  //   return *this;
  // }

  //
  // member functions
  //
  void IterateNTimesLooper::startingNewLoop(unsigned int iIteration) {
    times_ = iIteration;
    if (iIteration >= max_) {
      shouldStop_ = true;
    }
  }

  EDLooper::Status IterateNTimesLooper::duringLoop(Event const&, EventSetup const&) {
    return shouldStop_ ? kStop : kContinue;
  }

  EDLooper::Status IterateNTimesLooper::endOfLoop(EventSetup const&, unsigned int /*iCounter*/) {
    ++times_;
    return (times_ < max_) ? kContinue : kStop;
  }
}  // namespace edm

using edm::IterateNTimesLooper;
DEFINE_FWK_LOOPER(IterateNTimesLooper);