Integration/plugins/ThinningDSVThingProducer.cc

0001 #include "DataFormats/Common/interface/DetSetVectorNew.h"
0002 #include "DataFormats/Common/interface/Handle.h"
0003 #include "DataFormats/Common/interface/ThinnedRefSet.h"
0004 #include "DataFormats/TestObjects/interface/Thing.h"
0005 #include "DataFormats/TestObjects/interface/TrackOfDSVThings.h"
0006 #include "FWCore/Framework/interface/ConsumesCollector.h"
0007 #include "FWCore/Framework/interface/Event.h"
0008 #include "FWCore/Framework/interface/EventSetup.h"
0009 #include "FWCore/Framework/interface/MakerMacros.h"
0010 #include "FWCore/Framework/interface/stream/ThinningProducer.h"
0011 #include "FWCore/ParameterSet/interface/ParameterSet.h"
0012 #include "FWCore/Utilities/interface/EDGetToken.h"
0013 #include "FWCore/Utilities/interface/Exception.h"
0014 #include "FWCore/Utilities/interface/InputTag.h"
0015 #include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
0016
0017 #include <string>
0018
0019 namespace edmtest {
0020
0021   class ThinningDSVThingSelector {
0022   public:
0023     ThinningDSVThingSelector(edm::ParameterSet const& pset, edm::ConsumesCollector&& cc);
0024
0025     static void fillPSetDescription(edm::ParameterSetDescription& desc);
0026
0027     void preChoose(edm::Handle<edmNew::DetSetVector<Thing>> tc, edm::Event const& event, edm::EventSetup const& es);
0028
0029     bool choose(unsigned int iIndex, edmtest::Thing const& iItem) const;
0030
0031     void reset() { keysToSave_.clear(); }
0032
0033   private:
0034     edm::EDGetTokenT<TrackOfDSVThingsCollection> const trackToken_;
0035     edm::ThinnedRefSet<edmNew::DetSetVector<Thing>> keysToSave_;
0036     unsigned int const offsetToValue_;
0037     unsigned int const expectedDetSets_;
0038     unsigned int const expectedDetSetSize_;
0039     int const slimmedValueFactor_;
0040   };
0041
0042   ThinningDSVThingSelector::ThinningDSVThingSelector(edm::ParameterSet const& pset, edm::ConsumesCollector&& cc)
0043       : trackToken_(cc.consumes<TrackOfDSVThingsCollection>(pset.getParameter<edm::InputTag>("trackTag"))),
0044         keysToSave_(pset.getParameter<bool>("thinnedRefSetIgnoreInvalidParentRef")
0045                         ? edm::ThinnedRefSetMode::ignoreInvalidParentRef
0046                         : edm::ThinnedRefSetMode::throwOnInvalidParentRef),
0047         offsetToValue_(pset.getParameter<unsigned int>("offsetToValue")),
0048         expectedDetSets_(pset.getParameter<unsigned int>("expectedDetSets")),
0049         expectedDetSetSize_(pset.getParameter<unsigned int>("expectedDetSetSize")),
0050         slimmedValueFactor_(pset.getParameter<int>("slimmedValueFactor")) {}
0051
0052   void ThinningDSVThingSelector::fillPSetDescription(edm::ParameterSetDescription& desc) {
0053     desc.add<edm::InputTag>("trackTag");
0054     desc.add<unsigned int>("offsetToValue", 0);
0055     desc.add<unsigned int>("expectedDetSets");
0056     desc.add<unsigned int>("expectedDetSetSize");
0057     desc.add<int>("slimmedValueFactor", 1);
0058     desc.add<bool>("thinnedRefSetIgnoreInvalidParentRef", false);
0059   }
0060
0061   void ThinningDSVThingSelector::preChoose(edm::Handle<edmNew::DetSetVector<Thing>> tc,
0062                                            edm::Event const& event,
0063                                            edm::EventSetup const& es) {
0064     auto filler = keysToSave_.fill(edm::RefProd(tc), event.productGetter());
0065     for (auto const& track : event.get(trackToken_)) {
0066       filler.insert(track.ref1);
0067       filler.insert(track.ref2);
0068     }
0069
0070     // Just checking to see if the collection got passed in. Not really using it for anything.
0071     if (tc->size() != expectedDetSets_) {
0072       throw cms::Exception("TestFailure") << "ThinningDSVThingSelector::preChoose, number of DetSets = " << tc->size()
0073                                           << " expected = " << expectedDetSets_;
0074     }
0075     for (auto const& ds : *tc) {
0076       if (ds.size() != expectedDetSetSize_) {
0077         throw cms::Exception("TestFailure")
0078             << "ThinningDSVThingSelector::preChoose, number of elements in DetSet with id " << ds.id() << " = "
0079             << ds.size() << " expected = " << expectedDetSetSize_;
0080       }
0081     }
0082   }
0083
0084   bool ThinningDSVThingSelector::choose(unsigned int iIndex, edmtest::Thing const& iItem) const {
0085     // Just checking to see the element in the container got passed in OK. Not really using it.
0086     // Just using %10 because it coincidentally works with the arbitrary numbers I picked, no meaning really.
0087     auto const expected = slimmedValueFactor_ * (iIndex + offsetToValue_);
0088     if (static_cast<unsigned>(iItem.a % 10) != static_cast<unsigned>(expected % 10)) {
0089       throw cms::Exception("TestFailure") << "ThinningDSVThingSelector::choose, item content = " << iItem.a
0090                                           << " index = " << iIndex << " expected " << expected;
0091     }
0092
0093     // Save the Things referenced by the Tracks
0094     return keysToSave_.contains(iIndex);
0095   }
0096 }  // namespace edmtest
0097
0098 using ThinningDSVThingProducer =
0099     edm::ThinningProducer<edmNew::DetSetVector<edmtest::Thing>, edmtest::ThinningDSVThingSelector>;
0100 DEFINE_FWK_MODULE(ThinningDSVThingProducer);