Merge pull request #11149 from perrozzi/from-CMSSW_7_1_19

Changes to PartonShowerBsHepMCFilter and LHEGenericFilter

GeneratorInterface/Core/BuildFile.xml

@@ -3,6 +3,7 @@
 <use   name="FWCore/Utilities"/>
 <use   name="SimDataFormats/GeneratorProducts"/>
 <use   name="GeneratorInterface/LHEInterface"/>
+<use   name="heppdt"/>
 <use   name="boost"/>
 <use   name="clhep"/>
 <use   name="lhapdf"/>

GeneratorInterface/Core/interface/PartonShowerBsHepMCFilter.h

@@ -0,0 +1,30 @@
+/**
+ ** Description: Filter gen particles based on pdg_id and status code
+ ** 
+ ** @author bortigno
+ ** @version 1.0 02.04.2015
+*/
+
+
+#ifndef __PARTONSHOWERBSHEPMCFILTER__
+#define __PARTONSHOWERBSHEPMCFILTER__
+
+
+#include "GeneratorInterface/Core/interface/BaseHepMCFilter.h"
+#include "FWCore/ParameterSet/interface/ParameterSet.h"
+
+class PartonShowerBsHepMCFilter : public BaseHepMCFilter{
+
+public:
+
+  PartonShowerBsHepMCFilter( const edm::ParameterSet & );
+  ~PartonShowerBsHepMCFilter();
+
+  virtual bool filter(const HepMC::GenEvent* evt);
+
+private:
+
+};
+
+
+#endif

GeneratorInterface/Core/src/HepMCFilterDriver.cc

@@ -1,5 +1,7 @@
 #include "GeneratorInterface/Core/interface/HepMCFilterDriver.h"
 #include "GeneratorInterface/Core/interface/GenericDauHepMCFilter.h"
+#include "GeneratorInterface/Core/interface/PartonShowerBsHepMCFilter.h"
+
 
 #include "FWCore/MessageLogger/interface/MessageLogger.h"
 
@@ -21,6 +23,9 @@ HepMCFilterDriver::HepMCFilterDriver(const edm::ParameterSet& pset) :
   if (filterName=="GenericDauHepMCFilter") {
     filter_ = new GenericDauHepMCFilter(filterParameters);
   }
+  else if (filterName=="PartonShowerBsHepMCFilter") {
+    filter_ = new PartonShowerBsHepMCFilter(filterParameters);
+  }
   else {
     edm::LogError("HepMCFilterDriver")<< "Invalid HepMCFilter name:" << filterName;
   }

GeneratorInterface/Core/src/PartonShowerBsHepMCFilter.cc

@@ -0,0 +1,48 @@
+#include "GeneratorInterface/Core/interface/PartonShowerBsHepMCFilter.h"
+#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
+#include <iostream>
+#include "HepPDT/ParticleID.hh"
+
+
+using namespace edm;
+using namespace std;
+
+
+//constructor
+PartonShowerBsHepMCFilter::PartonShowerBsHepMCFilter(const edm::ParameterSet& iConfig) 
+{
+
+}
+
+
+//destructor
+PartonShowerBsHepMCFilter::~PartonShowerBsHepMCFilter()
+{
+
+}
+
+//
+// member functions
+//
+
+// ------------ method called to produce the data  ------------
+bool PartonShowerBsHepMCFilter::filter(const HepMC::GenEvent* evt)
+{
+
+  // loop over gen particles
+  for ( HepMC::GenEvent::particle_const_iterator p = evt->particles_begin(); p != evt->particles_end(); ++p ){
+
+    // check only status 2 particles
+    if( (*p)->status()==2 ){
+      // if one of the status 2 particles is a B-hadron, accept the event
+      HepPDT::ParticleID pid((*p)->pdg_id());
+      if( pid.hasBottom() ){
+        return true; // accept event
+      }
+    }
+
+  }
+
+  return false; // skip event
+
+}

GeneratorInterface/GenFilters/interface/LHEGenericFilter.h

@@ -49,10 +49,14 @@ class LHEGenericFilter : public edm::EDFilter {
 
   edm::EDGetTokenT<LHEEventProduct> src_;
   int numRequired_;                // number of particles required to pass filter
-  bool acceptMore_;                // if true (default), accept numRequired or more.
-                                   // if false, accept events with exactly equal to numRequired.
+  std::string acceptLogic_;        // LT  meaning <
+                                   // GT          >
+                                   // EQ          =
+                                   // NE          !=
   std::vector<int> particleID_;    // vector of particle IDs to look for
   int totalEvents_;                // counters
   int passedEvents_;
+  enum logic_ { LT, GT, EQ, NE};
+  logic_ whichlogic;
 };
 #endif

GeneratorInterface/GenFilters/python/LHEGenericFilter_cfi.py

@@ -0,0 +1,8 @@
+import FWCore.ParameterSet.Config as cms
+
+lheGenericFilter = cms.EDFilter("LHEGenericFilter",
+    src = cms.InputTag("source"),
+    NumRequired = cms.int32(2),
+    ParticleID = cms.vint32(5),
+    AcceptLogic = cms.string("LT") # LT meaning < NumRequired, GT >, EQ =, NE !=
+)                                

GeneratorInterface/GenFilters/src/LHEGenericFilter.cc

@@ -1,20 +1,30 @@
 #include "GeneratorInterface/GenFilters/interface/LHEGenericFilter.h"
 
+using namespace edm;
+using namespace std;
+
 LHEGenericFilter::LHEGenericFilter(const edm::ParameterSet& iConfig) :
-  numRequired_(iConfig.getParameter<int>("NumRequired")),
-  acceptMore_(iConfig.getParameter<bool>("AcceptMore")),
-  particleID_(iConfig.getParameter< std::vector<int> >("ParticleID")),
-  totalEvents_(0), passedEvents_(0)
+numRequired_(iConfig.getParameter<int>("NumRequired")),
+acceptLogic_(iConfig.getParameter<std::string>("AcceptLogic")),
+particleID_(iConfig.getParameter< std::vector<int> >("ParticleID")),
+totalEvents_(0), passedEvents_(0)
 {
   //here do whatever other initialization is needed
   src_ = consumes<LHEEventProduct>(iConfig.getParameter<edm::InputTag>("src"));
+
+  if(acceptLogic_.compare("LT")==0) whichlogic = LT;
+  else if(acceptLogic_.compare("GT")==0) whichlogic = GT;
+  else if(acceptLogic_.compare("EQ")==0) whichlogic = EQ;
+  else if(acceptLogic_.compare("NE")==0) whichlogic = NE;
+  else edm::LogError  ("cat_A")   << "wrong input for AcceptLogic string";
+
 }
 
 LHEGenericFilter::~LHEGenericFilter()
 {
- 
-   // do anything here that needs to be done at destruction time
-   // (e.g. close files, deallocate resources etc.)
+
+  // do anything here that needs to be done at destruction time
+  // (e.g. close files, deallocate resources etc.)
 
 }
 
@@ -29,20 +39,25 @@ bool LHEGenericFilter::filter(edm::Event& iEvent, const edm::EventSetup& iSetup)
   int nFound = 0;
 
   for (int i = 0; i < EvtHandle->hepeup().NUP; ++i) {
-     if (EvtHandle->hepeup().ISTUP[i] != 1) {
-       continue;
-     }    
+    if (EvtHandle->hepeup().ISTUP[i] != 1) { // keep only outgoing particles
+      continue;
+    }
     for (unsigned int j = 0; j < particleID_.size(); ++j) {
       if (particleID_[j] == 0 || abs(particleID_[j]) == abs(EvtHandle->hepeup().IDUP[i]) ) {
-	nFound++;
-	break; // only match a given particle once!
+        nFound++;
+        break; // only match a given particle once!
       }
     } // loop over targets
 
-    if (acceptMore_ && nFound == numRequired_) break; // stop looking if we don't mind having more
   } // loop over particles
 
-  if (nFound == numRequired_) {
+  // event accept/reject logic
+  if (
+         (whichlogic==LT && nFound < numRequired_)
+      || (whichlogic==GT && nFound > numRequired_)
+      || (whichlogic==EQ && nFound == numRequired_)
+      || (whichlogic==NE && nFound != numRequired_)
+      ) {
     passedEvents_++;
     return true;
   } else {
@@ -54,7 +69,7 @@ bool LHEGenericFilter::filter(edm::Event& iEvent, const edm::EventSetup& iSetup)
 // ------------ method called once each job just after ending the event loop  ------------
 void LHEGenericFilter::endJob() {
   edm::LogInfo("LHEGenericFilter") << "=== Results of LHEGenericFilter: passed "
-                                        << passedEvents_ << "/" << totalEvents_ << " events" << std::endl;
+  << passedEvents_ << "/" << totalEvents_ << " events" << std::endl;
 }
 
 //define this as a plug-in