|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
// -*- C++ -*-
//
// Package: LHEGenericFilter
// Class: LHEGenericFilter
//
/*
Description: Filter to select events with an arbitrary number of given particle(s).
Implementation: derived from MCSingleParticleFilter
*/
//
// Original Author: Roberto Covarelli
// Created: Wed Feb 29 04:22:16 CST 2012
//
//
#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/global/EDFilter.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/EDGetToken.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "SimDataFormats/GeneratorProducts/interface/LHEEventProduct.h"
#include <cmath>
#include <cstdlib>
#include <string>
#include <vector>
//
// class declaration
//
class LHEGenericFilter : public edm::global::EDFilter<> {
public:
explicit LHEGenericFilter(const edm::ParameterSet&);
private:
bool filter(edm::StreamID, edm::Event&, const edm::EventSetup&) const override;
// ----------member data ---------------------------
const edm::EDGetTokenT<LHEEventProduct> src_;
const int numRequired_; // number of particles required to pass filter
const std::vector<int> particleID_; // vector of particle IDs to look for
enum Logic { LT, GT, EQ, NE };
Logic whichlogic;
};
using namespace std;
LHEGenericFilter::LHEGenericFilter(const edm::ParameterSet& iConfig)
: src_(consumes<LHEEventProduct>(iConfig.getParameter<edm::InputTag>("src"))),
numRequired_(iConfig.getParameter<int>("NumRequired")),
particleID_(iConfig.getParameter<std::vector<int> >("ParticleID")) {
// LT meaning <
// GT >
// EQ =
// NE !=
std::string acceptLogic = iConfig.getParameter<std::string>("AcceptLogic");
if (acceptLogic == "LT")
whichlogic = LT;
else if (acceptLogic == "GT")
whichlogic = GT;
else if (acceptLogic == "EQ")
whichlogic = EQ;
else if (acceptLogic == "NE")
whichlogic = NE;
else {
edm::LogError("cat_A") << "wrong input for AcceptLogic string";
// at least initialize it to something reproducible
whichlogic = LT;
}
}
// ------------ method called to skim the data ------------
bool LHEGenericFilter::filter(edm::StreamID, edm::Event& iEvent, const edm::EventSetup&) const {
edm::Handle<LHEEventProduct> EvtHandle;
iEvent.getByToken(src_, EvtHandle);
int nFound = 0;
for (int i = 0; i < EvtHandle->hepeup().NUP; ++i) {
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!
}
} // loop over targets
} // loop over particles
// event accept/reject logic
if ((whichlogic == LT && nFound < numRequired_) || (whichlogic == GT && nFound > numRequired_) ||
(whichlogic == EQ && nFound == numRequired_) || (whichlogic == NE && nFound != numRequired_)) {
return true;
} else {
return false;
}
}
//define this as a plug-in
DEFINE_FWK_MODULE(LHEGenericFilter);
|