File indexing completed on 2024-04-06 12:13:58
0001 #include "GeneratorInterface/Pythia8Interface/interface/SLHAReaderBase.h"
0002 #include "FWCore/Utilities/interface/Exception.h"
0003
0004 #include <sstream>
0005
0006 #include "TFile.h"
0007 #include "TTree.h"
0008
0009 SLHAReaderBase::SLHAReaderBase(const edm::ParameterSet& conf) {
0010 auto filename = conf.getParameter<std::string>("file");
0011 file_ = TFile::Open(filename.c_str());
0012 if (!file_)
0013 throw cms::Exception("MissingFile") << "Could not open file " << filename;
0014
0015 auto treename = conf.getParameter<std::string>("tree");
0016 tree_ = (TTree*)file_->Get(treename.c_str());
0017 if (!tree_)
0018 throw cms::Exception("MissingTree") << "Could not get tree " << treename << " from file " << filename;
0019 }
0020
0021 SLHAReaderBase::~SLHAReaderBase() { file_->Close(); }
0022
0023 std::vector<std::string> SLHAReaderBase::splitline(const std::string& line, char delim) {
0024 std::stringstream ss(line);
0025 std::string field;
0026 std::vector<std::string> fields;
0027 while (getline(ss, field, delim)) {
0028 fields.push_back(field);
0029 }
0030 return fields;
0031 }
0032
0033 EDM_REGISTER_PLUGINFACTORY(SLHAReaderFactory, "SLHAReaderFactory");
