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#ifndef TRIGGERREADER_H
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#define TRIGGERREADER_H
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#include "DataFormats/FWLite/interface/Event.h"
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#include "DataFormats/FWLite/interface/Handle.h"
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#include "DataFormats/Common/interface/TriggerResults.h"
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#include "FWCore/Common/interface/TriggerNames.h"
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#include <string>
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#include <map>
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#include <TString.h>
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#include <TRegexp.h>
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#include <regex.h>
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#include <stdio.h>
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class TriggerReader {
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public:
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TriggerReader(bool passAllEvents=false) : cacheRun(0), passAll(passAllEvents) {}
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void setEvent( fwlite::Event * e) { ev=e;}
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bool accept(const std::string & triggername)
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{
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if(passAll) return true;
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fwlite::Handle<edm::TriggerResults> hTriggerResults;
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hTriggerResults.getByLabel(*ev,"TriggerResults","","HLT");
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regex_t regex;
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int reti;
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reti = regcomp(®ex, triggername.c_str(), 0);
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// reti = regcomp(®ex, "HLT_Ele32_CaloIdVT_CaloIsoT_TrkIdT_TrkIsoT_v.*", 0);
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if( reti ){ std::cerr << "Could not compile regex" << std::endl;}
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std::map<std::string,size_t>::iterator nit;
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if(ev->getRun().run() != cacheRun || nameMap.find(triggername) == nameMap.end())
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{
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cacheRun=ev->getRun().run();
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edm::TriggerNames const& triggerNames = ev->triggerNames(*hTriggerResults);
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std::string oldiname="whatever";
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nit=nameMap.find(triggername);
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if(nit!=nameMap.end() && nit->second < triggerNames.size())
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{
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oldiname=triggerNames.triggerName(nit->second);
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}
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// std::cout << "whatever3" << std::endl;
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// std::cout << "reg1 " << regexec(®ex, oldiname.c_str(), 0, NULL, 0) << std::endl;
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if(nit==nameMap.end() || ( regexec(®ex, oldiname.c_str(), 0, NULL, 0) != 0 )) //; ! oldiname.Contains( TRegexp(triggername)) ) // changed, search it
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{
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std::cout << "searching " << triggername << std::endl;
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for (unsigned i = 0; i < triggerNames.size(); ++i) {
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std::string iname(triggerNames.triggerName(i));
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if( regexec(®ex, iname.c_str(), 0, NULL, 0) == 0 ) //iname.Contains(TRegexp(triggername)) )
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{
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nameMap[triggername]= i;
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std::cout << "FOUND: " << triggerNames.triggerName(i) << " is bit " << i << std::endl;
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}
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}
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}
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}
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nit=nameMap.find(triggername);
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if(nit==nameMap.end())
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{
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std::cout << "ERROR: trigger name not found" << std::endl;
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edm::TriggerNames const& triggerNames = ev->triggerNames(*hTriggerResults);
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for (unsigned i = 0; i < triggerNames.size(); ++i) std::cout << triggerNames.triggerName(i) << " is bit " << i << "looking for: "<< triggername << std::endl;
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return false;
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}
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return hTriggerResults->accept(nit->second);
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}
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private:
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std::map<std::string,size_t> nameMap;
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unsigned int cacheRun;
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fwlite::Event * ev;
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bool passAll;
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};
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#endif
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