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CSCTFConfigProducer.cc

Go to the documentation of this file.

#include <L1TriggerConfig/CSCTFConfigProducers/interface/CSCTFConfigProducer.h>
#include <FWCore/MessageLogger/interface/MessageLogger.h>

#include <stdio.h>
#include <errno.h>
#include <iostream>
#include <fstream>

CSCTFConfigProducer::CSCTFConfigProducer(const edm::ParameterSet& pset) {
        const char *name[12] = {"registersSP1", "registersSP2", "registersSP3", "registersSP4",
                                                        "registersSP5", "registersSP6", "registersSP7", "registersSP8",
                                                        "registersSP9", "registersSP10","registersSP11","registersSP12"};
        for(int sp=0; sp<12; sp++){
                std::vector<std::string> regs = pset.getParameter<std::vector<std::string> >(name[sp]);
                for(std::vector<std::string>::const_iterator line=regs.begin(); line!=regs.end(); line++)
                        registers[sp] += *line + "\n";
        }
        alignment  = pset.getParameter< std::vector<double> >("alignment");
        ptLUT_path = pset.getParameter< std::string >        ("ptLUT_path");
        setWhatProduced(this, &CSCTFConfigProducer::produceL1MuCSCTFConfigurationRcd);
        setWhatProduced(this, &CSCTFConfigProducer::produceL1MuCSCTFAlignmentRcd);
        setWhatProduced(this, &CSCTFConfigProducer::produceL1MuCSCPtLutRcd);
}

std::auto_ptr<L1MuCSCTFConfiguration> CSCTFConfigProducer::produceL1MuCSCTFConfigurationRcd(const L1MuCSCTFConfigurationRcd& iRecord){
        std::auto_ptr<L1MuCSCTFConfiguration> config = std::auto_ptr<L1MuCSCTFConfiguration>( new L1MuCSCTFConfiguration(registers) );
        return config;
}

std::auto_ptr<L1MuCSCTFAlignment> CSCTFConfigProducer::produceL1MuCSCTFAlignmentRcd(const L1MuCSCTFAlignmentRcd& iRecord){
        std::auto_ptr<L1MuCSCTFAlignment> al = std::auto_ptr<L1MuCSCTFAlignment>( new L1MuCSCTFAlignment(alignment) );
        return al;
}

std::auto_ptr<L1MuCSCPtLut> CSCTFConfigProducer::produceL1MuCSCPtLutRcd(const L1MuCSCPtLutRcd& iRecord){
        std::auto_ptr<L1MuCSCPtLut> pt_lut = std::auto_ptr<L1MuCSCPtLut>( new L1MuCSCPtLut() );

        if( ptLUT_path.length() ){
                        readLUT(ptLUT_path, (unsigned short *)pt_lut->pt_lut, 1<<21); //CSCBitWidths::kPtAddressWidth
        } else {
                throw cms::Exception("Undefined pT LUT")<<"CSCTFConfigProducer is unable to generate LUTs on the fly.\nSpecify full LUT file names or just avoid using CSCTFConfigProducer by uncommenting PTLUT parameter sets in L1Trigger/CSCTrackFinder configuration."<<std::endl;
        }
        return pt_lut;
}

void CSCTFConfigProducer::readLUT(std::string path, unsigned short* lut, unsigned long length){
        // Reading
        if( path.find(".bin") != std::string::npos ) { // Binary format
                std::ifstream file(path.c_str(), std::ios::binary);
                file.read((char*)lut,length*sizeof(unsigned short));
                if( file.fail() )
                        throw cms::Exception("Reading error")<<"CSCTFConfigProducer cannot read "<<length<<" words from "<<path<<" (errno="<<errno<<")"<<std::endl;
                if( (unsigned int)file.gcount() != length*sizeof(unsigned short) )
                        throw cms::Exception("Incorrect LUT size")<<"CSCTFConfigProducer read "<<(file.gcount()/sizeof(unsigned short))<<" words from "<<path<<" instead of "<<length<<" (errno="<<errno<<")"<<std::endl;
                file.close();
        } else {
                std::ifstream file(path.c_str());
                if( file.fail() )
                        throw cms::Exception("Cannot open file")<<"CSCTFConfigProducer cannot open "<<path<<" (errno="<<errno<<")"<<std::endl;
                unsigned int address=0;
                for(address=0; !file.eof() && address<length; address++)
                        file >> lut[address]; // Warning: this may throw non-cms like exception
                if( address!=length ) throw cms::Exception("Incorrect LUT size")<<"CSCTFConfigProducer read "<<address<<" words from "<<path<<" instead of "<<length<<std::endl;
                file.close();
        }
        LogDebug("CSCTFConfigProducer::readLUT")<<" read from "<<path<<" "<<length<<" words"<<std::endl;
}

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