/data/refman/pasoursint/CMSSW_4_1_8_patch12/src/Alignment/OfflineValidation/plugins/Tracker_OldtoNewConverter.cc

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// -*- C++ -*-
//
// Package:    Tracker_OldtoNewConverter.cc
// Class:      Tracker_OldtoNewConverter
// 
//
// Original Author:  Nhan Tran
//         Created:  Mon Jul 16m 16:56:34 CDT 2007
// $Id: Tracker_OldtoNewConverter.cc,v 1.2 2010/01/04 18:24:37 mussgill Exp $
//
//

// system include files
#include "FWCore/Framework/interface/EDAnalyzer.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/MakerMacros.h"


#include <algorithm>
#include "TTree.h"
#include "TFile.h"

#include "FWCore/MessageLogger/interface/MessageLogger.h"


#include <fstream>
#include <iostream>

//
// class decleration
//

class Tracker_OldtoNewConverter : public edm::EDAnalyzer {
public:
        explicit Tracker_OldtoNewConverter(const edm::ParameterSet&);
        ~Tracker_OldtoNewConverter();
        
        
private:
        virtual void beginJob();
        virtual void analyze(const edm::Event &iEvent, const edm::EventSetup &iSetup);
        virtual void endJob() ;
        
        void createMap();
        void addBranches();
        
        // ----------member data ---------------------------

        std::string m_conversionType;
        std::string m_textFile;
        std::string m_inputFile;
        std::string m_outputFile;
        std::string m_treeName;
        
        std::map< uint32_t, uint32_t > theMap;

        TFile* m_inputTFile;
        TFile* m_outputTFile;
        TTree* m_inputTree;
        TTree* m_outputTree;
        
        
        uint32_t rawid_i, rawid_f;
        //int rawid_i, rawid_f;
        double x_i, y_i, z_i, a_i, b_i, c_i;
        double x_f, y_f, z_f, a_f, b_f, c_f;
        
        
};

//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
Tracker_OldtoNewConverter::Tracker_OldtoNewConverter(const edm::ParameterSet& iConfig)
{
        m_conversionType = iConfig.getUntrackedParameter< std::string > ("conversionType");
        m_inputFile = iConfig.getUntrackedParameter< std::string > ("inputFile");
        m_outputFile = iConfig.getUntrackedParameter< std::string > ("outputFile");
        m_textFile = iConfig.getUntrackedParameter< std::string > ("textFile");
        m_treeName = iConfig.getUntrackedParameter< std::string > ("treeName");
}


Tracker_OldtoNewConverter::~Tracker_OldtoNewConverter()
{}


//
// member functions
//

// ------------ method called to for each event  ------------
void Tracker_OldtoNewConverter::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup)
{}


// ------------ method called once each job just before starting event loop  ------------
void Tracker_OldtoNewConverter::beginJob()
{
        
        m_inputTFile = new TFile(m_inputFile.c_str());
        m_outputTFile = new TFile(m_outputFile.c_str(),"RECREATE");

        m_inputTree = (TTree*) m_inputTFile->Get(m_treeName.c_str());
        m_outputTree = new TTree(m_treeName.c_str(), m_treeName.c_str());
        
        createMap();
        addBranches();

        uint32_t nEntries = m_inputTree->GetEntries();
        uint32_t iter = 0;
        for (uint32_t i = 0; i < nEntries; ++i){
                m_inputTree->GetEntry(i);
                std::map< uint32_t, uint32_t >::const_iterator it = theMap.find(rawid_i);
                
                if (it == theMap.end()){
                        edm::LogInfo("ERROR") << "Error: couldn't find rawId: " << rawid_i;
                        iter++;
                }
                else{
                        rawid_f = (it)->second;
                        x_f = x_i;
                        y_f = y_i;
                        z_f = z_i;
                        a_f = a_i;
                        b_f = b_i;
                        c_f = c_i;
                        m_outputTree->Fill();
                }

        }
        edm::LogInfo("errors") << "Couldn't find: " << iter;
        m_outputTFile->cd();
        m_outputTree->Write();
        m_outputTFile->Close();
}



void Tracker_OldtoNewConverter::createMap() {

        std::ifstream myfile( m_textFile.c_str() );
        if (!myfile.is_open())
                throw cms::Exception("FileAccess") << "Unable to open input text file";

        uint32_t oldid;
        uint32_t newid;

        uint32_t ctr = 0;
        while( !myfile.eof() && myfile.good() ){

                myfile >> oldid >> newid;

                //depends on conversion type: OldtoNew or NewtoOld
                std::pair< uint32_t, uint32_t > pairType;
                if (m_conversionType == "OldtoNew") {pairType.first = oldid; pairType.second = newid;}
                if (m_conversionType == "NewtoOld") {pairType.first = newid; pairType.second = oldid;}


                theMap.insert( pairType );

                if (myfile.fail()) break;

                ctr++;
        }
        edm::LogInfo("Check") << ctr << " alignables read.";
}

void Tracker_OldtoNewConverter::addBranches(){

        m_inputTree->SetBranchAddress("rawid", &rawid_i);
        m_inputTree->SetBranchAddress("x", &x_i);
        m_inputTree->SetBranchAddress("y", &y_i);
        m_inputTree->SetBranchAddress("z", &z_i);
        m_inputTree->SetBranchAddress("alpha", &a_i);
        m_inputTree->SetBranchAddress("beta", &b_i);
        m_inputTree->SetBranchAddress("gamma", &c_i);

        m_outputTree->Branch("rawid", &rawid_f, "rawid/I");
        m_outputTree->Branch("x", &x_f, "x/D");
        m_outputTree->Branch("y", &y_f, "y/D");
        m_outputTree->Branch("z", &z_f, "z/D");
        m_outputTree->Branch("alpha", &a_f, "alpha/D");
        m_outputTree->Branch("beta", &b_f, "beta/D");
        m_outputTree->Branch("gamma", &c_f, "gamma/D");

}


// ------------ method called once each job just after ending the event loop  ------------
void Tracker_OldtoNewConverter::endJob() {
}



//define this as a plug-in
DEFINE_FWK_MODULE(Tracker_OldtoNewConverter);