/data/refman/pasoursint/CMSSW_5_3_0/src/Alignment/SurveyAnalysis/interface/SurveyPxbImageReader.h

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#ifndef GUARD_surveypxbimagereader_h
#define GUARD_surveypxbimagereader_h

#include <sstream>
#include <vector>
#include <fstream>
#include <string>

template <class T> class SurveyPxbImageReader
{
    public:
                typedef std::vector<T> measurements_t;

        // Constructors
        SurveyPxbImageReader() {};
        SurveyPxbImageReader(std::ifstream &infile, measurements_t &measurements, SurveyPxbImage::count_t reserve = 800)
        {
                read(infile, measurements, reserve);
        };

        SurveyPxbImageReader(std::string filename, measurements_t &measurements, SurveyPxbImage::count_t reserve = 800)
        { 
                std::ifstream infile(filename.c_str());
                if (!infile)
                {
                        std::cerr << "Cannot open file " << filename
                             << " - operation aborted." << std::endl;
                }
                read(infile, measurements, reserve);
        };
        
        SurveyPxbImage::count_t read(std::ifstream &infile, measurements_t &measurements, SurveyPxbImage::count_t reserve = 830)
        {

                // prepare the measurements vector
                measurements.clear();
                measurements.reserve(reserve);

                // container for the current line
                std::string aLine;

            // loop over lines of input file
            while (std::getline(infile,aLine))
            {
                // strip off everything after a hash
                std::string stripped = "";
                std::string::iterator iter = std::find(aLine.begin(), aLine.end(), '#');
                std::copy(aLine.begin(), iter, std::back_inserter(stripped));
                // read one measurment and add to vector if successfull
                std::istringstream iss(stripped, std::istringstream::in);
                T curMeas(iss);
                if (curMeas.isValid())
                {
                     measurements.push_back(curMeas);
                }
            }

                return measurements.size();
        }

    protected:

};

#endif