publishTrueInfo.cc

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// gstreamer
#include "gstreamerCSVFactory.h"
#include "gstreamerConventions.h"
 
// Implementation summary:
// Flatten event-level true-information detector data into one CSV row per hit.
 
bool GstreamerCsvFactory::publishEventTrueInfoDataImpl(const std::string&                       detectorName,
                                                       const std::vector<const GTrueInfoData*>& trueInfoData) {
    if (!ofile_true_info.is_open()) {
        log->error(
            gstreamer::ERR_CANTOPENOUTPUT, "%1Error: can't access %2", SFUNCTION_NAME, filename_true_info());
    }
 
    // Emit the header row from the first non-empty detector collection so column names
    // reflect the actual variable schema.
    if (!is_first_event_with_truedata) {
        if (trueInfoData.size() > 0) {
            ofile_true_info << "evn, timestamp, thread_id, detector, ";
            auto first_hit = trueInfoData[0];
 
            const auto& smap = first_hit->getStringVariablesMap();
            const auto& dmap = first_hit->getDoubleVariablesMap();
 
            size_t total = dmap.size();
            size_t i     = 0;
 
            log->debug(
                NORMAL, "%1Writing header for event %2 with %3 variables", SFUNCTION_NAME, event_number, total);
 
            for (const auto& [name, value] : getIdentityMap(first_hit->getIdentity())) { ofile_true_info << name << ", "; }
            for (const auto& [name, value] : smap) { ofile_true_info << name << ", "; }
 
            for (const auto& [name, value] : dmap) {
                ofile_true_info << name;
                if (++i < total) ofile_true_info << ", ";
            }
 
            ofile_true_info << "\n";
 
            is_first_event_with_truedata = true;
        }
    }
 
    // Write one row per true-information hit.
    if (is_first_event_with_truedata) {
        for (auto trueInfoHit : trueInfoData) {
            const auto& smap = trueInfoHit->getStringVariablesMap();
            const auto& dmap = trueInfoHit->getDoubleVariablesMap();
 
            size_t total = dmap.size();
            size_t i     = 0;
 
            ofile_true_info << event_number << ", " << timestamp << ", " << thread_id << ", " << detectorName << ", ";
 
            for (const auto& [name, value] : getIdentityMap(trueInfoHit->getIdentity())) { ofile_true_info << value << ", "; }
            for (const auto& [variableName, value] : smap) { ofile_true_info << value << ", "; }
            for (const auto& [variableName, value] : dmap) {
                ofile_true_info << value;
                if (++i < total) ofile_true_info << ", ";
            }
            ofile_true_info << "\n";
        }
    }
 
    return true;
}