// Called when the metadata object is about to be written
// FIll the fields on the metadata
virtual void compute_info(const MessageBuffer& buffer)
{
ProcessingStep& p = *_processing_step;
p.set_name("root2a4");
p.set_walltime((chrono::steady_clock::now() - _start_wallclock).count());
p.set_cputime((chrono::thread_clock::now() - _start_cpuclock).count());
p.set_input_events(_input_events);
p.set_input_bytes_read(_input_bytes_read);
_metadata.set_event_count(buffer.size());
if (buffer.size() >= 1) {
if (_field_run) {
auto run_number = _refl->GetUInt32(*buffer[0], _field_run);
_metadata.add_run(run_number);
auto* full_period = get_period(run_number);
std::string period = full_period;
if (period != "UNK") {
period = period[0];
}
_metadata.add_period(period);
_metadata.add_subperiod(full_period);
}
if (_field_mc_channel && _refl->HasField(*buffer[0], _field_mc_channel))
_metadata.add_mc_channel(_refl->GetUInt32(*buffer[0], _field_mc_channel));
}
}
void write_metadata(shared<a4::io::OutputStream> stream,
const MessageBuffer& buffer)
{
compute_info(buffer);
// Only write metadata if there is at least one message to be written
// (A4 doesn't deal well with the case of metadata for 0 events yet)
if (buffer.size() >= 1) {
stream->metadata(_metadata);
}
reset_counters();
}
