hcaltb::HcalTBSlowDataUnpacker Class Reference

#include <HcalTBSlowDataUnpacker.h>

Public Member Functions
	HcalTBSlowDataUnpacker (void)
void	unpack (const FEDRawData &raw, HcalTBRunData &htbrd, HcalTBEventPosition &htbep)

Detailed Description

Definition at line 10 of file HcalTBSlowDataUnpacker.h.

Constructor & Destructor Documentation

hcaltb::HcalTBSlowDataUnpacker::HcalTBSlowDataUnpacker ( void  )

inline

Definition at line 12 of file HcalTBSlowDataUnpacker.h.

{ }

Member Function Documentation

void hcaltb::HcalTBSlowDataUnpacker::unpack	(	const FEDRawData &	raw,
		HcalTBRunData &	htbrd,
		HcalTBEventPosition &	htbep
	)

Definition at line 28 of file HcalTBSlowDataUnpacker.cc.

References gather_cfg::cout, FEDRawData::data(), edm::hlt::Exception, i, xdaqSlowDataFormat::key_length, xdaqSlowDataFormat::n_doubles, xdaqSlowDataFormat::n_strings, HcalTBEventPosition::setHBHEtableCoords(), HcalTBEventPosition::setHFtableCoords(), HcalTBRunData::setRunData(), FEDRawData::size(), xdaqSlowDataFormat::start_of_data, and xdaqSlowDataFormat::string_value_length.

Referenced by HcalTBObjectUnpacker::produce().

                                                     {

  if (raw.size()<3*8) {
    throw cms::Exception("Missing Data") << "No data in the slow data block";
  }

    const struct xdaqSlowDataFormat *sd =
      (const struct xdaqSlowDataFormat *)(raw.data());

    map<string,double> sd_dblmap;
    map<string,string> sd_strmap;

#ifdef DEBUG
    cout << "#doubles = "   << sd->n_doubles << endl;;
    cout << "#strings = "   << sd->n_strings << endl;
    cout << "key_length = " << sd->key_length << endl;
    cout << "string_value_length = " << sd->string_value_length << endl;
#endif

    // List of doubles:

    const char   *keyptr = &sd->start_of_data;
    const double *valptr =
      (const double *)(&sd->start_of_data + sd->n_doubles*sd->key_length);

    for (int i=0; i<sd->n_doubles; i++) {
#ifdef DEBUG
      cout << keyptr << " = " << *valptr << endl;
#endif
      sd_dblmap[keyptr] = *valptr;
      keyptr += sd->key_length;
      valptr++;
    }

    // List of strings:

    keyptr = (const char *)valptr;
    const char *strptr = (keyptr + sd->n_strings*sd->key_length);

    for (int i=0; i<sd->n_strings; i++) {
#ifdef DEBUG
      cout << keyptr << " = " << strptr << endl;
#endif
      sd_strmap[keyptr] = strptr;
      keyptr += sd->key_length;
      strptr += sd->string_value_length;
    }

    // Now fill the input objects:
    htbrd.setRunData(sd_strmap["RunType"].c_str(),
             sd_strmap["Beam.Mode"].c_str(),
             sd_dblmap["Beam.Energy"]);

    htbep.setHFtableCoords(sd_dblmap["HFTable.X"],
               sd_dblmap["HFTable.Y"],
               sd_dblmap["HFTable.V"]);

    htbep.setHBHEtableCoords(sd_dblmap["Table.Eta"],
                 sd_dblmap["Table.Phi"]);
  }