Provenance.hxx

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//-----------------------------------------------------------------------------
// CVS: $Revision: 2099 $, $Date: 2006-04-17 17:48:43 +0100 (Mon, 17 Apr 2006) $, $Author: rsc $
//-----------------------------------------------------------------------------
#ifndef PROVENANCE_H
#define PROVENANCE_H

#include "Constants.h"
#include "DataBuilder.hxx"
#include "Logger.h"
#include "TableInfo.h"
//-----------------------------------------------------------------------------
template<typename DataType>
class Provenance : public DataBuilder<DataType>
{
public:
  Provenance(const TableInfo& aInfo)
    : mInfo(aInfo)
    { DataBuilder<DataType>::builderName = "Provenance"; }

  virtual ~Provenance() {}

  TableData<DataType>* build(FitsFile& fpix, FitsFile& fcat, int fileNo)
  {
    // Number of columns in the data table is the number of attributes
    // in the schema
    int numCols = mInfo.getNumAttributes();

    // Number of rows is the number of PROV#### keywords in the schema
    int numRows = 0;

    // Look at cards in the first extension HDU
    fpix.movabsHdu(2);

    StringMap prov;

    // Check keynames for all cards in this HDU
    int numCards = fpix.getNumCards();
    for (int n = 0; n < numCards; ++n) {

      string keyname = fpix.readKeyname(n);

      // If keyname starts with "PROV", then this is a row in the
      // table and its number is not 0000
      if (keyname.find("PROV", 0) == 0) {

        if (keyname != "PROV0000"){
            string value;
            fpix.readKey(keyname, value);
            prov[numRows] = value;
            ++numRows;
        }
      }
    }

    // Create correctly dimensioned table
    TableData<DataType> *data = new TableData<DataType>(numCols, numRows);

    if (numRows >= 0)
    {
      // Put in the values for the PROV keywords in the column whos
      // attribute name is multiframeID
      int colNo = mInfo.getAttNo(ExpectNames::multiframeID);
      if (colNo != TableInfo::ColNotFound)
      {
        for (int rowNo = 0; rowNo < numRows; ++rowNo)
        {
          data->assign(colNo, rowNo, prov[rowNo]);
        }
      }
      else
      {
        Logger log;
        log.addMessage("Warning!: Cannot find attribute " +
                       ExpectNames::multiframeID + " in schema table " +
                       mInfo.getTableName());
      }
    }

    return data;
  }

private:
  TableInfo mInfo;
};
//-----------------------------------------------------------------------------
#endif
//-----------------------------------------------------------------------------
// Change log:
//
// 27-May-2004,  IAB: Original version.