MS1ToMS2Converter.h

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// # MS1ToMS2Converter.h: Definition for ms1 to ms2 converter
// # Copyright (C) 1994,1995,1996,1997,1998,1999,2000
// # Associated Universities, Inc. Washington DC, USA.
// #
// # This library is free software; you can redistribute it and/or modify it
// # under the terms of the GNU Library General Public License as published by
// # the Free Software Foundation; either version 2 of the License, or (at your
// # option) any later version.
// #
// # This library is distributed in the hope that it will be useful, but WITHOUT
// # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
// # License for more details.
// #
// # You should have received a copy of the GNU Library General Public License
// # along with this library; if not, write to the Free Software Foundation,
// # Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
// #
// # Correspondence concerning AIPS++ should be addressed as follows:
// #        Internet email: casa-feedback@nrao.edu.
// #        Postal address: AIPS++ Project Office
// #                        National Radio Astronomy Observatory
// #                        520 Edgemont Road
// #                        Charlottesville, VA 22903-2475 USA
 
#ifndef MS_MS1TOMS2CONVERTER_H
#define MS_MS1TOMS2CONVERTER_H
 
// # Includes
#include <casacore/casa/aips.h>
#include <casacore/tables/Tables/Table.h>
#include <casacore/casa/Logging/LogIO.h>
 
namespace casacore {  // # NAMESPACE CASACORE - BEGIN
 
// # Forward declarations
class String;
 
// <summary>
// Class to convert a MeasurementSet v1 to v2.
// </summary>
 
// <use visibility=export>
 
// <reviewed reviewer="" date="yyyy/mm/dd" tests="" demos="">
// </reviewed>
 
// <synopsis>
// This class converts a version 1 MeasurementSet to version 2.
// The keyword MS_VERSION tells the version. If not present it is 1.
// If it is found that the MS is already a version 2 one, nothing is done.
// <p>
// It is possible to do the conversion in place. If not, first a copy
// is made which is thereafter changed in place.
// <br>
// The conversion process does the following steps:
// <ul>
//  <li> Create the newly required columns and keywords
//       and fill them with new or existing data.
//  <li> Convert the old way of defining measure info to the new
//       TableMeasures way.
//  <li> Rename obsolete columns by prefixing their names with _OBSOLETE_.
// </ul>
//
// The constructor only keeps the names of the input and output MS.
// The actual conversion is done by the <src>convert</src> function.
// </synopsis>
 
class MS1ToMS2Converter {
 public:
  // Create the converter for the given output (ms2) and input (ms1) name.
  // The input name has to be an MS version 1. If not, nothing will be done.
  // <br>If <src>inPlace==True</src>, the ms2 name is ignored. In that
  // case the ms is changed in place.
  MS1ToMS2Converter(const String& ms2, const String& ms1, Bool inPlace);
 
  ~MS1ToMS2Converter();
 
  // Forbid copy constructor and assignment.
  // <group>
  MS1ToMS2Converter(const MS1ToMS2Converter&) = delete;
  MS1ToMS2Converter& operator=(const MS1ToMS2Converter&) = delete;
  // </group>
 
  // Do the actual conversion.
  Bool convert();
 
 private:
  // If possible remove a column from the table.
  // Otherwise rename it by prefixing it with _OBSOLETE_.
  void removeColumn(Table& t, const String& col);
 
  String ms1_p;
  String ms2_p;
  Bool inPlace_p;
 
  // Logger
  LogIO os_p;
};
 
}  // namespace casacore
 
#endif