GVOTable.cpp
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/***************************************************************************
* GVOTable.cpp - VO table class *
* ----------------------------------------------------------------------- *
* copyright (C) 2015-2016 by Thierry Louge *
* ----------------------------------------------------------------------- *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
***************************************************************************/
/**
* @file GVOTable.cpp
* @brief VO table class implementation
* @author Thierry Louge
*/
/* __ Includes ___________________________________________________________ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "GVOTable.hpp"
#include "GXmlElement.hpp"
#include "GFitsCfitsio.hpp"
#include "GFitsTable.hpp"
#include "GFitsTableCol.hpp"
/* __ Method name definitions ____________________________________________ */
/* __ Macros _____________________________________________________________ */
/* __ Coding definitions _________________________________________________ */
/* __ Debug definitions __________________________________________________ */
/*==========================================================================
= =
= Constructors/destructors =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Void constructor
***************************************************************************/
GVOTable::GVOTable(void)
{
// Initialise members
init_members();
// Return
return;
}
/***********************************************************************//**
* @brief FITS table constructor
*
* @param[in] table FITS table
***************************************************************************/
GVOTable::GVOTable(const GFitsTable& table)
{
// Initialise members
init_members();
// Read VO table from FITS table
read(table);
// Return
return;
}
/***********************************************************************//**
* @brief Copy constructor
*
* @param[in] votable VO table
***************************************************************************/
GVOTable::GVOTable(const GVOTable& votable)
{
// Initialise members
init_members();
// Copy members
copy_members(votable);
// Return
return;
}
/***********************************************************************//**
* @brief Destructor
***************************************************************************/
GVOTable::~GVOTable(void)
{
// Free members
free_members();
// Return
return;
}
/*==========================================================================
= =
= Operators =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Assignment operator
*
* @param[in] votable VO table.
* @return VO table.
***************************************************************************/
GVOTable& GVOTable::operator=(const GVOTable& votable)
{
// Execute only if object is not identical
if (this != &votable) {
// Free members
free_members();
// Initialise members
init_members();
// Copy members
copy_members(votable);
} // endif: object was not identical
// Return
return *this;
}
/*==========================================================================
= =
= Public methods =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Clear object.
*
* Reset object to a clean initial state.
***************************************************************************/
void GVOTable::clear(void)
{
// Free members
free_members();
// Initialise members
init_members();
// Return
return;
}
/***********************************************************************//**
* @brief Clone object
***************************************************************************/
GVOTable* GVOTable::clone(void) const
{
// Clone client
return new GVOTable(*this);
}
/***********************************************************************//**
* @brief Read VO table from FITS table
***************************************************************************/
void GVOTable::read(const GFitsTable& table)
{
// Clear VO table
m_xml.clear();
// Set name and resource string
m_name = table.extname();
m_resource = table.classname();
// Set VOTABLE element string
std::string s1("VOTABLE version=\"1.3\" xmlns:xsi=\"http://www.w3.org/"
"2001/XMLSchema-instance\" xmlns=\"http://www.ivoa.net/"
"xml/VOTable/v1.3\" xmlns:stc=\"http://www.ivoa.net/xml/"
"STC/v1.30\"");
std::string s2("RESOURCE name=\""+m_resource+"\"");
std::string s3("TABLE name=\""+m_name+"\"");
// Create table element
GXmlElement* votable = m_xml.append(s1)->append(s2)->append(s3);
// Append description
votable->append("DESCRIPTION")->append(GXmlText(m_description));
// Append FIELD elements by extracting the information from the FITS
// columns
for (int i = 0; i < table.ncols(); ++i) {
votable->append(field_from_fits_column(*table[i]));
}
// Append data
votable->append(data_from_fits_table(table));
// Return
return;
}
/***********************************************************************//**
* @brief Print VO Table information
*
* @param[in] chatter Chattiness.
* @return String containing VO table information.
***************************************************************************/
std::string GVOTable::print(const GChatter& chatter) const
{
// Initialise result string
std::string result;
// Continue only if chatter is not silent
if (chatter != SILENT) {
// Append VO table
result.append("=== GVOTable ===");
result.append(m_xml.print(chatter, 0));
} // endif: chatter was not silent
// Return result
return result;
}
/*==========================================================================
= =
= Private methods =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Initialise class members
***************************************************************************/
void GVOTable::init_members(void)
{
// Initialise members
m_xml.clear();
m_name.clear();
m_resource.clear();
m_description.clear();
// Return
return;
}
/***********************************************************************//**
* @brief Copy class members
*
* @param[in] table VO table.
***************************************************************************/
void GVOTable::copy_members(const GVOTable& table)
{
// Copy members
m_xml = table.m_xml;
m_name = table.m_name;
m_resource = table.m_resource;
m_description = table.m_description;
// Return
return;
}
/***********************************************************************//**
* @brief Delete class members
***************************************************************************/
void GVOTable::free_members(void)
{
// Return
return;
}
/***********************************************************************//**
* @brief Return FIELD element with column description
*
* @param[in] column FITS column
* @return XML FIELD element with column description
***************************************************************************/
GXmlElement GVOTable::field_from_fits_column(const GFitsTableCol& column) const
{
// Create FIELD element
GXmlElement field("FIELD");
// Set datatype
std::string datatype;
switch (column.type()) {
case __TLOGICAL:
datatype = "boolean";
break;
case __TBIT:
datatype = "bit";
break;
case __TBYTE:
case __TSBYTE:
datatype = "unsignedByte";
break;
case __TSHORT:
case __TUSHORT:
datatype = "short";
break;
case __TINT:
case __TUINT:
datatype = "int";
break;
case __TLONG:
case __TULONG:
case __TLONGLONG:
datatype = "long";
break;
case __TSTRING:
datatype = "char";
break;
case __TFLOAT:
datatype = "float";
break;
case __TDOUBLE:
datatype = "double";
break;
case __TCOMPLEX:
datatype = "floatComplex";
break;
case __TDBLCOMPLEX:
datatype = "doubleComplex";
break;
default:
datatype = "unknown";
break;
}
// Set FIELD attributes
field.attribute("name", column.name());
field.attribute("ID", "col"+gammalib::str(column.colnum()+1));
field.attribute("datatype", datatype);
field.attribute("unit", column.unit());
// Return XML FIELD element
return field;
}
/***********************************************************************//**
* @brief Return DATA element with FITS table data
*
* @param[in] table FITS table
* @return XML DATA element with FITS data
***************************************************************************/
GXmlElement GVOTable::data_from_fits_table(const GFitsTable& table) const
{
// Create DATA element and append TABLEDATA element
GXmlElement data("DATA");
GXmlElement* tabledata = data.append("TABLEDATA");
// Loop over all rows
for (int row = 0; row < table.nrows(); ++row) {
// Create TR element
GXmlElement tr("TR");
// Append all column data
for (int col = 0; col < table.ncols(); ++col) {
// Create TD element
GXmlElement td("TD");
// Set column data as text of TD element
td.append(GXmlText(table[col]->string(row)));
// Append TD element to TR element
tr.append(td);
} // endfor: looped over columns
// Append TR element to TABLEDATA
tabledata->append(tr);
} // endfor: looped over rows
// Return XML DATA element
return data;
}