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//# dVACEngine.cc: Example virtual column engine to handle data type A
//# Copyright (C) 1994,1995,1996,1997,2001
//# 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
//# Includes
#include "dVACEngine.h"
#include <casacore/tables/Tables/Table.h>
#include <casacore/tables/Tables/TableRecord.h>
#include <casacore/casa/Exceptions/Error.h>
#include <casacore/casa/namespace.h>
VACExampleVACEngine::VACExampleVACEngine()
{}
VACExampleVACEngine::VACExampleVACEngine (const String& sourceColumnName,
const String& xTargetColumnName,
const String& yTargetColumnName,
const String& zTargetColumnName)
: VACEngine<VACExample> (sourceColumnName),
xTargetName_p (xTargetColumnName),
yTargetName_p (yTargetColumnName),
zTargetName_p (zTargetColumnName)
{}
VACExampleVACEngine::VACExampleVACEngine (const VACExampleVACEngine& that)
: VACEngine<VACExample> (that),
xTargetName_p (that.xTargetName_p),
yTargetName_p (that.yTargetName_p),
zTargetName_p (that.zTargetName_p)
{}
VACExampleVACEngine::~VACExampleVACEngine()
{}
DataManager* VACExampleVACEngine::clone() const
{
DataManager* dmPtr = new VACExampleVACEngine (sourceColumnName(),
xTargetName_p, yTargetName_p,
zTargetName_p);
if (dmPtr == 0) {
throw (AllocError ("VACExampleVACEngine::clone()", 1));
}
return dmPtr;
}
// Store the target column names in the keywords of this column.
void VACExampleVACEngine::create64 (rownr_t)
{
TableColumn src (table(), sourceColumnName());
src.rwKeywordSet().define ("_xTargetName", xTargetName_p);
src.rwKeywordSet().define ("_yTargetName", yTargetName_p);
src.rwKeywordSet().define ("_zTargetName", zTargetName_p);
}
// Prepare the engine by allocating column objects
// for the used columns.
// Get their names from the keywords of this column.
void VACExampleVACEngine::prepare()
{
TableColumn src (table(), sourceColumnName());
xTargetName_p = src.keywordSet().asString ("_xTargetName");
yTargetName_p = src.keywordSet().asString ("_yTargetName");
zTargetName_p = src.keywordSet().asString ("_zTargetName");
colx.attach (table(), xTargetName_p);
coly.attach (table(), yTargetName_p);
colz.attach (table(), zTargetName_p);
}
void VACExampleVACEngine::setShape (rownr_t rownr, const IPosition& shape)
{
colx.setShape (rownr, shape);
coly.setShape (rownr, shape);
colz.setShape (rownr, shape);
}
Bool VACExampleVACEngine::isShapeDefined (rownr_t rownr)
{
return colx.isDefined (rownr);
}
IPosition VACExampleVACEngine::shape (rownr_t rownr)
{
return colx.shape (rownr);
}
void VACExampleVACEngine::getArray (rownr_t rownr, Array<VACExample>& value)
{
Array<Int> x;
Array<float> y;
Array<String> z;
colx.get (rownr, x);
coly.get (rownr, y);
colz.get (rownr, z);
Array<VACExample>::iterator iter = value.begin();
for (size_t i=0; i<x.size(); ++i) {
iter->x() = x.data()[i];
iter->y() = y.data()[i];
iter->z() = z.data()[i];
++iter;
}
}
void VACExampleVACEngine::putArray (rownr_t rownr, const Array<VACExample>& value)
{
Array<Int> x(value.shape());
Array<float> y(value.shape());
Array<String> z(value.shape());
Array<VACExample>::const_iterator iter = value.begin();
for (size_t i=0; i<x.size(); ++i) {
x.data()[i] = iter->x();
y.data()[i] = iter->y();
z.data()[i] = iter->z();
++iter;
}
colx.put (rownr, x);
coly.put (rownr, y);
colz.put (rownr, z);
}
DataManager* VACExampleVACEngine::makeObject (const String&, const Record&)
{
DataManager* dmPtr = new VACExampleVACEngine();
if (dmPtr == 0) {
throw (AllocError ("VACExampleVACEngine::makeObject()", 1));
}
return dmPtr;
}
void VACExampleVACEngine::registerClass()
{
DataManager::registerCtor ("VACExampleVACEngine", makeObject);
}
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