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//# tVACEngine.cc: Test program for class VACEngine
//# Copyright (C) 1994,1995,1996,1999,2000,2001,2002
//# Associated Universities, Inc. Washington DC, USA.
//#
//# 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 2 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, 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 "dVACEngine.cc"
#include <casacore/tables/Tables/TableDesc.h>
#include <casacore/tables/Tables/SetupNewTab.h>
#include <casacore/tables/Tables/Table.h>
#include <casacore/tables/Tables/ArrColDesc.h>
#include <casacore/tables/Tables/ArrayColumn.h>
#include <casacore/tables/Tables/RefRows.h>
#include <casacore/casa/Arrays/IPosition.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/tables/Tables/TableError.h>
#include <casacore/casa/iostream.h>
#include <casacore/casa/namespace.h>
// <summary> Test program for class VACEngine </summary>
// This program tests the virtual column engine VACEngine.
// It is using the example class VACExampleVACEngine for that purpose
// (note that BaseColumnDesc adds VACEngine to the default datamanager type).
// The results are written to stdout. The script executing this program,
// compares the results with the reference output file.
void a();
void b();
int main ()
{
try {
a();
b();
} catch (const AipsError& x) {
cout << "Caught an exception: " << x.getMesg() << endl;
return 1;
}
return 0; // exit with success status
}
// First build a description.
void a() {
// First register the virtual column engine.
VACExampleVACEngine::registerClass();
// Add ArrayColumnDesc<VACExample> to column type map.
ArrayColumnDesc<VACExample>("x").registerClass();
// Build the table description.
TableDesc td("", "1", TableDesc::Scratch);
td.comment() = "A test of class TableDesc";
td.addColumn (ArrayColumnDesc<Int> ("x"));
td.addColumn (ArrayColumnDesc<float> ("y"));
td.addColumn (ArrayColumnDesc<String> ("z"));
td.addColumn (ArrayColumnDesc<VACExample> ("colA"));
// Now create a new table from the description.
SetupNewTable newtab("tVACEngine_tmp.data", td, Table::New);
// Create the virtual column engine with the target columns x and y.
VACExampleVACEngine engine ("colA", "x", "y", "z");
newtab.bindColumn ("colA", engine);
Table tab(newtab, 10);
// Fill the table via the virtual columns.
ArrayColumn<VACExample> colA (tab,"colA");
for (int i=0; i<10; i++) {
Vector<VACExample> vac(i);
for (int j=0; j<i; ++j) {
vac[j] = VACExample(i+j, i+j+1, String::toString(i+j+2));
}
colA.put (i, vac);
}
//# Do an erroneous thing (binding an incorrect column).
SetupNewTable newtab2("tVACEngine_tmp.dat2", td, Table::Scratch);
newtab2.bindColumn ("x", engine);
try {
Table tab2(newtab2, 10); // bound to incorrect column
} catch (const AipsError& x) {
cout << "Expected exception: " << x.getMesg() << endl;
}
}
void checkArrs (int st, int len, const Array<Int>& x, const Array<float>& y,
const Array<String>& z)
{
uInt sz = len;
AlwaysAssertExit(x.size()==sz && y.size()==sz && z.size()==sz);
AlwaysAssertExit(x.ndim()==1 && y.ndim()==1 && z.ndim()==1);
for (int j=0; j<len; ++j) {
String expz = String::toString(st+j+2);
AlwaysAssertExit (x.data()[j] == st+j);
AlwaysAssertExit (y.data()[j] == st+j+1);
AlwaysAssertExit (z.data()[j] == expz);
}
}
void checkVac (int st, int len, const Array<VACExample>& vac)
{
AlwaysAssertExit(vac.size()==uInt(len));
AlwaysAssertExit(vac.ndim()==1);
for (int j=0; j<len; ++j) {
String expz = String::toString(st+j+2);
AlwaysAssertExit (vac.data()[j].x() == st+j);
AlwaysAssertExit (vac.data()[j].y() == st+j+1);
AlwaysAssertExit (vac.data()[j].z() == expz);
}
}
void b()
{
cout << 'x'<<endl;
// Read back the table.
Table tab("tVACEngine_tmp.data");
ArrayColumn<Int> colx (tab, "x");
ArrayColumn<float> coly (tab, "y");
ArrayColumn<String> colz (tab, "z");
ArrayColumn<VACExample> colA(tab, "colA");
for (int i=0; i<10; i++) {
cout << "get row " << i << endl;
Array<Int> x = colx.get(i);
Array<float> y = coly.get(i);
Array<String> z = colz.get(i);
Array<VACExample> vac = colA.get(i);
checkArrs (i, i, x, y, z);
checkVac (i, i, vac);
}
// Read a slice from a range of rows.
cout << "get row range" << endl;
Array<VACExample> vecA = colA.getColumnRange
(Slicer(IPosition(1,3), IPosition(1,7)), // rows
Slicer(IPosition(1,1), IPosition(1,2))); // array slice
AlwaysAssertExit (vecA.ndim() == 2 && vecA.size() == 14);
for (int i=0; i<7; i++) {
checkVac (i+4, 2, vecA[i]);
}
}
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