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//# TiledCellStMan.cc: Storage manager for tables using tiled hypercubes
//# Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2003
//# 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
#include <casacore/tables/DataMan/TiledCellStMan.h>
#include <casacore/tables/DataMan/TSMColumn.h>
#include <casacore/tables/DataMan/TSMCube.h>
#include <casacore/tables/DataMan/TSMFile.h>
#include <casacore/tables/Tables/Table.h>
#include <casacore/tables/Tables/TableDesc.h>
#include <casacore/tables/Tables/ColumnDesc.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/casa/Arrays/IPosition.h>
#include <casacore/casa/Utilities/DataType.h>
#include <casacore/casa/BasicSL/String.h>
#include <casacore/casa/Utilities/BinarySearch.h>
#include <casacore/casa/IO/AipsIO.h>
#include <casacore/casa/IO/ArrayIO.h>
#include <casacore/tables/DataMan/DataManError.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
TiledCellStMan::TiledCellStMan ()
: TiledStMan ()
{}
TiledCellStMan::TiledCellStMan (const String& hypercolumnName,
const IPosition& defaultTileShape,
uInt64 maximumCacheSize)
: TiledStMan (hypercolumnName, maximumCacheSize),
defaultTileShape_p (defaultTileShape)
{}
TiledCellStMan::TiledCellStMan (const String& hypercolumnName,
const Record& spec)
: TiledStMan (hypercolumnName, 0)
{
if (spec.isDefined ("DEFAULTTILESHAPE")) {
defaultTileShape_p = IPosition (spec.toArrayInt ("DEFAULTTILESHAPE"));
}
if (spec.isDefined ("MAXIMUMCACHESIZE")) {
setPersMaxCacheSize (spec.asInt64 ("MAXIMUMCACHESIZE"));
}
}
TiledCellStMan::~TiledCellStMan()
{}
DataManager* TiledCellStMan::clone() const
{
TiledCellStMan* smp = new TiledCellStMan (hypercolumnName_p,
defaultTileShape_p,
maximumCacheSize());
return smp;
}
DataManager* TiledCellStMan::makeObject (const String& group,
const Record& spec)
{
TiledCellStMan* smp = new TiledCellStMan (group, spec);
return smp;
}
String TiledCellStMan::dataManagerType() const
{ return "TiledCellStMan"; }
IPosition TiledCellStMan::defaultTileShape() const
{
return defaultTileShape_p;
}
Bool TiledCellStMan::canChangeShape() const
{
return True;
}
void TiledCellStMan::setShape (rownr_t, TSMCube* hypercube,
const IPosition& shape,
const IPosition& tileShape)
{
hypercube->setShape (shape, tileShape);
}
void TiledCellStMan::setupCheck (const TableDesc& tableDesc,
const Vector<String>& dataNames) const
{
// The data columns should only contain arrays matching the
// dimensionality of the hypercolumn.
for (uInt i=0; i<dataNames.nelements(); i++) {
const ColumnDesc& columnDesc = tableDesc.columnDesc (dataNames(i));
if (! columnDesc.isArray()) {
throw (TSMError ("TiledCellStMan cannot handle scalar column " +
dataNames(i)));
}
if (Int(nrdim_p) != columnDesc.ndim()) {
throw (TSMError ("Dimensionality of column " + dataNames(i) +
" should be equal to hypercolumn"
" definition when used in TiledCellStMan"));
}
}
// There shouldn't be ID columns.
if (idColSet_p.nelements() > 0) {
throw TSMError("ID columns cannot be used with TiledCellStMan");
}
}
void TiledCellStMan::create64 (rownr_t nrrow)
{
// Set up the various things.
setup(0);
// Create the one and single TSMFile object.
createFile (0);
// Add the rows for the given number of rows.
addRow64 (nrrow);
}
Bool TiledCellStMan::flush (AipsIO&, Bool fsync)
{
// Flush the caches.
// Exit if nothing has changed.
if (! flushCaches (fsync)) {
return False;
}
// Create the header file and write data in it.
// A zero pointer is returned when nothing has changed, thus nothing
// has to be written.
AipsIO* headerFile = headerFileCreate();
if (headerFile == 0) {
return False;
}
headerFile->putstart ("TiledCellStMan", 1);
*headerFile << defaultTileShape_p;
// Let the base class write its data.
headerFilePut (*headerFile, nrrow_p);
headerFile->putend();
headerFileClose (headerFile);
return True;
}
void TiledCellStMan::readHeader (rownr_t tabNrrow, Bool firstTime)
{
// Open the header file and read data from it.
AipsIO* headerFile = headerFileOpen();
headerFile->getstart ("TiledCellStMan");
*headerFile >> defaultTileShape_p;
// Let the base class read and initialize its data.
headerFileGet (*headerFile, tabNrrow, firstTime, 0);
headerFile->getend();
headerFileClose (headerFile);
}
void TiledCellStMan::addRow64 (rownr_t nrow)
{
// Resize block when needed.
uInt64 size = cubeSet_p.nelements();
if (size < nrrow_p + nrow) {
size += 32;
if (size < nrrow_p + nrow) {
size = nrrow_p + nrow;
}
cubeSet_p.resize (size);
for (uInt64 i=nrrow_p; i<cubeSet_p.nelements(); i++) {
cubeSet_p[i] = 0;
}
}
for (rownr_t i=nrrow_p; i<nrrow_p+nrow; i++) {
TSMCube* hypercube = makeTSMCube (fileSet_p[0], IPosition(),
IPosition(), Record());
cubeSet_p[i] = hypercube;
if (fixedCellShape_p.nelements() > 0) {
hypercube->setShape (fixedCellShape_p, defaultTileShape_p);
}
}
nrrow_p += nrow;
setDataChanged();
}
TSMCube* TiledCellStMan::getHypercube (rownr_t rownr)
{
// Check if the row number is correct.
if (rownr >= nrrow_p) {
throw (TSMError ("getHypercube: rownr is too high"));
}
return cubeSet_p[rownr];
}
TSMCube* TiledCellStMan::getHypercube (rownr_t rownr, IPosition& position)
{
// Check if the row number is correct.
if (rownr >= nrrow_p) {
throw (TSMError ("getHypercube: rownr is too high"));
}
TSMCube* hypercube = cubeSet_p[rownr];
position.resize (0);
position = hypercube->cubeShape();
return hypercube;
}
} //# NAMESPACE CASACORE - END
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