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//# SSMDirColumn.cc: a Direct Array Column of the Standard Storage Manager
//# Copyright (C) 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
#include <casacore/tables/DataMan/SSMDirColumn.h>
#include <casacore/tables/DataMan/SSMStringHandler.h>
#include <casacore/casa/Arrays/Array.h>
#include <casacore/casa/Utilities/ValType.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
SSMDirColumn::SSMDirColumn (SSMBase* aParent, int aDataType, uInt aColNr)
: SSMColumn (aParent,aDataType,aColNr)
{
}
SSMDirColumn::~SSMDirColumn()
{
}
void SSMDirColumn::setMaxLength (uInt)
{}
void SSMDirColumn::deleteRow(rownr_t aRowNr)
{
char* aValue;
rownr_t aSRow;
rownr_t anERow;
aValue = itsSSMPtr->find (aRowNr, itsColNr, aSRow, anERow, columnName());
if (aRowNr < anERow) {
// remove from bucket
// first check if type is a bool
if (dataType() == TpBool) {
uInt64 anOffr = (aRowNr-aSRow+1) * itsNrCopy;
uInt64 anOfto = (aRowNr-aSRow) * itsNrCopy;
uInt64 nr = (anERow-aRowNr) * itsNrCopy;
Block<Bool> tmp(nr);
Conversion::bitToBool (tmp.storage(), aValue + anOffr/8,
anOffr%8, nr);
Conversion::boolToBit (aValue + anOfto/8, tmp.storage(),
anOfto%8, nr);
} else {
// remove from bucket
shiftRows(aValue,aRowNr,aSRow,anERow);
}
itsSSMPtr->setBucketDirty();
}
}
void SSMDirColumn::getArrayV (rownr_t aRowNr, ArrayBase& aDataPtr)
{
Bool deleteIt;
if (dtype() == TpBool) {
// Bools need to be converted from bits.
rownr_t aStartRow;
rownr_t anEndRow;
char* aValue;
Array<Bool>& arr = static_cast<Array<Bool>&>(aDataPtr);
Bool* data = arr.getStorage (deleteIt);
aValue = itsSSMPtr->find (aRowNr, itsColNr, aStartRow, anEndRow,
columnName());
uInt64 anOff = (aRowNr-aStartRow) * itsNrCopy;
Conversion::bitToBool(data, aValue+ anOff/8, anOff%8, itsNrCopy);
arr.putStorage (data, deleteIt);
} else if (dtype() == TpString) {
// Strings are stored indirectly.
Int buf[3];
getRowValue(buf, aRowNr);
Array<String>& arr = static_cast<Array<String>&>(aDataPtr);
itsSSMPtr->getStringHandler()->get(arr, buf[0], buf[1], buf[2], False);
} else {
// Other types can be handled directly.
void* data = aDataPtr.getVStorage (deleteIt);
getValue (aRowNr, data);
aDataPtr.putVStorage (data, deleteIt);
}
}
void SSMDirColumn::getValue(rownr_t aRowNr, void* data)
{
rownr_t aStartRow;
rownr_t anEndRow;
char* aValue;
aValue = itsSSMPtr->find (aRowNr, itsColNr, aStartRow, anEndRow,
columnName());
itsReadFunc (data, aValue+(aRowNr-aStartRow)*itsExternalSizeBytes,
itsNrCopy);
}
void SSMDirColumn::putArrayV (rownr_t aRowNr, const ArrayBase& aDataPtr)
{
Bool deleteIt;
if (dtype() == TpBool) {
// Bools need to be converted from bits.
rownr_t aStartRow;
rownr_t anEndRow;
char* aValue;
aValue = itsSSMPtr->find (aRowNr, itsColNr, aStartRow, anEndRow,
columnName());
uInt64 anOff = (aRowNr-aStartRow) * itsNrCopy;
const Array<Bool>& arr = static_cast<const Array<Bool>&>(aDataPtr);
const Bool* data = arr.getStorage (deleteIt);
Conversion::boolToBit (aValue + anOff/8, data, anOff%8, itsNrCopy);
arr.freeStorage (data, deleteIt);
} else if (dtype() == TpString) {
// Strings are stored indirectly.
Int buf[3];
getRowValue(buf, aRowNr);
const Array<String>& arr = static_cast<const Array<String>&>(aDataPtr);
itsSSMPtr->getStringHandler()->put(buf[0], buf[1], buf[2], arr, False);
putValue(aRowNr, buf);
} else {
// Other types can be handled directly.
const void* data = aDataPtr.getVStorage (deleteIt);
putValue (aRowNr, data);
aDataPtr.freeVStorage (data, deleteIt);
}
itsSSMPtr->setBucketDirty();
}
} //# NAMESPACE CASACORE - END
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