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//# ScaRecordColData.cc: Access to a table column containing scalar records
//# Copyright (C) 1998,2000,2001
//# 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: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#include <casacore/tables/Tables/ScaRecordColData.h>
#include <casacore/tables/Tables/ScaRecordColDesc.h>
#include <casacore/tables/Tables/ColumnSet.h>
#include <casacore/tables/Tables/ColumnDesc.h>
#include <casacore/tables/Tables/RefRows.h>
#include <casacore/tables/Tables/Table.h>
#include <casacore/tables/Tables/TableRecord.h>
#include <casacore/tables/Tables/TableAttr.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/tables/DataMan/DataManager.h>
#include <casacore/tables/Tables/TableError.h>
#include <casacore/casa/IO/AipsIO.h>
#include <casacore/casa/IO/MemoryIO.h>
#include <casacore/casa/Utilities/Assert.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
ScalarRecordColumnData::ScalarRecordColumnData
(const ScalarRecordColumnDesc* cd,
ColumnSet* csp)
: PlainColumn (cd, csp),
scaDescPtr_p (cd)
{}
ScalarRecordColumnData::~ScalarRecordColumnData()
{}
void ScalarRecordColumnData::createDataManagerColumn()
{
// The records are stored as an array.
// Because their lengths can vary, it has to be indirect.
dataColPtr_p = dataManPtr_p->createIndArrColumn
(colDescPtr_p->name(), TpUChar, "");
}
void ScalarRecordColumnData::initialize (rownr_t, rownr_t)
{}
Bool ScalarRecordColumnData::isDefined (rownr_t) const
{
return True;
}
void ScalarRecordColumnData::get (rownr_t rownr, void* val) const
{
checkReadLock (True);
getRecord (rownr, *(TableRecord*)val);
autoReleaseLock();
}
void ScalarRecordColumnData::getScalarColumn (ArrayBase& val) const
{
Vector<TableRecord>& vec = static_cast<Vector<TableRecord>&>(val);
rownr_t nr = nrow();
if (vec.nelements() != nr) {
throw (TableArrayConformanceError
("ScalarRecordColumnData::getScalarColumn"));
}
checkReadLock (True);
for (rownr_t i=0; i<nr; i++) {
getRecord (i, vec(i));
}
autoReleaseLock();
}
void ScalarRecordColumnData::getScalarColumnCells (const RefRows& rownrs,
ArrayBase& val) const
{
Vector<TableRecord>& vec = static_cast<Vector<TableRecord>&>(val);
if (vec.nelements() != rownrs.nrow()) {
throw (TableArrayConformanceError
("ScalarRecordColumnData::getColumnCells"));
}
checkReadLock (True);
RefRowsSliceIter iter(rownrs);
rownr_t i=0;
while (! iter.pastEnd()) {
rownr_t rownr = iter.sliceStart();
rownr_t end = iter.sliceEnd();
rownr_t incr = iter.sliceIncr();
while (rownr <= end) {
getRecord (rownr, vec(i++));
rownr += incr;
}
iter++;
}
autoReleaseLock();
}
void ScalarRecordColumnData::put (rownr_t rownr, const void* val)
{
checkWriteLock (True);
putRecord (rownr, *(const TableRecord*)val);
autoReleaseLock();
}
void ScalarRecordColumnData::putScalarColumn (const ArrayBase& val)
{
const Vector<TableRecord>& vec = static_cast<const Vector<TableRecord>&>(val);
rownr_t nr = nrow();
if (vec.nelements() != nr) {
throw (TableArrayConformanceError
("ScalarRecordColumnData::putScalarColumn"));
}
checkWriteLock (True);
for (rownr_t i=0; i<nr; i++) {
putRecord (i, vec(i));
}
autoReleaseLock();
}
void ScalarRecordColumnData::putScalarColumnCells (const RefRows& rownrs,
const ArrayBase& val)
{
const Vector<TableRecord>& vec = static_cast<const Vector<TableRecord>&>(val);
if (vec.nelements() != rownrs.nrow()) {
throw (TableArrayConformanceError
("ScalarRecordColumnData::putColumnCells"));
}
checkWriteLock (True);
RefRowsSliceIter iter(rownrs);
rownr_t i=0;
while (! iter.pastEnd()) {
rownr_t rownr = iter.sliceStart();
rownr_t end = iter.sliceEnd();
rownr_t incr = iter.sliceIncr();
while (rownr <= end) {
putRecord (rownr, vec(i++));
rownr += incr;
}
iter++;
}
autoReleaseLock();
}
void ScalarRecordColumnData::getRecord (rownr_t rownr, TableRecord& rec) const
{
if (! dataColPtr_p->isShapeDefined (rownr)) {
rec = TableRecord();
} else {
IPosition shape = dataColPtr_p->shape (rownr);
AlwaysAssert (shape.nelements() == 1, AipsError);
Array<uChar> data(shape);
dataColPtr_p->getArrayV (rownr, data);
Bool deleteIt;
const uChar* buf = data.getStorage (deleteIt);
MemoryIO memio (buf, shape(0));
AipsIO aio(&memio);
rec.getRecord (aio, TableAttr(dataManager()->table()));
data.freeStorage (buf, deleteIt);
}
}
void ScalarRecordColumnData::putRecord (rownr_t rownr, const TableRecord& rec)
{
MemoryIO memio;
AipsIO aio(&memio);
rec.putRecord (aio, TableAttr(dataManager()->table().tableName()));
IPosition shape (1, Int(memio.length()));
Vector<uChar> data(shape, (uChar*)(memio.getBuffer()), SHARE);
dataColPtr_p->setShape (rownr, shape);
dataColPtr_p->putArrayV (rownr, data);
}
void ScalarRecordColumnData::makeSortKey (Sort&,
CountedPtr<BaseCompare>&,
Int,
CountedPtr<ArrayBase>&)
{
throw (TableError ("Sorting on a column containing records "
"is not possible"));
}
void ScalarRecordColumnData::makeRefSortKey (Sort&,
CountedPtr<BaseCompare>&,
Int,
const Vector<rownr_t>&,
CountedPtr<ArrayBase>&)
{
throw (TableError ("Sorting on a column containing records "
"is not possible"));
}
void ScalarRecordColumnData::allocIterBuf (void*&, void*&,
CountedPtr<BaseCompare>&)
{
throw (TableError ("Iterating on a column containing records "
"is not possible"));
}
void ScalarRecordColumnData::freeIterBuf (void*& lastVal, void*& curVal)
{
lastVal = 0;
curVal = 0;
}
//# It was felt that putstart takes too much space, so therefore
//# the version is put "manually".
void ScalarRecordColumnData::putFileDerived (AipsIO& ios)
{
ios << (uInt)1; // class version 1
ios << dataManPtr_p->sequenceNr();
}
void ScalarRecordColumnData::getFileDerived (AipsIO& ios,
const ColumnSet& colset)
{
uInt version;
ios >> version;
uInt seqnr;
ios >> seqnr;
dataManPtr_p = colset.getDataManager (seqnr);
createDataManagerColumn();
}
} //# NAMESPACE CASACORE - END
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