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//# SSMIndColumn.cc: Column of Standard storage manager for indirect arrays
//# Copyright (C) 2000,2001,2002
//# 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 <casacore/tables/DataMan/SSMIndColumn.h>
#include <casacore/tables/Tables/Table.h>
#include <casacore/casa/Utilities/DataType.h>
#include <casacore/casa/Arrays/Array.h>
#include <casacore/casa/Arrays/Slicer.h>
#include <casacore/casa/BasicSL/Complex.h>
#include <casacore/casa/BasicSL/String.h>
#include <casacore/casa/Utilities/Assert.h>
#include <casacore/casa/OS/CanonicalConversion.h>
#include <casacore/casa/OS/LECanonicalConversion.h>
#include <casacore/tables/DataMan/DataManError.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
SSMIndColumn::SSMIndColumn (SSMBase* aParent, int aDataType, uInt aColNr)
: SSMColumn (aParent, aDataType, aColNr),
isShapeFixed (False),
itsIosFile (0),
itsIndArray (0)
{
init();
}
SSMIndColumn::~SSMIndColumn()
{}
void SSMIndColumn::setMaxLength (uInt)
{}
void SSMIndColumn::doCreate (rownr_t aNrRows)
{
// Initialize and create new file.
itsIosFile = itsSSMPtr->openArrayFile (ByteIO::New);
addRow(aNrRows,0,False);
}
void SSMIndColumn::getFile (rownr_t)
{
// Initialize and open existing file.
itsIosFile = itsSSMPtr->openArrayFile (itsSSMPtr->fileOption());
}
void SSMIndColumn::addRow (rownr_t aNewNrRows, rownr_t anOldNrRows, Bool doInit)
{
// init the buckets to zero of needed
if (doInit) {
rownr_t aRowNr=0;
rownr_t aNrRows=aNewNrRows;
while (aNrRows > 0) {
rownr_t aStartRow;
rownr_t anEndRow;
char* aValPtr;
aValPtr = itsSSMPtr->find (aRowNr, itsColNr, aStartRow, anEndRow,
columnName());
aRowNr = anEndRow+1;
rownr_t aNr = anEndRow-aStartRow+1;
aNrRows -= aNr;
memset(aValPtr, 0, aNr * itsExternalSizeBytes);
itsSSMPtr->setBucketDirty();
}
}
// If the shape is fixed and if the first row is added, define
// an array to have an array for all rows.
// Later rows get the value of a previous row, so we don't have to
// do anything for them.
if (isShapeFixed) {
for (; anOldNrRows<aNewNrRows;anOldNrRows++) {
setShape(anOldNrRows,itsFixedShape);
}
}
}
void SSMIndColumn::setShapeColumn (const IPosition& aShape)
{
itsFixedShape = aShape;
isShapeFixed = True;
}
void SSMIndColumn::setShape (rownr_t aRowNr, const IPosition& aShape)
{
// Get the current entry. If none, make empty one.
StIndArray* aPtr = getArrayPtr (aRowNr);
if (aPtr == 0) {
itsIndArray = StIndArray(0);
} else {
// Note that getArrayPtr sets itsIndArray (which is equal to aPtr).
aPtr->getShape (*itsIosFile);
}
// put the new shape (if changed)
// when changed put the file offset
if (itsIndArray.setShape (*itsIosFile, dataType(), aShape)) {
Int64 anOffset = itsIndArray.fileOffset();
putValue (aRowNr, &anOffset);
}
}
StIndArray* SSMIndColumn::getArrayPtr (rownr_t aRowNr)
{
Int64 anOffset;
rownr_t aStartRow;
rownr_t anEndRow;
char* aValue;
aValue = itsSSMPtr->find (aRowNr, itsColNr, aStartRow, anEndRow,
columnName());
itsReadFunc (&anOffset, aValue+(aRowNr-aStartRow)*itsExternalSizeBytes,
itsNrCopy);
if (anOffset != 0) {
itsIndArray = StIndArray (anOffset);
return &itsIndArray;
}else{
return 0;
}
}
//# Get the shape for the array (if any) in the given row.
//# Read shape if not read yet.
StIndArray* SSMIndColumn::getShape (rownr_t aRowNr)
{
StIndArray* aPtr = getArrayPtr (aRowNr);
if (aPtr == 0) {
throw DataManInvOper ("SSMIndColumn::getShape: no array in row "+
String::toString(aRowNr) + " in column "
+ columnName()
+ " of table " + itsSSMPtr->table().tableName());
}
aPtr->getShape (*itsIosFile);
return aPtr;
}
Bool SSMIndColumn::isShapeDefined (rownr_t aRowNr)
{ return (getArrayPtr(aRowNr) == 0 ? False : True); }
uInt SSMIndColumn::ndim (rownr_t aRowNr)
{ return getShape(aRowNr)->shape().nelements(); }
IPosition SSMIndColumn::shape (rownr_t aRowNr)
{ return getShape(aRowNr)->shape(); }
Bool SSMIndColumn::canChangeShape() const
{ return (isShapeFixed ? False : True); }
void SSMIndColumn::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
shiftRows(aValue,aRowNr,aSRow,anERow);
itsSSMPtr->setBucketDirty();
}
}
void SSMIndColumn::getArrayV (rownr_t aRowNr, ArrayBase& arr)
{
getShape(aRowNr)->getArrayV (*itsIosFile, arr, dtype());
}
void SSMIndColumn::putArrayV (rownr_t aRowNr, const ArrayBase& arr)
{
getShape(aRowNr)->putArrayV (*itsIosFile, arr, dtype());
}
void SSMIndColumn::getSliceV (rownr_t aRowNr, const Slicer& ns,
ArrayBase& arr)
{
getShape(aRowNr)->getSliceV (*itsIosFile, ns, arr, dtype());
}
void SSMIndColumn::putSliceV (rownr_t aRowNr, const Slicer& ns,
const ArrayBase& arr)
{
getShape(aRowNr)->putSliceV (*itsIosFile, ns, arr, dtype());
}
void SSMIndColumn::init()
{
DebugAssert (itsNrElem==1, AipsError);
if (itsSSMPtr->asBigEndian()) {
itsReadFunc =
CanonicalConversion::getToLocal(static_cast<Int64*>(0));
itsWriteFunc =
CanonicalConversion::getFromLocal(static_cast<Int64*>(0));
itsExternalSizeBytes =
CanonicalConversion::canonicalSize(static_cast<Int64*>(0));
}else{
itsReadFunc =
LECanonicalConversion::getToLocal(static_cast<Int64*>(0));
itsWriteFunc =
LECanonicalConversion::getFromLocal(static_cast<Int64*>(0));
itsExternalSizeBytes =
LECanonicalConversion::canonicalSize(static_cast<Int64*>(0));
}
itsNrCopy = 1;
itsExternalSizeBits = 8*itsExternalSizeBytes;
}
} //# NAMESPACE CASACORE - END
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