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//# ExprAggrNodeArray.cc: TaQL node representing an aggregate function
//# Copyright (C) 2013
//# 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: TaQLNodeArray.h 21051 2011-04-20 11:46:29Z gervandiepen $
//# Includes
#include <casacore/tables/TaQL/ExprAggrNodeArray.h>
#include <casacore/tables/TaQL/ExprGroupAggrFunc.h>
#include <casacore/tables/TaQL/ExprGroupAggrFuncArray.h>
#include <casacore/tables/TaQL/TableExprIdAggr.h>
#include <casacore/tables/Tables/TableError.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
TableExprAggrNodeArray::TableExprAggrNodeArray
(TableExprFuncNode::FunctionType ftype,
NodeDataType dtype, ValueType vtype,
const TableExprNodeSet& source,
const vector<TENShPtr>& nodes,
const Block<Int>& dtypeOper,
const TaQLStyle& style)
: TableExprFuncNodeArray (ftype, dtype, vtype, source,
nodes, dtypeOper, style)
{
// Always treat an aggregate as a variable expression.
// Otherwise if might be treated as constant and evaluated immediately
// which cannot be done.
exprtype_p = Variable;
}
void TableExprAggrNodeArray::getAggrNodes (vector<TableExprNodeRep*>& aggr)
{
aggr.push_back (this);
uInt naggr = aggr.size();
for (uInt i=0; i<operands().size(); ++i) {
operands()[i]->getAggrNodes (aggr);
}
if (naggr != aggr.size()) {
throw TableInvExpr ("The argument of an aggregate function cannot use "
"an aggregate function");
}
}
CountedPtr<TableExprGroupFuncBase> TableExprAggrNodeArray::makeGroupAggrFunc()
{
// Create a new function object because each FuncSet needs its own one.
itsFunc = doMakeGroupAggrFunc();
return itsFunc;
}
Bool TableExprAggrNodeArray::isLazyAggregate() const
{
return itsFunc->isLazy();
}
CountedPtr<TableExprGroupFuncBase> TableExprAggrNodeArray::doMakeGroupAggrFunc()
{
if (funcType() == TableExprFuncNode::gexpridFUNC) {
return new TableExprGroupExprId(this);
} else if (funcType() == TableExprFuncNode::gaggrFUNC) {
return new TableExprGroupAggr(this);
} else if (funcType() == TableExprFuncNode::growidFUNC) {
return new TableExprGroupRowid(this);
} else if (funcType() == TableExprFuncNode::ghistFUNC) {
Int64 nbin = operands()[1]->getInt(0);
Double start = operands()[2]->getDouble(0);
Double end = operands()[3]->getDouble(0);
if (operands()[0]->valueType() == VTScalar) {
return new TableExprGroupHistScalar (this, nbin, start, end);
}
if (operands()[0]->dataType() == NTInt) {
return new TableExprGroupHistInt (this, nbin, start, end);
}
return new TableExprGroupHistDouble (this, nbin, start, end);
}
if (operands()[0]->valueType() == VTScalar) {
throw TableInvExpr ("Aggregate function " +
String::toString(funcType()) +
" is unknown for scalar data type " +
String::toString(operands()[0]->dataType()));
}
// The operand is an array.
switch (operands()[0]->dataType()) {
case NTBool:
switch (funcType()) {
case TableExprFuncNode::ganysFUNC:
return new TableExprGroupArrayAnys(this);
case TableExprFuncNode::gallsFUNC:
return new TableExprGroupArrayAlls(this);
case TableExprFuncNode::gntruesFUNC:
return new TableExprGroupArrayNTrues(this);
case TableExprFuncNode::gnfalsesFUNC:
return new TableExprGroupArrayNFalses(this);
default:
throw TableInvExpr ("Aggregate function " +
String::toString(funcType()) +
" cannot be used with a bool argument");
}
case NTInt:
switch (funcType()) {
case TableExprFuncNode::gminsFUNC:
return new TableExprGroupMinsArrayInt(this);
case TableExprFuncNode::gmaxsFUNC:
return new TableExprGroupMaxsArrayInt(this);
case TableExprFuncNode::gsumsFUNC:
return new TableExprGroupSumsArrayInt(this);
case TableExprFuncNode::gproductsFUNC:
return new TableExprGroupProductsArrayInt(this);
case TableExprFuncNode::gsumsqrsFUNC:
return new TableExprGroupSumSqrsArrayInt(this);
default:
break;
}
// Fall through, so e.g. mean of ints can be done
CASACORE_FALLTHROUGH;
case NTDouble:
switch (funcType()) {
case TableExprFuncNode::gminsFUNC:
return new TableExprGroupMinsArrayDouble(this);
case TableExprFuncNode::gmaxsFUNC:
return new TableExprGroupMaxsArrayDouble(this);
case TableExprFuncNode::gsumsFUNC:
return new TableExprGroupSumsArrayDouble(this);
case TableExprFuncNode::gproductsFUNC:
return new TableExprGroupProductsArrayDouble(this);
case TableExprFuncNode::gsumsqrsFUNC:
return new TableExprGroupSumSqrsArrayDouble(this);
case TableExprFuncNode::gmeansFUNC:
return new TableExprGroupMeansArrayDouble(this);
case TableExprFuncNode::gvariances0FUNC:
return new TableExprGroupVariancesArrayDouble(this, 0);
case TableExprFuncNode::gvariances1FUNC:
return new TableExprGroupVariancesArrayDouble(this, 1);
case TableExprFuncNode::gstddevs0FUNC:
return new TableExprGroupStdDevsArrayDouble(this, 0);
case TableExprFuncNode::gstddevs1FUNC:
return new TableExprGroupStdDevsArrayDouble(this, 1);
case TableExprFuncNode::grmssFUNC:
return new TableExprGroupRmssArrayDouble(this);
default:
throw TableInvExpr ("Aggregate function " +
String::toString(funcType()) +
" cannot be used with an integer/double argument");
}
case NTComplex:
switch (funcType()) {
case TableExprFuncNode::gsumsFUNC:
return new TableExprGroupSumsArrayDComplex(this);
case TableExprFuncNode::gproductsFUNC:
return new TableExprGroupProductsArrayDComplex(this);
case TableExprFuncNode::gsumsqrsFUNC:
return new TableExprGroupSumSqrsArrayDComplex(this);
case TableExprFuncNode::gmeansFUNC:
return new TableExprGroupMeansArrayDComplex(this);
case TableExprFuncNode::gvariances0FUNC:
return new TableExprGroupVariancesArrayDComplex(this, 0);
case TableExprFuncNode::gvariances1FUNC:
return new TableExprGroupVariancesArrayDComplex(this, 1);
case TableExprFuncNode::gstddevs0FUNC:
return new TableExprGroupStdDevsArrayDComplex(this, 0);
case TableExprFuncNode::gstddevs1FUNC:
return new TableExprGroupStdDevsArrayDComplex(this, 1);
default:
throw TableInvExpr ("Aggregate function " +
String::toString(funcType()) +
" cannot be used with a dcomplex argument");
}
default:
break;
}
throw TableInvExpr ("Array aggregate function " +
String::toString(funcType()) +
" is unknown");
}
MArray<Bool> TableExprAggrNodeArray::getArrayBool (const TableExprId& id)
{
const TableExprIdAggr& aid = TableExprIdAggr::cast (id);
if (itsFunc->isLazy()) {
return itsFunc->getArrayBool (aid.result().ids(id.rownr()));
}
TableExprGroupFuncSet& set = aid.result().funcSet(id.rownr());
return set.getFuncs()[itsFunc->seqnr()]->getArrayBool();
}
MArray<Int64> TableExprAggrNodeArray::getArrayInt (const TableExprId& id)
{
const TableExprIdAggr& aid = TableExprIdAggr::cast (id);
if (itsFunc->isLazy()) {
return itsFunc->getArrayInt (aid.result().ids(id.rownr()));
}
TableExprGroupFuncSet& set = aid.result().funcSet(id.rownr());
return set.getFuncs()[itsFunc->seqnr()]->getArrayInt();
}
MArray<Double> TableExprAggrNodeArray::getArrayDouble (const TableExprId& id)
{
if (dataType() != NTDouble) {
return TableExprNodeArray::getArrayDouble (id);
}
const TableExprIdAggr& aid = TableExprIdAggr::cast (id);
if (itsFunc->isLazy()) {
return itsFunc->getArrayDouble (aid.result().ids(id.rownr()));
}
TableExprGroupFuncSet& set = aid.result().funcSet(id.rownr());
return set.getFuncs()[itsFunc->seqnr()]->getArrayDouble();
}
MArray<DComplex> TableExprAggrNodeArray::getArrayDComplex (const TableExprId& id)
{
if (dataType() != NTComplex) {
return TableExprNodeArray::getArrayDComplex (id);
}
const TableExprIdAggr& aid = TableExprIdAggr::cast (id);
if (itsFunc->isLazy()) {
return itsFunc->getArrayDComplex (aid.result().ids(id.rownr()));
}
TableExprGroupFuncSet& set = aid.result().funcSet(id.rownr());
return set.getFuncs()[itsFunc->seqnr()]->getArrayDComplex();
}
MArray<String> TableExprAggrNodeArray::getArrayString (const TableExprId& id)
{
const TableExprIdAggr& aid = TableExprIdAggr::cast (id);
if (itsFunc->isLazy()) {
return itsFunc->getArrayString (aid.result().ids(id.rownr()));
}
TableExprGroupFuncSet& set = aid.result().funcSet(id.rownr());
return set.getFuncs()[itsFunc->seqnr()]->getArrayString();
}
MArray<MVTime> TableExprAggrNodeArray::getArrayDate (const TableExprId& id)
{
const TableExprIdAggr& aid = TableExprIdAggr::cast (id);
if (itsFunc->isLazy()) {
return itsFunc->getArrayDate (aid.result().ids(id.rownr()));
}
TableExprGroupFuncSet& set = aid.result().funcSet(id.rownr());
return set.getFuncs()[itsFunc->seqnr()]->getArrayDate();
}
} //# NAMESPACE CASACORE - END
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