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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/matcher/schema/expression_internal_schema_fmod.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/bsonobjbuilder.h"
namespace mongo {
InternalSchemaFmodMatchExpression::InternalSchemaFmodMatchExpression(
StringData path,
Decimal128 divisor,
Decimal128 remainder,
clonable_ptr<ErrorAnnotation> annotation)
: LeafMatchExpression(MatchType::INTERNAL_SCHEMA_FMOD, path, std::move(annotation)),
_divisor(divisor),
_remainder(remainder) {
uassert(ErrorCodes::BadValue, "divisor cannot be 0", !divisor.isZero());
uassert(ErrorCodes::BadValue, "divisor cannot be NaN", !divisor.isNaN());
uassert(ErrorCodes::BadValue, "divisor cannot be infinite", !divisor.isInfinite());
}
bool InternalSchemaFmodMatchExpression::matchesSingleElement(const BSONElement& e,
MatchDetails* details) const {
if (!e.isNumber()) {
return false;
}
std::uint32_t flags = Decimal128::SignalingFlag::kNoFlag;
Decimal128 result = e.numberDecimal().modulo(_divisor, &flags);
if (flags == Decimal128::SignalingFlag::kNoFlag) {
return result.isEqual(_remainder);
}
return false;
}
void InternalSchemaFmodMatchExpression::debugString(StringBuilder& debug,
int indentationLevel) const {
_debugAddSpace(debug, indentationLevel);
debug << path() << " fmod: divisor: " << _divisor.toString()
<< " remainder: " << _remainder.toString();
MatchExpression::TagData* td = getTag();
if (td) {
debug << " ";
td->debugString(&debug);
}
debug << "\n";
}
BSONObj InternalSchemaFmodMatchExpression::getSerializedRightHandSide() const {
BSONObjBuilder objMatchBob;
BSONArrayBuilder arrBuilder(objMatchBob.subarrayStart("$_internalSchemaFmod"));
arrBuilder.append(_divisor);
arrBuilder.append(_remainder);
arrBuilder.doneFast();
return objMatchBob.obj();
}
bool InternalSchemaFmodMatchExpression::equivalent(const MatchExpression* other) const {
if (matchType() != other->matchType()) {
return false;
}
const InternalSchemaFmodMatchExpression* realOther =
static_cast<const InternalSchemaFmodMatchExpression*>(other);
return path() == realOther->path() && _divisor.isEqual(realOther->_divisor) &&
_remainder.isEqual(realOther->_remainder);
}
} // namespace mongo
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