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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/commands/plan_cache_commands.h"
#include "mongo/db/matcher/extensions_callback_real.h"
namespace mongo::plan_cache_commands {
StatusWith<std::unique_ptr<CanonicalQuery>> canonicalize(OperationContext* opCtx,
StringData ns,
const BSONObj& cmdObj) {
// query - required
BSONElement queryElt = cmdObj.getField("query");
if (queryElt.eoo()) {
return Status(ErrorCodes::BadValue, "required field query missing");
}
if (!queryElt.isABSONObj()) {
return Status(ErrorCodes::BadValue, "required field query must be an object");
}
if (queryElt.eoo()) {
return Status(ErrorCodes::BadValue, "required field query missing");
}
BSONObj queryObj = queryElt.Obj();
// sort - optional
BSONElement sortElt = cmdObj.getField("sort");
BSONObj sortObj;
if (!sortElt.eoo()) {
if (!sortElt.isABSONObj()) {
return Status(ErrorCodes::BadValue, "optional field sort must be an object");
}
sortObj = sortElt.Obj();
}
// projection - optional
BSONElement projElt = cmdObj.getField("projection");
BSONObj projObj;
if (!projElt.eoo()) {
if (!projElt.isABSONObj()) {
return Status(ErrorCodes::BadValue, "optional field projection must be an object");
}
projObj = projElt.Obj();
}
// collation - optional
BSONObj collationObj;
if (auto collationElt = cmdObj["collation"]) {
if (!collationElt.isABSONObj()) {
return Status(ErrorCodes::BadValue, "optional field collation must be an object");
}
collationObj = collationElt.Obj();
if (collationObj.isEmpty()) {
return Status(ErrorCodes::BadValue,
"optional field collation cannot be an empty object");
}
}
// Create canonical query
auto findCommand = std::make_unique<FindCommand>(NamespaceString{ns});
findCommand->setFilter(queryObj.getOwned());
findCommand->setSort(sortObj.getOwned());
findCommand->setProjection(projObj.getOwned());
findCommand->setCollation(collationObj.getOwned());
const ExtensionsCallbackReal extensionsCallback(
opCtx, findCommand->getNamespaceOrUUID().nss().get_ptr());
const boost::intrusive_ptr<ExpressionContext> expCtx;
auto statusWithCQ =
CanonicalQuery::canonicalize(opCtx,
std::move(findCommand),
false,
expCtx,
extensionsCallback,
MatchExpressionParser::kAllowAllSpecialFeatures);
if (!statusWithCQ.isOK()) {
return statusWithCQ.getStatus();
}
return std::move(statusWithCQ.getValue());
}
} // namespace mongo::plan_cache_commands
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