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/**
* Copyright (C) 2023-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/db/query/query_shape/query_shape.h"
#include "mongo/base/status.h"
#include "mongo/crypto/sha256_block.h"
#include "mongo/db/query/find_command_gen.h"
#include "mongo/db/query/projection_ast_util.h"
#include "mongo/db/query/query_request_helper.h"
#include "mongo/db/query/query_shape/agg_cmd_shape.h"
#include "mongo/db/query/query_shape/find_cmd_shape.h"
#include "mongo/db/query/query_shape/query_shape_gen.h"
#include "mongo/db/query/query_shape/shape_helpers.h"
#include "mongo/db/query/sort_pattern.h"
namespace mongo::query_shape {
namespace {
void appendCmdNs(BSONObjBuilder& bob,
const NamespaceString& nss,
const SerializationOptions& opts) {
BSONObjBuilder nsObj = bob.subobjStart("cmdNs");
shape_helpers::appendNamespaceShape(nsObj, nss, opts);
nsObj.doneFast();
}
} // namespace
Shape::Shape(NamespaceStringOrUUID nssOrUUID_, BSONObj collation_)
: nssOrUUID(nssOrUUID_), collation(std::move(collation_)) {}
BSONObj Shape::toBson(OperationContext* opCtx, const SerializationOptions& opts) const {
BSONObjBuilder bob;
appendCmdNsOrUUID(bob, opts);
if (!collation.isEmpty()) {
// Collation is never shapified. We use find command's collation name definition, but it
// should be the same for all requests.
bob.append(FindCommandRequest::kCollationFieldName, collation);
}
appendCmdSpecificShapeComponents(bob, opCtx, opts);
return bob.obj();
}
size_t Shape::size() const {
return sizeof(Shape) + shape_helpers::optionalObjSize(collation) + specificComponents().size() +
extraSize();
}
QueryShapeHash Shape::sha256Hash(OperationContext* opCtx) const {
// The Query Shape Hash should use the representative query shape.
auto serialized =
toBson(opCtx, SerializationOptions::kRepresentativeQueryShapeSerializeOptions);
return SHA256Block::computeHash((const uint8_t*)serialized.sharedBuffer().get(),
serialized.objsize());
}
void Shape::appendCmdNsOrUUID(BSONObjBuilder& bob, const SerializationOptions& opts) const {
if (nssOrUUID.nss()) {
appendCmdNs(bob, *nssOrUUID.nss(), opts);
} else {
BSONObjBuilder cmdNs = bob.subobjStart("cmdNs");
cmdNs.append("uuid", opts.serializeIdentifier(nssOrUUID.uuid()->toString()));
cmdNs.append("db", opts.serializeIdentifier(nssOrUUID.db()));
cmdNs.doneFast();
}
}
void Shape::appendCmdNs(BSONObjBuilder& bob,
const NamespaceString& nss,
const SerializationOptions& opts) const {
BSONObjBuilder nsObj = bob.subobjStart("cmdNs");
shape_helpers::appendNamespaceShape(nsObj, nss, opts);
nsObj.doneFast();
}
} // namespace mongo::query_shape
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