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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/find_request_shapifier.h"
#include "mongo/db/query/projection_ast_util.h"
#include "mongo/db/query/projection_parser.h"
#include "mongo/db/query/query_request_helper.h"
#include "mongo/db/query/query_shape.h"
namespace mongo::query_stats {
void addNonShapeObjCmdLiterals(BSONObjBuilder* bob,
const FindCommandRequest& findCommand,
const SerializationOptions& opts,
const boost::intrusive_ptr<ExpressionContext>& expCtx) {
if (auto noCursorTimeout = findCommand.getNoCursorTimeout()) {
// Capture whether noCursorTimeout was specified in the query, do not distinguish between
// true or false.
opts.appendLiteral(
bob, FindCommandRequest::kNoCursorTimeoutFieldName, noCursorTimeout.has_value());
}
if (auto maxTimeMs = findCommand.getMaxTimeMS()) {
opts.appendLiteral(bob, FindCommandRequest::kMaxTimeMSFieldName, *maxTimeMs);
}
if (auto batchSize = findCommand.getBatchSize()) {
opts.appendLiteral(
bob, FindCommandRequest::kBatchSizeFieldName, static_cast<long long>(*batchSize));
}
}
BSONObj FindRequestShapifier::makeQueryStatsKey(const SerializationOptions& opts,
OperationContext* opCtx) const {
auto expCtx = make_intrusive<ExpressionContext>(
opCtx, _request, nullptr /* collator doesn't matter here.*/, false /* mayDbProfile */);
expCtx->maxFeatureCompatibilityVersion = boost::none; // Ensure all features are allowed.
// Expression counters are reported in serverStatus to indicate how often clients use certain
// expressions/stages, so it's a side effect tied to parsing. We must stop expression counters
// before re-parsing to avoid adding to the counters more than once per a given query.
expCtx->stopExpressionCounters();
return makeQueryStatsKey(opts, expCtx);
}
BSONObj FindRequestShapifier::makeQueryStatsKey(
const SerializationOptions& opts, const boost::intrusive_ptr<ExpressionContext>& expCtx) const {
BSONObjBuilder bob;
bob.append("queryShape", query_shape::extractQueryShape(_request, opts, expCtx));
if (auto optObj = _request.getReadConcern()) {
// Read concern should not be considered a literal.
bob.append(FindCommandRequest::kReadConcernFieldName, optObj.get());
}
// has_value() returns true if allowParitalResults was populated by the original query.
if (_request.getAllowPartialResults().has_value()) {
// Note we are intentionally avoiding opts.appendLiteral() here and want to keep the exact
// value. value_or() will return the stored value, or the default that is passed in. Since
// we've already checked that allowPartialResults has a stored value, the default will never
// be used.
bob.append(FindCommandRequest::kAllowPartialResultsFieldName,
_request.getAllowPartialResults().value_or(false));
}
// Fields for literal redaction. Adds batchSize, maxTimeMS, and noCursorTimeOut.
addNonShapeObjCmdLiterals(&bob, _request, opts, expCtx);
if (_comment) {
opts.appendLiteral(&bob, "comment", *_comment);
}
if (_applicationName.has_value()) {
bob.append("applicationName", _applicationName.value());
}
return bob.obj();
}
} // namespace mongo::query_stats
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