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/**
* Copyright (C) 2022-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/ce/stats_serialization_utils.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/db/exec/sbe/values/bson.h"
namespace mongo::stats_serialization_utils {
BSONObj makeStatsBucket(TypeValuePair typeValue,
long long boundaryCount,
long long rangeCount,
long long rangeDistincts,
long long cumulativeCount,
long long cumulativeDistincts) {
BSONObjBuilder bucketBuilder;
sbe::bson::appendValueToBsonObj(
bucketBuilder, "upperBoundary", typeValue.first, typeValue.second);
bucketBuilder.append("boundaryCount", boundaryCount);
bucketBuilder.append("rangeCount", rangeCount);
bucketBuilder.append("rangeDistincts", rangeDistincts);
bucketBuilder.append("cumulativeCount", cumulativeCount);
bucketBuilder.append("cumulativeDistincts", cumulativeDistincts);
return bucketBuilder.obj();
}
BSONObj makeStatsPath(StringData path,
long long documents,
boost::optional<long long> documentsSampled,
boost::optional<double> samplingRate,
boost::optional<long long> samplesRequested,
boost::optional<std::pair<long long, long long>> boolCount,
boost::optional<TypeCount> typeCount,
boost::optional<std::list<BSONObj>> scalarHistogram,
boost::optional<BSONObj> arrayHistogram) {
BSONObjBuilder statsBuilder;
statsBuilder.append("path", path);
statsBuilder.append("documents", documents);
if (documentsSampled) {
statsBuilder.append("documentsSampled", *documentsSampled);
}
if (samplingRate) {
statsBuilder.append("samplingRate", *samplingRate);
}
if (samplesRequested) {
statsBuilder.append("samplesRequested", *samplesRequested);
}
if (boolCount) {
BSONObjBuilder boolCountBuilder = statsBuilder.subobjStart("boolCount");
boolCountBuilder.append("trueCount", boolCount->first);
boolCountBuilder.append("falseCount", boolCount->second);
boolCountBuilder.done();
}
if (typeCount) {
BSONArrayBuilder typeCountBuilder = statsBuilder.subarrayStart("typeCount");
for (const auto& typeElem : *typeCount) {
auto typeElemObj = BSON("typeName" << typeElem.first << "count" << typeElem.second);
typeCountBuilder.append(typeElemObj);
}
typeCountBuilder.done();
}
if (scalarHistogram) {
BSONArrayBuilder histArrBuilder = statsBuilder.subarrayStart("scalarHistogram");
histArrBuilder.append(*scalarHistogram);
histArrBuilder.done();
}
if (arrayHistogram) {
statsBuilder.append("arrayHistogram", *arrayHistogram);
}
return statsBuilder.obj();
}
} // namespace mongo::stats_serialization_utils
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