diff options
Diffstat (limited to 'src/mongo/db/query/ce/stats_serialization_utils.cpp')
-rw-r--r-- | src/mongo/db/query/ce/stats_serialization_utils.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/mongo/db/query/ce/stats_serialization_utils.cpp b/src/mongo/db/query/ce/stats_serialization_utils.cpp new file mode 100644 index 00000000000..c1e7d4dcef0 --- /dev/null +++ b/src/mongo/db/query/ce/stats_serialization_utils.cpp @@ -0,0 +1,102 @@ +/** + * 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 |