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/**
* Copyright (C) 2017 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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.
*/
#pragma once
#include <cstddef>
#include <set>
#include <vector>
#include "mongo/bson/bsonobj.h"
#include "mongo/db/repl/idempotency_scalar_generator.h"
namespace mongo {
class BSONArrayBuilder;
class StringData;
struct DocumentStructureEnumeratorConfig {
DocumentStructureEnumeratorConfig(std::set<StringData> fields_,
std::size_t depth_,
std::size_t length_,
bool skipSubDocs_ = false,
bool skipSubArrs_ = false);
std::set<StringData> fields = {};
std::size_t depth = 0;
std::size_t length = 0;
const bool skipSubDocs = false;
const bool skipSubArrs = false;
};
class DocumentStructureEnumerator {
public:
using iterator = std::vector<BSONObj>::const_iterator;
DocumentStructureEnumerator(DocumentStructureEnumeratorConfig config,
const ScalarGenerator* scalarGenerator);
iterator begin() const;
iterator end() const;
std::vector<BSONObj> getDocs() const;
std::vector<BSONObj> enumerateDocs() const;
std::vector<BSONArray> enumerateArrs() const;
private:
static BSONArrayBuilder _getArrayBuilderFromArr(BSONArray arr);
static void _enumerateFixedLenArrs(const DocumentStructureEnumeratorConfig& config,
const ScalarGenerator* scalarGenerator,
BSONArray arr,
std::vector<BSONArray>* arrs);
static void _enumerateDocs(const DocumentStructureEnumeratorConfig& config,
const ScalarGenerator* scalarGenerator,
BSONObj doc,
std::vector<BSONObj>* docs);
static std::vector<BSONArray> _enumerateArrs(const DocumentStructureEnumeratorConfig& config,
const ScalarGenerator* scalarGenerator);
const DocumentStructureEnumeratorConfig _config;
const ScalarGenerator* _scalarGenerator;
std::vector<BSONObj> _docs;
};
} // namespace mongo
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