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/**
* Copyright (C) 2016 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 <vector>
#include "mongo/base/status_with.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/namespace_string.h"
namespace mongo {
/**
* Provides support for parsing and serialization of arguments to the config server mergeChunk
* command.
*/
class MergeChunkRequest {
public:
MergeChunkRequest(NamespaceString nss,
std::string shardName,
OID epoch,
std::vector<BSONObj> chunkBoundaries,
boost::optional<Timestamp> validAfter);
/**
* Parses the provided BSON content as the internal _configsvrCommitChunkMerge command, and if
* it contains the correct types, constructs a MergeChunkRequest object from it.
*
* {
* _configsvrCommitChunkMerge: <NamespaceString nss>,
* collEpoch: <OID epoch>,
* chunkBoundaries: [
* <BSONObj key1>,
* <BSONObj key2>,
* ...
* ],
* shard: <string shard>
* }
*/
static StatusWith<MergeChunkRequest> parseFromConfigCommand(const BSONObj& cmdObj);
/**
* Creates a BSONObjBuilder and uses it to create and return a BSONObj from this
* MergeChunkRequest instance. Calls appendAsConfigCommand and tacks on the passed-in
* writeConcern.
*/
BSONObj toConfigCommandBSON(const BSONObj& writeConcern);
/**
* Creates a serialized BSONObj of the internal _configsvCommitChunkMerge command from this
* MergeChunkRequest instance.
*/
void appendAsConfigCommand(BSONObjBuilder* cmdBuilder);
const NamespaceString& getNamespace() const {
return _nss;
}
const OID& getEpoch() const {
return _epoch;
}
const std::vector<BSONObj>& getChunkBoundaries() const {
return _chunkBoundaries;
}
const std::string& getShardName() const {
return _shardName;
}
const boost::optional<Timestamp>& getValidAfter() const {
return _validAfter;
}
private:
NamespaceString _nss;
OID _epoch;
// The boundaries of the chunks to be merged.
std::vector<BSONObj> _chunkBoundaries;
std::string _shardName;
boost::optional<Timestamp> _validAfter;
};
} // namespace mongo
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