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/**
* Copyright (C) 2013 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 <string>
#include <vector>
#include "mongo/base/string_data.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/bson/optime.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/s/multi_command_dispatch.h"
#include "mongo/s/write_ops/batch_write_exec.h"
#include "mongo/s/write_ops/batch_write_op.h"
#include "mongo/s/write_ops/batched_command_request.h"
#include "mongo/s/write_ops/batched_command_response.h"
#include "mongo/s/write_ops/write_error_detail.h"
// TODO: Remove post-2.6
namespace mongo {
// Used for reporting legacy write concern responses
struct LegacyWCResponse {
std::string shardHost;
BSONObj gleResponse;
std::string errToReport;
};
/**
* Uses GLE and the shard hosts and opTimes last written by write commands to enforce a
* write concern across the previously used shards.
*
* Returns OK with the LegacyWCResponses containing only write concern error information
* Returns !OK if there was an error getting a GLE response
*/
Status enforceLegacyWriteConcern( MultiCommandDispatch* dispatcher,
StringData dbName,
const BSONObj& options,
const HostOpTimeMap& hostOpTimes,
std::vector<LegacyWCResponse>* wcResponses );
//
// Below exposed for testing only
//
// Helper that acts as an auto-ptr for write and wc errors
struct GLEErrors {
std::auto_ptr<WriteErrorDetail> writeError;
std::auto_ptr<WCErrorDetail> wcError;
};
/**
* Given a GLE response, extracts a write error and a write concern error for the previous
* operation.
*
* Returns !OK if the GLE itself failed in an unknown way.
*/
Status extractGLEErrors( const BSONObj& gleResponse, GLEErrors* errors );
/**
* Given a GLE response, strips out all non-write-concern related information
*/
BSONObj stripNonWCInfo( const BSONObj& gleResponse );
}
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