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/**
* Copyright (C) 2015 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.
*/
#include "mongo/platform/basic.h"
#include "mongo/rpc/metadata.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/db/jsobj.h"
#include "mongo/rpc/metadata/audit_metadata.h"
#include "mongo/rpc/metadata/sharding_metadata.h"
#include "mongo/rpc/metadata/server_selection_metadata.h"
namespace mongo {
namespace rpc {
BSONObj makeEmptyMetadata() {
return BSONObj();
}
Status readRequestMetadata(OperationContext* txn, const BSONObj& metadataObj) {
auto swServerSelectionMetadata = ServerSelectionMetadata::readFromMetadata(metadataObj);
if (!swServerSelectionMetadata.isOK()) {
return swServerSelectionMetadata.getStatus();
}
ServerSelectionMetadata::get(txn) = std::move(swServerSelectionMetadata.getValue());
return Status::OK();
}
Status writeRequestMetadata(OperationContext* txn, BSONObjBuilder* metadataBob) {
auto ssStatus = ServerSelectionMetadata::writeToMetadata(
ServerSelectionMetadata::get(txn),
metadataBob
);
if (!ssStatus.isOK()) {
return ssStatus;
}
return Status::OK();
}
StatusWith<CommandAndMetadata> upconvertRequestMetadata(BSONObj legacyCmdObj, int queryFlags) {
BSONObjBuilder commandBob;
BSONObjBuilder metadataBob;
auto upconvertStatus = ServerSelectionMetadata::upconvert(legacyCmdObj,
queryFlags,
&commandBob,
&metadataBob);
if (!upconvertStatus.isOK()) {
return upconvertStatus;
}
return std::make_tuple(commandBob.obj(), metadataBob.obj());
}
StatusWith<LegacyCommandAndFlags> downconvertRequestMetadata(BSONObj cmdObj, BSONObj metadata) {
int legacyQueryFlags = 0;
BSONObjBuilder legacyCommandBob;
StatusWith<CommandReplyWithMetadata> upconvertReplyMetadata(BSONObj legacyReply) {
BSONObjBuilder commandReplyBob;
BSONObjBuilder metadataBob;
auto upconvertStatus = ShardingMetadata::upconvert(legacyReply,
&commandReplyBob,
&metadataBob);
if (!upconvertStatus.isOK()) {
return upconvertStatus;
}
return std::make_tuple(commandReplyBob.obj(), metadataBob.obj());
}
StatusWith<BSONObj> downconvertReplyMetadata(BSONObj commandReply, BSONObj replyMetadata) {
BSONObjBuilder legacyCommandReplyBob;
auto downconvertStatus = ShardingMetadata::downconvert(commandReply,
replyMetadata,
&legacyCommandReplyBob);
if (!downconvertStatus.isOK()) {
return downconvertStatus;
}
return std::make_tuple(legacyCommandBob.obj(), std::move(legacyQueryFlags));
}
} // namespace rpc
} // namespace mongo
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