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/**
* Copyright 2014 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/db/repl/handshake_args.h"
#include "mongo/base/status.h"
#include "mongo/bson/util/bson_check.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/jsobj.h"
namespace mongo {
namespace repl {
namespace {
const std::string kRIDFieldName = "handshake";
// TODO(danneberg) remove after 3.0 since this field is only allowed for backwards compatibility
const std::string kOldMemberConfigFieldName = "config";
const std::string kMemberIdFieldName = "member";
const std::string kLegalHandshakeFieldNames[] = {
kRIDFieldName, kOldMemberConfigFieldName, kMemberIdFieldName};
} // namespace
HandshakeArgs::HandshakeArgs() : _hasRid(false), _hasMemberId(false), _rid(OID()), _memberId(-1) {}
Status HandshakeArgs::initialize(const BSONObj& argsObj) {
Status status = bsonCheckOnlyHasFields("HandshakeArgs", argsObj, kLegalHandshakeFieldNames);
if (!status.isOK())
return status;
BSONElement oid;
status = bsonExtractTypedField(argsObj, kRIDFieldName, jstOID, &oid);
if (!status.isOK())
return status;
_rid = oid.OID();
_hasRid = true;
status = bsonExtractIntegerField(argsObj, kMemberIdFieldName, &_memberId);
if (!status.isOK()) {
// field not necessary for master slave, do not return NoSuchKey Error
if (status != ErrorCodes::NoSuchKey) {
return status;
}
_memberId = -1;
} else {
_hasMemberId = true;
}
return Status::OK();
}
bool HandshakeArgs::isInitialized() const {
return _hasRid;
}
void HandshakeArgs::setRid(const OID& newVal) {
_rid = newVal;
_hasRid = true;
}
void HandshakeArgs::setMemberId(long long newVal) {
_memberId = newVal;
_hasMemberId = true;
}
BSONObj HandshakeArgs::toBSON() const {
invariant(isInitialized());
BSONObjBuilder builder;
builder.append(kRIDFieldName, _rid);
builder.append(kMemberIdFieldName, _memberId);
return builder.obj();
}
} // namespace repl
} // namespace mongo
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