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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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kReplication
#include "mongo/platform/basic.h"
#include "mongo/db/repl/read_after_optime_args.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/jsobj.h"
#include "mongo/util/mongoutils/str.h"
using std::string;
namespace mongo {
namespace repl {
const string ReadAfterOpTimeArgs::kRootFieldName("$readConcern");
const string ReadAfterOpTimeArgs::kOpTimeFieldName("afterOpTime");
const string ReadAfterOpTimeArgs::kOpTimestampFieldName("ts");
const string ReadAfterOpTimeArgs::kOpTermFieldName("term");
ReadAfterOpTimeArgs::ReadAfterOpTimeArgs() : ReadAfterOpTimeArgs(OpTime()) {}
ReadAfterOpTimeArgs::ReadAfterOpTimeArgs(OpTime opTime) : _opTime(std::move(opTime)) {}
const OpTime& ReadAfterOpTimeArgs::getOpTime() const {
return _opTime;
}
Status ReadAfterOpTimeArgs::initialize(const BSONObj& cmdObj) {
auto afterElem = cmdObj[ReadAfterOpTimeArgs::kRootFieldName];
if (afterElem.eoo()) {
return Status::OK();
}
if (!afterElem.isABSONObj()) {
return Status(ErrorCodes::FailedToParse, "'after' field should be an object");
}
BSONObj readAfterObj = afterElem.Obj();
BSONElement opTimeElem;
auto opTimeStatus = bsonExtractTypedField(
readAfterObj, ReadAfterOpTimeArgs::kOpTimeFieldName, Object, &opTimeElem);
if (!opTimeStatus.isOK()) {
return opTimeStatus;
}
BSONObj opTimeObj = opTimeElem.Obj();
BSONElement timestampElem;
Timestamp timestamp;
auto timestampStatus = bsonExtractTimestampField(
opTimeObj, ReadAfterOpTimeArgs::kOpTimestampFieldName, ×tamp);
if (!timestampStatus.isOK()) {
return timestampStatus;
}
long long termNumber;
auto termStatus =
bsonExtractIntegerField(opTimeObj, ReadAfterOpTimeArgs::kOpTermFieldName, &termNumber);
if (!termStatus.isOK()) {
return termStatus;
}
_opTime = OpTime(timestamp, termNumber);
return Status::OK();
}
} // namespace repl
} // namespace mongo
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