/**
* 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 .
*
* 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::kQuery
#include "mongo/platform/basic.h"
#include "mongo/db/query/killcursors_response.h"
#include "mongo/rpc/get_status_from_command_result.h"
namespace mongo {
namespace {
const char kKilledField[] = "cursorsKilled";
const char kNotFoundField[] = "cursorsNotFound";
const char kAliveField[] = "cursorsAlive";
const char kUnknownField[] = "cursorsUnknown";
Status fillOutCursorArray(const BSONObj& cmdResponse,
StringData fieldName,
std::vector* cursorIds) {
BSONElement elt = cmdResponse[fieldName];
if (elt.type() != BSONType::Array) {
return {ErrorCodes::FailedToParse,
str::stream() << "Field '" << fieldName
<< "' must be of type array in: " << cmdResponse};
}
for (BSONElement cursorElt : elt.Obj()) {
if (cursorElt.type() != BSONType::NumberLong) {
return {ErrorCodes::FailedToParse,
str::stream() << "Field '" << fieldName
<< "' contains an element that is not of type long: "
<< cursorElt};
}
cursorIds->push_back(cursorElt.numberLong());
}
return Status::OK();
}
void addCursorArrayToBSON(const std::vector& cursorIds,
StringData fieldName,
BSONObjBuilder* builder) {
BSONArrayBuilder idsBuilder(builder->subarrayStart(fieldName));
for (CursorId id : cursorIds) {
idsBuilder.append(id);
}
idsBuilder.doneFast();
}
} // namespace
KillCursorsResponse::KillCursorsResponse() {}
KillCursorsResponse::KillCursorsResponse(const std::vector& killed,
const std::vector& notFound,
const std::vector& alive,
const std::vector& unknown)
: cursorsKilled(killed),
cursorsNotFound(notFound),
cursorsAlive(alive),
cursorsUnknown(unknown) {}
StatusWith KillCursorsResponse::parseFromBSON(const BSONObj& cmdResponse) {
Status cmdStatus = getStatusFromCommandResult(cmdResponse);
if (!cmdStatus.isOK()) {
return cmdStatus;
}
std::vector cursorsKilled;
Status killedStatus = fillOutCursorArray(cmdResponse, kKilledField, &cursorsKilled);
if (!killedStatus.isOK()) {
return killedStatus;
}
std::vector cursorsNotFound;
Status notFoundStatus = fillOutCursorArray(cmdResponse, kNotFoundField, &cursorsNotFound);
if (!notFoundStatus.isOK()) {
return notFoundStatus;
}
std::vector cursorsAlive;
Status aliveStatus = fillOutCursorArray(cmdResponse, kAliveField, &cursorsAlive);
if (!aliveStatus.isOK()) {
return aliveStatus;
}
std::vector cursorsUnknown;
Status unknownStatus = fillOutCursorArray(cmdResponse, kUnknownField, &cursorsUnknown);
if (!unknownStatus.isOK()) {
return unknownStatus;
}
return KillCursorsResponse(cursorsKilled, cursorsNotFound, cursorsAlive, cursorsUnknown);
}
BSONObj KillCursorsResponse::toBSON() const {
BSONObjBuilder builder;
addToBSON(&builder);
builder.append("ok", 1.0);
return builder.obj();
}
void KillCursorsResponse::addToBSON(BSONObjBuilder* builder) const {
addCursorArrayToBSON(cursorsKilled, kKilledField, builder);
addCursorArrayToBSON(cursorsNotFound, kNotFoundField, builder);
addCursorArrayToBSON(cursorsAlive, kAliveField, builder);
addCursorArrayToBSON(cursorsUnknown, kUnknownField, builder);
}
} // namespace mongo