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/**
* Copyright (C) 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/global_environment_experiment.h"
#include "mongo/bson/bsonobjiterator.h"
#include "mongo/db/operation_context.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/mongoutils/str.h"
namespace mongo {
namespace {
GlobalEnvironmentExperiment* globalEnvironmentExperiment = NULL;
} // namespace
bool hasGlobalEnvironment() {
return globalEnvironmentExperiment;
}
GlobalEnvironmentExperiment* getGlobalEnvironment() {
fassert(17508, globalEnvironmentExperiment);
return globalEnvironmentExperiment;
}
void setGlobalEnvironment(GlobalEnvironmentExperiment* newGlobalEnvironment) {
fassert(17509, newGlobalEnvironment);
if (NULL != globalEnvironmentExperiment) {
delete globalEnvironmentExperiment;
}
globalEnvironmentExperiment = newGlobalEnvironment;
}
bool _supportsDocLocking = false;
bool supportsDocLocking() {
return _supportsDocLocking;
}
bool isMMAPV1() {
invariant(hasGlobalEnvironment());
StorageEngine* globalStorageEngine = getGlobalEnvironment()->getGlobalStorageEngine();
invariant(globalStorageEngine);
return globalStorageEngine->isMmapV1();
}
Status validateStorageOptions(
const BSONObj& storageEngineOptions,
stdx::function<Status(const StorageEngine::Factory* const, const BSONObj&)> validateFunc) {
BSONObjIterator storageIt(storageEngineOptions);
while (storageIt.more()) {
BSONElement storageElement = storageIt.next();
StringData storageEngineName = storageElement.fieldNameStringData();
if (storageElement.type() != mongo::Object) {
return Status(ErrorCodes::BadValue,
str::stream() << "'storageEngine." << storageElement.fieldNameStringData()
<< "' has to be an embedded document.");
}
boost::scoped_ptr<StorageFactoriesIterator> sfi(
getGlobalEnvironment()->makeStorageFactoriesIterator());
invariant(sfi);
bool found = false;
while (sfi->more()) {
const StorageEngine::Factory* const& factory = sfi->next();
if (storageEngineName != factory->getCanonicalName()) {
continue;
}
Status status = validateFunc(factory, storageElement.Obj());
if (!status.isOK()) {
return status;
}
found = true;
}
if (!found) {
return Status(ErrorCodes::InvalidOptions,
str::stream() << storageEngineName
<< " is not a registered storage engine for this server");
}
}
return Status::OK();
}
} // namespace mongo
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