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/**
* Copyright (C) 2013 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/ops/update_lifecycle_impl.h"
#include "mongo/db/client.h"
#include "mongo/db/catalog/database.h"
#include "mongo/db/field_ref.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/s/collection_metadata.h"
#include "mongo/db/s/sharding_state.h"
namespace mongo {
namespace {
std::shared_ptr<CollectionMetadata> getMetadata(const NamespaceString& nsString) {
if (ShardingState::get(getGlobalServiceContext())->enabled()) {
return ShardingState::get(getGlobalServiceContext())->getCollectionMetadata(nsString.ns());
}
return nullptr;
}
} // namespace
UpdateLifecycleImpl::UpdateLifecycleImpl(const NamespaceString& nsStr) : _nsString(nsStr) {}
void UpdateLifecycleImpl::setCollection(Collection* collection) {
_collection = collection;
}
bool UpdateLifecycleImpl::canContinue() const {
// Collection needs to exist to continue
return _collection;
}
const UpdateIndexData* UpdateLifecycleImpl::getIndexKeys(OperationContext* opCtx) const {
if (_collection)
return &_collection->infoCache()->getIndexKeys(opCtx);
return NULL;
}
const std::vector<FieldRef*>* UpdateLifecycleImpl::getImmutableFields() const {
std::shared_ptr<CollectionMetadata> metadata = getMetadata(_nsString);
if (metadata) {
const std::vector<FieldRef*>& fields = metadata->getKeyPatternFields();
// Return shard-keys as immutable for the update system.
return &fields;
}
return NULL;
}
} // namespace mongo
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