| /** |
| * Copyright 2011-2015 Quickstep Technologies LLC. |
| * Copyright 2015-2016 Pivotal Software, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| **/ |
| |
| #include "relational_operators/DropTableOperator.hpp" |
| |
| #include <utility> |
| #include <vector> |
| |
| #include "catalog/CatalogDatabase.hpp" |
| #include "catalog/CatalogRelation.hpp" |
| #include "catalog/CatalogTypedefs.hpp" |
| #include "query_execution/WorkOrderProtosContainer.hpp" |
| #include "query_execution/WorkOrdersContainer.hpp" |
| #include "relational_operators/WorkOrder.pb.h" |
| #include "storage/StorageBlockInfo.hpp" |
| #include "storage/StorageManager.hpp" |
| |
| #include "tmb/id_typedefs.h" |
| |
| namespace quickstep { |
| |
| bool DropTableOperator::getAllWorkOrders( |
| WorkOrdersContainer *container, |
| QueryContext *query_context, |
| StorageManager *storage_manager, |
| const tmb::client_id foreman_client_id, |
| const tmb::client_id agent_client_id, |
| tmb::MessageBus *bus) { |
| if (blocking_dependencies_met_ && !work_generated_) { |
| work_generated_ = true; |
| |
| std::vector<block_id> relation_blocks(relation_.getBlocksSnapshot()); |
| |
| // DropTableWorkOrder only drops blocks, if any. |
| container->addNormalWorkOrder( |
| new DropTableWorkOrder(std::move(relation_blocks), storage_manager), |
| op_index_); |
| |
| database_->setStatus(CatalogDatabase::Status::kPendingBlockDeletions); |
| } |
| |
| return work_generated_; |
| } |
| |
| bool DropTableOperator::getAllWorkOrderProtos(WorkOrderProtosContainer *container) { |
| if (blocking_dependencies_met_ && !work_generated_) { |
| work_generated_ = true; |
| |
| serialization::WorkOrder *proto = new serialization::WorkOrder; |
| proto->set_work_order_type(serialization::DROP_TABLE); |
| |
| std::vector<block_id> relation_blocks(relation_.getBlocksSnapshot()); |
| for (const block_id relation_block : relation_blocks) { |
| proto->AddExtension(serialization::DropTableWorkOrder::block_ids, relation_block); |
| } |
| |
| container->addWorkOrderProto(proto, op_index_); |
| |
| database_->setStatus(CatalogDatabase::Status::kPendingBlockDeletions); |
| } |
| |
| return work_generated_; |
| } |
| |
| void DropTableOperator::updateCatalogOnCompletion() { |
| const relation_id rel_id = relation_.getID(); |
| if (only_drop_blocks_) { |
| database_->getRelationByIdMutable(rel_id)->clearBlocks(); |
| } else { |
| database_->dropRelationById(rel_id); |
| } |
| |
| database_->setStatus(CatalogDatabase::Status::kConsistent); |
| } |
| |
| |
| void DropTableWorkOrder::execute() { |
| for (const block_id block : blocks_) { |
| storage_manager_->deleteBlockOrBlobFile(block); |
| } |
| } |
| |
| } // namespace quickstep |