| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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. |
| |
| #pragma once |
| |
| #include <unordered_map> |
| |
| #include "common/logging.h" |
| #include "gen-cpp/Frontend_types.h" |
| #include "gen-cpp/common.pb.h" |
| |
| namespace impala { |
| |
| class QuerySchedulePB; |
| class TQueryExecRequest; |
| class TQueryOptions; |
| class TPlanFragment; |
| |
| /// This class is a wrapper around references to the parameters that the Coordinator needs |
| /// for query execution - the TExecRequest which is owned by the QueryDriver and the |
| /// QuerySchedulePB which is owned by the ClientRequestState - along with some convenience |
| /// functions for accessing them. |
| class QueryExecParams { |
| public: |
| QueryExecParams( |
| const TExecRequest& exec_request, const QuerySchedulePB& query_schedule); |
| |
| const QuerySchedulePB& query_schedule() const { return query_schedule_; } |
| |
| const UniqueIdPB& query_id() const { return query_id_; } |
| const TQueryExecRequest& query_exec_request() const { |
| return exec_request_.query_exec_request; |
| } |
| const TQueryOptions& query_options() const { return exec_request_.query_options; } |
| |
| int32_t num_fragments() const { return fragments_.size(); } |
| |
| const std::vector<const TPlanFragment*>& GetFragments() const { return fragments_; } |
| |
| /// Return the coordinator fragment, or nullptr if there isn't one. |
| const TPlanFragment* GetCoordFragment() const; |
| |
| /// Return the total number of instances across all fragments. |
| int GetNumFragmentInstances() const; |
| |
| private: |
| friend class CoordinatorBackendStateTest; |
| |
| UniqueIdPB query_id_; |
| |
| /// Owned by the QueryDriver and has query lifetime. |
| const TExecRequest& exec_request_; |
| |
| /// List of pointers to fragments in 'exec_request_', indexed by fragment idx. |
| std::vector<const TPlanFragment*> fragments_; |
| |
| /// Owned by the ClientRwquestState and has query lifetime. |
| const QuerySchedulePB& query_schedule_; |
| |
| /// Constructor used for testing only. Does not initialize 'fragments_'. |
| QueryExecParams(const UniqueIdPB& query_id, const TExecRequest& exec_request, |
| const QuerySchedulePB& query_schedule); |
| }; |
| } // namespace impala |