| // 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. |
| |
| #ifndef __MASTER_DETECTOR_STANDALONE_HPP__ |
| #define __MASTER_DETECTOR_STANDALONE_HPP__ |
| |
| #include <string> |
| |
| #include <mesos/mesos.hpp> |
| |
| #include <mesos/master/detector.hpp> |
| |
| #include <process/future.hpp> |
| |
| #include <stout/option.hpp> |
| |
| namespace mesos { |
| namespace master { |
| namespace detector { |
| |
| // Forward declarations. |
| class StandaloneMasterDetectorProcess; |
| |
| // A standalone implementation of the MasterDetector with no external |
| // discovery mechanism so the user has to manually appoint a leader |
| // to the detector for it to be detected. |
| class StandaloneMasterDetector : public MasterDetector |
| { |
| public: |
| StandaloneMasterDetector(); |
| // Use this constructor if the leader is known beforehand so it is |
| // unnecessary to call 'appoint()' separately. |
| explicit StandaloneMasterDetector(const MasterInfo& leader); |
| |
| // Same as above but takes UPID as the parameter. |
| explicit StandaloneMasterDetector(const process::UPID& leader); |
| |
| ~StandaloneMasterDetector() override; |
| |
| // Appoint the leading master so it can be *detected*. |
| void appoint(const Option<MasterInfo>& leader); |
| |
| // Same as above but takes 'UPID' as the parameter. |
| void appoint(const process::UPID& leader); |
| |
| process::Future<Option<MasterInfo>> detect( |
| const Option<MasterInfo>& previous = None()) override; |
| |
| private: |
| StandaloneMasterDetectorProcess* process; |
| }; |
| |
| } // namespace detector { |
| } // namespace master { |
| } // namespace mesos { |
| |
| #endif // __MASTER_DETECTOR_STANDALONE_HPP__ |