| // 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 "kudu/gutil/macros.h" |
| |
| namespace kudu { |
| namespace client { |
| |
| class KuduClientBuilder; |
| class KuduReplica; |
| |
| namespace internal { |
| |
| // This is a class whose sole responsibility is to access tablet replica's |
| // visibility properties. Those are stored in private members of a few classes |
| // from the Kudu client API. It's not yet clear whether we want to allow access |
| // to those properties via the API, so it's safer to not expose them yet. |
| // |
| // Having this single class reduces cruft in friend class declarations in the |
| // client.h file. |
| class ReplicaController { |
| public: |
| // Control over tablet replica visibility: expose all or only voter replicas. |
| enum class Visibility { |
| ALL, // Expose all replicas: both of voter and non-voter type. |
| VOTERS, // Expose only replicas of voter type. |
| }; |
| |
| // Set the specified replica visibility option for the given builder. |
| static void SetVisibility(KuduClientBuilder* builder, Visibility visibility); |
| |
| static bool is_voter(const KuduReplica& replica); |
| |
| private: |
| ReplicaController(); |
| |
| DISALLOW_COPY_AND_ASSIGN(ReplicaController); |
| }; |
| |
| } // namespace internal |
| } // namespace client |
| } // namespace kudu |