| /* |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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. |
| */ |
| |
| package org.apache.hadoop.hdds.scm.ha; |
| |
| import org.apache.hadoop.hdds.protocol.proto.SCMRatisProtocol.RequestType; |
| import org.apache.hadoop.hdds.scm.AddSCMRequest; |
| import org.apache.ratis.grpc.GrpcTlsConfig; |
| import org.apache.ratis.protocol.exceptions.NotLeaderException; |
| import org.apache.ratis.server.RaftServer; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.TimeoutException; |
| |
| /** |
| * TODO. |
| */ |
| public interface SCMRatisServer { |
| |
| void start() throws IOException; |
| |
| void registerStateMachineHandler(RequestType handlerType, Object handler); |
| |
| SCMRatisResponse submitRequest(SCMRatisRequest request) |
| throws IOException, ExecutionException, InterruptedException, |
| TimeoutException; |
| |
| void stop() throws IOException; |
| |
| RaftServer.Division getDivision(); |
| |
| /** |
| * Returns roles of ratis peers. |
| */ |
| List<String> getRatisRoles() throws IOException; |
| |
| /** |
| * Returns NotLeaderException with useful info. |
| */ |
| NotLeaderException triggerNotLeaderException(); |
| |
| boolean addSCM(AddSCMRequest request) throws IOException; |
| |
| SCMStateMachine getSCMStateMachine(); |
| |
| GrpcTlsConfig getGrpcTlsConfig(); |
| |
| } |