| /* |
| * 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. |
| */ |
| |
| package org.apache.ignite.internal.raft.server; |
| |
| import java.util.List; |
| import java.util.Set; |
| import org.apache.ignite.internal.manager.IgniteComponent; |
| import org.apache.ignite.network.ClusterService; |
| import org.apache.ignite.raft.client.Peer; |
| import org.apache.ignite.raft.client.service.RaftGroupListener; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.annotations.TestOnly; |
| |
| /** |
| * The RAFT protocol based replication server. Supports multiple RAFT groups. The server listens for client commands, submits them to a |
| * replicated log and calls {@link RaftGroupListener} {@code onRead} and {@code onWrite} methods after the command was committed to the |
| * log. |
| */ |
| public interface RaftServer extends IgniteComponent { |
| /** |
| * Returns cluster service. |
| */ |
| ClusterService clusterService(); |
| |
| /** |
| * Starts a raft group bound to this cluster node. |
| * |
| * @param groupId Group id. |
| * @param lsnr The listener. |
| * @param initialConf Inititial group configuration. |
| * @param groupOptions Options to apply to the group. |
| * @return {@code True} if a group was successfully started, {@code False} when the group with given name is already exists. |
| */ |
| boolean startRaftGroup(String groupId, RaftGroupListener lsnr, List<Peer> initialConf, RaftGroupOptions groupOptions); |
| |
| /** |
| * Starts a raft group bound to this cluster node. |
| * |
| * @param groupId Group id. |
| * @param evLsnr Listener for group membership and other events. |
| * @param lsnr Listener for state machine events. |
| * @param initialConf Inititial group configuration. |
| * @param groupOptions Options to apply to the group. |
| * @return {@code True} if a group was successfully started, {@code False} when the group with given name is already exists. |
| */ |
| boolean startRaftGroup( |
| String groupId, |
| RaftGroupEventsListener evLsnr, |
| RaftGroupListener lsnr, |
| List<Peer> initialConf, |
| RaftGroupOptions groupOptions |
| ); |
| |
| /** |
| * Synchronously stops a raft group if any. |
| * |
| * @param groupId Group id. |
| * @return {@code True} if a group was successfully stopped. |
| */ |
| boolean stopRaftGroup(String groupId); |
| |
| /** |
| * Returns a local peer. |
| * |
| * @param groupId Group id. |
| * @return Local peer or null if the group is not started. |
| */ |
| @Nullable Peer localPeer(String groupId); |
| |
| /** |
| * Returns a set of started partition groups. |
| * |
| * @return Started groups. |
| */ |
| @TestOnly |
| Set<String> startedGroups(); |
| } |