| /* |
| * 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.raft.jraft.rpc.impl.cli; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.Executor; |
| import org.apache.ignite.raft.jraft.RaftMessagesFactory; |
| import org.apache.ignite.raft.jraft.entity.PeerId; |
| import org.apache.ignite.raft.jraft.error.RaftError; |
| import org.apache.ignite.raft.jraft.rpc.CliRequests.AddLearnersRequest; |
| import org.apache.ignite.raft.jraft.rpc.CliRequests.LearnersOpResponse; |
| import org.apache.ignite.raft.jraft.rpc.Message; |
| import org.apache.ignite.raft.jraft.rpc.RaftRpcFactory; |
| |
| /** |
| * AddLearners request processor. |
| * |
| * @author jiachun.fjc |
| */ |
| public class AddLearnersRequestProcessor extends BaseCliRequestProcessor<AddLearnersRequest> { |
| public AddLearnersRequestProcessor(Executor executor, RaftMessagesFactory msgFactory) { |
| super(executor, msgFactory); |
| } |
| |
| @Override |
| protected String getPeerId(final AddLearnersRequest request) { |
| return request.leaderId(); |
| } |
| |
| @Override |
| protected String getGroupId(final AddLearnersRequest request) { |
| return request.groupId(); |
| } |
| |
| @Override |
| protected Message processRequest0(final CliRequestContext ctx, final AddLearnersRequest request, |
| final IgniteCliRpcRequestClosure done) { |
| final List<PeerId> oldLearners = ctx.node.listLearners(); |
| final List<PeerId> addingLearners = new ArrayList<>(); |
| |
| for (final String peerStr : request.learnersList()) { |
| final PeerId peer = new PeerId(); |
| if (!peer.parse(peerStr)) { |
| return RaftRpcFactory.DEFAULT // |
| .newResponse(msgFactory(), RaftError.EINVAL, "Fail to parse peer id %s", peerStr); |
| } |
| addingLearners.add(peer); |
| } |
| |
| LOG.info("Receive AddLearnersRequest to {} from {}, adding {}.", ctx.node.getNodeId(), |
| done.getRpcCtx().getRemoteAddress(), addingLearners); |
| ctx.node.addLearners(addingLearners, status -> { |
| if (!status.isOk()) { |
| done.run(status); |
| } |
| else { |
| List<String> oldLearnersList = new ArrayList<>(); |
| List<String> newLearnersList = new ArrayList<>(); |
| |
| for (final PeerId peer : oldLearners) { |
| oldLearnersList.add(peer.toString()); |
| newLearnersList.add(peer.toString()); |
| } |
| |
| for (final PeerId peer : addingLearners) { |
| if (!oldLearners.contains(peer)) { |
| newLearnersList.add(peer.toString()); |
| } |
| } |
| |
| LearnersOpResponse req = msgFactory().learnersOpResponse() |
| .oldLearnersList(oldLearnersList) |
| .newLearnersList(newLearnersList) |
| .build(); |
| |
| done.sendResponse(req); |
| } |
| }); |
| |
| return null; |
| } |
| |
| @Override |
| public String interest() { |
| return AddLearnersRequest.class.getName(); |
| } |
| |
| } |