| /* |
| * 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.ambari.infra.solr.commands; |
| |
| import java.nio.charset.StandardCharsets; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.ambari.infra.solr.AmbariSolrCloudClient; |
| import org.apache.ambari.infra.solr.domain.AmbariSolrState; |
| import org.apache.solr.common.cloud.SolrZkClient; |
| import org.apache.solr.common.cloud.SolrZooKeeper; |
| import org.apache.zookeeper.CreateMode; |
| import org.codehaus.jackson.map.ObjectMapper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class UpdateStateFileZkCommand extends AbstractStateFileZkCommand { |
| |
| private static final Logger logger = LoggerFactory.getLogger(UpdateStateFileZkCommand.class); |
| |
| private String unsecureZnode; |
| |
| public UpdateStateFileZkCommand(int maxRetries, int interval, String unsecureZnode) { |
| super(maxRetries, interval); |
| this.unsecureZnode = unsecureZnode; |
| } |
| |
| @Override |
| protected AmbariSolrState executeZkCommand(AmbariSolrCloudClient client, SolrZkClient zkClient, SolrZooKeeper solrZooKeeper) throws Exception { |
| boolean secure = client.isSecure(); |
| String stateFile = String.format("%s/%s", unsecureZnode, AbstractStateFileZkCommand.STATE_FILE); |
| AmbariSolrState result; |
| if (secure) { |
| logger.info("Update state file in secure mode."); |
| updateStateFile(client, zkClient, AmbariSolrState.SECURE, stateFile); |
| result = AmbariSolrState.SECURE; |
| } else { |
| logger.info("Update state file in unsecure mode."); |
| updateStateFile(client, zkClient, AmbariSolrState.UNSECURE, stateFile); |
| result = AmbariSolrState.UNSECURE; |
| } |
| return result; |
| } |
| |
| private void updateStateFile(AmbariSolrCloudClient client, SolrZkClient zkClient, AmbariSolrState stateToUpdate, |
| String stateFile) throws Exception { |
| if (!zkClient.exists(stateFile, true)) { |
| logger.info("State file does not exits. Initializing it as '{}'", stateToUpdate); |
| zkClient.create(stateFile, createStateJson(stateToUpdate).getBytes(StandardCharsets.UTF_8), |
| CreateMode.PERSISTENT, true); |
| } else { |
| AmbariSolrState stateOnSecure = getStateFromJson(client, stateFile); |
| if (stateToUpdate.equals(stateOnSecure)) { |
| logger.info("State file is in '{}' mode. No update.", stateOnSecure); |
| } else { |
| logger.info("State file is in '{}' mode. Updating it to '{}'", stateOnSecure, stateToUpdate); |
| zkClient.setData(stateFile, createStateJson(stateToUpdate).getBytes(StandardCharsets.UTF_8), true); |
| } |
| } |
| } |
| |
| private String createStateJson(AmbariSolrState state) throws Exception { |
| Map<String, String> secStateMap = new HashMap<>(); |
| secStateMap.put(AbstractStateFileZkCommand.STATE_FIELD, state.toString()); |
| return new ObjectMapper().writeValueAsString(secStateMap); |
| } |
| } |