| /** |
| * 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 backtype.storm.command; |
| |
| import backtype.storm.generated.RebalanceOptions; |
| import backtype.storm.utils.NimbusClient; |
| import backtype.storm.utils.Utils; |
| |
| import java.util.Map; |
| |
| /** |
| * Active topology |
| * |
| * @author longda |
| * |
| */ |
| public class rebalance { |
| static final String REASSIGN_FLAG = "-r"; |
| |
| /** |
| * @param args |
| */ |
| public static void main(String[] args) { |
| // TODO Auto-generated method stub |
| if (args == null || args.length == 0) { |
| printErrorInfo(); |
| return; |
| } |
| |
| int argsIndex = 0; |
| String topologyName = null; |
| |
| try { |
| RebalanceOptions options = new RebalanceOptions(); |
| options.set_reassign(false); |
| options.set_conf(null); |
| |
| if (args[argsIndex].equalsIgnoreCase(REASSIGN_FLAG)) { |
| options.set_reassign(true); |
| argsIndex++; |
| if (args.length <= argsIndex) { |
| // Topology name is not set. |
| printErrorInfo(); |
| return; |
| } else { |
| topologyName = args[argsIndex]; |
| } |
| } else { |
| topologyName = args[argsIndex]; |
| } |
| |
| argsIndex++; |
| if (args.length > argsIndex) { |
| for (int i = argsIndex; i < args.length; i++) { |
| String arg = args[i]; |
| if (arg.endsWith("yaml") || arg.endsWith("prop")) { |
| Map userConf = Utils.loadConf(arg); |
| String jsonConf = Utils.to_json(userConf); |
| options.set_conf(jsonConf); |
| } else { |
| try { |
| int delaySeconds = Integer.parseInt(args[1]); |
| options.set_wait_secs(delaySeconds); |
| } catch (NumberFormatException e) { |
| System.out.println("Unsupported argument found, arg=" + arg + ". Full args are " + args); |
| printErrorInfo(); |
| return; |
| } |
| } |
| } |
| } |
| |
| submitRebalance(topologyName, options); |
| |
| System.out.println("Successfully submit command rebalance " + topologyName + ", delaySecs=" + |
| options.get_wait_secs() + ", reassignFlag=" |
| + options.is_reassign() + ", newConfiguration=" + options.get_conf()); |
| } catch (Exception e) { |
| System.out.println(e.getMessage()); |
| e.printStackTrace(); |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private static void printErrorInfo() { |
| System.out.println("Error: Invalid parameters!"); |
| System.out.println("USAGE: jstorm rebalance [-r] TopologyName [DelayTime] [NewConfig]"); |
| } |
| |
| public static void submitRebalance(String topologyName, RebalanceOptions options) throws Exception { |
| submitRebalance(topologyName, options, null); |
| } |
| |
| public static void submitRebalance(String topologyName, RebalanceOptions options, Map conf) throws Exception { |
| Map stormConf = Utils.readStormConfig(); |
| if (conf != null) { |
| stormConf.putAll(conf); |
| } |
| |
| NimbusClient client = null; |
| try { |
| client = NimbusClient.getConfiguredClient(stormConf); |
| client.getClient().rebalance(topologyName, options); |
| } catch (Exception e) { |
| throw e; |
| } finally { |
| if (client != null) { |
| client.close(); |
| } |
| } |
| } |
| |
| } |