| /** |
| * 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.storm; |
| |
| import java.util.Map; |
| |
| import org.apache.heron.simulator.Simulator; |
| import org.apache.storm.generated.AlreadyAliveException; |
| import org.apache.storm.generated.InvalidTopologyException; |
| import org.apache.storm.generated.NotAliveException; |
| import org.apache.storm.generated.StormTopology; |
| import org.apache.storm.utils.ConfigUtils; |
| |
| @SuppressWarnings("rawtypes") |
| public class LocalCluster implements ILocalCluster { |
| private final Simulator simulator; |
| private String topologyName; |
| private Map conf; |
| private StormTopology topology; |
| |
| public LocalCluster() { |
| this.simulator = new Simulator(); |
| resetFields(); |
| } |
| |
| @Override |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| public void submitTopology(String topoName, |
| Map config, |
| StormTopology stormTopology) |
| throws AlreadyAliveException, InvalidTopologyException { |
| assertNotAlive(); |
| |
| this.topologyName = topoName; |
| this.conf = config; |
| this.topology = stormTopology; |
| |
| simulator.submitTopology(topoName, |
| ConfigUtils.translateConfig(config), |
| stormTopology.getStormTopology()); |
| } |
| |
| @Override |
| public void killTopology(String topoName) throws NotAliveException { |
| assertAlive(topoName); |
| simulator.killTopology(topoName); |
| resetFields(); |
| } |
| |
| @Override |
| public void activate(String topoName) throws NotAliveException { |
| assertAlive(topoName); |
| simulator.activate(topoName); |
| } |
| |
| @Override |
| public void deactivate(String topoName) throws NotAliveException { |
| assertAlive(topoName); |
| simulator.deactivate(topoName); |
| } |
| |
| @Override |
| public void shutdown() { |
| resetFields(); |
| simulator.shutdown(); |
| } |
| |
| @Override |
| public String getTopologyConf(String topoName) { |
| try { |
| assertAlive(topoName); |
| return this.topologyName; |
| } catch (NotAliveException ex) { |
| return null; |
| } |
| } |
| |
| @Override |
| public StormTopology getTopology(String topoName) { |
| try { |
| assertAlive(topoName); |
| return this.topology; |
| } catch (NotAliveException ex) { |
| return null; |
| } |
| } |
| |
| @Override |
| @SuppressWarnings("rawtypes") |
| public Map getState() { |
| throw new RuntimeException("Heron does not support LocalCluster yet..."); |
| } |
| |
| private void resetFields() { |
| this.topologyName = null; |
| this.topology = null; |
| this.conf = null; |
| } |
| |
| private void assertAlive(String topoName) throws NotAliveException { |
| if (this.topologyName == null || !this.topologyName.equals(topoName)) { |
| throw new NotAliveException(); |
| } |
| } |
| |
| private void assertNotAlive() throws AlreadyAliveException { |
| // only one topology is allowed to run. A topology is running if the topologyName is set. |
| if (this.topologyName != null) { |
| throw new AlreadyAliveException(); |
| } |
| } |
| } |