content: /**
   * 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 com.alibaba.aloha.meta.example;
  
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.InputStream;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Properties;
  
  import org.apache.log4j.Logger;
  import org.yaml.snakeyaml.Yaml;
  
  import backtype.storm.Config;
  import backtype.storm.LocalCluster;
  import backtype.storm.StormSubmitter;
  import backtype.storm.topology.TopologyBuilder;
  
  import com.alibaba.aloha.meta.MetaSpout;
  import com.alibaba.jstorm.utils.JStormUtils;
  
  /**
   * MonitorTopology
   * 
   * @author longda/zhiyuan.ls
   * 
   */
  public class TestTopology {
  
  	private static Logger LOG = Logger.getLogger(TestTopology.class);
  
  	public static String WRITER_COMPONENT = "writer";
  
  	public static void main(String[] args) throws Exception {
  		if (args.length == 0) {
  			System.err.println("Please input configuration file");
  			System.exit(-1);
  		}
  
  		LoadConf(args[0]);
  
  		TopologyBuilder builder = setupBuilder();
  
  		submitTopology(builder);
  
  	}
  
  	private static TopologyBuilder setupBuilder() throws Exception {
  		TopologyBuilder builder = new TopologyBuilder();
  
  		int writerParallel = JStormUtils.parseInt(
  				conf.get("topology.writer.parallel"), 1);
  
  		int spoutParallel = JStormUtils.parseInt(
  				conf.get("topology.spout.parallel"), 1);
  
  		builder.setSpout("MetaSpout", new MetaSpout(), spoutParallel);
  
  		builder.setBolt(WRITER_COMPONENT, new WriterBolt(), writerParallel)
  				.shuffleGrouping("MetaSpout");
  
  		return builder;
  	}
  
  	private static void submitTopology(TopologyBuilder builder) {
  		try {
  			if (local_mode(conf)) {
  
  				LocalCluster cluster = new LocalCluster();
  
  				cluster.submitTopology(
  						String.valueOf(conf.get("topology.name")), conf,
  						builder.createTopology());
  
  				Thread.sleep(200000);
  
  				cluster.shutdown();
  			} else {
  				StormSubmitter.submitTopology(
  						String.valueOf(conf.get("topology.name")), conf,
  						builder.createTopology());
  			}
  
  		} catch (Exception e) {
  			LOG.error(e.getMessage(), e.getCause());
  		}
  	}
  
  	private static Map conf = new HashMap<Object, Object>();
  
  	private static void LoadProperty(String prop) {
  		Properties properties = new Properties();
  
  		try {
  			InputStream stream = new FileInputStream(prop);
  			properties.load(stream);
  		} catch (FileNotFoundException e) {
  			System.out.println("No such file " + prop);
  		} catch (Exception e1) {
  			e1.printStackTrace();
  
  			return;
  		}
  
  		conf.putAll(properties);
  	}
  
  	private static void LoadYaml(String confPath) {
  
  		Yaml yaml = new Yaml();
  
  		try {
  			InputStream stream = new FileInputStream(confPath);
  
  			conf = (Map) yaml.load(stream);
  			if (conf == null || conf.isEmpty() == true) {
  				throw new RuntimeException("Failed to read config file");
  			}
  
  		} catch (FileNotFoundException e) {
  			System.out.println("No such file " + confPath);
  			throw new RuntimeException("No config file");
  		} catch (Exception e1) {
  			e1.printStackTrace();
  			throw new RuntimeException("Failed to read config file");
  		}
  
  		return;
  	}
  
  	private static void LoadConf(String arg) {
  		if (arg.endsWith("yaml")) {
  			LoadYaml(arg);
  		} else {
  			LoadProperty(arg);
  		}
  	}
  
  	public static boolean local_mode(Map conf) {
  		String mode = (String) conf.get(Config.STORM_CLUSTER_MODE);
  		if (mode != null) {
  			if (mode.equals("local")) {
  				return true;
  			}
  		}
  
  		return false;
  
  	}
  
  }
  