/**
 * 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.alipay.dw.jstorm.example.multilanguage;

import java.util.HashMap;
import java.util.Map;

import org.apache.storm.starter.spout.RandomSentenceSpout;

import com.alibaba.starter.utils.Assert;
import com.alibaba.starter.utils.JStormHelper;

import backtype.storm.Config;
import backtype.storm.LocalCluster;
import backtype.storm.StormSubmitter;
import backtype.storm.task.ShellBolt;
import backtype.storm.testing.MemoryTransactionalSpout;
import backtype.storm.topology.BasicOutputCollector;
import backtype.storm.topology.IRichBolt;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.TopologyBuilder;
import backtype.storm.topology.base.BaseBasicBolt;
import backtype.storm.transactional.TransactionalTopologyBuilder;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Tuple;
import backtype.storm.tuple.Values;

/**
 * This topology demonstrates Storm's stream groupings and multilang
 * capabilities.
 */
public class WordCountTopology {
    public static class SplitSentence extends ShellBolt implements IRichBolt {
        
        public SplitSentence() {
            super("python", "splitsentence.py");
        }
        
        @Override
        public void declareOutputFields(OutputFieldsDeclarer declarer) {
            declarer.declare(new Fields("word"));
        }
        
        @Override
        public Map<String, Object> getComponentConfiguration() {
            return null;
        }
    }
    
    public static class WordCount extends BaseBasicBolt {
        Map<String, Integer> counts = new HashMap<String, Integer>();
        
        @Override
        public void execute(Tuple tuple, BasicOutputCollector collector) {
            String word = tuple.getString(0);
            Integer count = counts.get(word);
            if (count == null)
                count = 0;
            count++;
            counts.put(word, count);
            collector.emit(new Values(word, count));
        }
        
        @Override
        public void declareOutputFields(OutputFieldsDeclarer declarer) {
            declarer.declare(new Fields("word", "count"));
        }
    }
    
    
    static boolean isLocal = true;
    static Config  conf    = JStormHelper.getConfig(null);
    
    public static void test() {
        TopologyBuilder builder = new TopologyBuilder();
        
        builder.setSpout("spout", new RandomSentenceSpout(), 5);
        
        builder.setBolt("split", new SplitSentence(), 8).shuffleGrouping("spout");
        builder.setBolt("count", new WordCount(), 12).fieldsGrouping("split", new Fields("word"));
        
        Config conf = new Config();
        conf.setDebug(true);
        
        String[] className = Thread.currentThread().getStackTrace()[1].getClassName().split("\\.");
        String topologyName = className[className.length - 1];
        
        try {
            JStormHelper.runTopology(builder.createTopology(), topologyName, conf, 60,
                    new JStormHelper.CheckAckedFail(conf), isLocal);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            Assert.fail("Failed");
        }
    }
    
    public static void main(String[] args) throws Exception {
        isLocal = false;
        test();
    }
}