package cn.hadoop.hdfs.storm;

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

import redis.clients.jedis.Jedis;
import cn.hadoop.hdfs.util.JedisFactory;
import backtype.storm.task.OutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.IRichBolt;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.tuple.Tuple;

/**
 * @Date Jun 10, 2015
 *
 * @Author dengjie
 *
 * @Note Calc WordsCount eg.
 */
public class WordsCounterBlots implements IRichBolt {

    /**
     * 
     */
    private static final long serialVersionUID = -619395076356762569L;

    OutputCollector collector;
    Map<String, Integer> counter;

    @SuppressWarnings("rawtypes")
    public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
        this.collector = collector;
        this.counter = new HashMap<String, Integer>();
    }

    public void execute(Tuple input) {
        String word = input.getString(0);
        Integer integer = this.counter.get(word);
        if (integer != null) {
            integer += 1;
            this.counter.put(word, integer);
        } else {
            this.counter.put(word, 1);
        }
        for (Entry<String, Integer> entry : this.counter.entrySet()) {
           // write result to redis
            Jedis jedis = JedisFactory.getJedisInstance("real-time");
            jedis.set(entry.getKey(), entry.getValue().toString());
            
            // write result to mysql
            // ...
        }
this.collector.ack(input);
    }

    public void cleanup() {
        // TODO Auto-generated method stub
        
    }

    public void declareOutputFields(OutputFieldsDeclarer declarer) {
        // TODO Auto-generated method stub

    }

    public Map<String, Object> getComponentConfiguration() {
        // TODO Auto-generated method stub
        return null;
    }

}