org.apache.storm.starter.bolt.PrinterBolt.java Source code

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Here is the source code for org.apache.storm.starter.bolt.PrinterBolt.java

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/**
 * 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.starter.bolt;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.apache.storm.topology.BasicOutputCollector;
import org.apache.storm.topology.OutputFieldsDeclarer;
import org.apache.storm.topology.base.BaseBasicBolt;
import org.apache.storm.tuple.Tuple;

import twitter4j.Status;

public class PrinterBolt extends BaseBasicBolt {

    int count = 1;

    @Override
    public void execute(Tuple tuple, BasicOutputCollector collector) {

        File file = new File("Tweet_List.txt");

        Status t = (Status) tuple.getValueByField("tweet");

        try {
            file.createNewFile();
            FileWriter writer = new FileWriter(file, true);
            writer.write(t.getText() + "\n");
            writer.flush();
            writer.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        //System.out.println(tuple);
        //System.out.println(count++ + " " + t.getText());
    }

    @Override
    public void declareOutputFields(OutputFieldsDeclarer ofd) {
    }

}