SOEFinalAlertBolt.java Source code

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Here is the source code for SOEFinalAlertBolt.java

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/*
 * Copyright (c) 2013 Yahoo! Inc. All Rights Reserved.
 *
 * Licensed 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. See accompanying LICENSE file.
 */

import backtype.storm.task.OutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseRichBolt;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Tuple;
import org.joda.time.DateTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.util.Map;

public class SOEFinalAlertBolt extends BaseRichBolt {
    /**
     * 
     */
    private static final long serialVersionUID = -7418734359875255034L;
    private static final Logger LOG = LoggerFactory.getLogger(SOEFinalAlertBolt.class);
    private OutputCollector _collector;

    private final String PythonLOCATION = "/home/pi/SOE/stormData";
    private final String PythonFILE1 = "alert.py";
    private final String PythonFILE2 = "reset.py";
    private String nodeID;

    public SOEFinalAlertBolt() {
        //Empty
    }

    public void prepare(Map conf, TopologyContext context, OutputCollector collector) {
        _collector = collector;
        nodeID = context.getThisWorkerPort().toString();

        //    context.addTaskHook(new HookFinalBolt());

        //    File file = new File("");
        //    LOG.info("!!~~~~~~~~~~~~~~!!");
        //    LOG.info(file.getAbsolutePath());
        //    LOG.info("!!~~~~~~~~~~~~~~!!");
    }

    public void execute(Tuple tuple) {

        String message = tuple.getStringByField("message");
        long timeStamp = tuple.getLongByField("timeStamp");

        LOG.info("!!Something Happened in " + nodeID);
        LOG.info("!!At : " + new DateTime(timeStamp).toString());
        LOG.info("!!Current Time : " + DateTime.now());

        try {
            ProcessBuilder builder = new ProcessBuilder("python", PythonFILE1);
            builder.directory(new File(PythonLOCATION));
            Process process = builder.start();
            //      process.waitFor();

            //      builder = new ProcessBuilder("python", PythonFILE2);
            //      builder.directory(new File(PythonLOCATION));
            //      process = builder.start();
            //      process.waitFor();

        } catch (Exception e) {
            LOG.info("[Final Alert]\n" + e.getMessage());
        }

        _collector.ack(tuple);
    }

    @Override
    public void cleanup() {
    }

    public void declareOutputFields(OutputFieldsDeclarer declarer) {
        //declarer.declare(new Fields("message", "fieldValue", "timeStamp"));
    }
}