com.datatorrent.demos.mrmonitor.MRMonitoringApplication.java Source code

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Here is the source code for com.datatorrent.demos.mrmonitor.MRMonitoringApplication.java

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/*
 * Copyright (c) 2013 DataTorrent, 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.
 */
package com.datatorrent.demos.mrmonitor;

import java.net.URI;

import org.apache.commons.lang.StringUtils;
import org.apache.hadoop.conf.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.datatorrent.api.Context.OperatorContext;
import com.datatorrent.api.DAG;
import com.datatorrent.api.DAG.Locality;
import com.datatorrent.api.annotation.ApplicationAnnotation;
import com.datatorrent.api.StreamingApplication;
import com.datatorrent.lib.io.PubSubWebSocketInputOperator;
import com.datatorrent.lib.io.PubSubWebSocketOutputOperator;

/**
 * <p>
 * MRDebuggerApplication class.
 * </p>
 *
 * @since 0.3.4
 */
@ApplicationAnnotation(name = "MRMonitoringDemo")
public class MRMonitoringApplication implements StreamingApplication {

    private static final Logger logger = LoggerFactory.getLogger(MRMonitoringApplication.class);

    @Override
    public void populateDAG(DAG dag, Configuration conf) {
        String daemonAddress = dag.getValue(DAG.GATEWAY_CONNECT_ADDRESS);
        if (daemonAddress == null || StringUtils.isEmpty(daemonAddress)) {
            daemonAddress = "10.0.2.15:9790";
        }

        int numberOfPartitions = conf
                .getInt(MRMonitoringApplication.class.getName() + ".numberOfMonitoringOperators", 1);
        int maxNumberOfJobs = conf.getInt(MRMonitoringApplication.class.getName() + ".maxNumberOfJobsPerOperator",
                Constants.MAX_MAP_SIZE);
        // logger.info(" number of partitions {} ",numberOfPartitions);

        MRJobStatusOperator mrJobOperator = dag.addOperator("Monitoring-Operator", new MRJobStatusOperator());
        mrJobOperator.setMaxMapSize(maxNumberOfJobs);
        mrJobOperator.setSleepTime(200);
        dag.setAttribute(mrJobOperator, OperatorContext.INITIAL_PARTITION_COUNT, numberOfPartitions);
        dag.setAttribute(mrJobOperator, OperatorContext.APPLICATION_WINDOW_COUNT, 4);

        URI uri = URI.create("ws://" + daemonAddress + "/pubsub");
        logger.info("WebSocket with daemon at {}", daemonAddress);

        PubSubWebSocketInputOperator wsIn = dag.addOperator("Input-Query-Operator",
                new PubSubWebSocketInputOperator());
        wsIn.setUri(uri);
        wsIn.addTopic("contrib.summit.mrDebugger.mrDebuggerQuery");

        MapToMRObjectOperator convertorOper = dag.addOperator("Input-Query-Conversion-Operator",
                new MapToMRObjectOperator());
        dag.addStream("queryConversion", wsIn.outputPort, convertorOper.input)
                .setLocality(Locality.CONTAINER_LOCAL);

        dag.addStream("queryProcessing", convertorOper.output, mrJobOperator.input);

        /**
         * This is used to emit the meta data about the job
         */
        PubSubWebSocketOutputOperator<Object> wsOut = dag.addOperator("Job-Output-Operator",
                new PubSubWebSocketOutputOperator<Object>());
        wsOut.setUri(uri);
        wsOut.setTopic("contrib.summit.mrDebugger.jobResult");

        /**
         * This is used to emit the information of map tasks of the job
         */
        PubSubWebSocketOutputOperator<Object> wsMapOut = dag.addOperator("Map-Output-Operator",
                new PubSubWebSocketOutputOperator<Object>());
        wsMapOut.setUri(uri);
        wsMapOut.setTopic("contrib.summit.mrDebugger.mapResult");

        /**
         * This is used to emit the information of reduce tasks of the job
         */
        PubSubWebSocketOutputOperator<Object> wsReduceOut = dag.addOperator("Reduce-Output-Operator",
                new PubSubWebSocketOutputOperator<Object>());
        wsReduceOut.setUri(uri);
        wsReduceOut.setTopic("contrib.summit.mrDebugger.reduceResult");

        /**
         * This is used to emit the metric information of the job
         */
        PubSubWebSocketOutputOperator<Object> wsCounterOut = dag.addOperator("Counter-Output-Operator",
                new PubSubWebSocketOutputOperator<Object>());
        wsCounterOut.setUri(uri);
        wsCounterOut.setTopic("contrib.summit.mrDebugger.counterResult");

        dag.addStream("jobConsoledata", mrJobOperator.output, wsOut.input);
        dag.addStream("mapConsoledata", mrJobOperator.mapOutput, wsMapOut.input);
        dag.addStream("reduceConsoledata", mrJobOperator.reduceOutput, wsReduceOut.input);
        dag.addStream("counterConsoledata", mrJobOperator.counterOutput, wsCounterOut.input);

    }

}