/*
* #!
* %
* Copyright (C) 2014 - 2016 Humboldt-Universität zu Berlin
* %
* 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 de.hub.cs.dbis.lrb.queries;
import java.io.IOException;
import joptsimple.ArgumentAcceptingOptionSpec;
import joptsimple.OptionSet;
import joptsimple.OptionSpec;
import backtype.storm.generated.AlreadyAliveException;
import backtype.storm.generated.InvalidTopologyException;
import de.hub.cs.dbis.aeolus.monitoring.MonitoringTopoloyBuilder;
import de.hub.cs.dbis.aeolus.sinks.FileFlushSinkBolt;
import de.hub.cs.dbis.aeolus.utils.TimestampMerger;
import de.hub.cs.dbis.lrb.operators.AverageSpeedBolt;
import de.hub.cs.dbis.lrb.queries.utils.TopologyControl;
import de.hub.cs.dbis.lrb.types.internal.AvgVehicleSpeedTuple;
import de.hub.cs.dbis.lrb.types.util.SegmentIdentifier;
/**
* {@link AverageSpeedSubquery} assembles the "Average Speed" subquery that computes the average speed per minute within
* each segment (ie, x-way, segment, and direction).
*
* * @author mjsax
*/
public class AverageSpeedSubquery extends AbstractQuery {
private final AverageVehicleSpeedSubquery avgVehicleSpdSubquery;
private OptionSpec<String> output;
public AverageSpeedSubquery() {
this(true);
}
public AverageSpeedSubquery(boolean required) {
this.avgVehicleSpdSubquery = new AverageVehicleSpeedSubquery(false);
this.output = parser.accepts("avg-spd-output", "Bolt local path to write average speeds.").withRequiredArg()
.describedAs("file").ofType(String.class);
if(required) {
this.output = ((ArgumentAcceptingOptionSpec<String>)this.output).required();
}
}
@Override
protected void addBolts(MonitoringTopoloyBuilder builder, OptionSet options) {
this.avgVehicleSpdSubquery.addBolts(builder, options);
builder
.setBolt(TopologyControl.AVERAGE_SPEED_BOLT_NAME,
new TimestampMerger(new AverageSpeedBolt(), AvgVehicleSpeedTuple.MINUTE_IDX),
OperatorParallelism.get(TopologyControl.AVERAGE_SPEED_BOLT_NAME))
.fieldsGrouping(TopologyControl.AVERAGE_VEHICLE_SPEED_BOLT_NAME, SegmentIdentifier.getSchema())
.allGrouping(TopologyControl.AVERAGE_VEHICLE_SPEED_BOLT_NAME, TimestampMerger.FLUSH_STREAM_ID);
if(options.has(this.output)) {
builder.setSink("avg-speed-sink", new FileFlushSinkBolt(options.valueOf(this.output)))
.localOrShuffleGrouping(TopologyControl.AVERAGE_SPEED_BOLT_NAME);
}
}
public static void main(String[] args) throws IOException, InvalidTopologyException, AlreadyAliveException {
System.exit(new AverageSpeedSubquery().parseArgumentsAndRun(args));
}
}