com.github.rinde.datgen.pdptw.ScenarioCreator.java Source code

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Here is the source code for com.github.rinde.datgen.pdptw.ScenarioCreator.java

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/*
 * Copyright (C) 2015 Rinde van Lon, iMinds-DistriNet, KU Leuven
 *
 * 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.github.rinde.datgen.pdptw;

import java.util.concurrent.Callable;

import javax.annotation.Nullable;

import org.apache.commons.math3.random.MersenneTwister;
import org.apache.commons.math3.random.RandomGenerator;
import org.apache.commons.math3.stat.descriptive.StatisticalSummary;

import com.github.rinde.datgen.pdptw.DatasetGenerator.IdSeed;
import com.github.rinde.rinsim.pdptw.common.AddParcelEvent;
import com.github.rinde.rinsim.scenario.Scenario;
import com.github.rinde.rinsim.scenario.generator.ScenarioGenerator;
import com.github.rinde.rinsim.scenario.measure.Metrics;
import com.google.auto.value.AutoValue;

@AutoValue
abstract class ScenarioCreator implements Callable<GeneratedScenario> {

    static final double URGENCY_THRESHOLD = 0.01;

    public abstract long getId();

    public abstract long getSeed();

    public abstract GeneratorSettings getSettings();

    public abstract ScenarioGenerator getGenerator();

    @Nullable
    @Override
    public GeneratedScenario call() throws Exception {
        final RandomGenerator rng = new MersenneTwister(getSeed());
        final Scenario scen = getGenerator().generate(rng, Long.toString(getId()));

        Metrics.checkTimeWindowStrictness(scen);

        // check that urgency matches expected urgency
        final StatisticalSummary urgency = Metrics.measureUrgency(scen);
        final long expectedUrgency = getSettings().getUrgency();
        if (!(Math.abs(urgency.getMean() - expectedUrgency) < URGENCY_THRESHOLD
                && urgency.getStandardDeviation() < URGENCY_THRESHOLD)) {
            System.out.println("Urgency too strict?");
            return null;
        }

        // check num orders
        final int numParcels = Metrics.getEventTypeCounts(scen).count(AddParcelEvent.class);
        if (numParcels != getSettings().getNumOrders()) {
            System.out.println("Parcels wrong number!");
            return null;
        }

        // check if dynamism fits in a bin
        final double dynamism = Metrics.measureDynamism(scen, getSettings().getOfficeHours());
        @Nullable
        final Double dynamismBin = getSettings().getDynamismRangeCenters().get(dynamism);
        if (dynamismBin == null) {
            System.out.println("Dynamism " + dynamism + " is too strict");
            return null;
        }

        return GeneratedScenario.create(scen, getSettings(), getId(), getSeed(), dynamismBin, dynamism);
    }

    static ScenarioCreator create(IdSeed is, GeneratorSettings set, ScenarioGenerator gen) {
        return new AutoValue_ScenarioCreator(is.getId(), is.getSeed(), set, gen);
    }
}