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OptaPlanner solves planning problems. This lightweight, embeddable planning engine implements powerful and scalable algorithms to optimize business resource scheduling and planning. This module contains the examples which demonstrate how to use it in a normal Java application.
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/*
 * Copyright 2020 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.optaplanner.examples.vehiclerouting.domain;

import java.text.NumberFormat;
import java.util.List;

import org.optaplanner.core.api.domain.solution.PlanningEntityCollectionProperty;
import org.optaplanner.core.api.domain.solution.PlanningScore;
import org.optaplanner.core.api.domain.solution.PlanningSolution;
import org.optaplanner.core.api.domain.solution.ProblemFactCollectionProperty;
import org.optaplanner.core.api.domain.valuerange.ValueRangeProvider;
import org.optaplanner.core.api.score.buildin.hardsoftlong.HardSoftLongScore;
import org.optaplanner.examples.common.domain.AbstractPersistable;
import org.optaplanner.examples.vehiclerouting.domain.location.DistanceType;
import org.optaplanner.examples.vehiclerouting.domain.location.Location;
import org.optaplanner.examples.vehiclerouting.domain.timewindowed.TimeWindowedVehicleRoutingSolution;
import org.optaplanner.persistence.xstream.api.score.buildin.hardsoftlong.HardSoftLongScoreXStreamConverter;

import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamConverter;
import com.thoughtworks.xstream.annotations.XStreamInclude;

@PlanningSolution
@XStreamAlias("VrpVehicleRoutingSolution")
@XStreamInclude({
        TimeWindowedVehicleRoutingSolution.class
})
public class VehicleRoutingSolution extends AbstractPersistable {

    protected String name;
    protected DistanceType distanceType;
    protected String distanceUnitOfMeasurement;
    protected List locationList;
    protected List depotList;
    protected List vehicleList;

    protected List customerList;

    @XStreamConverter(HardSoftLongScoreXStreamConverter.class)
    protected HardSoftLongScore score;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public DistanceType getDistanceType() {
        return distanceType;
    }

    public void setDistanceType(DistanceType distanceType) {
        this.distanceType = distanceType;
    }

    public String getDistanceUnitOfMeasurement() {
        return distanceUnitOfMeasurement;
    }

    public void setDistanceUnitOfMeasurement(String distanceUnitOfMeasurement) {
        this.distanceUnitOfMeasurement = distanceUnitOfMeasurement;
    }

    @ProblemFactCollectionProperty
    public List getLocationList() {
        return locationList;
    }

    public void setLocationList(List locationList) {
        this.locationList = locationList;
    }

    @ProblemFactCollectionProperty
    public List getDepotList() {
        return depotList;
    }

    public void setDepotList(List depotList) {
        this.depotList = depotList;
    }

    @PlanningEntityCollectionProperty
    @ValueRangeProvider(id = "vehicleRange")
    public List getVehicleList() {
        return vehicleList;
    }

    public void setVehicleList(List vehicleList) {
        this.vehicleList = vehicleList;
    }

    @PlanningEntityCollectionProperty
    @ValueRangeProvider(id = "customerRange")
    public List getCustomerList() {
        return customerList;
    }

    public void setCustomerList(List customerList) {
        this.customerList = customerList;
    }

    @PlanningScore
    public HardSoftLongScore getScore() {
        return score;
    }

    public void setScore(HardSoftLongScore score) {
        this.score = score;
    }

    // ************************************************************************
    // Complex methods
    // ************************************************************************

    public String getDistanceString(NumberFormat numberFormat) {
        if (score == null) {
            return null;
        }
        long distance = -score.getSoftScore();
        if (distanceUnitOfMeasurement == null) {
            return numberFormat.format(((double) distance) / 1000.0);
        }
        switch (distanceUnitOfMeasurement) {
            case "sec": // TODO why are the values 1000 larger?
                long hours = distance / 3600000L;
                long minutes = distance % 3600000L / 60000L;
                long seconds = distance % 60000L / 1000L;
                long milliseconds = distance % 1000L;
                return hours + "h " + minutes + "m " + seconds + "s " + milliseconds + "ms";
            case "km": { // TODO why are the values 1000 larger?
                long km = distance / 1000L;
                long meter = distance % 1000L;
                return km + "km " + meter + "m";
            }
            case "meter": {
                long km = distance / 1000L;
                long meter = distance % 1000L;
                return km + "km " + meter + "m";
            }
            default:
                return numberFormat.format(((double) distance) / 1000.0) + " " + distanceUnitOfMeasurement;
        }
    }

}