NetworkChangeEvent.java

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/* *********************************************************************** *
 * project: org.matsim.*
 * NetworkChangeEvent.java
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2007 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */

package org.matsim.core.network;

import org.matsim.api.core.v01.network.Link;
import org.matsim.core.api.internal.MatsimComparator;

import java.io.Serializable;
import java.util.*;

public final class NetworkChangeEvent {
    
    public enum ChangeType {
        ABSOLUTE_IN_SI_UNITS, FACTOR, OFFSET_IN_SI_UNITS
    }

    public static class ChangeValue {

        private final ChangeType type;

        private final double value;

        public ChangeValue(ChangeType type, double value) {
            this.type = type;
            this.value = value;
        }

        public ChangeType getType() {
            return type;
        }

        public double getValue() {
            return value;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;

            ChangeValue that = (ChangeValue) o;

            if (Double.compare(that.value, value) != 0) return false;
            return type == that.type;
        }

        @Override
        public int hashCode() {
            int result;
            long temp;
            result = type.hashCode();
            temp = Double.doubleToLongBits(value);
            result = 31 * result + (int) (temp ^ (temp >>> 32));
            return result;
        }
    }

    // ========================================================================
    // private members
    // ========================================================================

    private final List<Link> links = new ArrayList<>();
    
    private final List<Link> unmodifiableLinks = Collections.unmodifiableList(links);

    private final double startTime;

    private ChangeValue flowCapacityChange = null;

    private ChangeValue freespeedChange = null;

    private ChangeValue lanesChange = null;

    // ========================================================================
    // constructor
    // ========================================================================

    public NetworkChangeEvent(double startTime) {
        this.startTime = startTime;
    }

    // ========================================================================
    // accessors
    // ========================================================================

    public double getStartTime() {
        return startTime;
    }


    public void addLink(Link link) {
        links.add(link);
    }
    
    public void addLinks(Collection<? extends Link> links1) {
        this.links.addAll(links1);
    }
    
    public void removeLink(Link link) {
        links.remove(link);
    }
    
    public Collection<Link> getLinks() {
        return unmodifiableLinks;
    }

    public ChangeValue getFlowCapacityChange() {
        return flowCapacityChange;
    }

    public void setFlowCapacityChange(ChangeValue flowCapacityChange) {
        this.flowCapacityChange = flowCapacityChange;
    }

    public ChangeValue getFreespeedChange() {
        return freespeedChange;
    }

    public void setFreespeedChange(ChangeValue freespeedChange) {
        this.freespeedChange = freespeedChange;
    }

    public ChangeValue getLanesChange() {
        return lanesChange;
    }

    public void setLanesChange(ChangeValue lanesChange) {
        this.lanesChange = lanesChange;
    }

    public static class StartTimeComparator implements Comparator<NetworkChangeEvent>, Serializable, MatsimComparator {
        private static final long serialVersionUID = 1L;
        @Override
        public int compare(NetworkChangeEvent o1, NetworkChangeEvent o2) {
            return Double.compare(o1.getStartTime(), o2.getStartTime());
        }
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        NetworkChangeEvent that = (NetworkChangeEvent) o;

        if (Double.compare(that.startTime, startTime) != 0) return false;
        if (!links.equals(that.links)) return false;
        if (flowCapacityChange != null ? !flowCapacityChange.equals(that.flowCapacityChange) : that.flowCapacityChange != null)
            return false;
        if (freespeedChange != null ? !freespeedChange.equals(that.freespeedChange) : that.freespeedChange != null)
            return false;
        return lanesChange != null ? lanesChange.equals(that.lanesChange) : that.lanesChange == null;
    }

    @Override
    public int hashCode() {
        int result;
        long temp;
        result = links.hashCode();
        temp = Double.doubleToLongBits(startTime);
        result = 31 * result + (int) (temp ^ (temp >>> 32));
        result = 31 * result + (flowCapacityChange != null ? flowCapacityChange.hashCode() : 0);
        result = 31 * result + (freespeedChange != null ? freespeedChange.hashCode() : 0);
        result = 31 * result + (lanesChange != null ? lanesChange.hashCode() : 0);
        return result;
    }
}