Enforce immutability via final and unmodifiableList.
This commit is contained in:
Holt59
@@ -1,92 +1,95 @@
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package org.insa.graph;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class Arc {
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// Destination node.
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private Node origin, destination;
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// Length of the road (in meters).
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private int length;
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// Road information.
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RoadInformation info;
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// Segments.
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ArrayList<Point> points;
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/**
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* @param dest
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* @param length
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* @param roadInformation
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* @param points
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*/
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public Arc(Node origin, Node dest, int length, RoadInformation roadInformation) {
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this.origin = origin;
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this.destination = dest;
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this.length = length;
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this.info = roadInformation;
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this.points = new ArrayList<Point>();
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origin.addSuccessor(this);
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}
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// Destination node.
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private final Node origin, destination;
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/**
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* @param dest
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* @param length
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* @param roadInformation
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* @param points
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*/
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public Arc(Node origin, Node dest, int length, RoadInformation roadInformation, ArrayList<Point> points) {
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this.origin = origin;
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this.destination = dest;
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this.length = length;
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this.info = roadInformation;
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this.points = points;
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origin.addSuccessor(this);
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}
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/**
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* @return Origin node of this arc.
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*/
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public Node getOrigin() {
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return origin;
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}
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/**
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* @return Destination node of this arc.
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*/
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public Node getDestination() {
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return destination;
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}
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// Length of the road (in meters).
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private final int length;
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/**
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* @return Length of this arc, in meters.
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*/
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public int getLength() {
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return length;
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}
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/**
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* @return Minimum time required to travel this arc, in seconds.
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*/
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public double getMinimumTravelTime() {
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return getLength() * 3600.0 / (info.getMaximumSpeed() * 1000.0);
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}
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// Road information.
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private final RoadInformation info;
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/**
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* @return Road information for this arc.
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*/
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public RoadInformation getInfo() {
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return info;
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}
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// Segments.
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private final ArrayList<Point> points;
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/**
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* @return Points representing segments of this arc. This function may return an empty
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* ArrayList if the segments are stored in the reversed arc (for two-ways road).
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*/
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public ArrayList<Point> getPoints() {
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return points;
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}
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/**
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* @param dest
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* @param length
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* @param roadInformation
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* @param points
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*/
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public Arc(Node origin, Node dest, int length, RoadInformation roadInformation) {
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this.origin = origin;
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this.destination = dest;
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this.length = length;
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this.info = roadInformation;
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this.points = new ArrayList<Point>();
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origin.addSuccessor(this);
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}
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/**
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* @param dest
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* @param length
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* @param roadInformation
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* @param points
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*/
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public Arc(Node origin, Node dest, int length, RoadInformation roadInformation, ArrayList<Point> points) {
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this.origin = origin;
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this.destination = dest;
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this.length = length;
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this.info = roadInformation;
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this.points = points;
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origin.addSuccessor(this);
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}
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/**
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* @return Origin node of this arc.
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*/
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public Node getOrigin() {
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return origin;
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}
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/**
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* @return Destination node of this arc.
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*/
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public Node getDestination() {
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return destination;
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}
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/**
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* @return Length of this arc, in meters.
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*/
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public int getLength() {
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return length;
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}
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/**
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* @return Minimum time required to travel this arc, in seconds.
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*/
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public double getMinimumTravelTime() {
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return getLength() * 3600.0 / (info.getMaximumSpeed() * 1000.0);
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}
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/**
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* @return Road information for this arc.
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*/
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public RoadInformation getInfo() {
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return info;
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}
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/**
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* @return Points representing segments of this arc. This function may return an
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* empty ArrayList if the segments are stored in the reversed arc (for
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* two-ways road).
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*/
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public List<Point> getPoints() {
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return Collections.unmodifiableList(points);
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}
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}
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@@ -1,60 +1,66 @@
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package org.insa.graph ;
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package org.insa.graph;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class Graph {
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// Map identifier.
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private int mapId;
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// Nodes of the graph.
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private ArrayList<Node> nodes;
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// Map identifier.
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private final int mapId;
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/**
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* @param mapId
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* @param nodes
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*/
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public Graph(int mapId, ArrayList<Node> nodes) {
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this.mapId = mapId;
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this.nodes = nodes;
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}
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/**
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* @return Nodes of this graph.
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*/
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public ArrayList<Node> getNodes() { return nodes; }
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/**
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* Find the closet node to the given point.
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*
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* @param point
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*
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* @return Closest node to the given point.
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*/
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public Node findClosestNode(Point point) {
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Node node = null;
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double minDis = Double.POSITIVE_INFINITY;
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for (int n = 0 ; n < nodes.size(); ++n) {
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double dis = point.distanceTo(nodes.get(n).getPoint());
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if (dis < minDis) {
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node = nodes.get(n);
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minDis = dis;
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}
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// Nodes of the graph.
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private final ArrayList<Node> nodes;
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/**
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* @param mapId
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* @param nodes
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*/
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public Graph(int mapId, ArrayList<Node> nodes) {
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this.mapId = mapId;
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this.nodes = nodes;
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}
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/**
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* @return Nodes of this graph.
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*/
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public List<Node> getNodes() {
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return Collections.unmodifiableList(nodes);
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}
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/**
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* Find the closet node to the given point.
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*
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* @param point
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*
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* @return Closest node to the given point.
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*/
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public Node findClosestNode(Point point) {
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Node node = null;
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double minDis = Double.POSITIVE_INFINITY;
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for (int n = 0; n < nodes.size(); ++n) {
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double dis = point.distanceTo(nodes.get(n).getPoint());
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if (dis < minDis) {
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node = nodes.get(n);
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minDis = dis;
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}
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}
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return node;
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}
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/**
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* @return Map ID of this graph.
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*/
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public int getMapId() { return mapId; }
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/**
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* @return Return the transpose graph of this graph.
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*/
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public Graph transpose() {
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// TODO:
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return null;
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}
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return node;
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}
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/**
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* @return Map ID of this graph.
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*/
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public int getMapId() {
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return mapId;
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}
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/**
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* @return Return the transpose graph of this graph.
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*/
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public Graph transpose() {
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// TODO:
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return null;
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}
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}
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@@ -1,65 +1,73 @@
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package org.insa.graph;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class Node implements Comparable<Node> {
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// ID of the node.
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private int id;
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// Point of this graph.
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private Point point;
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// Successors.
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private ArrayList<Arc> successors;
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/**
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* Create a new Node corresponding to the given Point with
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* an empty list of successors.
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*
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* @param point
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*/
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public Node(int id, Point point) {
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this.id = id;
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this.point = point;
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this.successors = new ArrayList<Arc>();
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}
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// ID of the node.
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private final int id;
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/**
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* Add a successor to this node.
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*
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* @param arc Arc to the successor.
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*/
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protected void addSuccessor(Arc arc) {
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successors.add(arc);
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}
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/**
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* @return ID of this node.
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*/
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public int getId() { return id; }
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/**
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* @return List of successors of this node.
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*/
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public ArrayList<Arc> getSuccessors() { return successors; }
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/**
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* @return Point of this node.
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*/
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public Point getPoint() { return point; }
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@Override
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public boolean equals(Object other) {
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if (other instanceof Node) {
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return getId() == ((Node) other).getId();
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}
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return false;
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}
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// Point of this graph.
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private final Point point;
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// Successors.
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private final ArrayList<Arc> successors;
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/**
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* Create a new Node corresponding to the given Point with an empty list of
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* successors.
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*
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* @param point
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*/
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public Node(int id, Point point) {
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this.id = id;
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this.point = point;
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this.successors = new ArrayList<Arc>();
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}
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/**
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* Add a successor to this node.
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*
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* @param arc Arc to the successor.
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*/
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protected void addSuccessor(Arc arc) {
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successors.add(arc);
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}
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/**
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* @return ID of this node.
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*/
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public int getId() {
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return id;
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}
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/**
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* @return List of successors of this node.
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*/
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public List<Arc> getSuccessors() {
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return Collections.unmodifiableList(successors);
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}
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/**
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* @return Point of this node.
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*/
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public Point getPoint() {
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return point;
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}
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@Override
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public boolean equals(Object other) {
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if (other instanceof Node) {
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return getId() == ((Node) other).getId();
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}
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return false;
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}
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@Override
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public int compareTo(Node other) {
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return Integer.compare(getId(), other.getId());
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}
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@Override
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public int compareTo(Node other) {
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return Integer.compare(getId(), other.getId());
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}
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}
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@@ -5,62 +5,66 @@ package org.insa.graph;
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*
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*/
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public class Point {
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// Earth radius, in meters;
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private static final double EARTH_RADIUS = 6378137.0 ;
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/**
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* Compute the distance between the two given points.
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*
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* @param long1
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* @param lat1
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* @param long2
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* @param lat2
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* @return
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*/
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public static double distance(Point p1, Point p2) {
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double sinLat = Math.sin(Math.toRadians(p1.getLatitude()))*Math.sin(Math.toRadians(p2.getLatitude()));
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double cosLat = Math.cos(Math.toRadians(p1.getLatitude()))*Math.cos(Math.toRadians(p2.getLatitude()));
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double cosLong = Math.cos(Math.toRadians(p2.getLongitude() - p1.getLongitude()));
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return EARTH_RADIUS * Math.acos(sinLat+cosLat*cosLong);
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}
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// Longitude and latitude of the point.
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private double longitude, latitude;
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/**
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*
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* @param longitude Longitude of the point, in degrees.
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* @param latitude Latitude of the point, in degrees.
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*/
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public Point(double longitude, double latitude) {
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this.longitude = longitude;
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this.latitude = latitude;
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}
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/**
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* @return Longitude of this point (in degrees).
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*/
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public double getLongitude() { return longitude; }
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/**
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* @return Latitude of this point (in degrees).
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*/
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public double getLatitude() { return latitude; }
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// Earth radius, in meters;
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private static final double EARTH_RADIUS = 6378137.0;
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/**
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* Compute the distance from this point to the given point
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*
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* @param target Target point.
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*
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* @return Distane between this point and the target point, in meters.
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*/
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public double distanceTo(Point target) {
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return distance(this, target);
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}
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/**
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* Compute the distance between the two given points.
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*
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* @param long1
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* @param lat1
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* @param long2
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* @param lat2
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* @return
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*/
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public static double distance(Point p1, Point p2) {
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double sinLat = Math.sin(Math.toRadians(p1.getLatitude())) * Math.sin(Math.toRadians(p2.getLatitude()));
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double cosLat = Math.cos(Math.toRadians(p1.getLatitude())) * Math.cos(Math.toRadians(p2.getLatitude()));
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double cosLong = Math.cos(Math.toRadians(p2.getLongitude() - p1.getLongitude()));
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return EARTH_RADIUS * Math.acos(sinLat + cosLat * cosLong);
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}
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@Override
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public String toString() {
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return String.format("Point(%f, %f)", getLongitude(), getLatitude());
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}
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// Longitude and latitude of the point.
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private final double longitude, latitude;
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/**
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*
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* @param longitude Longitude of the point, in degrees.
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* @param latitude Latitude of the point, in degrees.
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*/
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public Point(double longitude, double latitude) {
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this.longitude = longitude;
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this.latitude = latitude;
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}
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/**
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* @return Longitude of this point (in degrees).
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*/
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public double getLongitude() {
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return longitude;
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}
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/**
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* @return Latitude of this point (in degrees).
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*/
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public double getLatitude() {
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return latitude;
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}
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/**
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* Compute the distance from this point to the given point
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*
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* @param target Target point.
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*
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* @return Distane between this point and the target point, in meters.
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*/
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public double distanceTo(Point target) {
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return distance(this, target);
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}
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@Override
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public String toString() {
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return String.format("Point(%f, %f)", getLongitude(), getLatitude());
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}
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}
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@@ -1,85 +1,75 @@
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package org.insa.graph ;
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package org.insa.graph;
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/**
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* Class containing information for road that may be shared
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* by multiple arcs.
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* Class containing information for road that may be shared by multiple arcs.
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*
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*/
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public class RoadInformation {
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/**
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* Road type.
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*/
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public enum RoadType {
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MOTORWAY,
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TRUNK,
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PRIMARY,
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SECONDARY,
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MOTORWAY_LINK,
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TRUNK_LINK,
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PRIMARY_LINK,
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SECONDARY_LINK,
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TERTIARY,
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RESIDENTIAL,
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UNCLASSIFIED,
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ROAD,
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LIVING_STREET,
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SERVICE,
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ROUNDABOUT,
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COASTLINE
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}
|
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// Type of the road (see above).
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private RoadType type;
|
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/**
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* Road type.
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*/
|
||||
public enum RoadType {
|
||||
MOTORWAY, TRUNK, PRIMARY, SECONDARY, MOTORWAY_LINK, TRUNK_LINK, PRIMARY_LINK, SECONDARY_LINK, TERTIARY, RESIDENTIAL, UNCLASSIFIED, ROAD, LIVING_STREET, SERVICE, ROUNDABOUT, COASTLINE
|
||||
}
|
||||
|
||||
// One way road?
|
||||
private boolean oneway;
|
||||
// Type of the road (see above).
|
||||
private final RoadType type;
|
||||
|
||||
// Max speed in kilometers per hour.
|
||||
private int maxSpeed;
|
||||
// One way road?
|
||||
private final boolean oneway;
|
||||
|
||||
// Name of the road.
|
||||
private String name;
|
||||
// Max speed in kilometers per hour.
|
||||
private final int maxSpeed;
|
||||
|
||||
public RoadInformation(RoadType roadType, boolean isOneWay, int maxSpeed, String name) {
|
||||
this.type = roadType;
|
||||
this.oneway = isOneWay;
|
||||
this.maxSpeed = maxSpeed;
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return Type of the road.
|
||||
*/
|
||||
public RoadType getType() { return type; }
|
||||
|
||||
/**
|
||||
* @return true if this is a one-way road.
|
||||
*/
|
||||
public boolean isOneWay() { return oneway; }
|
||||
|
||||
/**
|
||||
* @return Maximum speed for this road (in km/h).
|
||||
*/
|
||||
public int getMaximumSpeed() { return maxSpeed; }
|
||||
|
||||
/**
|
||||
* @return Name of the road.
|
||||
*/
|
||||
public String getName() { return name; }
|
||||
// Name of the road.
|
||||
private final String name;
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
String typeAsString = "road";
|
||||
if (getType() == RoadType.COASTLINE) {
|
||||
typeAsString = "coast";
|
||||
}
|
||||
if (getType() == RoadType.MOTORWAY) {
|
||||
typeAsString = "highway";
|
||||
}
|
||||
return typeAsString + " : " + getName()
|
||||
+ " " + (isOneWay() ? " (oneway) " : "")
|
||||
+ maxSpeed + " km/h (max.)";
|
||||
}
|
||||
public RoadInformation(RoadType roadType, boolean isOneWay, int maxSpeed, String name) {
|
||||
this.type = roadType;
|
||||
this.oneway = isOneWay;
|
||||
this.maxSpeed = maxSpeed;
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return Type of the road.
|
||||
*/
|
||||
public RoadType getType() {
|
||||
return type;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return true if this is a one-way road.
|
||||
*/
|
||||
public boolean isOneWay() {
|
||||
return oneway;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return Maximum speed for this road (in km/h).
|
||||
*/
|
||||
public int getMaximumSpeed() {
|
||||
return maxSpeed;
|
||||
}
|
||||
|
||||
/**
|
||||
* @return Name of the road.
|
||||
*/
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
String typeAsString = "road";
|
||||
if (getType() == RoadType.COASTLINE) {
|
||||
typeAsString = "coast";
|
||||
}
|
||||
if (getType() == RoadType.MOTORWAY) {
|
||||
typeAsString = "highway";
|
||||
}
|
||||
return typeAsString + " : " + getName() + " " + (isOneWay() ? " (oneway) " : "") + maxSpeed + " km/h (max.)";
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user