private void FetchFromFile(Element eElement) {
PrintConsole.print("App fetchs gatways from a different file.");
fileAddress = eElement.getAttribute(ATTFILE);
try {
BufferedReader reader = null;
int Id = 0;
InputStream in = getClass().getResourceAsStream(fileAddress);
reader = new BufferedReader(new InputStreamReader(in));
String var = "";
String[] Pos;
gatways = new TreeMap<>();
Vertex newGateway;
while ((var = reader.readLine()) != null) {
Pos = var.split("[ ]");
newGateway = new Vertex(Id, new Point(Integer.valueOf(Pos[0]), Integer.valueOf(Pos[1])));
gatways.put(newGateway.getId(), newGateway);
Id++;
}
reader.close();
} catch (Exception ex) {
PrintConsole.printErr("GatewayConfig/FetchFromFile message:" + ex.getMessage());
}
}
private void FetchStatic(Element eElement) {
PrintConsole.print("App fetchs gatways from cofiguration file <config.xml>.");
gatways = new TreeMap<Integer, Vertex>();
int Id = 0;
NodeList childNodes = eElement.getElementsByTagName(CHILD);
Vertex newGateway;
for (int counter = 0; counter < childNodes.getLength() && counter < num; counter++) {
Node childNode = childNodes.item(counter);
if (childNode.getNodeType() == Node.ELEMENT_NODE) {
Element childElem = (Element) childNode;
newGateway =
new Vertex(
Id,
new Point(
Integer.valueOf(childElem.getAttribute("x")),
Integer.valueOf(childElem.getAttribute("y"))));
gatways.put(newGateway.getId(), newGateway);
Id++;
}
}
}
public List<Arc> chooseArcs(Solution solution, Vertex current) {
List<Arc> nextArcs;
List<Arc> currentOutgoing = current.getOutgoingArcs();
List<Arc> currentOutgoingStillInAreaNotVisited = new LinkedList<Arc>();
for (Arc arc : currentOutgoing) {
Vertex endVertex = arc.getEnd();
if (GeographicDistances.distance(
endVertex, new Vertex(solution.getLatStart(), solution.getLngStart(), -1))
< maxDistanceFromStart) {
if (!arc.isVisited()) {
currentOutgoingStillInAreaNotVisited.add(arc);
}
}
}
// The set of outgoing arcs contains arcs that are not visited
// Choose the best arc among the set
if (!currentOutgoingStillInAreaNotVisited.isEmpty()) {
Collections.sort(currentOutgoingStillInAreaNotVisited, comparator);
nextArcs = Collections.singletonList(currentOutgoingStillInAreaNotVisited.get(0));
}
// Else all the arcs are visited
// Go to the nearest unvisited arc in the area
// TODO - is there a better choice?
else {
nextArcs = pathToNearestUnvisitedArcInArea(current, solution);
}
int newTotal = solution.getTotalTime();
for (Arc arc : nextArcs) newTotal += arc.getDuration();
if (newTotal > maxTime || nextArcs.isEmpty()) return null;
else return nextArcs;
}