69 lines
1.8 KiB
Java
69 lines
1.8 KiB
Java
package org.insa.algo.shortestpath;
|
|
|
|
import org.insa.algo.AbstractAlgorithm;
|
|
import org.insa.graph.Node;
|
|
|
|
public abstract class ShortestPathAlgorithm extends AbstractAlgorithm<ShortestPathObserver> {
|
|
|
|
protected ShortestPathAlgorithm(ShortestPathData data) {
|
|
super(data);
|
|
}
|
|
|
|
@Override
|
|
public ShortestPathSolution run() {
|
|
return (ShortestPathSolution) super.run();
|
|
}
|
|
|
|
@Override
|
|
protected abstract ShortestPathSolution doRun();
|
|
|
|
@Override
|
|
public ShortestPathData getInputData() {
|
|
return (ShortestPathData) super.getInputData();
|
|
}
|
|
|
|
/**
|
|
* Notify all observers that the origin has been processed.
|
|
*
|
|
* @param node Origin.
|
|
*/
|
|
public void notifyOriginProcessed(Node node) {
|
|
for (ShortestPathObserver obs: getObservers()) {
|
|
obs.notifyOriginProcessed(node);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify all observers that a node has been reached for the first time.
|
|
*
|
|
* @param node Node that has been reached.
|
|
*/
|
|
public void notifyNodeReached(Node node) {
|
|
for (ShortestPathObserver obs: getObservers()) {
|
|
obs.notifyNodeReached(node);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify all observers that a node has been marked, i.e. its final value has
|
|
* been set.
|
|
*
|
|
* @param node Node that has been marked.
|
|
*/
|
|
public void notifyNodeMarked(Node node) {
|
|
for (ShortestPathObserver obs: getObservers()) {
|
|
obs.notifyNodeMarked(node);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Notify all observers that the destination has been reached.
|
|
*
|
|
* @param node Destination.
|
|
*/
|
|
public void notifyDestinationReached(Node node) {
|
|
for (ShortestPathObserver obs: getObservers()) {
|
|
obs.notifyDestinationReached(node);
|
|
}
|
|
}
|
|
}
|