Abstract Topology Component now informs location listeners only when a certain...

Abstract Topology Component now informs location listeners only when a certain location offset is reached
ControllableLocationActurator extends LocationSensor interface to provide location update requests

src/de/tud/kom/p2psim/api/topology/component/ControllableLocationActuator.java

@@ -22,9 +22,8 @@ package de.tud.kom.p2psim.api.topology.component;
 
 import java.util.LinkedList;
 
-import de.tud.kom.p2psim.impl.topology.component.BaseTopologyComponent;
-import de.tud.kom.p2psim.impl.topology.placement.UAVBasePlacement;
 import de.tud.kom.p2psim.impl.topology.util.PositionVector;
+import de.tudarmstadt.maki.simonstrator.api.component.sensor.location.LocationSensor;
 import de.tudarmstadt.maki.simonstrator.api.uavsupport.Actuator;
 import de.tudarmstadt.maki.simonstrator.api.uavsupport.callbacks.BaseConnectedCallback;
 import de.tudarmstadt.maki.simonstrator.api.uavsupport.callbacks.BaseDisconnectedCallback;
@@ -39,7 +38,7 @@ import de.tudarmstadt.maki.simonstrator.api.uavsupport.callbacks.ReachedLocation
  * @author Julian Zobel
  *
  */
-public interface ControllableLocationActuator extends Actuator {
+public interface ControllableLocationActuator extends Actuator, LocationSensor {
 
 	public boolean isActive();
 

src/de/tud/kom/p2psim/impl/topology/component/AbstractTopologyComponent.java

@@ -65,6 +65,7 @@ public abstract class AbstractTopologyComponent implements TopologyComponent {
 	
 	protected SimHost host;	
 	protected final PositionVector position;
+	protected final Double POSITION_REQUEST_UPDATE_ACCURACY = 0.1; // accuracy for location request updates
 	protected Topology topology;
 	
 	protected MovementModel movementModel;
@@ -224,12 +225,21 @@ public abstract class AbstractTopologyComponent implements TopologyComponent {
 	}	
 	
 	@Override
-	public void updateCurrentLocation(Location location) {		
-		position.set(location);
+	public void updateCurrentLocation(Location location) {	
 		
-		for (LocationListener locationListener : listeners) {
-			locationListener.onLocationChanged(getHost(), getLastLocation());
+		boolean informListeners = false;
+		// only inform listeners if the location has changed
+		if(location.distanceTo(position) >= POSITION_REQUEST_UPDATE_ACCURACY) {
+			informListeners = true;
 		}
+				
+		position.set(location);
+		
+		if(informListeners) {
+			for (LocationListener locationListener : listeners) {				
+				locationListener.onLocationChanged(getHost(), getLastLocation());
+			}
+		}		
 	}
 	
 	@Override