Minor Controller fix and K-means w/o pre-processing yet

examples/UnsupervisedAnomalyDetectionExample.java

@@ -4,6 +4,9 @@ import java.util.LinkedList;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.Link;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.Packet;
 import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.PacketSniffer;
+import weka.clusterers.SimpleKMeans;
+import weka.core.Instance;
+import weka.core.Instances;
 
 /**
  * Unsupervised Example - maybe Clustering
@@ -12,9 +15,65 @@ import de.tu_darmstadt.tk.SmartHomeNetworkSim.core.PacketSniffer;
  */
 public class UnsupervisedAnomalyDetectionExample implements PacketSniffer {
 
+	/**
+	 * Clusterer
+	 */
+	private SimpleKMeans clusterer;
+	
+	/**
+	 * True, if instances should be used for training
+	 */
+	private boolean training = true;
+	
+	/**
+	 * 
+	 */
+	public UnsupervisedAnomalyDetectionExample() {
+		clusterer = new SimpleKMeans();
+		clusterer.setSeed(42);
+		try {
+			clusterer.setNumClusters(20);
+		} catch (Exception e) {
+			System.out.println("Error while building cluster");
+			e.printStackTrace();
+		}
+	}
 	@Override
 	public void processPackets(HashMap<Link, LinkedList<Packet>> packets) {
-		//TODO: feature encoding, clustering weka? 
+		if(!packets.entrySet().isEmpty() && packets.entrySet().iterator().next().getValue().getFirst().getTimestamp()>10000)
+			training = false;
+			
+		Instances processed = preProcess(packets);
+		if(training)
+			try {
+				training(processed);
+			} catch (Exception e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		else
+			classify(processed);
+	}
+	
+	private Instances preProcess(HashMap<Link, LinkedList<Packet>> packets) {
+		
+		
+		return null;
+		
+	}
+	
+	private void training(Instances processed) throws Exception {
+		clusterer.buildClusterer(processed);
+	}
+	
+	private void classify(Instances processed) {
+		for(Instance i:processed)
+			try {
+				clusterer.clusterInstance(i);
+			} catch (Exception e) {
+				System.out.println("Anomaly "+i);
+				e.printStackTrace();
+			}
 	}
 
 }

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/control/NetworkController.java

@@ -275,7 +275,7 @@ public class NetworkController {
 			link.addDevice(smartDevice);
 		}
 		
-		if(!smartDevice.getLinks().contains(smartDevice)){
+		if(!smartDevice.getLinks().contains(link)){
 			smartDevice.addLink(link);
 		}