Added relative path WEKA functionality

sources/qpme.simqpn.kernel/src/de/tud/cs/simqpn/kernel/console/SimQPN.java

@@ -76,6 +76,7 @@ import de.tud.cs.simqpn.kernel.monitor.SimulatorProgress;
 public class SimQPN implements IApplication {
 	
 	public static long runtime;
+	private static File qpeFile = null;
 
 	public static void main(String[] args) {
 		startSimQPNWithCommandLine(args);
@@ -100,10 +101,14 @@ public class SimQPN implements IApplication {
 		}
 	}
 
+	public static File getQPEFile() {
+		return qpeFile;
+	}
+
 	private static void runSimulatorOnDocument(Document netDocument,
 			String configurationName, String outputFilename, String logConfigFilename, SimulatorProgress progress, Date date) throws SimQPNException {
 		Element net = netDocument.getRootElement();
-		SimQPNController sim =  SimQPNController.createSimQPNController(net, configurationName, logConfigFilename, date);
+		SimQPNController sim = SimQPNController.createSimQPNController(net, configurationName, logConfigFilename, date);
 		long tic = System.currentTimeMillis();
 		sim.execute(configurationName, outputFilename, progress);
 		long toc = System.currentTimeMillis();
@@ -129,6 +134,7 @@ public class SimQPN implements IApplication {
 		} catch(URISyntaxException ex) {
 			xmlFile = new File(path);
 		}
+		qpeFile = xmlFile;
 		SAXReader xmlReader = new SAXReader();
 		return xmlReader.read(xmlFile);
 	}

sources/qpme.simqpn.kernel/src/de/tud/cs/simqpn/kernel/loading/distributions/WEKACreator.java

@@ -44,18 +44,28 @@ package de.tud.cs.simqpn.kernel.loading.distributions;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.ObjectInputStream;
+import java.nio.file.Paths;
 
 import de.tud.cs.simqpn.kernel.SimQPNException;
+import de.tud.cs.simqpn.kernel.console.SimQPN;
 import weka.classifiers.Classifier;
 
 public class WEKACreator extends DistributionCreator {
 
-	String wekaFilename;
-	Classifier wekaModel;
+	private String wekaFilename;
+	private Classifier wekaModel;
 	
 	@Override
 	protected void loadParams() throws SimQPNException {
 		wekaFilename = this.loadStringParam("wekaFile");
+		if (!Paths.get(wekaFilename).isAbsolute()) { // if not absolute filepath -> switch to DML environment mode
+			// switch from "DQL-Queries/results/" to "DML-Model/StatisticalModels/" folders
+			// treats wekaFile parameter as sole filename
+			wekaFilename = SimQPN.getQPEFile().getParentFile().getParentFile().getParent()
+					+ SimQPN.getQPEFile().separatorChar + "DML-Model"
+					+ SimQPN.getQPEFile().separatorChar + "StatisticalModels" + SimQPN.getQPEFile().separatorChar
+					+ wekaFilename;
+		}
 		try {
 			FileInputStream fis = new FileInputStream(wekaFilename);
 			ObjectInputStream ois = new ObjectInputStream(fis);
@@ -63,7 +73,8 @@ public class WEKACreator extends DistributionCreator {
 			ois.close();
 			fis.close();
 		} catch (ClassNotFoundException | IOException e) {
-			e.printStackTrace();
+			throw new IllegalStateException(
+					"WEKA model with file path " + wekaFilename + " not found or wrong format!");
 		}
 
 	}