...

src/explorviz/loadforecaster/Main.java

@@ -20,18 +20,14 @@ import org.jfree.data.xy.DefaultXYDataset;
 import org.jfree.data.xy.XYSeries;
 
 public class Main extends JFrame {
-	private static final double INTENSITY = 6;
-	private static final int THREAD_COUNT = 32;
-
-	/**
-	 * This value somehow is bound to the thread amount => do a real run with
-	 * the desired thread amount and low values. Afterwards, adjust the constant
-	 * accordingly.
-	 */
-	private static final float SESSION_TO_REQUEST_RATIO = 2.1f;
+	private static final double INTENSITY = 400;
 
 	private static final int JMETER_INSTANCES = 1;
 
+	private static final boolean CREATE_PLAN_ON_STDOUT = false;
+	private static int PLAN_DURATION_STEP_IN_SEC = 5 * 60;
+	private static int PLAN_OVERALL_DURATION_IN_SEC = 87200;
+
 	private static final long serialVersionUID = 5979088644386284446L;
 
 	public static void main(String[] args) {
@@ -51,6 +47,10 @@ public class Main extends JFrame {
 		chartPanel.setPreferredSize(fullScreen);
 		setContentPane(chartPanel);
 
+		if (CREATE_PLAN_ON_STDOUT) {
+			createVariableThroughputOut();
+		}
+
 		addWindowListener(new WindowAdapter() {
 			@Override
 			public void windowClosing(WindowEvent e) {
@@ -60,19 +60,34 @@ public class Main extends JFrame {
 		});
 	}
 
+	private void createVariableThroughputOut() {
+		int propCounter = 1;
+
+		for (int currentSecond = 0; currentSecond < PLAN_OVERALL_DURATION_IN_SEC; currentSecond += PLAN_DURATION_STEP_IN_SEC) {
+			output("propName" + propCounter++, getWorkload(currentSecond / 60f),
+					getWorkload((currentSecond + PLAN_DURATION_STEP_IN_SEC) / 60f),
+					PLAN_DURATION_STEP_IN_SEC);
+		}
+	}
+
+	private void output(String propName, int startRPS, int targetRPS, int durationInSec) {
+		System.out.println("<collectionProp name=\"" + propName + "\">\n\t<stringProp name=\""
+				+ startRPS + "\">" + startRPS + "</stringProp>\n\t<stringProp name=\"" + targetRPS
+				+ "\">" + targetRPS + "</stringProp>\n\t<stringProp name=\"" + durationInSec
+				+ "\">" + durationInSec + "</stringProp>\n</collectionProp>");
+	}
+
 	private DefaultXYDataset createDataset() {
 		final DefaultXYDataset dataset = new DefaultXYDataset();
 
 		final XYSeries series1 = new XYSeries("Approximate requests per sec");
 
-		for (float minute = 0f; minute <= 1440f; minute += 0.2f) {
-			series1.add((minute + 1380) * 1000 * 60, getWorkload(minute) * THREAD_COUNT
-					* JMETER_INSTANCES * SESSION_TO_REQUEST_RATIO);
+		for (int minute = 0; minute <= (PLAN_OVERALL_DURATION_IN_SEC / 60); minute += 1) {
+			series1.add((minute + 1380) * 1000 * 60, getWorkload(minute) * JMETER_INSTANCES);
 		}
 		dataset.addSeries("Approximate requests per sec", series1.toArray());
 
 		return dataset;
-
 	}
 
 	private JFreeChart createChart(DefaultXYDataset dataset, String title) {
@@ -80,8 +95,6 @@ public class Main extends JFrame {
 				"Requests per sec", dataset, false, true, false);
 
 		final XYPlot plot = (XYPlot) chart.getPlot();
-		// plot.setBackgroundPaint(Color.white);
-		// plot.setRangeGridlinePaint(Color.black);
 		final XYItemRenderer renderer = plot.getRenderer();
 		renderer.setBaseToolTipGenerator(new StandardXYToolTipGenerator("{1} -> {2}",
 				new SimpleDateFormat("HH:mm"), NumberFormat.getInstance()));
@@ -91,8 +104,8 @@ public class Main extends JFrame {
 		return chart;
 	}
 
-	private static double getWorkload(float expiredMinute) {
-		final double numSessions = ((numSessions(expiredMinute) / 2d) * INTENSITY);
+	private static int getWorkload(float expiredMinute) {
+		final int numSessions = (int) ((numSessions(expiredMinute) / 2d) * INTENSITY);
 		return numSessions > 1 ? numSessions : 1;
 	}