server side control of the execution of JMeter

kieker.live.demo/src/livedemo/managedbeans/JMeterBean.java

@@ -2,9 +2,14 @@ package livedemo.managedbeans;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Observable;
+import java.util.Observer;
 
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
 import javax.faces.bean.ApplicationScoped;
 import javax.faces.bean.ManagedBean;
+import javax.faces.bean.ManagedProperty;
 
 /**
  * @author Bjoern Weissenfels
@@ -13,25 +18,55 @@ import javax.faces.bean.ManagedBean;
  */
 @ManagedBean(name = "jMeterBean")
 @ApplicationScoped
-public class JMeterBean {
+public class JMeterBean implements Observer{
+	
+	private final long TIMEOUT_IN_MILLIS = 120000;
+	private final String DEFAULT_BUTTON_TEXT = "Generate Load";
+	
+	@ManagedProperty(value = "#{analysisBean}")
+	private AnalysisBean analysisBean;
 		
 	private boolean disabled;
+	private long timestamp;
+	private String buttonText;
 	
 	public JMeterBean(){
 		this.disabled = false;
+		this.timestamp = System.currentTimeMillis();
+		this.buttonText = this.DEFAULT_BUTTON_TEXT;
+	}
+	
+	@PostConstruct
+	public void init() {
+		this.analysisBean.getUpdateThread().addObserver(this);
+	}
+
+	@PreDestroy
+	public void terminate() {
+		this.analysisBean.getUpdateThread().deleteObserver(this);
+	}
+	
+	public void setAnalysisBean(final AnalysisBean analysisBean) {
+		this.analysisBean = analysisBean;
+	}
+	
+	public String getButtonText(){
+		return this.buttonText;
 	}
 	
 	public boolean getDisabled(){
 		return this.disabled;
 	}
 	
-	public void change(){
-		this.disabled = !this.disabled;
+	public void runJMeter(){
+		synchronized(this){
+			long actualtime = System.currentTimeMillis();
+			if(actualtime < this.timestamp){
+				return;
+			}else{
+				this.timestamp = actualtime + this.TIMEOUT_IN_MILLIS;
+			}
 		}
-	
-	public synchronized void runJMeter(){ 
-		this.disabled = true;
-		System.out.println("---disabled=true---");
 		Runtime runtime = Runtime.getRuntime();
 		File dir = new File(new File("").getAbsolutePath()+"/jmeter/bin");
 		try {
@@ -40,8 +75,18 @@ public class JMeterBean {
 		} catch (IOException | InterruptedException e) {
 			e.printStackTrace();
 		}
+	}
+
+	@Override
+	public void update(Observable arg0, Object arg1) {
+		long actualtime = System.currentTimeMillis();
+		if(actualtime > this.timestamp){
+			this.buttonText = this.DEFAULT_BUTTON_TEXT;
 			this.disabled = false;
-		System.out.println("---disabled=false---" + runtime.availableProcessors());
+		}else{
+			this.buttonText = "Generate Load in " + String.valueOf((int)((this.timestamp - actualtime)/1000)) + " s";
+			this.disabled = true;
+		}
 	}
 
 }

kieker.live.demo/src/livedemo/managedbeans/MethodResponsetimeBean.java

@@ -157,6 +157,7 @@ public class MethodResponsetimeBean implements Observer {
 	}
 
 	private synchronized void updateModels() {
+		this.maxY = 4;
 		for (final String shortSignature : this.getSelectedMethods()) {
 			final String signature = this.shortToLongSignatures.get(shortSignature);
 
@@ -169,7 +170,11 @@ public class MethodResponsetimeBean implements Observer {
 			final ChartSeries countings = new ChartSeries();
 			countings.setLabel(shortSignature);
 			final Map<Object, Number> countMap = this.methodCallsXYplot.getEntries(signature);
-			this.maxY = this.calculateMaxY(countMap.values());
+			
+			int max = this.calculateMaxY(countMap.values());
+			if(max > this.maxY){
+				this.maxY = max;
+			}
 			countings.setData(countMap);
 			this.countingModel.addSeries(countings);
 		}

kieker.live.demo/webapps/root/chart.xhtml

@@ -63,7 +63,7 @@
 						offLabel="Select One" valueChangeListener="#{methodResponsetimeBean.onChange}">
 						<p:ajax update="dialog"/>
 					</p:selectBooleanButton>
-					<p:commandButton async="true" id="loadButton" value="Generate Load" disabled="#{jMeterBean.disabled}" actionListener="#{jMeterBean.runJMeter}" />
+					<p:commandButton async="true" id="loadButton" value="#{jMeterBean.buttonText}" disabled="#{jMeterBean.disabled}" actionListener="#{jMeterBean.runJMeter}" />
 				</h:panelGrid>
 				
 				<p:dialog id="dialog" header="Select Methods" widgetVar="dlg2" onShow="poll.stop()" onHide="poll.start()" >

kieker.live.demo/webapps/root/index.xhtml

@@ -113,7 +113,7 @@
         		<ul class="menu">
           			<li class="menu-item"><a href="http://kieker-monitoring.net/contact/">Contact</a></li>
           			<li class="menu-item"><a href="http://kieker-monitoring.net/legal-notice/">Legal Notice</a></li>
-          			<li class="menu-item">v08122013</li>
+          			<li class="menu-item" style="font-size:x-small">v17122013</li>
         		</ul>
         	</div>
     	</div>