Added comments & context menu.

Kieker.WebGUI/src/main/java/kieker/webgui/common/PluginFinder.java

@@ -16,8 +16,24 @@ import kieker.analysis.plugin.port.Plugin;
  */
 public class PluginFinder {
 
-    public static List<Class<?>> getAllPluginsWithinJar(final URL url) throws IOException {
-        final ClassLoader classLoader = new URLClassLoader(new URL[]{url});
+    /**
+     * This method delivers all classes which are available in the given jar and
+     * has the Plugin-Annotation from the Kieker framework.
+     *
+     * @param url The url for the jar.
+     * @return A list containing all available plugin-classes or null, if an
+     * exception occured.
+     */
+    public static List<Class<?>> getAllPluginsWithinJar(final URL url) {
+        try {
+            /*
+             * Get a classloader and make sure that it has the system class
+             * loader as parent and that it knows the url.
+             */
+            final ClassLoader classLoader = new URLClassLoader(new URL[]{url}, ClassLoader.getSystemClassLoader());
+            /*
+             * Open the jar file and run through all entries within this file.
+             */
             final JarFile jarFile = new JarFile(new File(url.getPath()));
             final List<Class<?>> result = new ArrayList<Class<?>>();
             Enumeration<JarEntry> jarEntries = jarFile.entries();
@@ -27,7 +43,14 @@ public class PluginFinder {
                     String name = jarEntry.toString();
                     name = name.replace('/', '.');
                     name = name.replace(".class", "");
+                    /*
+                     * Try to find a class with the same name.
+                     */
                     Class<?> c = classLoader.loadClass(name);
+                    /*
+                     * If it is a class and has the annotation - put it into our
+                     * list.
+                     */
                     if (c.isAnnotationPresent(Plugin.class)) {
                         result.add(c);
                     }
@@ -35,5 +58,8 @@ public class PluginFinder {
                 }
             }
             return result;
+        } catch (IOException ex) {
+            return null;
+        }
     }
 }

Kieker.WebGUI/src/main/webapp/main.xhtml

@@ -42,23 +42,34 @@
                             <p:submenu label="Help">
                                 <p:menuitem value="About..." onclick="AboutDialog.show();"/>
                             </p:submenu>
+                           
                         </p:menubar>
+                       
                     </h:form>
                 </p:layoutUnit> 
 
                 <!-- The following layout is at the left side of the page and shows the available projects. -->
                 <p:layoutUnit style="font-size:15px" header="Projects" collapsible="true" position="west" size="200" resizable="true"  minSize="100">  
                     <h:form id="ProjectsList">
-                        <p:tree selectionMode="single" style="width: auto" value="#{projectsBean.projectsRoot}" var="node" >  
+                        <p:tree id="ProjectsListTree" selectionMode="single" style="width: auto" value="#{projectsBean.projectsRoot}" var="node" >  
                             <p:treeNode>  
                                 <h:outputText value="#{node}"/>
                             </p:treeNode>  
                         </p:tree>
+
+                        <p:contextMenu style="font-size:15px" for="ProjectsListTree">  
+                            <p:menuitem value="Set as Main Project" update="ProjectsList"/>  
+                            <p:menuitem value="Save Project" update="ProjectsList"/>  
+                            <p:separator/>
+                            <p:menuitem value="Delete Project" />  
+                        </p:contextMenu> 
+                       
                     </h:form>
+
                 </p:layoutUnit>  
 
                 <!-- The following layout unit is within the center and used for the graph. -->
-                <p:layoutUnit  position="center">  
+                <p:layoutUnit style="font-size:15px"  position="center">  
                    
                 </p:layoutUnit>