public TestPlanGui() 
{
        init();
}

Create a new TestPlanGui.

 public  void clearGui() 
{
        super.clearGui();
        functionalMode.setSelected(false);
        serializedMode.setSelected(false);
        argsPanel.clear();
        browseJar.clearFiles();
}

 public  void configure(TestElement el) 
{
        super.configure(el);
        if (el instanceof TestPlan) {
            TestPlan tp = (TestPlan) el;
        functionalMode.setSelected(tp.isFunctionalMode());
        serializedMode.setSelected(tp.isSerialized());
        final JMeterProperty udv = tp.getUserDefinedVariablesAsProperty();
        if (udv != null) {
            argsPanel.configure((Arguments) udv.getObjectValue());
        }
        browseJar.setFiles(tp.getTestPlanClasspathArray());
        }
}

A newly created component can be initialized with the contents of a Test Element object by calling this method. The component is responsible for querying the Test Element object for the relevant information to display in its GUI.

 protected Container createClassPathPanel() 
{
        browseJar = new FileListPanel(JMeterUtils.getResString("test_plan_classpath_browse"), ".jar"); // $NON-NLS-1$ $NON-NLS-2$
        return browseJar;
}

 public JPopupMenu createPopupMenu() 
{
        JPopupMenu pop = new JPopupMenu();
        JMenu addMenu = new JMenu(JMeterUtils.getResString("add")); // $NON-NLS-1$
        addMenu.add(MenuFactory.makeMenuItem(new ThreadGroupGui().getStaticLabel(), ThreadGroupGui.class.getName(),
                ActionNames.ADD));
        addMenu.add(MenuFactory.makeMenu(MenuFactory.CONFIG_ELEMENTS, ActionNames.ADD));
        addMenu.add(MenuFactory.makeMenu(MenuFactory.TIMERS, ActionNames.ADD));
        addMenu.add(MenuFactory.makeMenu(MenuFactory.PRE_PROCESSORS, ActionNames.ADD));
        addMenu.add(MenuFactory.makeMenu(MenuFactory.POST_PROCESSORS, ActionNames.ADD));
        addMenu.add(MenuFactory.makeMenu(MenuFactory.ASSERTIONS, ActionNames.ADD));
        addMenu.add(MenuFactory.makeMenu(MenuFactory.LISTENERS, ActionNames.ADD));
        pop.add(addMenu);
        MenuFactory.addPasteResetMenu(pop);
        MenuFactory.addFileMenu(pop);
        return pop;
}

When a user right-clicks on the component in the test tree, or selects the edit menu when the component is selected, the component will be asked to return a JPopupMenu that provides all the options available to the user from this component.

The TestPlan will return a popup menu allowing you to add ThreadGroups, Listeners, Configuration Elements, Assertions, PreProcessors, PostProcessors, and Timers.

 public TestElement createTestElement() 
{
        TestPlan tp = new TestPlan();
        modifyTestElement(tp);
        return tp;
}

 public String getLabelResource() 
{
        return "test_plan"; // $NON-NLS-1$
}

 public Collection getMenuCategories() 
{
        return null;
}

This is the list of menu categories this gui component will be available under. This implementation returns null, since the TestPlan appears at the top level of the tree and cannot be added elsewhere.

 public  void modifyTestElement(TestElement plan) 
{
        super.configureTestElement(plan);
        if (plan instanceof TestPlan) {
            TestPlan tp = (TestPlan) plan;
            tp.setFunctionalMode(functionalMode.isSelected());
            tp.setSerialized(serializedMode.isSelected());
            tp.setUserDefinedVariables((Arguments) argsPanel.createTestElement());
            tp.setTestPlanClasspathArray(browseJar.getFiles());
        }
}