Class TestBeanGUI

All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, Accessible, ClearGui, JMeterGUIComponent, LocaleChangeListener, Printable

public class TestBeanGUI extends AbstractJMeterGuiComponent implements JMeterGUIComponent, LocaleChangeListener
JMeter GUI element editing for TestBean elements.

The actual GUI is always a bean customizer: if the bean descriptor provides one, it will be used; otherwise, a GenericTestBeanCustomizer will be created for this purpose.

Those customizers deviate from the standards only in that, instead of a bean, they will receive a Map in the setObject call. This will be a property name to value Map. The customizer is also in charge of initializing empty Maps with sensible initial values.

If the provided Customizer class implements the SharedCustomizer interface, the same instance of the customizer will be reused for all beans of the type: setObject(map) can then be called multiple times. Otherwise, one separate instance will be used for each element. For efficiency reasons, most customizers should implement SharedCustomizer.

See Also:
  • Constructor Details

    • TestBeanGUI

      @Deprecated public TestBeanGUI()
      Dummy for JUnit test purposes only
    • TestBeanGUI

      public TestBeanGUI(Class<?> testBeanClass)
  • Method Details

    • getStaticLabel

      public String getStaticLabel()
      Get the component's label. This label is used in drop down lists that give the user the option of choosing one type of component in a list of many. It should therefore be a descriptive name for the end user to see. It must be unique to the class. It is also used by Help to find the appropriate location in the documentation. Normally getLabelResource() should be overridden instead of this method; the definition of this method in AbstractJMeterGuiComponent is intended for general use.
      Specified by:
      getStaticLabel in interface JMeterGUIComponent
      getStaticLabel in class AbstractJMeterGuiComponent
      GUI label for the component.
      See Also:
    • createTestElement

      public org.apache.jmeter.testelement.TestElement createTestElement()
      JMeter test components are separated into a model and a GUI representation. The model holds the data and the GUI displays it. The GUI class is responsible for knowing how to create and initialize with data the model class that it knows how to display, and this method is called when new test elements are created.

      Since 5.6.3, the default implementation is as follows, and subclasses should override JMeterGUIComponent.makeTestElement()

       public TestElement createTestElement() {
           TestElement element = makeTestElement();
           return el;

      Before 5.6.3 the canonical implementation was as follows, however, it is recommended to avoid overriding JMeterGUIComponent.createTestElement() and override JMeterGUIComponent.makeTestElement() instead.

       public TestElement createTestElement() {
           TestElementXYZ el = new TestElementXYZ();
           return el;
      Specified by:
      createTestElement in interface JMeterGUIComponent
      the Test Element object that the GUI component represents.
    • modifyTestElement

      public void modifyTestElement(org.apache.jmeter.testelement.TestElement element)
      GUI components are responsible for populating TestElements they create with the data currently held in the GUI components. This method should overwrite whatever data is currently in the TestElement as it is called after a user has filled out the form elements in the gui with new information.

      If you override AbstractJMeterGuiComponent, you might want using AbstractJMeterGuiComponent.bindingGroup instead of overriding modifyTestElement.

      The canonical implementation looks like this:

       public void modifyTestElement(TestElement element) {
           super.modifyTestElement(element); // clear the element and assign basic fields like name, gui class, test class
           // Using the element setters (preferred):
           // If the field is empty, you probably want to remove the property instead of storing an empty string
           // See Streamline binding of UI elements to TestElement properties
           // for more details
           TestElementXYZ xyz = (TestElementXYZ) element;
           xyz.setState(StringUtils.defaultIfEmpty(guiState.getText(), null));
           xyz.setCode(StringUtils.defaultIfEmpty(guiCode.getText(), null));
           ... other GUI fields ...
           // or directly (do not use unless there is no setter for the field):
           element.setProperty(TestElementXYZ.STATE, StringUtils.defaultIfEmpty(guiState.getText(), null))
           element.setProperty(TestElementXYZ.CODE, StringUtils.defaultIfEmpty(guiCode.getText(), null))
           ... other GUI fields ...
      Specified by:
      modifyTestElement in interface JMeterGUIComponent
      modifyTestElement in class AbstractJMeterGuiComponent
      element - the TestElement to modify
    • createPopupMenu

      public JPopupMenu createPopupMenu()
      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.
      Specified by:
      createPopupMenu in interface JMeterGUIComponent
      a JPopupMenu appropriate for the component.
    • configure

      public void configure(org.apache.jmeter.testelement.TestElement element)
      A newly created gui 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.

      AbstractJMeterGuiComponent provides a partial implementation of this method, setting the name of the component and its enabled status. Subclasses should override this method, performing their own configuration as needed, but also calling this super-implementation.

      Specified by:
      configure in interface JMeterGUIComponent
      configure in class AbstractJMeterGuiComponent
      element - the TestElement to configure
    • getMenuCategories

      public Collection<String> getMenuCategories()
      This is the list of add menu categories this gui component will be available under. For instance, if this represents a Controller, then the MenuFactory.CONTROLLERS category should be in the returned collection. When a user right-clicks on a tree element and looks through the "add" menu, which category your GUI component shows up in is determined by which categories are returned by this method. Most GUI's belong to only one category, but it is possible for a component to exist in multiple categories.
      Specified by:
      getMenuCategories in interface JMeterGUIComponent
      a Collection of Strings, where each element is one of the constants defined in MenuFactory
      See Also:
    • setupGuiClasses

      public int setupGuiClasses()
      Setup GUI class
      number of matches
    • getLabelResource

      public String getLabelResource()
      Get the component's resource name, which getStaticLabel uses to derive the component's label in the local language. The resource name is fixed, and does not vary with the selected language.

      Normally this method should be overridden in preference to overriding getStaticLabel(). However where the resource name is not available or required, getStaticLabel() may be overridden instead.

      Specified by:
      getLabelResource in interface JMeterGUIComponent
      the resource name
    • clearGui

      public void clearGui()
      Provides a default implementation that resets the name field to the value of getStaticLabel(), reset comment and sets enabled to true. Your GUI may need more things cleared, in which case you should override, clear the extra fields, and still call super.clearGui().
      Specified by:
      clearGui in interface ClearGui
      clearGui in class AbstractJMeterGuiComponent
    • isHidden

      public boolean isHidden()
    • isExpert

      public boolean isExpert()
    • localeChanged

      public void localeChanged(LocaleChangeEvent event)
      Handle Locale Change by reloading BeanInfo
      Specified by:
      localeChanged in interface LocaleChangeListener
      event - LocaleChangeEvent
    • getDocAnchor

      public String getDocAnchor()
      Compute Anchor value to find reference in documentation for a particular component}
      Specified by:
      getDocAnchor in interface JMeterGUIComponent
      getDocAnchor in class AbstractJMeterGuiComponent
      String anchor
      See Also:
    • toString

      public String toString()
      toString in class Component