Example usage for java.beans PropertyEditor getCustomEditor

Introduction

In this page you can find the example usage for java.beans PropertyEditor getCustomEditor.

Prototype

java.awt.Component getCustomEditor();

Source Link

Document

A PropertyEditor may choose to make available a full custom Component that edits its property value.

Usage

From source file:org.apache.jmeter.testbeans.gui.GenericTestBeanCustomizer.java

/**
 * Create a customizer for a given test bean type.
 *
 * @param testBeanClass//  ww  w .ja va  2 s .  c om
 *            a subclass of TestBean
 * @see org.apache.jmeter.testbeans.TestBean
 */
GenericTestBeanCustomizer(BeanInfo beanInfo) {
    super();

    this.beanInfo = beanInfo;

    // Get and sort the property descriptors:
    descriptors = beanInfo.getPropertyDescriptors();
    Arrays.sort(descriptors, new PropertyComparator(beanInfo));

    // Obtain the propertyEditors:
    editors = new PropertyEditor[descriptors.length];
    int scriptLanguageIndex = 0;
    int textAreaEditorIndex = 0;
    for (int i = 0; i < descriptors.length; i++) { // Index is also used for accessing editors array
        PropertyDescriptor descriptor = descriptors[i];
        String name = descriptor.getName();

        // Don't get editors for hidden or non-read-write properties:
        if (TestBeanHelper.isDescriptorIgnored(descriptor)) {
            log.debug("Skipping editor for property " + name);
            editors[i] = null;
            continue;
        }

        PropertyEditor propertyEditor;
        Object guiType = descriptor.getValue(GUITYPE);
        if (guiType instanceof TypeEditor) {
            propertyEditor = ((TypeEditor) guiType).getInstance(descriptor);
        } else if (guiType instanceof Class && Enum.class.isAssignableFrom((Class<?>) guiType)) {
            @SuppressWarnings("unchecked") // we check the class type above
            final Class<? extends Enum<?>> enumClass = (Class<? extends Enum<?>>) guiType;
            propertyEditor = new EnumEditor(descriptor, enumClass,
                    (ResourceBundle) descriptor.getValue(GenericTestBeanCustomizer.RESOURCE_BUNDLE));
        } else {
            Class<?> editorClass = descriptor.getPropertyEditorClass();
            if (log.isDebugEnabled()) {
                log.debug("Property " + name + " has editor class " + editorClass);
            }

            if (editorClass != null) {
                try {
                    propertyEditor = (PropertyEditor) editorClass.newInstance();
                } catch (InstantiationException | IllegalAccessException e) {
                    log.error("Can't create property editor.", e);
                    throw new Error(e.toString());
                }
            } else {
                Class<?> c = descriptor.getPropertyType();
                propertyEditor = PropertyEditorManager.findEditor(c);
            }
        }

        if (propertyEditor == null) {
            log.warn("No editor for property: " + name + " type: " + descriptor.getPropertyType() + " in bean: "
                    + beanInfo.getBeanDescriptor().getDisplayName());
            editors[i] = null;
            continue;
        }

        if (log.isDebugEnabled()) {
            log.debug("Property " + name + " has property editor " + propertyEditor);
        }

        validateAttributes(descriptor, propertyEditor);

        if (!propertyEditor.supportsCustomEditor()) {
            propertyEditor = createWrapperEditor(propertyEditor, descriptor);

            if (log.isDebugEnabled()) {
                log.debug("Editor for property " + name + " is wrapped in " + propertyEditor);
            }
        }
        if (propertyEditor instanceof TestBeanPropertyEditor) {
            ((TestBeanPropertyEditor) propertyEditor).setDescriptor(descriptor);
        }

        if (propertyEditor instanceof TextAreaEditor) {
            textAreaEditorIndex = i;
        }
        if (propertyEditor.getCustomEditor() instanceof JScrollPane) {
            scrollerCount++;
        }

        editors[i] = propertyEditor;

        // Initialize the editor with the provided default value or null:
        setEditorValue(i, descriptor.getValue(DEFAULT));

        if (name.equals("scriptLanguage")) {
            scriptLanguageIndex = i;
        }

    }
    // In case of BSF and JSR elements i want to add textAreaEditor as a listener to scriptLanguage ComboBox.
    String beanName = this.beanInfo.getBeanDescriptor().getName();
    if (beanName.startsWith("BSF") || beanName.startsWith("JSR223")) { // $NON-NLS-1$ $NON-NLS-2$
        WrapperEditor we = (WrapperEditor) editors[scriptLanguageIndex];
        TextAreaEditor tae = (TextAreaEditor) editors[textAreaEditorIndex];
        we.addChangeListener(tae);
    }

    // Obtain message formats:
    propertyFieldLabelMessage = new MessageFormat(JMeterUtils.getResString("property_as_field_label")); //$NON-NLS-1$
    propertyToolTipMessage = new MessageFormat(JMeterUtils.getResString("property_tool_tip")); //$NON-NLS-1$

    // Initialize the GUI:
    init();
}

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