public Element getElementServiceBindingValue(ServiceBinding binding, Element input) {
if (input == null) throw new IllegalArgumentException("input cannot be null");
PropertyEditor editor = PropertyEditorFinder.getInstance().find(Element.class);
if (editor == null)
throw new IllegalStateException("Cannot find PropertyEditor for type Element");
editor.setValue(input);
Reader reader = new StringReader(editor.getAsText());
Writer writer = new StringWriter();
doXslTransform(binding, getConfig(binding), reader, writer);
editor.setAsText(writer.toString());
return (Element) editor.getValue();
}
/**
* 将对象中的属性值置入到fields中。
*
* <p>对于<code>isValidated()</code>为<code>true</code>的group，该方法无效。
*/
public void mapTo(Object object) {
if (isValidated() || object == null) {
return;
}
if (log.isDebugEnabled()) {
log.debug(
"Mapping properties to fields: group=\"{}\", object={}",
getName(),
ObjectUtil.identityToString(object));
}
BeanWrapper bean = new BeanWrapperImpl(object);
getForm().getFormConfig().getPropertyEditorRegistrar().registerCustomEditors(bean);
for (Field field : getFields()) {
String propertyName = field.getFieldConfig().getPropertyName();
if (bean.isReadableProperty(propertyName)) {
Object propertyValue = bean.getPropertyValue(propertyName);
Class<?> propertyType = bean.getPropertyType(propertyName);
PropertyEditor editor = bean.findCustomEditor(propertyType, propertyName);
if (editor == null) {
editor = BeanUtils.findEditorByConvention(propertyType);
}
if (editor == null) {
if (propertyType.isArray()
|| CollectionFactory.isApproximableCollectionType(propertyType)) {
field.setValues((String[]) bean.convertIfNecessary(propertyValue, String[].class));
} else {
field.setValue(bean.convertIfNecessary(propertyValue, String.class));
}
} else {
editor.setValue(propertyValue);
field.setValue(editor.getAsText());
}
} else {
log.debug(
"No readable property \"{}\" found in type {}",
propertyName,
object.getClass().getName());
}
}
}
/**
* Constructs a bean view that views the specified class.
*
* @param viewedClass the viewed class
* @throws IntrospectionException if bean introspection fails
* @see Introspector#getBeanInfo(Class)
*/
public BeanForm(final Class<T> viewedClass) throws IntrospectionException {
final GroupLayoutBuilder builder = new GroupLayoutBuilder(this);
this.beanInfo = Introspector.getBeanInfo(viewedClass);
for (final PropertyDescriptor pd : this.beanInfo.getPropertyDescriptors()) {
final PropertyEditor editor = PropertyEditorManager.findEditor(pd.getPropertyType());
if (editor == null) {
continue;
}
final JTextField textField = new JTextField();
textField.setEditable(false);
textField.setText(editor.getAsText());
this.fieldMap.put(pd.getName(), textField);
builder.field(pd.getDisplayName(), textField);
}
builder.build();
}
/**
* Wraps a property editor into a component.
*
* @param editor the editor to wrap
* @return a button (if there is a custom editor), combo box (if the editor has tags), or text
* field (otherwise)
*/
public Component getEditorComponent(final PropertyEditor editor) {
String[] tags = editor.getTags();
String text = editor.getAsText();
if (editor.supportsCustomEditor()) {
return editor.getCustomEditor();
} else if (tags != null) {
// make a combo box that shows all tags
final JComboBox comboBox = new JComboBox(tags);
comboBox.setSelectedItem(text);
comboBox.addItemListener(
new ItemListener() {
public void itemStateChanged(ItemEvent event) {
if (event.getStateChange() == ItemEvent.SELECTED)
editor.setAsText((String) comboBox.getSelectedItem());
}
});
return comboBox;
} else {
final JTextField textField = new JTextField(text, 10);
textField
.getDocument()
.addDocumentListener(
new DocumentListener() {
public void insertUpdate(DocumentEvent e) {
try {
editor.setAsText(textField.getText());
} catch (IllegalArgumentException exception) {
}
}
public void removeUpdate(DocumentEvent e) {
try {
editor.setAsText(textField.getText());
} catch (IllegalArgumentException exception) {
}
}
public void changedUpdate(DocumentEvent e) {}
});
return textField;
}
}
@Override
protected final int doStartTagInternal() throws JspException {
if (this.value != null) {
// Find the containing EditorAwareTag (e.g. BindTag), if applicable.
EditorAwareTag tag =
(EditorAwareTag) TagSupport.findAncestorWithClass(this, EditorAwareTag.class);
if (tag == null) {
throw new JspException(
"TransformTag can only be used within EditorAwareTag (e.g. BindTag)");
}
// OK, let's obtain the editor...
String result = null;
PropertyEditor editor = tag.getEditor();
if (editor != null) {
// If an editor was found, edit the value.
editor.setValue(this.value);
result = editor.getAsText();
} else {
// Else, just do a toString.
result = this.value.toString();
}
result = htmlEscape(result);
if (this.var != null) {
pageContext.setAttribute(this.var, result, TagUtils.getScope(this.scope));
} else {
try {
// Else, just print it out.
pageContext.getOut().print(result);
} catch (IOException ex) {
throw new JspException(ex);
}
}
}
return SKIP_BODY;
}
public Reference createReference(Object bean) throws NamingException {
try {
BeanInfo bi = Introspector.getBeanInfo(bean.getClass());
PropertyDescriptor[] pds = bi.getPropertyDescriptors();
List refAddrs = new ArrayList();
String factoryClassLocation = defaultFactoryClassLocation;
boolean using_ref_props = referenceProperties.size() > 0;
// we only include this so that on dereference we are not surprised to find some properties
// missing
if (using_ref_props)
refAddrs.add(
new BinaryRefAddr(REF_PROPS_KEY, SerializableUtils.toByteArray(referenceProperties)));
for (int i = 0, len = pds.length; i < len; ++i) {
PropertyDescriptor pd = pds[i];
String propertyName = pd.getName();
// System.err.println("Making Reference: " + propertyName);
if (using_ref_props && !referenceProperties.contains(propertyName)) {
// System.err.println("Not a ref_prop -- continuing.");
continue;
}
Class propertyType = pd.getPropertyType();
Method getter = pd.getReadMethod();
Method setter = pd.getWriteMethod();
if (getter != null
&& setter != null) // only use properties that are both readable and writable
{
Object val = getter.invoke(bean, EMPTY_ARGS);
// System.err.println( "val: " + val );
if (propertyName.equals("factoryClassLocation")) {
if (String.class != propertyType)
throw new NamingException(
this.getClass().getName()
+ " requires a factoryClassLocation property to be a string, "
+ propertyType.getName()
+ " is not valid.");
factoryClassLocation = (String) val;
}
if (val == null) {
RefAddr addMe = new BinaryRefAddr(propertyName, NULL_TOKEN_BYTES);
refAddrs.add(addMe);
} else if (Coerce.canCoerce(propertyType)) {
RefAddr addMe = new StringRefAddr(propertyName, String.valueOf(val));
refAddrs.add(addMe);
} else // other Object properties
{
RefAddr addMe = null;
PropertyEditor pe = BeansUtils.findPropertyEditor(pd);
if (pe != null) {
pe.setValue(val);
String textValue = pe.getAsText();
if (textValue != null) addMe = new StringRefAddr(propertyName, textValue);
}
if (addMe == null) // property editor approach failed
addMe =
new BinaryRefAddr(
propertyName,
SerializableUtils.toByteArray(
val, indirector, IndirectPolicy.INDIRECT_ON_EXCEPTION));
refAddrs.add(addMe);
}
} else {
// System.err.println(this.getClass().getName() +
// ": Skipping " + propertyName + " because it is " + (setter == null ?
// "read-only." : "write-only."));
if (logger.isLoggable(MLevel.WARNING))
logger.warning(
this.getClass().getName()
+ ": Skipping "
+ propertyName
+ " because it is "
+ (setter == null ? "read-only." : "write-only."));
}
}
Reference out =
new Reference(bean.getClass().getName(), factoryClassName, factoryClassLocation);
for (Iterator ii = refAddrs.iterator(); ii.hasNext(); ) out.add((RefAddr) ii.next());
return out;
} catch (Exception e) {
// e.printStackTrace();
if (Debug.DEBUG && logger.isLoggable(MLevel.FINE))
logger.log(MLevel.FINE, "Exception trying to create Reference.", e);
throw new NamingException("Could not create reference from bean: " + e.toString());
}
}
@SuppressWarnings("rawtypes")
private static MenuManager generateListEditorFor(
final IMenuManager manager,
final MenuManager subMenu,
final PropertyDescriptor thisP,
final Editable[] editables,
final Layers theLayers,
final Layer topLevelLayer) {
// find out the type of the editor
final Method m = thisP.getReadMethod();
final Class cl = m.getReturnType();
MenuManager result = subMenu;
// is there a custom editor for this type?
final Class c = thisP.getPropertyEditorClass();
PropertyEditor pe = null;
// try to create an editor for this class
try {
if (c != null) pe = (PropertyEditor) c.newInstance();
} catch (final Exception e) {
MWC.Utilities.Errors.Trace.trace(e);
}
// did it work?
if (pe == null) {
// try to find an editor for this through our manager
pe = PropertyEditorManager.findEditor(cl);
}
// retrieve the tags
final String[] tags = pe.getTags();
// are there any tags for this class?
if (tags != null) {
// create a drop-down list
final MenuManager thisChoice = new MenuManager(thisP.getDisplayName());
// sort out the setter details
final Method getter = thisP.getReadMethod();
// get the current value
Object val = null;
try {
val = getter.invoke(editables[0], (Object[]) null);
} catch (final Exception e) {
MWC.Utilities.Errors.Trace.trace(e);
}
pe.setValue(val);
// convert the current value to text
final String currentValue = pe.getAsText();
// and now a drop-down item for each options
for (int j = 0; j < tags.length; j++) {
final String thisTag = tags[j];
pe.setAsText(thisTag);
final Object thisValue = pe.getValue();
// create the item
final IAction thisA =
new Action(thisTag, IAction.AS_RADIO_BUTTON) {
public void run() {
try {
// hey, since this is a radio button, we get two events when the
// selection changes - one for the value being unset, and the
// other
// for the value being set. So just fire for the new value (the
// one that's checked)
if (isChecked()) {
final Method setter = thisP.getWriteMethod();
// ok, place the change in the action
final ListPropertyAction la =
new ListPropertyAction(
thisP.getDisplayName(),
editables,
getter,
setter,
thisValue,
theLayers,
topLevelLayer);
// and add it to the history
CorePlugin.run(la);
}
} catch (final Exception e) {
CorePlugin.logError(
IStatus.INFO, "While executing select editor for:" + thisP, e);
}
}
};
// is this the current one?
if (thisTag.equals(currentValue)) {
thisA.setChecked(true);
}
// add it to the menu
thisChoice.add(thisA);
}
// is our sub-menu already created?
if (result == null) {
String nameStr;
if (editables.length > 1) nameStr = MULTIPLE_ITEMS_STR;
else nameStr = editables[0].getName();
result = new MenuManager(nameStr);
manager.add(result);
}
result.add(thisChoice);
}
return result;
}
@Test
public void testPropertyEditor() throws Exception {
// test
Class<T> type = getType();
PropertyEditor editor = finder.find(type);
String[] inputData = getInputData();
Object[] expectedData = getOutputData();
String[] expectedStringData = getConvertedToText();
try {
assertTrue("Did not find property editor for type: " + type, editor != null);
assertEquals(
"Editor has wrong package!",
this.getClass().getPackage(),
editor.getClass().getPackage());
logger.finest(
"Found property editor for: " + type + ", editor=" + editor.getClass().getName());
assertEquals(editor + " input length", inputData.length, expectedData.length);
} catch (Exception e) {
throw new RuntimeException(e);
}
for (int i = 0; i < inputData.length; i++) {
String input = inputData[i];
editor.setAsText(input);
// TODO: check instance?
T expected = (T) expectedData[i];
T output = (T) editor.getValue();
Comparator<T> c = getComparator();
boolean equals = false;
if (c == null) {
equals = output != null ? output.equals(expected) : expected == null;
} else {
equals = c.compare(output, expected) == 0;
}
assertTrue(
"Test at index '"
+ i
+ "'. Transform("
+ editor
+ ") of "
+ input
+ "\n does not equal! \nexpected = "
+ logT(expected)
+ "\noutput = "
+ logT(output),
equals);
String expectedStringOutput = expectedStringData[i];
String stringOutput = editor.getAsText();
logger.finest("setAsText '" + logString(input) + "'");
logger.finest("getAsText '" + logString(stringOutput) + "'");
if (type != Properties.class) {
// We can't meaningfully compare the PropertiesEditor string output
String msg =
"Test at index '"
+ i
+ "'. PropertyEditor: "
+ editor.getClass().getName()
+ ", getAsText() == expectedStringOutput '";
assertEquals(msg, expectedStringOutput, stringOutput);
}
}
}
