public void applyAttachedObject(FacesContext context, UIComponent parent) {
FaceletContext ctx =
(FaceletContext) context.getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY);
// cast to a ValueHolder
ValueHolder vh = (ValueHolder) parent;
ValueExpression ve = null;
Converter c = null;
if (this.binding != null) {
ve = this.binding.getValueExpression(ctx, Converter.class);
c = (Converter) ve.getValue(ctx);
}
if (c == null) {
c = this.createConverter(ctx);
if (ve != null) {
ve.setValue(ctx, c);
}
}
if (c == null) {
throw new TagException(this.tag, "No Converter was created");
}
this.setAttributes(ctx, c);
vh.setConverter(c);
Object lv = vh.getLocalValue();
FacesContext faces = ctx.getFacesContext();
if (lv instanceof String) {
vh.setValue(c.getAsObject(faces, parent, (String) lv));
}
}
@Before
public void setupMocks() {
SpringFacesContextSetter.setCurrentInstance(springFacesContext);
given(springFacesContext.getFacesContext()).willReturn(facesContext);
given(facesContext.getApplication()).willReturn(application);
given(application.createConverter("example")).willReturn(facesConverter);
given(application.createConverter(ClassWithConverter.class)).willReturn(facesConverter);
given(facesConverter.getAsObject(facesContext, null, source)).willReturn(converted);
}
@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object val)
throws ConverterException {
String s = (String) val;
Converter converter = getConverterForValue(context, component);
if (converter != null) {
return converter.getAsObject(context, component, s);
} else {
return s;
}
}
@Override
public Object getConvertedValue(
FacesContext context, UIComponent component, Object submittedValue)
throws ConverterException {
UIInputListOfValues inputDate = (UIInputListOfValues) component;
Converter converter = inputDate.getConverter();
if (converter != null) {
return converter.getAsObject(context, component, String.valueOf(submittedValue));
}
if (submittedValue != null && String.valueOf(submittedValue).trim().isEmpty()) return null;
return submittedValue;
}
public Object getAsObject(FacesContext context, UIComponent component, String value) {
Converter delegate = getDelegate(context);
if (delegate != null) {
return delegate.getAsObject(context, component, value);
} else {
throw new ConverterException(
MessageUtils.getExceptionMessage(
MessageUtils.CANNOT_CONVERT_ID,
converterId != null ? converterId.getExpressionString() : "",
binding != null ? binding.getExpressionString() : ""));
}
}
@Override
public Object getConvertedValue(
FacesContext context, UIComponent component, Object submittedValue)
throws ConverterException {
Converter converter = ComponentUtils.getConverter(context, component);
if (converter != null) {
String convertableValue = submittedValue == null ? null : submittedValue.toString();
return converter.getAsObject(context, component, convertableValue);
} else {
return submittedValue;
}
}
public static Object getConvertedUIOutputValue(
final FacesContext context, final UIOutput output, final Object submittedValue)
throws ConverterException {
if (submittedValue == null) {
return null;
}
final Converter converter = findConverter(context, output);
if (converter == null) {
return submittedValue;
}
return converter.getAsObject(
context, output, (submittedValue instanceof String) ? (String) submittedValue : null);
}
@Override
public Object getConvertedValue(
FacesContext context, UIComponent component, Object submittedValue)
throws ConverterException {
Editor editor = (Editor) component;
String value = (String) submittedValue;
Converter converter = ComponentUtils.getConverter(context, component);
if (converter != null) {
return converter.getAsObject(context, editor, value);
}
return value;
}
public void testNumberConverter(UIViewRoot root)
throws ConverterException, InstantiationException, IllegalAccessException,
ClassNotFoundException {
System.out.println("Tesing NumberConverter");
UIInput text = new UIInput();
text.setId("my_input_number");
root.getChildren().add(text);
Converter converter = application.createConverter("javax.faces.Number");
String stringToConvert = "99.9";
Object obj = converter.getAsObject(getFacesContext(), text, stringToConvert);
assertTrue(obj instanceof java.lang.Number);
String str = converter.getAsString(getFacesContext(), text, obj);
assertTrue(str.equals(stringToConvert));
}
@Test
public void testGetAsObject() {
Converter converter = new AtomicIntegerConverter();
assertNull(converter.getAsObject(null, null, null));
assertNull(converter.getAsObject(null, null, ""));
assertNull(converter.getAsObject(null, null, " "));
assertTrue(8 == ((AtomicInteger) converter.getAsObject(null, null, " 8")).intValue());
assertTrue(8 == ((AtomicInteger) converter.getAsObject(null, null, "8 ")).intValue());
assertTrue(8 == ((AtomicInteger) converter.getAsObject(null, null, "8")).intValue());
int over = Integer.MAX_VALUE + 1;
assertTrue(over == ((AtomicInteger) converter.getAsObject(null, null, over + "")).intValue());
int under = Integer.MIN_VALUE - 1;
assertTrue(under == ((AtomicInteger) converter.getAsObject(null, null, under + "")).intValue());
try {
converter.getAsObject(null, null, "NaN");
fail("should only take numbers");
} catch (ConverterException c) {
}
}
public static Object getConvertedUIOutputValues(
final FacesContext context, final UIOutput output, final Object submittedValue) {
if (submittedValue == null) {
return null;
}
final Converter converter = findConverter(context, output);
if (converter == null) {
return submittedValue;
}
final int length = Array.getLength(submittedValue);
final Class valueType = getValueType(context, output);
final Object ret = Array.newInstance(valueType, length);
for (int i = 0; i < length; ++i) {
final Object target = Array.get(submittedValue, i);
final String value = (target instanceof String) ? (String) target : null;
final Object o = converter.getAsObject(context, output, value);
ArrayUtil.setArrayValue(ret, valueType, o, i);
}
return ret;
}
/**
* populate the argument component with values, being sensitive to the possible multi-nature of
* the values, and to the type of the values.
*
* @param context the <code>FacesContext</code> for the current request
* @param component the <code>UIComponent</code> to populate
* @param componentType the component type
* @param value the value
* @param valueType the value type
*/
private void populateComponentWithValue(
FacesContext context,
UIComponent component,
String componentType,
String value,
String valueType) {
Application application = context.getApplication();
Converter converter = null;
// if we need a converter, and can have a converter
if (!"java.lang.String".equals(valueType) && component instanceof ValueHolder) {
// if so create it,
try {
converter = application.createConverter(CarStore.loadClass(valueType, this));
// add it to our component,
((ValueHolder) component).setConverter(converter);
} catch (ClassNotFoundException cne) {
FacesMessage errMsg = MessageFactory.getMessage(CONVERTER_ERROR_MESSAGE_ID, valueType);
throw new IllegalStateException(errMsg.getSummary());
}
}
// if this component is a SelectOne or SelectMany, take special action
if (isMultiValue(componentType)) {
// create a UISelectItems instance
UISelectItems items = new UISelectItems();
items.setValue(parseStringIntoArrayList(value, converter));
// add it to the component
component.getChildren().add(items);
} else {
// we have a single value
if (null != converter) {
component.getAttributes().put("value", converter.getAsObject(context, component, value));
} else {
component.getAttributes().put("value", value);
}
}
}
public static Object getObjectFromRequestParameter(
String requestParameterName, Converter converter, UIComponent component) {
String theId = JsfUtil.getRequestParameter(requestParameterName);
return converter.getAsObject(FacesContext.getCurrentInstance(), component, theId);
}
public static Object getConvertedValue(
FacesContext facesContext, UIComponent component, Object val) throws ConverterException {
String[] values = (val == null) ? new String[0] : (String[]) val;
Converter converter = SelectManyHelper.getItemConverter(facesContext, component);
ValueExpression ve = component.getValueExpression("value");
Object targetForConvertedValues = null;
if (ve != null) {
// If the component has a ValueExpression for value, let modelType be the type of the value
// expression
Class<?> modelType = ve.getType(facesContext.getELContext());
if (modelType.isArray()) {
// If the component has a ValueExpression for value and the type of the expression is an
// array, let targetForConvertedValues be a new array of the expected type.
Class<?> arrayComponentType = modelType.getComponentType();
targetForConvertedValues = Array.newInstance(arrayComponentType, values.length);
} else if (Collection.class.isAssignableFrom(modelType) || Object.class.equals(modelType)) {
// If modelType is a Collection, do the following to arrive at targetForConvertedValues:
// Ask the component for its attribute under the key "collectionType"
String collectionType = (String) component.getAttributes().get("collectionType");
if (collectionType != null) {
// Let targetForConvertedValues be a new instance of Collection implemented by the
// concrete class specified in collectionType
Class<?> collectionClass = getCollectionClass(collectionType);
try {
targetForConvertedValues = collectionClass.newInstance();
} catch (Exception e) {
throw new FacesException(e);
}
} else {
// If there is no "collectionType" attribute, call getValue() on the component
// The result will implement Collection.
Collection value = (Collection) ((EditableValueHolder) component).getValue();
if (value instanceof Cloneable) {
// If the result also implements Cloneable, let targetForConvertedValues be the result
// of calling its clone() method,
// then calling clear() on the cloned Collection.
try {
targetForConvertedValues =
(Collection) value.getClass().getMethod("clone").invoke(value);
((Collection) targetForConvertedValues).clear();
} catch (Exception e) {
// If unable to clone the value for any reason, log a message
LOG.log(Logger.Level.WARNING, "Unable to clone collection");
}
}
if (targetForConvertedValues == null) {
// and proceed to the next step
Class<?> collectionClass = value == null ? modelType : value.getClass();
try {
// If modelType is a concrete class, let targetForConvertedValues be a new instance of
// that class.
targetForConvertedValues = collectionClass.newInstance();
((Collection) targetForConvertedValues).clear();
} catch (Exception e) {
// Otherwise, the concrete type for targetForConvertedValues is taken from the
// following table
if (Collection.class.isAssignableFrom(modelType)) {
if (SortedSet.class.isAssignableFrom(modelType)) {
targetForConvertedValues = new TreeSet();
} else if (Queue.class.isAssignableFrom(modelType)) {
targetForConvertedValues = new LinkedList();
} else if (Set.class.isAssignableFrom(modelType)) {
targetForConvertedValues = new HashSet(values.length);
} else {
targetForConvertedValues = new ArrayList(values.length);
}
}
}
}
}
} else {
throw new FacesException("ValueExpression must be either an Array, or a Collection");
}
} else {
// If the component does not have a ValueExpression for value, let targetForConvertedValues be
// an array of type Object.
targetForConvertedValues = new Object[values.length];
}
for (int i = 0; i < values.length; i++) {
Object value;
if (converter == null) {
value = values[i];
} else {
value = converter.getAsObject(facesContext, component, values[i]);
}
if (targetForConvertedValues.getClass().isArray()) {
Array.set(targetForConvertedValues, i, value);
} else {
((Collection) targetForConvertedValues).add(value);
}
}
return targetForConvertedValues;
}
public void testDateConverter(UIViewRoot root)
throws ConverterException, InstantiationException, IllegalAccessException,
ClassNotFoundException {
System.out.println("Testing DateConverter");
UIInput text = new UIInput();
text.setId("my_input_date");
root.getChildren().add(text);
Converter converter = null;
converter = application.createConverter("javax.faces.DateTime");
// date
String stringToConvert = "Jan 1, 1967";
Object obj = converter.getAsObject(getFacesContext(), text, stringToConvert);
assertTrue(obj instanceof java.util.Date);
String str = converter.getAsString(getFacesContext(), text, obj);
// make sure we end up with the same string we started with..
assertTrue(str.equals(stringToConvert));
// time
converter = application.createConverter("javax.faces.DateTime");
((DateTimeConverter) converter).setType("time");
text = new UIInput();
text.setId("my_input_time");
stringToConvert = "10:10:10 AM";
obj = converter.getAsObject(getFacesContext(), text, stringToConvert);
assertTrue(obj instanceof java.util.Date);
str = converter.getAsString(getFacesContext(), text, obj);
// make sure we end up with the same string we started with..
assertTrue(str.equals(stringToConvert));
// datetime
converter = application.createConverter("javax.faces.DateTime");
((DateTimeConverter) converter).setType("both");
text = new UIInput();
text.setId("my_input_datetime");
stringToConvert = "Jan 1, 1967 10:10:10 AM";
obj = converter.getAsObject(getFacesContext(), text, stringToConvert);
assertTrue(obj instanceof java.util.Date);
str = converter.getAsString(getFacesContext(), text, obj);
// make sure we end up with the same string we started with..
assertTrue(str.equals(stringToConvert));
// test bogus type....
boolean exceptionThrown = false;
try {
((DateTimeConverter) converter).setType("foobar");
obj = converter.getAsObject(getFacesContext(), text, stringToConvert);
} catch (Exception e) {
exceptionThrown = true;
}
assertTrue(exceptionThrown);
// test NullPointerException (if either context or component arg is null)
exceptionThrown = false;
try {
obj = converter.getAsObject(null, text, stringToConvert);
} catch (NullPointerException npe) {
exceptionThrown = true;
}
assertTrue(exceptionThrown);
exceptionThrown = false;
try {
obj = converter.getAsObject(getFacesContext(), null, stringToConvert);
} catch (NullPointerException npe) {
exceptionThrown = true;
}
assertTrue(exceptionThrown);
exceptionThrown = false;
try {
str = converter.getAsString(null, text, obj);
} catch (NullPointerException npe) {
exceptionThrown = true;
}
assertTrue(exceptionThrown);
exceptionThrown = false;
try {
str = converter.getAsString(getFacesContext(), null, obj);
} catch (NullPointerException npe) {
exceptionThrown = true;
}
assertTrue(exceptionThrown);
}
