private Object resolveParameter(java.lang.annotation.Annotation[] parmAnnos, Class<?> paramType) {
Object val = null;
boolean hitResolver = false;
Default defAnno = null;
for (Annotation anno : parmAnnos) {
Class<?> annotype = anno.annotationType();
if (defAnno == null && annotype.equals(Default.class)) {
defAnno = (Default) anno;
continue;
}
ParamResolver<Annotation> resolver = _paramResolvers.get(annotype);
if (resolver == null) continue;
hitResolver = true;
val = resolver.resolveParameter(anno, paramType);
if (val != null) {
break;
}
// don't break until get a value
}
if (val == null && defAnno != null) {
val = Classes.coerce(paramType, defAnno.value());
}
// to compatible to rc2, do we have to?
if (_mappingType && val == null && !hitResolver && _types != null) {
for (Type type : _types) {
if (type != null && paramType.isAssignableFrom(type.clz)) {
val = type.value;
break;
}
}
}
return val;
}
private Object evaluate0(Object self, String expr, Class<?> expectedType, Page page) {
if (expr == null || expr.length() == 0 || expr.indexOf("${") < 0) {
if (expectedType == Object.class || expectedType == String.class) return expr;
return Classes.coerce(expectedType, expr);
}
final Evaluator eval = getEvaluator(page, null);
final Expression expression = eval.parseExpression(expr, expectedType);
return self instanceof Page
? eval.evaluate((Page) self, expression)
: eval.evaluate((Component) self, expression);
}
/** Converts the specified object to an character. */
public static char toChar(Object val) {
return ((Character) Classes.coerce(char.class, val)).charValue();
}
/** Converts the specified object to a (big) decimal. */
public static BigDecimal toDecimal(Object val) {
return (BigDecimal) Classes.coerce(BigDecimal.class, val);
}
/** Converts the specified object to an integer. */
public static int toInt(Object val) {
return ((Integer) Classes.coerce(int.class, val)).intValue();
}
/** Converts the specified object to a number. */
public static Number toNumber(Object val) {
return (Number) Classes.coerce(Number.class, val);
}
/** Converts the specified object to a string. */
public static String toString(Object val) {
return (String) Classes.coerce(String.class, val);
}
/** Converts the specified object to a boolean. */
public static boolean toBoolean(Object val) {
return ((Boolean) Classes.coerce(boolean.class, val)).booleanValue();
}
private void myLoadAttribute(Component comp, Object bean) {
try {
// since 3.1, 20080416, support bindingArgs for non-supported tag
// bug #2803575, merge bindingArgs together since a component can have
// multiple bindings on different attributes.
Map<Object, Object> bindArgs = cast((Map) comp.getAttribute(DataBinder.ARGS));
if (bindArgs == null) {
bindArgs = new HashMap<Object, Object>();
comp.setAttribute(DataBinder.ARGS, bindArgs);
}
if (_args != null) {
bindArgs.putAll(_args);
comp.setAttribute(_attr + "_" + DataBinder.ARGS, _args);
}
if (_converter != null) {
bean = _converter.coerceToUi(bean, comp);
if (bean == TypeConverter.IGNORE) return; // ignore, so don't do Fields.set()
}
// Bug #1876198 Error msg appears when load page (databind+CustomConstraint)
// catching WrongValueException no longer works, check special case and
// use setRowValue() method directly
if ((comp instanceof InputElement) && "value".equals(_attr)) {
Object value = bean;
Object oldv = null;
try { // Bug 1879389
final Method m = comp.getClass().getMethod("getValue");
oldv = ((InputElement) comp).getRawValue();
value = Classes.coerce(m.getReturnType(), bean);
} catch (NoSuchMethodException ex) { // ignore it
}
// See both Bug 3000305 and 2874098
Fields.set(comp, "rawValue", value, _converter == null);
} else {
Fields.set(comp, _attr, bean, _converter == null);
}
} catch (ClassCastException ex) {
throw UiException.Aide.wrap(ex);
} catch (NoSuchMethodException ex) {
// Bug #1813278, Annotations do not work with xhtml tags
if (comp instanceof DynamicPropertied) {
final DynamicPropertied dpcomp = (DynamicPropertied) comp;
if (dpcomp.hasDynamicProperty(_attr)) {
// no way to know destination type of the property, use bean as is
dpcomp.setDynamicProperty(_attr, bean);
} else {
throw UiException.Aide.wrap(ex);
}
} else { // Feature# 2855116. Save into component custom-attribute(also a variable in ZK5).
comp.setAttribute(_attr, bean);
}
// Bug #1876198 Error msg appears when load page (databind+CustomConstraint)
// catching WrongValueException no longer works, so mark it out
/*} catch (WrongValueException ex) {
//Bug #1615371, try to use setRawValue()
if ("value".equals(_attr)) {
try {
Fields.set(comp, "rawValue", bean, _converter == null);
} catch (Exception ex1) {
//exception
throw ex;
}
} else {
throw ex;
}
*/
}
}