/**
* Finds the enum where the getId() value matches the value of the field for this particular
* object.
*
* @param field The field to get the value of.
* @param value The value of the field.
* @return The value, null if the field value is null, also null on error.
*/
public static Object findEnumById(final Field field, final Object value) {
if (!IntrospectionUtils.isIdentifiableEnum(field)) {
throw new IllegalArgumentException(
"Field " + field.getName() + " is not an Identifiable enum");
}
if (value == null) {
return null;
}
final Object[] elements = field.getType().getEnumConstants();
for (final Object element : elements) {
if (((Identifiable<?>) element).getId().equals(value)) {
if (log.isLoggable(Level.FINEST)) {
log.finest("Matched: " + element.toString());
}
return element;
}
}
if (log.isLoggable(Level.FINEST)) {
log.finest("No Match for " + value);
}
return null;
}
/**
* Returns the value of a property descriptor, or null if an error occurs.
*
* @param object The object instance to invoke the property descriptor on
* @param field The field of the class of the object that corresponds with the property
* descriptor.
* @param propertyDescriptor The property descriptor to invoke on the object.
* @return The value of a property descriptor, or null if an error occurs.
*/
public static Object propGetSafeAuto(
final Object object, final Field field, final PropertyDescriptor propertyDescriptor) {
if (IntrospectionUtils.isString(field)) {
// It's a string
return ReflectionUtils.propGetSafe(object, propertyDescriptor);
} else if (IntrospectionUtils.isDate(field)) {
// It's a date
return DateUtils.safeToLong(ReflectionUtils.propGetDateSafe(object, propertyDescriptor));
} else if (IntrospectionUtils.isToStringable(field)) {
// It's toStringable
return StringUtils.safeToString(ReflectionUtils.propGetSafe(object, propertyDescriptor));
} else if (IntrospectionUtils.isIdentifiable(field)) {
// It's identifiable
final Identifiable<?> identifiable =
((Identifiable<?>) ReflectionUtils.propGetSafe(object, propertyDescriptor));
if (identifiable == null) {
return null;
}
return StringUtils.safeToString(identifiable.getId());
} else if (IntrospectionUtils.isInt(field)) {
// It's an int
return ReflectionUtils.propGetSafe(object, propertyDescriptor);
} else if (IntrospectionUtils.isLong(field)) {
// It's a long
return ReflectionUtils.propGetSafe(object, propertyDescriptor);
} else if (IntrospectionUtils.isBoolean(field)) {
// It's a boolean
return ReflectionUtils.propGetSafe(object, propertyDescriptor);
} else {
log.warning(
"Can't handle property getting of type "
+ field.getType()
+ " for field "
+ field.getName());
return ReflectionUtils.propGetSafe(object, propertyDescriptor);
}
}