public static <T> Iterator<T> iterator(Class<T> class1, final Object value) {
if (value == null) {
return Collections.EMPTY_LIST.iterator();
}
if (Boon.isArray(value)) {
final int length = Arry.len(value);
return new Iterator<T>() {
int i = 0;
@Override
public boolean hasNext() {
return i < length;
}
@Override
public T next() {
if (i >= length) throw new NoSuchElementException("No more properties");
T next = (T) BeanUtils.idx(value, i);
i++;
return next;
}
@Override
public void remove() {}
};
} else if (Typ.isCollection(value.getClass())) {
return ((Collection<T>) value).iterator();
} else {
return (Iterator<T>) Collections.singleton(value).iterator();
}
}
/**
* Converts the value to boolean, and if it is null, it uses the default value passed.
*
* @param obj value to convert to boolean
* @param defaultValue default value
* @return obj converted to boolean
*/
public static boolean toBoolean(Object obj, boolean defaultValue) {
if (obj == null) {
return defaultValue;
}
if (obj instanceof Boolean) {
return ((Boolean) obj).booleanValue();
} else if (obj instanceof Number || obj.getClass().isPrimitive()) {
int value = toInt(obj);
return value != 0 ? true : false;
} else if (obj instanceof String || obj instanceof CharSequence) {
String str = Conversions.toString(obj);
if (str.length() == 0) {
return false;
}
if (str.equals("false")) {
return false;
} else {
return true;
}
} else if (Boon.isArray(obj)) {
return Boon.len(obj) > 0;
} else if (obj instanceof Collection) {
if (len(obj) > 0) {
List list = Lists.list((Collection) obj);
while (list.remove(null)) {}
return Lists.len(list) > 0;
} else {
return false;
}
} else {
return toBoolean(Conversions.toString(obj));
}
}