예제 #1
0
  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();
    }
  }
예제 #2
0
  /**
   * 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));
    }
  }