Ejemplo n.º 1
0
  /**
   * Logic Operation on founding a Closing parenthesis
   *
   * @param pil
   * @throws NotNumberException
   * @throws NotBooleanException
   * @throws EmptyListException
   * @throws NotTheSameInstanceException
   * @throws NullObjectsInTheArrayException
   */
  @SuppressWarnings("incomplete-switch")
  private static void doLogicOperation(List<Object> pil)
      throws NotNumberException, NotBooleanException, EmptyListException,
          NotTheSameInstanceException, NullObjectsInTheArrayException {
    List<Object> operands = new ArrayList<Object>();
    List<Object> operators = new ArrayList<Object>();

    Object o = pull(pil);
    while (CommonDifferentTests.areDifferentWhateverClass(o, LogicOperationOperators.OP)) {
      if (CommonClassTests.isBoolean(o)) operands.add(o);
      if (o instanceof LogicOperationOperators) operators.add(o);
      o = pull(pil);
    }

    while (CommonMathTests.ADifferentFromB(operators.size(), 0)) {
      LogicOperationOperators op = (LogicOperationOperators) pull(operators);
      Object o1 = pull(operands);
      Object o2 = pull(operands);

      switch (op) {
        case AND:
          operands.add(CommonLogicTests.and(o1, o2));
          break;
        case OR:
          operands.add(CommonLogicTests.or(o1, o2));
          break;
      }
    }

    pil.add(operands.get(0));
  }
Ejemplo n.º 2
0
  /**
   * Get a Boolean representing the the result of the Logic Operation given on the list
   *
   * @param objects
   * @return
   * @throws NotTheSameInstanceException
   * @throws EmptyListException
   * @throws NullObjectsInTheArrayException
   * @throws NotNumberException
   * @throws NotBooleanException
   */
  public static Boolean getFromLogicOperation(Object... objects)
      throws NotTheSameInstanceException, EmptyListException, NullObjectsInTheArrayException,
          NotNumberException, NotBooleanException {
    if (objects.length == 0)
      throw new EmptyListException(
          "The list must have at least one element : size = " + objects.length);
    // TODO Malformed Logic Operation Exception

    List<Object> pil = new ArrayList<>();
    for (int i = 0; i < objects.length; i++) {
      if (objects[i] instanceof java.lang.Boolean) {
        pil.add(objects[i]);
      }
      if (objects[i] instanceof LogicOperationOperators) {
        switch ((LogicOperationOperators) objects[i]) {
          case AND:
            pil.add(objects[i]);
            break;
          case OR:
            pil.add(objects[i]);
            break;
          case CP:
            doLogicOperation(pil);
            break;
          case OP:
            pil.add(objects[i]);
            break;
          default:
            break;
        }
      }
    }
    return (Boolean) pil.get(0);
  }
Ejemplo n.º 3
0
 /**
  * Pull an element from a list<br>
  * <i>return and remove the latest element</i>
  *
  * @param list
  * @return
  */
 private static Object pull(List<Object> list) {
   Object o = list.get(list.size() - 1);
   list.remove(list.size() - 1);
   return o;
 }