public static boolean fastIsValid()

in kyuubi-hive-jdbc/src/main/java/org/apache/kyuubi/jdbc/hive/common/FastHiveDecimalImpl.java [9217:9299]
81 lines of code
22 McCabe index (conditional complexity)

  public static boolean fastIsValid(
      int fastSignum,
      long fast0,
      long fast1,
      long fast2,
      int fastIntegerDigitCount,
      int fastScale) {
    boolean isValid;
    if (fastSignum == 0) {
      isValid =
          (fast0 == 0 && fast1 == 0 && fast2 == 0 && fastIntegerDigitCount == 0 && fastScale == 0);
      if (!isValid) {
        System.out.println("FAST_IS_VALID signum 0 but other fields not");
      }
    } else {
      isValid =
          ((fast0 >= 0 && fast0 <= MAX_LONGWORD_DECIMAL)
              && (fast1 >= 0 && fast1 <= MAX_LONGWORD_DECIMAL)
              && (fast2 >= 0 && fast2 <= MAX_HIGHWORD_DECIMAL));
      if (!isValid) {
        System.out.println("FAST_IS_VALID fast0 .. fast2 out of range");
      } else {
        if (fastScale < 0 || fastScale > HiveDecimal.MAX_SCALE) {
          System.out.println("FAST_IS_VALID fastScale " + fastScale + " out of range");
          isValid = false;
        } else if (fastIntegerDigitCount < 0 || fastIntegerDigitCount > HiveDecimal.MAX_PRECISION) {
          System.out.println(
              "FAST_IS_VALID fastIntegerDigitCount " + fastIntegerDigitCount + " out of range");
          isValid = false;
        } else if (fastIntegerDigitCount + fastScale > HiveDecimal.MAX_PRECISION) {
          System.out.println(
              "FAST_IS_VALID exceeds max precision: fastIntegerDigitCount "
                  + fastIntegerDigitCount
                  + " and fastScale "
                  + fastScale);
          isValid = false;
        } else {
          // Verify integerDigitCount given fastScale.
          final int rawPrecision = fastRawPrecision(fastSignum, fast0, fast1, fast2);
          if (fastIntegerDigitCount > 0) {
            if (rawPrecision != fastIntegerDigitCount + fastScale) {
              System.out.println(
                  "FAST_IS_VALID integer case: rawPrecision "
                      + rawPrecision
                      + " fastIntegerDigitCount "
                      + fastIntegerDigitCount
                      + " fastScale "
                      + fastScale);
              isValid = false;
            }
          } else {
            if (rawPrecision > fastScale) {
              System.out.println(
                  "FAST_IS_VALID fraction only case: rawPrecision "
                      + rawPrecision
                      + " fastIntegerDigitCount "
                      + fastIntegerDigitCount
                      + " fastScale "
                      + fastScale);
              isValid = false;
            }
          }
          if (isValid) {
            final int trailingZeroCount =
                fastTrailingDecimalZeroCount(fast0, fast1, fast2, fastIntegerDigitCount, fastScale);
            if (trailingZeroCount != 0) {
              System.out.println("FAST_IS_VALID exceeds max precision: trailingZeroCount != 0");
              isValid = false;
            }
          }
        }
      }
    }

    if (!isValid) {
      System.out.println("FAST_IS_VALID fast0 " + fast0);
      System.out.println("FAST_IS_VALID fast1 " + fast1);
      System.out.println("FAST_IS_VALID fast2 " + fast2);
      System.out.println("FAST_IS_VALID fastIntegerDigitCount " + fastIntegerDigitCount);
      System.out.println("FAST_IS_VALID fastScale " + fastScale);
    }
    return isValid;
  }