Method round

core/src/main/java/org/apache/calcite/util/TimeString.java:176–187

(int precision)

  }

  public TimeString round(int precision) {
    checkArgument(precision >= 0);
    int targetLength = 9 + precision;
    if (v.length() <= targetLength) {
      return this;
    }
    String v = this.v.substring(0, targetLength);
    while (v.length() >= 9 && (v.endsWith("0") || v.endsWith("."))) {
      v = v.substring(0, v.length() - 1);
    }
    return new TimeString(v);
  }
  public int getMillisOfDay() {
    int h = Integer.valueOf(v.substring(0, 2));
    int m = Integer.valueOf(v.substring(3, 5));