findLongestStreak() method

FindLongestStreak.java

@IntDef({
    FIND_STREAK_LESS_THAN_ZERO, FIND_STREAK_LESS_EQUAL_TO_ZERO, FIND_STREAK_LESS_GREATER_ZERO
}) @Retention(RetentionPolicy.SOURCE) public @interface FIND_STREAK_OPERATOR {
}

public static final int FIND_STREAK_LESS_THAN_ZERO = 0;
public static final int FIND_STREAK_LESS_EQUAL_TO_ZERO = 1;
public static final int FIND_STREAK_LESS_GREATER_ZERO = 2;

public int findLongestStreak(float[] values, @FIND_STREAK_OPERATOR int operator) {
  int longestStreak = 0;
  int currentLongestStreak = 0;

  for (int lap = 0; lap < 2; lap++) {
    for (float f : values) {
      if ((operator == FIND_STREAK_LESS_THAN_ZERO && f < 0) ||
          (operator == FIND_STREAK_LESS_EQUAL_TO_ZERO && f == 0) ||
          (operator == FIND_STREAK_LESS_GREATER_ZERO && f > 0)) {
        currentLongestStreak++;
      } else {
        currentLongestStreak = 0;
      }

      if (currentLongestStreak > longestStreak) {
        longestStreak = currentLongestStreak;
        if (longestStreak > values.length) {
          longestStreak = values.length;
        }
      }
    }
  }
  return longestStreak;
}