How to convert Youtube API V3 duration in Java

Question

The Youtube V3 API uses ISO8601 time format to describe the duration of videos. Something likes \"PT1M13S\". And now I want to convert the string to the number of seconds (for

Answer 1

public String pretty(String duration) {
  String time = duration.replace("PT", "");
  String hour = null;
  String minute = null;
  String second = null;

  if (time.indexOf("H") > 0) {
    String[] split = time.split("H");
    if (split.length > 0) {
      hour = split[0];
    }
    if (split.length > 1) {
      time = split[1];
    }
  }

  if (time.indexOf("M") > 0) {
    String[] split = time.split("M");
    if (split.length > 0) {
      minute = split[0];
    }
    if (split.length > 1) {
      time = split[1];
    }
  }

  if (time.indexOf("S") > 0) {
    String[] split = time.split("S");
    if (split.length > 0) {
      second = split[0];
    }
  }

  if (TextUtils.isEmpty(hour)) {
    if (TextUtils.isEmpty(minute)) { return "0:" + pad(second, 2, '0'); }
    else { return minute + ":" + pad(second, 2, '0'); }
  }
  else {
    if (TextUtils.isEmpty(minute)) { return hour + ":00:" + pad(second, 2, '0'); }
    else {return hour + ":" + pad(minute, 2, '0') + ":" + pad(second, 2, '0');}
  }
}

private String pad(String word, int length, char ch) {
  if (TextUtils.isEmpty(word)) { word = ""; }
  return length > word.length() ? pad(ch + word, length, ch) : word;
}