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

Solution in Java 8:

Duration.parse(duration).getSeconds()

Answer 2

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;
}

Answer 3

I've implemented this method and it has worked so far.

private String timeHumanReadable (String youtubeTimeFormat) {
// Gets a PThhHmmMssS time and returns a hh:mm:ss time

    String
            temp = "",
            hour = "",
            minute = "",
            second = "",
            returnString;

    // Starts in position 2 to ignore P and T characters
    for (int i = 2; i < youtubeTimeFormat.length(); ++ i)
    {
        // Put current char in c
        char c = youtubeTimeFormat.charAt(i);

        // Put number in temp
        if (c >= '0' && c <= '9')
            temp = temp + c;
        else
        {
            // Test char after number
            switch (c)
            {
                case 'H' : // Deal with hours
                    // Puts a zero in the left if only one digit is found
                    if (temp.length() == 1) temp = "0" + temp;

                    // This is hours
                    hour = temp;

                    break;

                case 'M' : // Deal with minutes
                    // Puts a zero in the left if only one digit is found
                    if (temp.length() == 1) temp = "0" + temp;

                    // This is minutes
                    minute = temp;

                    break;

                case  'S': // Deal with seconds
                    // Puts a zero in the left if only one digit is found
                    if (temp.length() == 1) temp = "0" + temp;

                    // This is seconds
                    second = temp;

                    break;

            } // switch (c)

            // Restarts temp for the eventual next number
            temp = "";

        } // else

    } // for

    if (hour == "" && minute == "") // Only seconds
        returnString = second;
    else {
        if (hour == "") // Minutes and seconds
            returnString = minute + ":" + second;
        else // Hours, minutes and seconds
            returnString = hour + ":" + minute + ":" + second;
    }

    // Returns a string in hh:mm:ss format
    return returnString; 

}