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

You can use the standart SimpleDateFormat to parse the String to a Date and process it from there:

DateFormat df = new SimpleDateFormat("'PT'mm'M'ss'S'");
String youtubeDuration = "PT1M13S";
Date d = df.parse(youtubeDuration);
Calendar c = new GregorianCalendar();
c.setTime(d);
c.setTimeZone(TimeZone.getDefault());
System.out.println(c.get(Calendar.MINUTE));
System.out.println(c.get(Calendar.SECOND));

Answer 2

May be this would help some one who don't want any library but a simple function,

String duration="PT1H11M14S";

This is the function,

private String getTimeFromString(String duration) {
    // TODO Auto-generated method stub
    String time = "";
    boolean hourexists = false, minutesexists = false, secondsexists = false;
    if (duration.contains("H"))
        hourexists = true;
    if (duration.contains("M"))
        minutesexists = true;
    if (duration.contains("S"))
        secondsexists = true;
    if (hourexists) {
        String hour = "";
        hour = duration.substring(duration.indexOf("T") + 1,
                duration.indexOf("H"));
        if (hour.length() == 1)
            hour = "0" + hour;
        time += hour + ":";
    }
    if (minutesexists) {
        String minutes = "";
        if (hourexists)
            minutes = duration.substring(duration.indexOf("H") + 1,
                    duration.indexOf("M"));
        else
            minutes = duration.substring(duration.indexOf("T") + 1,
                    duration.indexOf("M"));
        if (minutes.length() == 1)
            minutes = "0" + minutes;
        time += minutes + ":";
    } else {
        time += "00:";
    }
    if (secondsexists) {
        String seconds = "";
        if (hourexists) {
            if (minutesexists)
                seconds = duration.substring(duration.indexOf("M") + 1,
                        duration.indexOf("S"));
            else
                seconds = duration.substring(duration.indexOf("H") + 1,
                        duration.indexOf("S"));
        } else if (minutesexists)
            seconds = duration.substring(duration.indexOf("M") + 1,
                    duration.indexOf("S"));
        else
            seconds = duration.substring(duration.indexOf("T") + 1,
                    duration.indexOf("S"));
        if (seconds.length() == 1)
            seconds = "0" + seconds;
        time += seconds;
    }
    return time;
}

Answer 3

I have written and used this method to get the actual duration. Hope this helps.

private String parseDuration(String duration) {
    duration = duration.contains("PT") ? duration.replace("PT", "") : duration;
    duration = duration.contains("S") ? duration.replace("S", "") : duration;
    duration = duration.contains("H") ? duration.replace("H", ":") : duration;
    duration = duration.contains("M") ? duration.replace("M", ":") : duration;
    String[] split = duration.split(":");
    for(int i = 0; i< split.length; i++){
        String item = split[i];
        split[i] = item.length() <= 1 ? "0"+item : item;
    }
    return TextUtils.join(":", split);
}

Answer 4

Joda Time is the go-to library for time-related functions of any kind.

For this specific case ISOPeriodFormat.standard() returns a PeriodFormatter that can parse and format that format.

The resulting object is a Period (JavaDoc). Getting the actual number of seconds would then be period.toStandardSeconds().getSeconds(), but I suggest you just handle the duration as a Period object (for ease of handling and for type safety).

Edit: a note from future me: this answer is several years old now. Java 8 brought java.time.Duration along which can also parse this format and doesn't require an external library.

Answer 5

I did by myself

Let's try

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.

public class YouTubeDurationUtils {
    /**
     * 
     * @param duration
     * @return "01:02:30"
     */
    public static String convertYouTubeDuration(String duration) {
        String youtubeDuration = duration; //"PT1H2M30S"; // "PT1M13S";
        Calendar c = new GregorianCalendar();
        try {
            DateFormat df = new SimpleDateFormat("'PT'mm'M'ss'S'");
            Date d = df.parse(youtubeDuration);
            c.setTime(d);
        } catch (ParseException e) {
            try {
                DateFormat df = new SimpleDateFormat("'PT'hh'H'mm'M'ss'S'");
                Date d = df.parse(youtubeDuration);
                c.setTime(d);
            } catch (ParseException e1) {
                try {
                    DateFormat df = new SimpleDateFormat("'PT'ss'S'");
                    Date d = df.parse(youtubeDuration);
                    c.setTime(d);
                } catch (ParseException e2) {
                }
            }
        }
        c.setTimeZone(TimeZone.getDefault());

        String time = "";
        if ( c.get(Calendar.HOUR) > 0 ) {
            if ( String.valueOf(c.get(Calendar.HOUR)).length() == 1 ) {
                time += "0" + c.get(Calendar.HOUR);
            }
            else {
                time += c.get(Calendar.HOUR);
            }
            time += ":";
        }
        // test minute
        if ( String.valueOf(c.get(Calendar.MINUTE)).length() == 1 ) {
            time += "0" + c.get(Calendar.MINUTE);
        }
        else {
            time += c.get(Calendar.MINUTE);
        }
        time += ":";
        // test second
        if ( String.valueOf(c.get(Calendar.SECOND)).length() == 1 ) {
            time += "0" + c.get(Calendar.SECOND);
        }
        else {
            time += c.get(Calendar.SECOND);
        }
        return time ;
    }
}

Answer 6

Using this website:

// URL that generated this code:
// http://txt2re.com/index-java.php3?s=PT1M13S&6&3&18&20&-19&-21 

import java.util.regex.*;

class Main
{
  public static void main(String[] args)
  {
    String txt="PT1M13S";

    String re1="(P)";   // Any Single Character 1
    String re2="(T)";   // Any Single Character 2
    String re3="(\\d+)";    // Integer Number 1
    String re4="(M)";   // Any Single Character 3
    String re5="(\\d+)";    // Integer Number 2
    String re6="(S)";   // Any Single Character 4

    Pattern p = Pattern.compile(re1+re2+re3+re4+re5+re6,Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
    Matcher m = p.matcher(txt);
    if (m.find())
    {
        String c1=m.group(1);
        String c2=m.group(2);
        String minutes=m.group(3); // Minutes are here
        String c3=m.group(4);
        String seconds=m.group(5); // Seconds are here
        String c4=m.group(6);
        System.out.print("("+c1.toString()+")"+"("+c2.toString()+")"+"("+minutes.toString()+")"+"("+c3.toString()+")"+"("+seconds.toString()+")"+"("+c4.toString()+")"+"\n");

        int totalSeconds = Integer.parseInt(minutes) * 60 + Integer.parseInt(seconds);
    }
  }
}