[Code] Checking Status of Twitch Stream

So I recently released a plugin that will broadcast a message if your Twitch stream is online or offline. Quite a few people have asked me how I did it, so here's what I did. I used the Justin.tv API to check the status. After understanding the basics from the API, I created a TwitchStream class that I would use to "contact" the website to retrieve the status:

Code:java

package com.chasechocolate.streamnotify.stream;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
 
/**
* You are welcome to use, redistribute and modify your own copies of this class.
* If you use this code, please provide credit to my original plugin
*
* Example usage:
* TwitchStream stream = new TwitchStream("mychannel");
* if(stream.isOnline){
*  Bukkit.broadcastMessage("Our stream is online!");
* }
*
* @author chasechocolate
*/
 
public class TwitchStream {
    private String channel;
 
    private URL url;
    private BufferedReader reader;
 
    private boolean online = false;
 
    public TwitchStream(String channel){
        this.channel = channel;
 
        refresh();
    }
 
    public void refresh(){
        try {
            this.url = new URL("[url]http://api.justin.tv/api/stream/list.json?jsonp=&channel=[/url]" + channel); //Bukkit automatically adds the URL tags, remove them when you copy the class
            this.reader = new BufferedReader(new InputStreamReader(url.openStream()));
 
            if(!(reader.readLine().equals("[]"))){
                online = true;
            } else {
                online = false;
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
    public URL getUrl(){
        return this.url;
    }
 
    public boolean isOnline(){
        return this.online;
    }
}

So there you go! Hope it is helpful

 

I created a Twitch plugin, not public (yet?).

You can also retrieve viewer count, follower count, view count, chat users, chat messages, etc.

 

chasechocolate THANK YOU! I have been wondering how to do this!

How?!? I know it returns an array, but how can I format that? PM me, please

 

xWatermelon

I will post my own thread in this section in a few days about it.

 

k thanks

 

Just a small thing:
In your example, it should be isOnline() instead of isOnline, as its a method, not a public boolean.

 

It actually is a public boolean because that is what it returns.

 

AstramG
The method is a public boolean, but it is being referenced as a field in the code example, where it should be referenced as a method.

 

It is a method, so its working correctly.
:3

 

AstramG
I know, but it is written as .isOnline, not .isOnline(). It not having the parenthesis is implying isOnline is a field, instead of a method

 

It does have parenthesis.
EDIT: Oh you meant in the example, I see now.

 

It has been a bit since I have worked with the API, but to my knowledge it returns a JSON array. You can use Google's GSON library to simply parse the array into a JSON array based on a class file for the fields. Then simply reading the result as an object array.