AudioAddict listen key validator

package tobiass.audioaddict.api;

import java.net.HttpURLConnection;
import java.net.Proxy;
import java.net.URL;
import java.util.Random;

/**
 * ListenKeyValRequest.java
 * @author _Tobias
 * [email protected]
 */

public class ListenKeyValRequest {
    private String key = null;
    private boolean async = true;
    private onFinishListener mFinishListener = null;
    private Proxy mProxy = null;
    private Random mRandom = new Random();

    public ListenKeyValRequest(String listenkey) {
        key = listenkey;
    }

    public ListenKeyValRequest setAsync(boolean arg) {
        async = arg;
        return this;
    }

    public ListenKeyValRequest setListenKey(String arg) {
        key = arg;
        return this;
    }

    public ListenKeyValRequest setProxy(Proxy arg) {
        mProxy = arg;
        return this;
    }

    public ListenKeyValRequest setOnFinishListener(onFinishListener arg) {
        mFinishListener = arg;
        return this;
    }

    public ListenKeyValRequest start() {
        if(key == null) {
            return this;
        }
        Runnable r = new Runnable() {
            public void run() {
                int res = getStatusCode(getStreamUrl()+"?"+key);
                if(res == -1) {
                    callFinish(KeyState.FAILURE);
                }
                else if(res == 200) {
                    callFinish(KeyState.PREMIUM);
                }
                else if(res == 401) {
                    res = getStatusCode("http://listen.di.fm/premium/favorites?"+key);
                    if(res == 200) {
                        callFinish(KeyState.FREE);
                    }
                    else if(res == 403) {
                        callFinish(KeyState.INVALID);
                    }
                    else if(res == -1) {
                        callFinish(KeyState.FAILURE);
                    }
                }
            }
        };
        if(async) {
            new Thread(r).start();
        }
        else {
            r.run();
        }
        return this;
    }

    private int getStatusCode(String url) {
        try {
            HttpURLConnection conn;
            if(mProxy != null) {
                conn = (HttpURLConnection) new URL(url).openConnection(mProxy);
            }
            else {
                conn = (HttpURLConnection) new URL(url).openConnection();
            }
            int code = conn.getResponseCode();
            conn.disconnect();
            return code;
        } catch (Exception e) {
            return -1;
        }
    }

    private String getStreamUrl() {
        String[] urls = {"http://prem2.di.fm:80/chillhop","http://prem4.di.fm:80/chillhop","http://prem1.di.fm:80/chillhop","http://prem2.di.fm:80/downtempolounge","http://prem1.di.fm:80/downtempolounge","http://prem4.di.fm:80/downtempolounge","http://prem2.di.fm:80/trap","http://prem1.di.fm:80/trap","http://prem4.di.fm:80/trap","http://prem2.di.fm:80/sankeys","http://prem4.di.fm:80/sankeys","http://prem1.di.fm:80/sankeys","http://prem2.di.fm:80/trance","http://prem1.di.fm:80/trance","http://prem4.di.fm:80/trance","http://prem2.di.fm:80/vocaltrance","http://prem1.di.fm:80/vocaltrance","http://prem4.di.fm:80/vocaltrance","http://prem2.di.fm:80/lounge","http://prem1.di.fm:80/lounge","http://prem4.di.fm:80/lounge","http://prem2.di.fm:80/chillout","http://prem1.di.fm:80/chillout","http://prem4.di.fm:80/chillout","http://prem2.di.fm:80/vocalchillout","http://prem1.di.fm:80/vocalchillout","http://prem4.di.fm:80/vocalchillout","http://prem2.di.fm:80/progressive","http://prem1.di.fm:80/progressive","http://prem4.di.fm:80/progressive","http://prem2.di.fm:80/house","http://prem1.di.fm:80/house","http://prem4.di.fm:80/house","http://prem2.di.fm:80/mainstage","http://prem1.di.fm:80/mainstage","http://prem4.di.fm:80/mainstage","http://prem2.di.fm:80/umfradio","http://prem4.di.fm:80/umfradio","http://prem1.di.fm:80/umfradio","http://prem2.di.fm:80/minimal","http://prem1.di.fm:80/minimal","http://prem4.di.fm:80/minimal","http://prem2.di.fm:80/harddance","http://prem1.di.fm:80/harddance","http://prem4.di.fm:80/harddance","http://prem2.di.fm:80/eurodance","http://prem1.di.fm:80/eurodance","http://prem4.di.fm:80/eurodance","http://prem2.di.fm:80/techhouse","http://prem1.di.fm:80/techhouse","http://prem4.di.fm:80/techhouse","http://prem2.di.fm:80/electrohouse","http://prem1.di.fm:80/electrohouse","http://prem4.di.fm:80/electrohouse","http://prem2.di.fm:80/bigroomhouse","http://prem4.di.fm:80/bigroomhouse","http://prem1.di.fm:80/bigroomhouse","http://prem2.di.fm:80/psychill","http://prem1.di.fm:80/psychill","http://prem4.di.fm:80/psychill","http://prem2.di.fm:80/goapsy","http://prem1.di.fm:80/goapsy","http://prem4.di.fm:80/goapsy","http://prem2.di.fm:80/progressivepsy","http://prem4.di.fm:80/progressivepsy","http://prem1.di.fm:80/progressivepsy","http://prem2.di.fm:80/hardcore","http://prem1.di.fm:80/hardcore","http://prem4.di.fm:80/hardcore","http://prem2.di.fm:80/djmixes","http://prem1.di.fm:80/djmixes","http://prem4.di.fm:80/djmixes","http://prem2.di.fm:80/russianclubhits","http://prem1.di.fm:80/russianclubhits","http://prem4.di.fm:80/russianclubhits","http://prem2.di.fm:80/ambient","http://prem1.di.fm:80/ambient","http://prem4.di.fm:80/ambient","http://prem2.di.fm:80/drumandbass","http://prem1.di.fm:80/drumandbass","http://prem4.di.fm:80/drumandbass","http://prem2.di.fm:80/eclectronica","http://prem1.di.fm:80/eclectronica","http://prem4.di.fm:80/eclectronica","http://prem2.di.fm:80/classicelectronica","http://prem1.di.fm:80/classicelectronica","http://prem4.di.fm:80/classicelectronica","http://prem2.di.fm:80/epictrance","http://prem4.di.fm:80/epictrance","http://prem1.di.fm:80/epictrance","http://prem2.di.fm:80/ukgarage","http://prem4.di.fm:80/ukgarage","http://prem1.di.fm:80/ukgarage","http://prem2.di.fm:80/breaks","http://prem1.di.fm:80/breaks","http://prem4.di.fm:80/breaks","http://prem2.di.fm:80/cosmicdowntempo","http://prem1.di.fm:80/cosmicdowntempo","http://prem4.di.fm:80/cosmicdowntempo","http://prem2.di.fm:80/techno","http://prem1.di.fm:80/techno","http://prem4.di.fm:80/techno","http://prem2.di.fm:80/soulfulhouse","http://prem1.di.fm:80/soulfulhouse","http://prem4.di.fm:80/soulfulhouse","http://prem2.di.fm:80/deephouse","http://prem4.di.fm:80/deephouse","http://prem1.di.fm:80/deephouse","http://prem2.di.fm:80/deeptech","http://prem1.di.fm:80/deeptech","http://prem4.di.fm:80/deeptech","http://prem2.di.fm:80/tribalhouse","http://prem1.di.fm:80/tribalhouse","http://prem4.di.fm:80/tribalhouse","http://prem2.di.fm:80/funkyhouse","http://prem1.di.fm:80/funkyhouse","http://prem4.di.fm:80/funkyhouse","http://prem2.di.fm:80/deepnudisco","http://prem1.di.fm:80/deepnudisco","http://prem4.di.fm:80/deepnudisco","http://prem2.di.fm:80/spacemusic","http://prem1.di.fm:80/spacemusic","http://prem4.di.fm:80/spacemusic","http://prem2.di.fm:80/hardstyle","http://prem1.di.fm:80/hardstyle","http://prem4.di.fm:80/hardstyle","http://prem2.di.fm:80/chilloutdreams","http://prem1.di.fm:80/chilloutdreams","http://prem4.di.fm:80/chilloutdreams","http://prem2.di.fm:80/liquiddnb","http://prem1.di.fm:80/liquiddnb","http://prem4.di.fm:80/liquiddnb","http://prem2.di.fm:80/darkdnb","http://prem4.di.fm:80/darkdnb","http://prem1.di.fm:80/darkdnb","http://prem2.di.fm:80/classiceurodance","http://prem1.di.fm:80/classiceurodance","http://prem4.di.fm:80/classiceurodance","http://prem2.di.fm:80/handsup","http://prem1.di.fm:80/handsup","http://prem4.di.fm:80/handsup","http://prem2.di.fm:80/club","http://prem1.di.fm:80/club","http://prem4.di.fm:80/club","http://prem2.di.fm:80/classictrance","http://prem1.di.fm:80/classictrance","http://prem4.di.fm:80/classictrance","http://prem2.di.fm:80/classicvocaltrance","http://prem1.di.fm:80/classicvocaltrance","http://prem4.di.fm:80/classicvocaltrance","http://prem2.di.fm:80/clubdubstep","http://prem4.di.fm:80/clubdubstep","http://prem1.di.fm:80/clubdubstep","http://prem2.di.fm:80/dubstep","http://prem1.di.fm:80/dubstep","http://prem4.di.fm:80/dubstep","http://prem2.di.fm:80/liquiddubstep","http://prem1.di.fm:80/liquiddubstep","http://prem4.di.fm:80/liquiddubstep","http://prem2.di.fm:80/glitchhop","http://prem1.di.fm:80/glitchhop","http://prem4.di.fm:80/glitchhop","http://prem2.di.fm:80/discohouse","http://prem1.di.fm:80/discohouse","http://prem4.di.fm:80/discohouse","http://prem2.di.fm:80/classiceurodisco","http://prem1.di.fm:80/classiceurodisco","http://prem4.di.fm:80/classiceurodisco","http://prem2.di.fm:80/futuresynthpop","http://prem1.di.fm:80/futuresynthpop","http://prem4.di.fm:80/futuresynthpop","http://prem2.di.fm:80/latinhouse","http://prem1.di.fm:80/latinhouse","http://prem4.di.fm:80/latinhouse","http://prem2.di.fm:80/oldschoolacid","http://prem1.di.fm:80/oldschoolacid","http://prem4.di.fm:80/oldschoolacid","http://prem2.di.fm:80/chiptunes","http://prem1.di.fm:80/chiptunes","http://prem4.di.fm:80/chiptunes"};
        return urls[getRandomBetween(0, urls.length-1, mRandom)];
    }

    private int getRandomBetween(int a, int b, Random r) {
        return a+r.nextInt(b-a+1);
    }

    private void callFinish(KeyState arg) {
        if(mFinishListener != null) {
            mFinishListener.on(arg);
        }
    }

    public interface onFinishListener {
        public void on(KeyState arg);
    }

    public enum KeyState {
        PREMIUM, FREE, INVALID, FAILURE
    }
}