com.quackware.handsfreemusic.YouTubeUtility.java Source code

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Here is the source code for com.quackware.handsfreemusic.YouTubeUtility.java

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/*******************************************************************************
 * Copyright (c) 2012 Curtis Larson (QuackWare).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 ******************************************************************************/
package com.quackware.handsfreemusic;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

public class YouTubeUtility {
    private static final String YOUTUBE_VIDEO_INFORMATION_URL = "http://www.youtube.com/get_video_info?&video_id=";
    private String youtubeUrl = "";

    private static final String YOUTUBE_DEV_KEY = "AI39si56w6GQUPD1lgFi16am5JJjHMJIhCZGHF7tadpfZMlZCHZXd_40BvQAMfIiB1BvbRaASFvJ4c30YstRBp6QSwLqQjoNdw";
    private static final String YOUTUBE_FEED_START = "   http://gdata.youtube.com/feeds/api/videos?q=";
    private static final String YOUTUBE_FEED_END = "&max-results=10&v=2";

    public YouTubeUtility(String youtubeVideoId) {
        String realYoutubeUrl = "";
        try {
            realYoutubeUrl = calculateYouTubeUrl(youtubeVideoId);
        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        setYoutubeUrl(realYoutubeUrl);

    }

    public static void testYouTube(String query) {

    }

    private void setYoutubeUrl(String realYoutubeUrl) {
        youtubeUrl = realYoutubeUrl;
    }

    public String getYoutubeUrl() {
        return youtubeUrl;
    }

    public static String calculateYouTubeUrl(String youtubeVideoId)
            throws IOException, ClientProtocolException, UnsupportedEncodingException {
        HttpClient client = new DefaultHttpClient();
        HttpGet getMethod = new HttpGet(YOUTUBE_VIDEO_INFORMATION_URL + youtubeVideoId);
        HttpResponse response = null;

        response = client.execute(getMethod);

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        String infoStr = null;
        response.getEntity().writeTo(bos);
        infoStr = new String(bos.toString("UTF-8"));

        String[] args = infoStr.split("&");
        Map<String, String> argMap = new HashMap<String, String>();
        for (int i = 0; i < args.length; i++) {
            String[] argValStrArr = args[i].split("=");
            if (argValStrArr != null) {
                if (argValStrArr.length >= 2) {
                    argMap.put(argValStrArr[0], URLDecoder.decode(argValStrArr[1]));
                }
            }
        }
        String tokenStr = null;
        try {
            tokenStr = URLDecoder.decode(argMap.get("token"));
        } catch (Exception ex) {
            return null;
        }
        String uriStr = "http://www.youtube.com/get_video?video_id=" + youtubeVideoId + "&t="
                + URLEncoder.encode(tokenStr) + "&fmt=18";
        return uriStr;
    }
}