YouTube.java

package com.ved.musicmapapp.youtube;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.params.ClientPNames;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.ved.musicmapapp.utils.DeveloperKey;

import android.util.Log;


public class YouTube {

	public ArrayList<Video> getVideos(String username) throws YouTubeException {
		String rawJSON = fetchJSON(username);
		ArrayList<Video> videos;

		try {
			JSONObject resultSet = new JSONObject(rawJSON);
			JSONArray results = resultSet.getJSONArray("items");
			videos = new ArrayList<Video>(results.length());

			if(results.length()>1) {
				videos.add(new Video(results.getJSONObject(0)));
			}
		} catch(JSONException e) {
			throw new YouTubeException(e);
		}

		return videos;
	}

	private String fetchJSON(String username) throws YouTubeException {
		String url = null;
		try {
			String temp = URLEncoder.encode(username.trim(), "UTF-8");
			url = feedUrl(temp);
		} catch (UnsupportedEncodingException e1) {
			e1.printStackTrace();
		}
		HttpClient httpClient = new DefaultHttpClient();
		HttpContext localContext = new BasicHttpContext();

		try{
			HttpGet httpGet = new HttpGet(url);
			httpGet.setHeader("User-Agent", "Android");
			httpGet.setHeader(HTTP.CONTENT_TYPE,"application/json;charset=UTF-8");
			System.out.println("final url : "+url);
			httpClient.getParams().setParameter(ClientPNames.ALLOW_CIRCULAR_REDIRECTS, true);
			HttpResponse response = httpClient.execute(httpGet,localContext);
			String text = EntityUtils.toString(response.getEntity(), HTTP.UTF_8);
			return text;
		}
		catch(Exception e){
			e.printStackTrace();	
			throw new YouTubeException(e);
		}		
	}

	private String feedUrl(String username) {
		Log.e("check","url///"+"https://www.googleapis.com/youtube/v3/search?part=snippet&q="+username+"&type=video&key="+DeveloperKey.DEVELOPER_KEY);
		return "https://www.googleapis.com/youtube/v3/search?part=snippet&q="+username+"&type=video&key="+DeveloperKey.DEVELOPER_KEY;
	}
}