/**
* Retrieve the latest video in the specified playlist.
*
* @param pPlaylistId the id of the playlist for which to retrieve the latest video id
* @return the video id of the latest video, null if something goes wrong
* @throws java.io.IOException
* @throws org.apache.http.client.ClientProtocolException
* @throws javax.xml.parsers.FactoryConfigurationError
*/
public static String queryLatestPlaylistVideo(PlaylistId pPlaylistId)
throws IOException, ClientProtocolException, FactoryConfigurationError {
String lVideoId = null;
HttpClient lClient = new DefaultHttpClient();
HttpGet lGetMethod =
new HttpGet(
YoutubeUrlIDs.YOUTUBE_PLAYLIST_ATOM_FEED_URL
+ pPlaylistId.getId()
+ "?v=2&max-results=50&alt=json");
HttpResponse lResp = null;
lResp = lClient.execute(lGetMethod);
ByteArrayOutputStream lBOS = new ByteArrayOutputStream();
String lInfoStr = null;
JSONObject lYouTubeResponse = null;
try {
lResp.getEntity().writeTo(lBOS);
lInfoStr = lBOS.toString("UTF-8");
lYouTubeResponse = new JSONObject(lInfoStr);
JSONArray lEntryArr = lYouTubeResponse.getJSONObject("feed").getJSONArray("entry");
JSONArray lLinkArr = lEntryArr.getJSONObject(lEntryArr.length() - 1).getJSONArray("link");
for (int i = 0; i < lLinkArr.length(); i++) {
JSONObject lLinkObj = lLinkArr.getJSONObject(i);
;
String lRelVal = lLinkObj.optString("rel", null);
if (lRelVal != null && lRelVal.equals("alternate")) {
String lUriStr = lLinkObj.optString("href", null);
Uri lVideoUri = Uri.parse(lUriStr);
lVideoId = lVideoUri.getQueryParameter("v");
break;
}
}
} catch (IllegalStateException e) {
Log.i(YouTubeUtility.class.getSimpleName(), "Error retrieving content from YouTube", e);
} catch (IOException e) {
Log.i(YouTubeUtility.class.getSimpleName(), "Error retrieving content from YouTube", e);
} catch (JSONException e) {
Log.i(YouTubeUtility.class.getSimpleName(), "Error retrieving content from YouTube", e);
}
return lVideoId;
}
public Tracks getTracks(final PlaylistId playlistId) {
return baseService.get(PREFIX_PLAYLIST, playlistId.getId(), "tracks", Tracks.class);
}
public Comments getComments(final PlaylistId playlistId) {
return baseService.get(PREFIX_PLAYLIST, playlistId.getId(), "comments", Comments.class);
}
public Fans getFans(final PlaylistId playlistId) {
return baseService.get(PREFIX_PLAYLIST, playlistId.getId(), "fans", Fans.class);
}
public Playlist get(final PlaylistId playlistId) {
return baseService.get(PREFIX_PLAYLIST, playlistId.getId(), Playlist.class);
}
