public Task <IEnumerable <SynoTrack> > GetTracksForAlbumAsync(SynoItem album)
{
var tcs = new TaskCompletionSource <IEnumerable <SynoTrack> >(album);
string urlBase = string.Format("http://{0}:{1}", this.Host, this.Port);
// var url = urlBase + "/webman/modules/AudioStation/webUI/audio_browse.cgi";
var url = urlBase + this.versionDependentResourcesProvider.GetAudioSearchWebserviceRelativePath(this.DsmVersion);
HttpWebRequest request = BuildRequest(url);
int limit = 100;
string postString = string.Format(@"action=browse&target={0}&server=musiclib_music_aa&category=&keyword=&start=0&sort=title&dir=ASC&limit={1}", HttpUtility.UrlEncode(album.ItemID), limit);
byte[] postBytes = System.Text.Encoding.UTF8.GetBytes(postString);
var requestStreamAr = request.BeginGetRequestStream(ar =>
{
// Just make sure we retrieve the right web request : no access to modified closure.
HttpWebRequest webRequest = (HttpWebRequest)ar.AsyncState;
var requestStream = webRequest.EndGetRequestStream(ar);
requestStream.Write(postBytes, 0, postBytes.Length);
requestStream.Close();
var getResponseAr = webRequest.BeginGetResponse(
responseAr =>
{
// Just make sure we retrieve the right web request : no access to modified closure.
var httpWebRequest = responseAr.AsyncState;
var webResponse = webRequest.EndGetResponse(responseAr);
var responseStream = webResponse.GetResponseStream();
var reader = new StreamReader(responseStream);
var content = reader.ReadToEnd();
long count;
IEnumerable <SynoTrack> tracks;
SynologyJsonDeserializationHelper.ParseSynologyTracks(content, out tracks, out count, urlBase);
tracks = tracks.OrderBy(o => o.Track);
var isOnUiThread = Deployment.Current.Dispatcher.CheckAccess();
if (isOnUiThread)
{
if (count > limit)
{
// MessageBox.Show(string.Format("number of available artists ({0}) exceeds supported limit ({1})", count, limit));
}
tcs.SetResult(tracks);
// callback(tracks);
}
else
{
Deployment.Current.Dispatcher.BeginInvoke(
() =>
{
if (count > limit)
{
// MessageBox.Show(string.Format("number of available artists ({0}) exceeds supported limit ({1})", count, limit));
}
tcs.SetResult(tracks);
});
}
},
webRequest);
}, request);
//var getRequestStreamTask = Task.Factory.FromAsync(
// requestStreamAr,
// ar =>
// ,
// TaskCreationOptions.None,
// TaskScheduler.FromCurrentSynchronizationContext());
return(tcs.Task);
}
