/// <summary>
/// Method to start a stream from a Token
/// </summary>
/// <param name="token">Token to get the credentials to query the stream</param>
public void StartStream(Token token)
{
if (_isRunning)
{
throw new OperationCanceledException("You cannot run the stream multiple times");
}
#region Variables
long todayTicks = DateTime.Now.Ticks;
DateTime init = new DateTime(todayTicks - todayTicks % TimeSpan.TicksPerDay + 1);
state = StreamState.Resume;
HttpWebRequest webRequest = token.GenerateRequest(new Uri(StreamUrl));
StreamReader reader = init_webRequest(webRequest);
string jsonTweet;
int error_occured = 0;
#endregion
while (state != StreamState.Stop)
{
try
{
jsonTweet = null;
jsonTweet = reader.ReadLine();
#region Error Checking
if (jsonTweet == null || jsonTweet == "")
{
if (error_occured == 0)
{
++error_occured;
}
else if (error_occured == 1)
{
++error_occured;
webRequest.Abort();
reader = init_webRequest(webRequest);
}
else if (error_occured == 2)
{
++error_occured;
webRequest.Abort();
webRequest = token.GenerateRequest(new Uri(StreamUrl));
reader = init_webRequest(webRequest);
}
else
{
Console.WriteLine("Twitter API is not accessible");
Trace.WriteLine("Twitter API is not accessible");
break;
}
}
else if (error_occured != 0)
{
error_occured = 0;
}
#endregion
Tweet tweet = Tweet.Create(jsonTweet);
if (processTweetDelegate != null)
{
processTweetDelegate(tweet, false);
}
}
catch (IOException ex)
{
// Verify the implementation of the Exception handler
#region IOException Handler
if (ex.Message == "Unable to read data from the transport connection: The connection was closed.")
{
reader = init_webRequest(webRequest);
}
try
{
jsonTweet = reader.ReadLine();
}
catch (IOException ex2)
{
if (ex2.Message == "Unable to read data from the transport connection: The connection was closed.")
{
Trace.WriteLine("Streamreader was unable to read from the stream!");
if (processTweetDelegate != null)
{
processTweetDelegate(null, true);
}
break;
}
}
#endregion
}
}
#region Clean
webRequest.Abort();
reader.Dispose();
state = StreamState.Stop;
#endregion
}
