/// <summary>
/// Runs the activity.
/// </summary>
private void Run()
{
InstantMessagingCall.StateChanged += new EventHandler <CallStateChangedEventArgs>(this.HandleInstantMessageCallStateChanged);
InstantMessagingCall.Flow.MessageReceived += new EventHandler <InstantMessageReceivedEventArgs>(this.Customer_MessageReceived);
SendInstantMessageActivity sendIMActivity = new SendInstantMessageActivity(this.InstantMessagingCall, this.Prompt);
Task <ActivityResult> SendIMTask = sendIMActivity.ExecuteAsync();
SendIMTask.ContinueWith((task) =>
{
if (task.Exception == null)
{
this.m_lastImReceivedTime = DateTime.Now;
m_timer.Start();
}
else
{
if (m_tcs != null)
{
m_tcs.TrySetException(task.Exception);
}
}
});
}
/// <summary>
/// Handles an event when timer is expired.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Timer_Elapsed(object sender, ElapsedEventArgs e)
{
TimeSpan idleInterval = DateTime.Now - this.m_lastImReceivedTime;
Exception ex = null;
if (idleInterval.Seconds >= this.SilenceTimeOut)
{
this.m_lastImReceivedTime = DateTime.Now;
NoInputCount++;
if (this.InstantMessagingCall.State != CallState.Terminated)
{
SendInstantMessageActivity senIM = new SendInstantMessageActivity(this.InstantMessagingCall, this.NoRecognitionPrompt);
Task <ActivityResult> sendIMTask = senIM.ExecuteAsync();
sendIMTask.ContinueWith((task) =>
{
try
{
if (NoInputCount >= MaxSilenceCount)
{
this.m_timer.Stop();
if (!string.IsNullOrEmpty(this.EscalatedSilencePrompt))
{
SendInstantMessageActivity sendIM = new SendInstantMessageActivity(this.InstantMessagingCall, this.EscalatedSilencePrompt);
Task <ActivityResult> sendEscalatedMessage = sendIM.ExecuteAsync();
sendEscalatedMessage.Wait();
}
throw new SilenceTimeOutException("No Input from User");
}
}
catch (SilenceTimeOutException exception)
{
ex = exception;
}
catch (Exception exception)
{
ex = exception;
}
finally
{
if (ex != null)
{
this.UnRegisterEvents();
if (m_tcs != null)
{
m_tcs.TrySetException(ex);
}
}
}
});
}
}
}
/// <summary>
/// Function called when users input is not recognized againt expected inputs.
/// </summary>
protected void HandleNoRecognition()
{
Exception ex = null;
SendInstantMessageActivity sendInstantMessage = new SendInstantMessageActivity(this.InstantMessagingCall, this.NoRecognitionPrompt);
Task <ActivityResult> sendNoRecoIMTask = sendInstantMessage.ExecuteAsync();
sendNoRecoIMTask.ContinueWith((task) =>
{
try
{
this.NoRecoCount++;
if (this.NoRecoCount == this.MaxNoRecoAttempts)
{
this.m_timer.Stop();
if (!string.IsNullOrEmpty(this.EscalatedNoRecognitionPrompt))
{
SendInstantMessageActivity sendIM = new SendInstantMessageActivity(this.InstantMessagingCall, this.EscalatedNoRecognitionPrompt);
Task <ActivityResult> sendEscalatedMessage = sendIM.ExecuteAsync();
sendEscalatedMessage.Wait();
}
throw new NoRecognitionException("NoRecognition");
}
}
catch (NoRecognitionException exception)
{
ex = exception;
}
catch (Exception exception)
{
ex = exception;
}
finally
{
if (ex != null)
{
this.UnRegisterEvents();
if (m_tcs != null)
{
m_tcs.TrySetException(ex);
}
}
}
});
}
