/// <summary>
/// Sends the downstream.
/// </summary>
/// <param name="message">The message.</param>
/// <exception cref="System.InvalidOperationException">Failed to find a next handler.</exception>
public void SendDownstream(IDownstreamMessage message)
{
if (_next == null)
{
throw new InvalidOperationException("Failed to find a next handler.");
}
_next.Invoke(message);
}
/// <summary>
/// Invokes all downstream messages.
/// </summary>
public void InvokeDownstream()
{
IDownstreamMessage message;
while (_downMessages.TryDequeue(out message))
{
_down.Invoke(message);
}
}