/// <inheritdoc/>
public override Task Connect(grpc.PullConnector request, IServerStreamWriter <grpc.PullRequest> responseStream, ServerCallContext context)
{
var id = request.Id.ToGuid();
var pullConnector = new PullConnector(id, request.Name, request.Interval);
ITimer timer = null;
try
{
_pullConnectors.Register(pullConnector);
timer = _timers.Every(pullConnector.Interval, () =>
{
var pullRequest = new grpc.PullRequest();
responseStream.WriteAsync(pullRequest);
});
context.CancellationToken.ThrowIfCancellationRequested();
context.CancellationToken.WaitHandle.WaitOne();
}
finally
{
timer?.Stop();
timer?.Dispose();
_pullConnectors.Unregister(pullConnector);
}
return(Task.CompletedTask);
}
/// <summary>
/// Initializes a new instance of the <see cref="DataPointsStatePuller"/> class.
/// </summary>
/// <param name="endPoint"><see cref="DataPointsStateEndPoint"/> to pull from.</param>
/// <param name="processors"><see cref="IDataPointProcessors"/> to involve when <see cref="DataPoint">data points</see> are pulled.</param>
/// <param name="timers"><see cref="ITimers"/> for scheduling.</param>
/// <param name="logger"><see cref="ILogger"/> for logging.</param>
public DataPointsStatePuller(
DataPointsStateEndPoint endPoint,
IDataPointProcessors processors,
ITimers timers,
ILogger logger)
{
var channel = new Channel(endPoint.Target, ChannelCredentials.Insecure);
_client = new DataPointsStateClient(channel);
timers.Every(endPoint.Interval, async() => await Pull().ConfigureAwait(false));
_processors = processors;
_logger = logger;
_endPoint = endPoint;
}