/// <inheritdoc/>
public override Task Open(grpc.DataPointProcessor request, IServerStreamWriter <grpc.DataPoints> responseStream, ServerCallContext context)
{
DataPointProcessor dataPointProcessor = null;
var id = request.Id.To <DataPointProcessorId>();
void Received(IEnumerable <DataPoint> dataPoints) => Process(responseStream, dataPoints);
try
{
_logger.Information($"Register processor with identifier '{id}'");
dataPointProcessor = new DataPointProcessor(id);
_dataPointProcessors.Register(dataPointProcessor);
dataPointProcessor.Received += Received;
context.CancellationToken.ThrowIfCancellationRequested();
context.CancellationToken.WaitHandle.WaitOne();
}
finally
{
if (dataPointProcessor != null)
{
dataPointProcessor.Received -= Received;
_logger.Information($"Unregister processor with identifier '{id}'");
_dataPointProcessors.Unregister(dataPointProcessor);
}
}
return(Task.CompletedTask);
}
/// <inheritdoc/>
public void Unregister(DataPointProcessor dataPointProcessor)
{
_logger.Information($"Unregistering '{dataPointProcessor.Id}'");
lock (_processors) _processors.Remove(dataPointProcessor);
}
/// <inheritdoc/>
public void Register(DataPointProcessor dataPointProcessor)
{
_logger.Information($"Registering '{dataPointProcessor.Id}'");
lock (_processors) _processors.Add(dataPointProcessor);
}