public override async Task <StateResp> State(StateReq request, ServerCallContext context)
{
var resetSource = new TaskCompletionSource <Value>();
var options = request.Options;
var name = options.Name;
var partition = options.Partition ?? string.Empty;
var envelope = new CallbackEnvelope(OnMessage);
_queue.Publish(new ProjectionManagementMessage.Command.GetState(envelope, name, partition));
return(new StateResp {
State = await resetSource.Task.ConfigureAwait(false)
});
void OnMessage(Message message)
{
if (!(message is ProjectionManagementMessage.ProjectionState result))
{
resetSource.TrySetException(UnknownMessage <ProjectionManagementMessage.ProjectionState>(message));
return;
}
var document = JsonDocument.Parse(result.State);
resetSource.TrySetResult(GetProtoValue(document.RootElement));
}
}
public override async Task <StateResp> State(StateReq request, ServerCallContext context)
{
var user = context.GetHttpContext().User;
if (!await _authorizationProvider.CheckAccessAsync(user, StateOperation, context.CancellationToken)
.ConfigureAwait(false))
{
throw AccessDenied();
}
var resultSource = new TaskCompletionSource <Value>();
var options = request.Options;
var name = options.Name;
var partition = options.Partition ?? string.Empty;
var envelope = new CallbackEnvelope(OnMessage);
_queue.Publish(new ProjectionManagementMessage.Command.GetState(envelope, name, partition));
return(new StateResp {
State = await resultSource.Task.ConfigureAwait(false)
});
void OnMessage(Message message)
{
if (!(message is ProjectionManagementMessage.ProjectionState result))
{
resultSource.TrySetException(UnknownMessage <ProjectionManagementMessage.ProjectionState>(message));
return;
}
if (string.IsNullOrEmpty(result.State))
{
resultSource.TrySetResult(new Value {
StructValue = new Struct()
});
return;
}
var document = JsonDocument.Parse(result.State);
resultSource.TrySetResult(GetProtoValue(document.RootElement));
}
}
