public async Task OnCommentaryActionAsync(CommentaryNotification info)
{
_commentaryActionProducer.Produce(TOPIC, new Message <Null, CommentaryNotification>()
{
Value = info
});
}
public async Task OnCommentaryActionAsync(CommentaryNotification info)
{
var currentDayStatistic = await _dbAccess.GetBlogDayStatisticAsync(DateTime.UtcNow.Date);
var countDelta = info.Action switch
{
CommentaryAction.CREATED => 1,
CommentaryAction.DELETED => - 1,
_ => throw new NotSupportedException()
};
currentDayStatistic.CommentariesCount += countDelta;
#warning save changes should not be here
await _db.SaveChangesAsync();
}
async Task dispatcherLoopAsync()
{
await ThreadingUtils.ContinueAtDedicatedThread();
while (true)
{
try
{
var message = _consumer.Consume();
var scope = _scopeBuilder
.CreateScope();
var controller = scope.ServiceProvider
.GetRequiredService <IStatisticServiceAPI>();
var parameter = message.Value;
var handler = getHandler();
executeAsync();
/////////////////////////////////////////////
Func <Task> getHandler()
{
return(message.Value switch
{
CommentaryNotification cn => () => controller.OnCommentaryActionAsync(cn),
PostNotification pn => () => controller.OnPostActionAsync(pn),
SeenNotification sn => () => controller.OnSeenAsync(sn),
UserNotification un => () => controller.OnUserActionAsync(un),
_ => throw new NotSupportedException()
});
}
async void executeAsync()
{
using (scope)
{
await ThreadingUtils.ContinueAtThreadPull();
await handler();
_logger.LogInformation($"Consumed message '{message.Value}' at: '{message.TopicPartitionOffset}'.");
}
}
}
