public bool HandleOrderCanceledEvent(OrderCanceledEvent orderCanceledEvent)
{
Console.WriteLine("Handling order canceled event");
var result = this.orderRepository.AddActivity(new OrderActivity
{
OccuredOn = (long)orderCanceledEvent.CreatedOn,
ActivityId = orderCanceledEvent.EventId,
UserId = orderCanceledEvent.UserId,
OrderId = orderCanceledEvent.OrderId,
ActivityType = ActivityType.Canceled
});
return(result != null);
}
public void Consume()
{
Task.Run(() =>
{
Console.WriteLine($"Starting Kafka subscription to {topic}");
using (var consumer = new Consumer <Ignore, string>(config, null, new StringDeserializer(Encoding.UTF8)))
{
consumer.OnError += (_, error) =>
Console.WriteLine($"Error: {error}");
consumer.OnConsumeError += (_, error) =>
Console.WriteLine($"Consume Error: {error}");
// consumer.Assign(new List<TopicPartitionOffset> { new TopicPartitionOffset(topic, 0, 0) });
consumer.Subscribe(new[] { topic });
while (true)
{
Message <Ignore, string> msg;
if (consumer.Consume(out msg, TimeSpan.FromSeconds(1)))
{
Console.WriteLine($"Topic: {msg.Topic} Partition: {msg.Partition} Offset: {msg.Offset} {msg.Value}");
string rawJson = msg.Value;
try
{
OrderCanceledEvent evt = JsonConvert.DeserializeObject <OrderCanceledEvent>(rawJson);
eventProcessor.HandleOrderCanceledEvent(evt);
var committedOffsets = consumer.CommitAsync(msg).Result;
if (committedOffsets.Error.HasError)
{
Console.WriteLine($"Failed to commit offsets : {committedOffsets.Error.Reason}");
}
}
catch (Exception ex)
{
Console.WriteLine(ex.StackTrace);
Console.WriteLine($"Failed to handle order activity event : ${ex.ToString()}");
}
}
}
}
});
}
