public async Task KafkaMessagingTest001_PublishConsumeUsingStringMessage_ExpectNoExceptions()
{
this.testLogger.LogDebug("*** KafkaMessagingTest001 ***");
var topic = $"{TestTopic}_Test001_{Guid.NewGuid()}";
AppEventArgs <Customer> evt = this.__getEvent();
var kProducer = new app.common.messaging.simple.KafkaProducer <AppEventArgs <Customer> >(this.loggerFactory);
var producerConfig = new Dictionary <string, object>
{
{ "bootstrap.servers", this.serverAddress }
};
kProducer.Setup(producerConfig);
await kProducer.ProduceAsync(topic, evt);
kProducer.Dispose();
var kConsumer = new app.common.messaging.simple.KafkaConsumer(this.loggerFactory);
var customerConfig = new Dictionary <string, object>
{
{ "bootstrap.servers", this.serverAddress },
{ "auto.commit.interval.ms", 5000 },
{ "auto.offset.reset", "earliest" },
{ "group.id", "test-consumer-group" }
};
var consumeTopics = new List <string>()
{
topic
};
kConsumer.Setup(customerConfig, consumeTopics);
//Consume yield returns a list of messages
foreach (var message in kConsumer.Consume(this.cts.Token))
{
this.testLogger.LogDebug($"Response: Partition:{message.Partition}, Offset:{message.Offset} :: {message.Message}");
var payload = AppEventArgs <Customer> .FromJson(message.Message);
if (payload.id == evt.id)
{
this.testLogger.LogDebug($"Received EventID:{evt.id} from Kafka");
// break;
this.cts.Cancel();
}
}
kConsumer.Dispose();
}
public async Task KafkaMessagingTest002_PublishConsumeBulkMessages_ExpectNoExceptions()
{
this.testLogger.LogDebug("*** KafkaMessagingTest002 ***");
var topic = $"{TestTopic}_Test002_{Guid.NewGuid()}";
var kProducer = new app.common.messaging.simple.KafkaProducer <AppEventArgs <Customer> >(this.loggerFactory);
// Config for fast synchronous write without buffering
var producerConfig = new Dictionary <string, object>
{
{ "bootstrap.servers", this.serverAddress },
{ "retries", 0 },
{ "queue.buffering.max.ms", 0 },
{ "batch.num.messages", 1 },
{ "socket.nagle.disable", true }
};
kProducer.Setup(producerConfig);
// Generate 100 events
var opTimer = Stopwatch.StartNew();
for (int i = 0; i < 100; i++)
{
AppEventArgs <Customer> evt = this.__getEvent();
// We want these events going off as soon as possible
await kProducer.ProduceAsync(topic, evt);
// kProducer.ProduceAsync(topic, evt);
}
opTimer.Stop();
this.testLogger.LogInformation($"Took {opTimer.Elapsed.TotalSeconds} sec to send 100 events");
kProducer.Dispose();
var kConsumer = new app.common.messaging.simple.KafkaConsumer(this.loggerFactory);
var customerConfig = new Dictionary <string, object>
{
{ "bootstrap.servers", this.serverAddress },
{ "auto.commit.interval.ms", 5000 },
{ "auto.offset.reset", "earliest" },
{ "group.id", "test-consumer-group" }
};
var consumeTopics = new List <string>()
{
topic
};
kConsumer.Setup(customerConfig, consumeTopics);
List <AppEventArgs <Customer> > events = new List <AppEventArgs <Customer> >();
//Consume yield returns a list of messages
opTimer = Stopwatch.StartNew();
foreach (var message in kConsumer.Consume(this.cts.Token))
{
this.testLogger.LogTrace(LoggingEvents.Trace, $"Response: Partition:{message.Partition}, Offset:{message.Offset} :: {message.Message}");
events.Add(AppEventArgs <Customer> .FromJson(message.Message));
if (events.Count == 100)
{
opTimer.Stop();
this.testLogger.LogDebug($"Received 1000 events from Kafka");
this.testLogger.LogInformation($"Took {opTimer.Elapsed.TotalSeconds} sec to receive 100 events");
// break;
this.cts.Cancel();
}
}
kConsumer.Dispose();
}