publish(String body)
{
var config = new ProducerConfig {
BootstrapServers = "localhost:9092"
};
Console.WriteLine("Before Publish:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
string somestring = body;//JsonSerializer.Serialize(some);
using (var p = new ProducerBuilder <string, string>(config).Build())
{
try
{
var headers = new Headers();
headers.Add("CID", new byte[] { 154 });
headers.Add("Partition", new byte[] { 1 });
var dr = await p.ProduceAsync("reply-some1", new Message <string, string> {
Key = "uid1", Value = somestring, Headers = headers
});
Console.WriteLine("After Publish:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
}
catch (ProduceException <Null, string> e)
{
Console.WriteLine($"Delivery failed: {e.Error.Reason}");
}
}
}
public void Conversion()
{
// check is to millisecond accuracy.
var ts = new DateTime(2012, 5, 6, 12, 4, 3, 220, DateTimeKind.Utc);
var unixTime = Timestamp.DateTimeToUnixTimestampMs(ts);
var ts2 = Timestamp.UnixTimestampMsToDateTime(unixTime);
Assert.Equal(ts, ts2);
Assert.Equal(ts2.Kind, DateTimeKind.Utc);
}
public void Rounding()
{
// check is to millisecond accuracy, rounding down the value
var dateTimeAfterEpoch = new DateTime(2012, 5, 6, 12, 4, 3, 220, DateTimeKind.Utc);
var dateTimeBeforeEpoch = new DateTime(1950, 5, 6, 12, 4, 3, 220, DateTimeKind.Utc);
foreach (var datetime in new[] { dateTimeAfterEpoch, dateTimeBeforeEpoch })
{
var unixTime1 = Timestamp.DateTimeToUnixTimestampMs(datetime.AddTicks(1));
var unixTime2 = Timestamp.DateTimeToUnixTimestampMs(datetime.AddTicks(TimeSpan.TicksPerMillisecond - 1));
var unixTime3 = Timestamp.DateTimeToUnixTimestampMs(datetime.AddTicks(TimeSpan.TicksPerMillisecond));
var unixTime4 = Timestamp.DateTimeToUnixTimestampMs(datetime.AddTicks(-1));
var expectedUnixTime = Timestamp.DateTimeToUnixTimestampMs(datetime);
Assert.Equal(expectedUnixTime, unixTime1);
Assert.Equal(expectedUnixTime, unixTime2);
Assert.Equal(expectedUnixTime + 1, unixTime3);
Assert.Equal(expectedUnixTime - 1, unixTime4);
}
}
public Message(string topic, int partition, long offset, string key, T val, DateTime creationTime, Error error)
: base(topic, partition, offset, key, val, new Timestamp(Timestamp.DateTimeToUnixTimestampMs(creationTime), TimestampType.NotAvailable), new Confluent.Kafka.Error(error))
{
}
public void UnixTimeEpoch()
{
Assert.Equal(0, Timestamp.DateTimeToUnixTimestampMs(Timestamp.UnixTimeEpoch));
Assert.Equal(DateTimeKind.Utc, Timestamp.UnixTimeEpoch.Kind);
}
public async Task <JsonElement?> postTransactionAsync([FromBody] JsonElement body)
{
//The reply topic name
string topicName = "reply-some1";
//Topic creation with AdminClient
Console.WriteLine("Create Topic Before:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
await createTopic(topicName);
Console.WriteLine("Create Topic After:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
//Publish to the topic
await publish(body.ToString());
//Consumer config to read from Reply topic
var conf = new ConsumerConfig
{
GroupId = "some",
BootstrapServers = "localhost:9092",
AutoOffsetReset = AutoOffsetReset.Earliest,
//EnableAutoCommit = false,
SessionTimeoutMs = 6000,
QueuedMinMessages = 1000000
};
//Read from the reply topic
var consumer = new ConsumerBuilder <Ignore, string>(conf).Build();
Console.WriteLine("kafka subscribe Topic: {0}, at: {1}", "transactions", DateTime.Now);
Console.WriteLine("Before Subscribe:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
consumer.Assign(new List <TopicPartitionOffset>()
{
new TopicPartitionOffset(topicName, 0, 0)
});
CancellationTokenSource cts = new CancellationTokenSource();
cts.CancelAfter(10000);
try
{
bool flag = true;
while (flag)
{
Console.WriteLine("Cosume message at: {0}", DateTime.Now);
var consumedMessage = consumer.Consume(cts.Token);
consumer.Commit(consumedMessage);
flag = false;
Console.WriteLine("After Consume:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
}
}
catch (Exception e)
{
Console.WriteLine("Failed While Consuming topic transaction-posted Aggregator Request and Exception: {0} at {1}", e, DateTime.Now);
Console.WriteLine("Failed While Consumiong Aggregator Request: " + e.Message);
//consumer.Close();
}
//Once the message is read, use Admin client to delete the randomly generate topic
Console.WriteLine("Delete Topic Before:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
await deleteTopic(topicName);
Console.WriteLine("Delete Topic After:" + Timestamp.DateTimeToUnixTimestampMs(DateTime.UtcNow));
return(body);
}
