public static async Task PublishEventSystemPerformance(LocalSystemPerformance input, SchemaRegistryConfig schemaRegistryConfig, ClientConfig kafkaConfig, string[] topics)
{
using (var schemaRegistry = new CachedSchemaRegistryClient(schemaRegistryConfig))
{
//using (var producer = new Producer<string, string>(config, new StringSerializer(Encoding.UTF8), new StringSerializer(Encoding.UTF8)))
// Produce events to the topic
var producer = new ProducerBuilder <string, LocalSystemPerformance>(kafkaConfig)
.SetValueSerializer(new JsonSerializer <LocalSystemPerformance>(schemaRegistry, new JsonSerializerConfig {
BufferBytes = 100
}))
.Build();
var localMessage = new Message <string, LocalSystemPerformance>();
localMessage.Key = "LocalSystemPerformance";
localMessage.Value = input;
// Synchronous producer, does not work with Json serialisation
//producer.Produce(topics[0], localMessage, SyncHandler);
// Create asynchronous task (and wait for it)
var delivery = producer.ProduceAsync(topics[1], localMessage);
await delivery.ContinueWith(AsyncHandlerLocalSystemPerformance);
producer.Flush(TimeSpan.FromSeconds(10));
}
return;
}
static async Task Main()
{
// Setting up the configuration for the Kafka client and Schema registry, saved in a local file
GlobalParameters.clientConfig = await ConfluentHelper.LoadKafkaConfiguration(@"C:\Github\confluent-configuration.txt", null);
GlobalParameters.schemaRegistryConfig = await ConfluentHelper.LoadSchemaRegistryConfiguration(@"C:\Github\schemaregistry-configuration.txt");
// Clear topic, if existing (reset environment)
await ConfluentHelper.DeleteTopic(GlobalParameters.topics[0], GlobalParameters.clientConfig);
// Create topic, if not existing yet
await ConfluentHelper.CreateTopicIfNotExists(GlobalParameters.topics[0], 1, 3, GlobalParameters.clientConfig);
await ConfluentHelper.CreateTopicIfNotExists(GlobalParameters.topics[1], 1, 3, GlobalParameters.clientConfig);
// Start a file watcher to monitor input directory for mapping Json files
// Event handles on file detection trigger the publishing actions
WatchForFiles(AppDomain.CurrentDomain.BaseDirectory + @"\examples-publication");
for (int i = 0; i < 100; i++)
{
var bla = new LocalSystemPerformance();
await PublishEventSystemPerformance(bla, GlobalParameters.schemaRegistryConfig, GlobalParameters.clientConfig, GlobalParameters.topics);
}
// Start waiting until Escape is pressed
Console.WriteLine();
Console.WriteLine("Press ESC to quit.");
do
{
while (!Console.KeyAvailable)
{
// Wait for anything to happen in the designated directory for the file watcher
}
} while (Console.ReadKey(true).Key != ConsoleKey.Escape);
// END OF APPLICATION
}
