public static void Main(string[] args)
{
var configuration = GetConfiguration(args);
try
{
var prometheusConfig = configuration.GetSection("prometheusMetrics").Get <PrometheusConfig>();
MetricServer metricServer = null;
if (prometheusConfig.Enabled)
{
metricServer = new MetricServer(port: prometheusConfig.Port);
metricServer.Start();
}
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
ProducerBuilder <Null, string> builder = new ProducerBuilder <Null, string>(configuration.GetSection("producerConf").Get <ProducerConfig>());
builder.SetErrorHandler((_, error) =>
{
Console.WriteLine($"An error ocurred producing the event: {error.Reason}");
if (error.IsFatal)
{
Environment.Exit(-1);
}
});
builder.HandleStatistics(new PrometheusProducerStatisticsHandler(new string[] { "application" }, new string[] { "test-producer-statistics" }));
builder.SetKeySerializer(Serializers.Null);
builder.SetValueSerializer(Serializers.Utf8);
using (var producer = builder.Build())
{
Action <DeliveryReport <Null, string> > handler = r =>
{
if (r.Error.IsError)
{
Console.WriteLine($"Delivery Error: {r.Error.Reason}");
}
else
{
Console.WriteLine($"Delivered message to {r.TopicPartitionOffset}");
}
};
int numMessages = 0;
while (!cancellationTokenSource.IsCancellationRequested)
{
try
{
var dr = producer.ProduceAsync(configuration.GetValue <string>("topic"), new Message <Null, string> {
Value = $"message {numMessages}"
});
Console.WriteLine($"Delivered message {numMessages} : {dr.Result.Value}");
Thread.Sleep(1000);
numMessages++;
}
catch (ProduceException <Null, string> e)
{
Console.WriteLine($"Delivery failed: {e.Error.Reason}");
}
}
Console.WriteLine("Exit requested.");
producer.Flush(TimeSpan.FromSeconds(10));
}
Console.WriteLine("Exit requested. Gracefully exiting...");
}
catch (Exception ex)
{
Console.WriteLine("An error occurred while starting up the test.", ex);
Environment.Exit(-2);
}
}