/// <summary>
/// Initialize connections
/// - Kafka Consumer
/// - Reentrancy to InterSystems IRIS
/// </summary>
public override void OnInit()
{
LOGINFO("Initialization started");
var conf = new ConsumerConfig
{
GroupId = "test-consumer-group",
BootstrapServers = SERVERS,
// Note: The AutoOffsetReset property determines the start offset in the event
// there are not yet any committed offsets for the consumer group for the
// topic/partitions of interest. By default, offsets are committed
// automatically, so in this example, consumption will only start from the
// earliest message in the topic 'my-topic' the first time you run the program.
AutoOffsetReset = AutoOffsetReset.Earliest
};
consumer = new ConsumerBuilder <Ignore, string>(conf).Build();
consumer.Subscribe(TOPIC);
if (TargetConfigNames != null)
{
targets = TargetConfigNames.Split(",");
}
iris = GatewayContext.GetIRIS();
LOGINFO("Initialized!");
}
// Write a message that comes from Kafka to a SQL table in IRIS using ObjectScript
public void processMessage(ConsumeResult <Ignore, string> cr)
{
var iris = GatewayContext.GetIRIS();
var test = (IRISObject)iris.ClassMethodObject("Example.Messages", "%New");
test.Set("Body", cr.Message.Value);
test.InvokeVoid("%Save");
}