/// <summary>
/// Consumes a message on a daemon thread using a blocking receive call
/// (traced with the <see cref="IIncomingMessageReceiveTracer"/> and <see cref="IIncomingMessageProcessTracer"/>)
/// The Dynatrace tag is transported along with the message
/// </summary>
public static void ConsumerDaemonExample()
{
string serverEndpoint = "messageserver.example.com:1234";
string topic = "my-topic";
IMessagingSystemInfo messagingSystemInfo = SampleApplication.OneAgentSdk
.CreateMessagingSystemInfo(MessageSystemVendor.KAFKA, topic, MessageDestinationType.TOPIC, ChannelType.TCP_IP, serverEndpoint);
IIncomingMessageReceiveTracer receiveTracer = SampleApplication.OneAgentSdk.TraceIncomingMessageReceive(messagingSystemInfo);
receiveTracer.Start();
try
{
// blocking call until message is available:
ReceiveResult receiveResult = MyMessagingSystem.ReceiveMessage();
Message message = receiveResult.Message;
IIncomingMessageProcessTracer processTracer = SampleApplication.OneAgentSdk.TraceIncomingMessageProcess(messagingSystemInfo);
// retrieve Dynatrace tag created using the outgoing message tracer to link both sides together:
if (message.Headers.ContainsKey(OneAgentSdkConstants.DYNATRACE_MESSAGE_PROPERTYNAME))
{
processTracer.SetDynatraceByteTag(message.Headers[OneAgentSdkConstants.DYNATRACE_MESSAGE_PROPERTYNAME]);
}
// start processing:
processTracer.Start();
processTracer.SetCorrelationId(message.CorrelationId); // optional
processTracer.SetVendorMessageId(receiveResult.VendorMessageId); // optional
try
{
ProcessMessage(message); // do the work ...
}
catch (Exception e)
{
processTracer.Error(e);
// handle or rethrow
throw e;
}
finally
{
processTracer.End();
}
}
catch (Exception e)
{
receiveTracer.Error(e);
// handle or rethrow
throw e;
}
finally
{
receiveTracer.End();
}
}
/// <summary>
/// Produces a message (traced with the <see cref="IOutgoingMessageTracer"/>) and consumes it
/// (traced with the <see cref="IIncomingMessageReceiveTracer"/> and <see cref="IIncomingMessageProcessTracer"/>)
/// The Dynatrace tag is transported along with the message
/// </summary>
public static void ProducerConsumerExample()
{
string serverEndpoint = "messageserver.example.com:1234";
string topic = "my-topic";
IMessagingSystemInfo messagingSystemInfo = SampleApplication.OneAgentSdk
.CreateMessagingSystemInfo(MessageSystemVendor.KAFKA, topic, MessageDestinationType.TOPIC, ChannelType.TCP_IP, serverEndpoint);
IOutgoingMessageTracer outgoingTracer = SampleApplication.OneAgentSdk.TraceOutgoingMessage(messagingSystemInfo);
outgoingTracer.Start();
try
{
Message message = new Message
{
CorrelationId = "my-correlation-id-1234" // optional, determined by application
};
// transport the Dynatrace tag along with the message to allow the outgoing message tracer to be linked
// together with the message processing tracer on the receiving side
message.Headers[OneAgentSdkConstants.DYNATRACE_MESSAGE_PROPERTYNAME] = outgoingTracer.GetDynatraceByteTag();
SendResult result = MyMessagingSystem.SendMessage(message);
outgoingTracer.SetCorrelationId(message.CorrelationId); // optional
outgoingTracer.SetVendorMessageId(result.VendorMessageId); // optional
}
catch (Exception e)
{
outgoingTracer.Error(e);
// handle or rethrow
throw e;
}
finally
{
outgoingTracer.End();
}
// represents server side processing
Thread server = new Thread(() =>
{
IIncomingMessageReceiveTracer receiveTracer = SampleApplication.OneAgentSdk.TraceIncomingMessageReceive(messagingSystemInfo);
receiveTracer.Start();
try
{
// blocking call until message is available:
ReceiveResult receiveResult = MyMessagingSystem.ReceiveMessage();
Message message = receiveResult.Message;
IIncomingMessageProcessTracer processTracer = SampleApplication.OneAgentSdk.TraceIncomingMessageProcess(messagingSystemInfo);
// retrieve Dynatrace tag created using the outgoing message tracer to link both sides together:
if (message.Headers.ContainsKey(OneAgentSdkConstants.DYNATRACE_MESSAGE_PROPERTYNAME))
{
processTracer.SetDynatraceByteTag(message.Headers[OneAgentSdkConstants.DYNATRACE_MESSAGE_PROPERTYNAME]);
}
// start processing:
processTracer.Start();
processTracer.SetCorrelationId(message.CorrelationId); // optional
processTracer.SetVendorMessageId(receiveResult.VendorMessageId); // optional
try
{
ProcessMessage(message); // do the work ...
}
catch (Exception e)
{
processTracer.Error(e);
// handle or rethrow
throw e;
}
finally
{
processTracer.End();
}
}
catch (Exception e)
{
receiveTracer.Error(e);
// handle or rethrow
throw e;
}
finally
{
receiveTracer.End();
}
});
server.Start();
server.Join();
}
