Hands-On Enterprise Java Microservices with Eclipse MicroProfile

Explicit instrumentation

Sometimes, the automatic instrumentation does not capture all critical timing information and, therefore, additional trace points are needed. For example, we would like to trace an invocation of a business layer or initialize third-party instrumentation provided by the OpenTracing project (https://github.com/opentracing-contrib).

The explicit instrumentation can be done in three ways:

• Add the @Traced annotation on Context and Dependency Injection (CDI) beans.
• Inject the tracer and create spans manually.
• Initialize third-party instrumentation. The initialization of external instrumentation depends on its own initialization requirements. MicroProfile just has to provide a tracer instance, which is covered in the previous ...