springboot-otel-micrometer-jaeger's People
springboot-otel-micrometer-jaeger's Issues
Can you add an example for a ForkJoinPool?
Can you add an example for a ForkJoinPool? What you have so far is tremendously helpful - it's more info than I've found anywhere else on the web including the Micrometer /Spring Boot 3.1 migration guide. I've yet to find an example for a ForkJoinPool.
My initial attempt looks something like this (using io.micrometer:context-propagation:1.0.3
):
public class MicrometerWrappedForkJoinWorkerThreadFactory implements ForkJoinWorkerThreadFactory {
@Override
public ForkJoinWorkerThread newThread(final ForkJoinPool pool) {
final ContextRegistry registry = ContextRegistry.getInstance();
// Register thread local accessors (you can use SPI too)
registry.registerThreadLocalAccessor(new ObservationThreadLocalAccessor());
// When you set a thread local value...
// ObservationThreadLocalHolder.setValue("hello");
// ... we can capture it using ContextSnapshot
final ContextSnapshot snapshot =
ContextSnapshotFactory.builder().contextRegistry(registry).build().captureAll();
final MicrometerWrappedForkJoinWorkerThread micrometerWrappedForkJoinWorkerThread =
new MicrometerWrappedForkJoinWorkerThread(pool);
snapshot.wrap(micrometerWrappedForkJoinWorkerThread);
return micrometerWrappedForkJoinWorkerThread;
}
public class MicrometerWrappedForkJoinWorkerThread extends ForkJoinWorkerThread {
/**
* Creates a ForkJoinWorkerThread operating in the given pool.
*
* @param pool the pool this thread works in
* @throws NullPointerException if pool is null
*/
protected MicrometerWrappedForkJoinWorkerThread(final ForkJoinPool pool) {
super(pool);
}
}
}
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