Auto-configure EventLoggerProvider #11623
Description
Is your feature request related to a problem? Please describe.
We're looking to use the Events API but currently have to build an EventLogger manually. It's error-prone getting the manual set-up to use all the auto-configuration that we're used to the java agent doing for us. For example, our attempt is:
<dependency>
<groupId>io.opentelemetry</groupId>
<artifactId>opentelemetry-api-incubator</artifactId>
</dependency>
<dependency>
<groupId>io.opentelemetry</groupId>
<artifactId>opentelemetry-sdk-extension-autoconfigure</artifactId>
<version>${opentelemetry.version}</version>
</dependency>
<dependency>
<groupId>io.opentelemetry</groupId>
<artifactId>opentelemetry-sdk-extension-autoconfigure-spi</artifactId>
<version>${opentelemetry.version}</version>
</dependency>
<dependency>
<groupId>io.opentelemetry.instrumentation</groupId>
<artifactId>opentelemetry-resources</artifactId>
<version>${opentelemetry.javaagent.version}-alpha</version>
</dependency>
<dependency>
<groupId>io.opentelemetry</groupId>
<artifactId>opentelemetry-exporter-otlp</artifactId>
<version>${opentelemetry.version}</version>
</dependency>
...
@Bean
EventLogger otelEventLogger() {
var autoOtelSdk = AutoConfiguredOpenTelemetrySdk.builder().build();
var otelConfig = AutoConfigureUtil.getConfig(autoOtelSdk);
if (otelConfig == null) {
logger.info(
"No OTEL ConfigProperties available for EventLogger. Using empty configuration instead");
otelConfig = DefaultConfigProperties.create(new HashMap<>());
}
Resource resource = Resource.getDefault();
ServiceLoader<ResourceProvider> serviceLoader = ServiceLoader.load(ResourceProvider.class);
for (ResourceProvider provider : serviceLoader) {
Resource provided = provider.createResource(otelConfig);
resource = resource.merge(provided);
}
OtlpGrpcLogRecordExporter exporter =
OtlpGrpcLogRecordExporter.builder()
.setRetryPolicy(
RetryPolicy.builder()
.setMaxAttempts(5)
.setMaxBackoff(Duration.ofSeconds(3L))
.build())
.build();
BatchLogRecordProcessor processor =
BatchLogRecordProcessor.builder(exporter)
.setMeterProvider(GlobalOpenTelemetry.getMeterProvider())
.build();
SdkLoggerProvider loggerProvider =
SdkLoggerProvider.builder().setResource(resource).addLogRecordProcessor(processor).build();
EventLoggerProvider eventLoggerProvider = SdkEventLoggerProvider.create(loggerProvider);
return eventLoggerProvider.eventLoggerBuilder("com.demo").build();
}
Describe the solution you'd like
Have the javaagent auto-configure the EventLoggerProvider and expose it for applications.
@jack-berg had a suggestion for how to do this: https://cloud-native.slack.com/archives/C014L2KCTE3/p1718657558881159?thread_ts=1718293157.542669&cid=C014L2KCTE3
Describe alternatives you've considered
- Agent extension?
- Manual set-up
Additional context
Any guesses if packaging our manual set-up in an agent extension would work as a temporary solution? Or would the call GlobalEventLoggerProvider.set happen using a different class loader than what's available to the application?