Package org.axonframework.extension.springboot.autoconfig

Class TracingAutoConfiguration

java.lang.Object

org.axonframework.extension.springboot.autoconfig.TracingAutoConfiguration

@AutoConfiguration
@ConditionalOnClass(SpanFactory.class)
@ConditionalOnProperty(prefix="axon.tracing",
                       name="enabled",
                       havingValue="true",
                       matchIfMissing=true)
@EnableConfigurationProperties(TracingProperties.class)
public class TracingAutoConfiguration
extends Object

Autoconfiguration translating the axon.tracing.* properties into the framework's native tracing configuration.

This layer is deliberately thin: it registers the *TracingSettings components derived from TracingProperties (via registerIfNotPresent, so a user-defined settings bean or component always wins). Everything else - the built-in attribute providers, their toggles, and the tracing decorators - is wired natively by the ServiceLoader-discovered enhancers of the framework modules, driven by these settings.

The SpanFactory is optional and contributed by a tracing backend (for example an OpenTelemetry-backed SpanFactory registered by its own autoconfiguration). When no factory component is present, component decorators are not installed. The whole configuration backs off when axon.tracing.enabled is set to false, in which case no settings are registered.

Since:

4.6.0

Author:

Mateusz Nowak, Mitchell Herrijgers

Constructor Summary

Constructors

Constructor	Description
TracingAutoConfiguration()

Method Summary

Modifier and Type	Method	Description
ConfigurationEnhancer	tracingConfigurationEnhancer(org.springframework.beans.factory.ObjectProvider<SpanAttributesProvider> customProviders, TracingProperties properties)	Constructs a ConfigurationEnhancer translating the axon.tracing.* properties into the tracing settings components.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TracingAutoConfiguration

public TracingAutoConfiguration()

Method Details

tracingConfigurationEnhancer

@Bean
public ConfigurationEnhancer tracingConfigurationEnhancer(org.springframework.beans.factory.ObjectProvider<SpanAttributesProvider> customProviders,
 TracingProperties properties)

Constructs a ConfigurationEnhancer translating the axon.tracing.* properties into the tracing settings components.

Settings are registered with registerIfNotPresent: a user-defined settings bean (or an explicitly registered component) takes precedence over the property translation, which in turn takes precedence over the framework modules' native enabledByDefault() defaults (registered by enhancers running at maximal order).

Parameters:

customProviders - the Spring-managed SpanAttributesProvider instances available to tracing

properties - the bound TracingProperties

Returns:

a ConfigurationEnhancer registering the tracing settings with the framework