LogbackRuntimeHints Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/logging/logback/LogbackRuntimeHints.java lines 37–73

class LogbackRuntimeHints implements RuntimeHintsRegistrar {

	@Override
	public void registerHints(RuntimeHints hints, @Nullable ClassLoader classLoader) {
		if (!ClassUtils.isPresent("ch.qos.logback.classic.LoggerContext", classLoader)) {
			return;
		}
		ReflectionHints reflection = hints.reflection();
		registerHintsForLogbackLoggingSystemTypeChecks(reflection, classLoader);
		registerHintsForBuiltInLogbackConverters(reflection);
		registerHintsForSpringBootConverters(reflection);
	}

	private void registerHintsForLogbackLoggingSystemTypeChecks(ReflectionHints reflection,
			@Nullable ClassLoader classLoader) {
		reflection.registerType(LoggerContext.class);
		reflection.registerTypeIfPresent(classLoader, "org.slf4j.bridge.SLF4JBridgeHandler", (typeHint) -> {
		});
	}

	private void registerHintsForBuiltInLogbackConverters(ReflectionHints reflection) {
		registerForPublicConstructorInvocation(reflection, DateTokenConverter.class, IntegerTokenConverter.class,
				SyslogStartConverter.class);
	}

	private void registerHintsForSpringBootConverters(ReflectionHints reflection) {
		registerForPublicConstructorInvocation(reflection, ColorConverter.class,
				EnclosedInSquareBracketsConverter.class, ExtendedWhitespaceThrowableProxyConverter.class,
				WhitespaceThrowableProxyConverter.class, CorrelationIdConverter.class);
	}

	private void registerForPublicConstructorInvocation(ReflectionHints reflection, Class<?>... classes) {
		reflection.registerTypes(TypeReference.listOf(classes),
				(hint) -> hint.withMembers(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS));
	}

}