EventPublisher Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/builder/ParentContextApplicationContextInitializer.java lines 63–81

	private static final class EventPublisher implements ApplicationListener<ContextRefreshedEvent>, Ordered {

		private static final EventPublisher INSTANCE = new EventPublisher();

		@Override
		public int getOrder() {
			return Ordered.HIGHEST_PRECEDENCE;
		}

		@Override
		public void onApplicationEvent(ContextRefreshedEvent event) {
			ApplicationContext context = event.getApplicationContext();
			if (context instanceof ConfigurableApplicationContext configurableApplicationContext
					&& context == event.getSource()) {
				context.publishEvent(new ParentContextAvailableEvent(configurableApplicationContext));
			}
		}

	}