FactoryAwareOrderSourceProvider Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java lines 1843–1874

	private static class FactoryAwareOrderSourceProvider implements OrderSourceProvider {

		private final ConfigurableBeanFactory beanFactory;

		private final Map<?, String> instancesToBeanNames;

		FactoryAwareOrderSourceProvider(ConfigurableBeanFactory beanFactory, Map<?, String> instancesToBeanNames) {
			this.beanFactory = beanFactory;
			this.instancesToBeanNames = instancesToBeanNames;
		}

		@Override
		public @Nullable Object getOrderSource(Object obj) {
			String beanName = this.instancesToBeanNames.get(obj);
			return (beanName != null) ? getOrderSource(beanName, obj.getClass()) : null;
		}

		private @Nullable Object getOrderSource(String beanName, Class<?> instanceType) {
			try {
				RootBeanDefinition beanDefinition = (RootBeanDefinition) this.beanFactory
					.getMergedBeanDefinition(beanName);
				Method factoryMethod = beanDefinition.getResolvedFactoryMethod();
				Class<?> targetType = beanDefinition.getTargetType();
				targetType = (targetType != instanceType) ? targetType : null;
				return Stream.of(factoryMethod, targetType).filter(Objects::nonNull).toArray();
			}
			catch (NoSuchBeanDefinitionException ex) {
				return null;
			}
		}

	}