private void resolveUniqueApplicationConfigBean()

in dubbo-spring-boot-compatible/autoconfigure/src/main/java/org/apache/dubbo/spring/boot/context/event/DubboConfigBeanDefinitionConflictApplicationListener.java [75:100]

19 lines of code
3 McCabe index (conditional complexity)


    private void resolveUniqueApplicationConfigBean(BeanDefinitionRegistry registry, ListableBeanFactory beanFactory) {

        String[] beansNames = beanNamesForTypeIncludingAncestors(beanFactory, ApplicationConfig.class);

        if (beansNames.length < 2) { // If the number of ApplicationConfig beans is less than two, return immediately.
            return;
        }

        Environment environment = beanFactory.getBean(ENVIRONMENT_BEAN_NAME, Environment.class);

        // Remove ApplicationConfig Beans that are configured by "dubbo.application.*"
        Stream.of(beansNames)
                .filter(beansName -> isConfiguredApplicationConfigBeanName(environment, beansName))
                .forEach(registry::removeBeanDefinition);

        beansNames = beanNamesForTypeIncludingAncestors(beanFactory, ApplicationConfig.class);

        if (beansNames.length > 1) {
            throw new IllegalStateException(String.format("There are more than one instances of %s, whose bean definitions : %s",
                    ApplicationConfig.class.getSimpleName(),
                    Stream.of(beansNames)
                            .map(registry::getBeanDefinition)
                            .collect(Collectors.toList()))
            );
        }
    }