Java 类javax.annotation.ManagedBean 实例源码

/**
 * Binds all classes annotated with ManagedBean in the given package.
 *
 * @param packageName - the name of the package to search in
 */
private void bindAllManagedBeans(String packageName) {
  Iterable<Class<?>> managedBeanClasses =
      new Reflections(packageName).getTypesAnnotatedWith(ManagedBean.class);

  for (Class<?> managedBeanClass : managedBeanClasses) {
    bind(managedBeanClass).to(managedBeanClass);
  }
}

private SessionType getSessionType(final Class<?> clazz) {
    if (clazz.isAnnotationPresent(Stateful.class)) {
        return SessionType.STATEFUL;
    }
    if (clazz.isAnnotationPresent(Stateless.class)) {
        return SessionType.STATELESS;
    }
    if (clazz.isAnnotationPresent(Singleton.class)) {
        return SessionType.SINGLETON;
    }
    if (clazz.isAnnotationPresent(ManagedBean.class)) {
        return SessionType.MANAGED;
    }
    return null;
}

private boolean isIgnoredReferenceType(final String typeName, final ClassLoader loader) {
    if (ignoredReferenceTypes.contains(typeName)) {
        return true;
    } else if (loader != null) {
        try {
            final Class<?> type = loader.loadClass(typeName);
            return type.isAnnotationPresent(ManagedBean.class);
        } catch (final ClassNotFoundException e) {
            // ignore
        }
    }
    return false;
}

public void updateContext(Collection<Class> classes) {
    if (beanFactory != null) {
        boolean needToRefreshRemotingContext = false;
        for (Class clazz : classes) {
            Service serviceAnnotation = (Service) clazz.getAnnotation(Service.class);
            ManagedBean managedBeanAnnotation = (ManagedBean) clazz.getAnnotation(ManagedBean.class);
            Component componentAnnotation = (Component) clazz.getAnnotation(Component.class);
            Controller controllerAnnotation = (Controller) clazz.getAnnotation(Controller.class);

            String beanName = null;
            if (serviceAnnotation != null) {
                beanName = serviceAnnotation.value();
            } else if (managedBeanAnnotation != null) {
                beanName = managedBeanAnnotation.value();
            } else if (componentAnnotation != null) {
                beanName = componentAnnotation.value();
            } else if (controllerAnnotation != null) {
                beanName = controllerAnnotation.value();
            }

            if (StringUtils.isNotBlank(beanName)) {
                GenericBeanDefinition beanDefinition = new GenericBeanDefinition();
                beanDefinition.setBeanClass(clazz);
                Scope scope = (Scope) clazz.getAnnotation(Scope.class);
                if (scope != null) {
                    beanDefinition.setScope(scope.value());
                }

                beanFactory.registerBeanDefinition(beanName, beanDefinition);
            }

            if (StringUtils.isNotBlank(beanName)) {
                needToRefreshRemotingContext = true;
            }
        }

        if (needToRefreshRemotingContext) {
            ApplicationContext remotingContext = RemotingContextHolder.getRemotingApplicationContext();
            if (remotingContext != null && remotingContext instanceof ConfigurableApplicationContext) {
                ((ConfigurableApplicationContext) remotingContext).refresh();
            }
        }
    }
}

private String getEjbName(final ManagedBean managed, final Class<?> beanClass) {
    return managed.value().isEmpty() ? beanClass.getSimpleName() : managed.value();
}

private static boolean isEJB(final Class<?> clazz) {
    return clazz.isAnnotationPresent(Stateless.class)
        || clazz.isAnnotationPresent(Singleton.class)
        || clazz.isAnnotationPresent(ManagedBean.class)  // what a weird idea!
        || clazz.isAnnotationPresent(Stateful.class); // what another weird idea!
}