/**
* Register the given bean definition with the given bean factory.
*
* @param bdHolder the bean definition including name and aliases
* @param beanFactory the bean factory to register with
* @throws BeansException if registration failed
*/
public static void registerBeanDefinition(
BeanDefinitionHolder bdHolder, BeanDefinitionRegistry beanFactory) throws BeansException {
// Register bean definition under primary name.
beanFactory.registerBeanDefinition(bdHolder.getBeanName(), bdHolder.getBeanDefinition());
// Register aliases for bean name, if any.
if (bdHolder.getAliases() != null) {
for (int i = 0; i < bdHolder.getAliases().length; i++) {
beanFactory.registerAlias(bdHolder.getBeanName(), bdHolder.getAliases()[i]);
}
}
}
/**
* Generate a bean name for the given bean definition, unique within the given bean factory.
*
* @param beanDefinition the bean definition to generate a bean name for
* @param beanFactory the bean factory that the definition is going to be registered with (to
* check for existing bean names)
* @param isInnerBean whether the given bean definition will be registered as inner bean or as
* top-level bean (allowing for special name generation for inner beans vs. top-level beans)
* @return the bean name to use
* @throws BeanDefinitionStoreException if no unique name can be generated for the given bean
* definition
*/
public static String generateBeanName(
AbstractBeanDefinition beanDefinition,
BeanDefinitionRegistry beanFactory,
boolean isInnerBean)
throws BeanDefinitionStoreException {
String generatedId = beanDefinition.getBeanClassName();
if (generatedId == null) {
if (beanDefinition instanceof ChildBeanDefinition) {
generatedId = ((ChildBeanDefinition) beanDefinition).getParentName() + "$child";
} else if (beanDefinition.getFactoryBeanName() != null) {
generatedId = beanDefinition.getFactoryBeanName() + "$created";
}
}
if (!StringUtils.hasText(generatedId)) {
throw new BeanDefinitionStoreException(
beanDefinition.getResourceDescription(),
"",
"Unnamed bean definition specifies neither 'class' nor 'parent' nor 'factory-bean'"
+ " - can't generate bean name");
}
String id = generatedId;
if (isInnerBean) {
// Inner bean: generate identity hashcode suffix.
id =
generatedId
+ GENERATED_BEAN_NAME_SEPARATOR
+ ObjectUtils.getIdentityHexString(beanDefinition);
} else {
// Top-level bean: use plain class name. If not already unique,
// add counter - increasing the counter until the name is unique.
int counter = 0;
while (beanFactory.containsBeanDefinition(id)) {
counter++;
id = generatedId + GENERATED_BEAN_NAME_SEPARATOR + counter;
}
}
return id;
}
