/**
* Read a particular {@link ConfigurationClassMethod}, registering bean definitions with the
* BeanDefinitionRegistry based on its contents.
*/
private void loadBeanDefinitionsForBeanMethod(ConfigurationClassMethod beanMethod) {
ConfigurationClass configClass = beanMethod.getConfigurationClass();
MethodMetadata metadata = beanMethod.getMetadata();
RootBeanDefinition beanDef = new ConfigurationClassBeanDefinition(configClass);
beanDef.setResource(configClass.getResource());
beanDef.setSource(this.sourceExtractor.extractSource(metadata, configClass.getResource()));
beanDef.setFactoryBeanName(configClass.getBeanName());
beanDef.setUniqueFactoryMethodName(metadata.getMethodName());
beanDef.setAutowireMode(RootBeanDefinition.AUTOWIRE_CONSTRUCTOR);
beanDef.setAttribute(
RequiredAnnotationBeanPostProcessor.SKIP_REQUIRED_CHECK_ATTRIBUTE, Boolean.TRUE);
// consider name and any aliases
Map<String, Object> beanAttributes = metadata.getAnnotationAttributes(Bean.class.getName());
List<String> names =
new ArrayList<String>(Arrays.asList((String[]) beanAttributes.get("name")));
String beanName =
(names.size() > 0 ? names.remove(0) : beanMethod.getMetadata().getMethodName());
for (String alias : names) {
this.registry.registerAlias(beanName, alias);
}
// has this already been overridden (e.g. via XML)?
if (this.registry.containsBeanDefinition(beanName)) {
BeanDefinition existingBeanDef = registry.getBeanDefinition(beanName);
// is the existing bean definition one that was created from a configuration class?
if (!(existingBeanDef instanceof ConfigurationClassBeanDefinition)) {
// no -> then it's an external override, probably XML
// overriding is legal, return immediately
if (logger.isDebugEnabled()) {
logger.debug(
String.format(
"Skipping loading bean definition for %s: a definition for bean "
+ "'%s' already exists. This is likely due to an override in XML.",
beanMethod, beanName));
}
return;
}
}
if (metadata.isAnnotated(Primary.class.getName())) {
beanDef.setPrimary(true);
}
// is this bean to be instantiated lazily?
if (metadata.isAnnotated(Lazy.class.getName())) {
beanDef.setLazyInit(
(Boolean) metadata.getAnnotationAttributes(Lazy.class.getName()).get("value"));
} else if (configClass.getMetadata().isAnnotated(Lazy.class.getName())) {
beanDef.setLazyInit(
(Boolean)
configClass.getMetadata().getAnnotationAttributes(Lazy.class.getName()).get("value"));
}
if (metadata.isAnnotated(DependsOn.class.getName())) {
String[] dependsOn =
(String[]) metadata.getAnnotationAttributes(DependsOn.class.getName()).get("value");
if (dependsOn.length > 0) {
beanDef.setDependsOn(dependsOn);
}
}
Autowire autowire = (Autowire) beanAttributes.get("autowire");
if (autowire.isAutowire()) {
beanDef.setAutowireMode(autowire.value());
}
String initMethodName = (String) beanAttributes.get("initMethod");
if (StringUtils.hasText(initMethodName)) {
beanDef.setInitMethodName(initMethodName);
}
String destroyMethodName = (String) beanAttributes.get("destroyMethod");
if (StringUtils.hasText(destroyMethodName)) {
beanDef.setDestroyMethodName(destroyMethodName);
}
// consider scoping
ScopedProxyMode proxyMode = ScopedProxyMode.NO;
Map<String, Object> scopeAttributes = metadata.getAnnotationAttributes(Scope.class.getName());
if (scopeAttributes != null) {
beanDef.setScope((String) scopeAttributes.get("value"));
proxyMode = (ScopedProxyMode) scopeAttributes.get("proxyMode");
if (proxyMode == ScopedProxyMode.DEFAULT) {
proxyMode = ScopedProxyMode.NO;
}
}
// replace the original bean definition with the target one, if necessary
BeanDefinition beanDefToRegister = beanDef;
if (proxyMode != ScopedProxyMode.NO) {
BeanDefinitionHolder proxyDef =
ScopedProxyCreator.createScopedProxy(
new BeanDefinitionHolder(beanDef, beanName),
this.registry,
proxyMode == ScopedProxyMode.TARGET_CLASS);
beanDefToRegister = proxyDef.getBeanDefinition();
}
if (logger.isDebugEnabled()) {
logger.debug(
String.format(
"Registering bean definition for @Bean method %s.%s()",
configClass.getMetadata().getClassName(), beanName));
}
registry.registerBeanDefinition(beanName, beanDefToRegister);
}
