/**
* If the bean factory is a DefaultListableBeanFactory then it can serialize scoped
* beans and deserialize them in another context (even in another JVM), as long as the
* ids of the bean factories match. This method sets up the serialization id to be
* either the id provided to the scope instance, or if that is null, a hash of all the
* bean names.
*
* @param beanFactory the bean factory to configure
*/
private void setSerializationId(ConfigurableListableBeanFactory beanFactory) {
if (beanFactory instanceof DefaultListableBeanFactory) {
String id = this.id;
if (id == null) {
List<String> list = new ArrayList<>(
Arrays.asList(beanFactory.getBeanDefinitionNames()));
Collections.sort(list);
String names = list.toString();
logger.debug("Generating bean factory id from names: " + names);
id = UUID.nameUUIDFromBytes(names.getBytes()).toString();
}
logger.info("BeanFactory id=" + id);
((DefaultListableBeanFactory) beanFactory).setSerializationId(id);
} else {
logger.warn("BeanFactory was not a DefaultListableBeanFactory, so RefreshScope beans "
+ "cannot be serialized reliably and passed to a remote JVM.");
}
}
GenericScope.java 文件源码
java
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