@SuppressWarnings("unchecked")
private ApplicationContextInitializer<ConfigurableApplicationContext> loadInitializer(
String className, ConfigurableApplicationContext wac) {
try {
Class<?> initializerClass = ClassUtils.forName(className, wac.getClassLoader());
Class<?> initializerContextClass =
GenericTypeResolver.resolveTypeArgument(
initializerClass, ApplicationContextInitializer.class);
if (initializerContextClass != null) {
Assert.isAssignable(
initializerContextClass,
wac.getClass(),
String.format(
"Could not add context initializer [%s] since its generic parameter [%s] "
+ "is not assignable from the type of application context used by this "
+ "framework servlet [%s]: ",
initializerClass.getName(),
initializerContextClass.getName(),
wac.getClass().getName()));
}
return BeanUtils.instantiateClass(initializerClass, ApplicationContextInitializer.class);
} catch (Exception ex) {
throw new IllegalArgumentException(
String.format(
"Could not instantiate class [%s] specified "
+ "via 'contextInitializerClasses' init-param",
className),
ex);
}
}
@Override
public void initialize(ConfigurableApplicationContext context) {
if (context instanceof DefaultResourceLoader) {
((DefaultResourceLoader) context)
.setClassLoader(new ServiceClassLoader(new WinletClassLoader(context.getClassLoader())));
}
}