ProxyFactory.java 文件源码

public ConstructionProxy<T> create() throws ErrorsException {
  if (interceptors.isEmpty()) {
    return new DefaultConstructionProxyFactory<T>(injectionPoint).create();
  }

  @SuppressWarnings("unchecked")
  Class<? extends Callback>[] callbackTypes = new Class[callbacks.length];
  for (int i = 0; i < callbacks.length; i++) {
    if (callbacks[i] == net.sf.cglib.proxy.NoOp.INSTANCE) {
      callbackTypes[i] = net.sf.cglib.proxy.NoOp.class;
    } else {
      callbackTypes[i] = net.sf.cglib.proxy.MethodInterceptor.class;
    }
  }

  // Create the proxied class. We're careful to ensure that all enhancer state is not-specific
  // to this injector. Otherwise, the proxies for each injector will waste PermGen memory
  try {
  Enhancer enhancer = BytecodeGen.newEnhancer(declaringClass, visibility);
  enhancer.setCallbackFilter(new IndicesCallbackFilter(methods));
  enhancer.setCallbackTypes(callbackTypes);
  return new ProxyConstructor<T>(enhancer, injectionPoint, callbacks, interceptors);
  } catch (Throwable e) {
    throw new Errors().errorEnhancingClass(declaringClass, e).toException();
  }
}