Cannot get cookies from FilterRequestContext

[JianbaoTao]

The current FilterRequestContext interface doesn't offer an easy way to access cookies of the current request. This causes trouble if someone needs to implement an authentication filter based on cookies. For example, suppose I have an annotation @AuthRequired and it is applied to some resource methods (eg, all create methods) to indicate that these methods require authentication. It is natural to use a filter to support this kind of use case. However, if the authentication is cookie based, which is still common nowadays, then current FilterRequestContext interface is troublesome because it doesn't provide easy cookie access. One may argue that I could use the RestFilter interface. True, RestFilter interface allows you to access cookies easily. However, it doesn't give you access to the requested java method so that you can check if it is annotated with @AuthRequired. It would be much simpler if FilterRequestContext can allow cookie access.

[volezheng]

Is the following a workaround for this issue?
Object value = requestContext.getRequestContextLocalAttrs().get("httpCookies");