JSON profile for policies

[cdanger]

Define a JSON format for XACML policies (Policy/PolicySet).

N.B.: a JSON schema for policies is already defined as part of AuthzForce Project as well as for the Request/Response, based on the JSON Profile of XACML. (These Request and Response schemas have been reused in the draft GEOXACML 3.0 JSON PROFILE.)

Should this be integrated into a next version of the existing JSON Profile for Requests/Responses?
Instead of making a new Profile from scratch.

[cdanger]

Suggestion: wait for the new XACML 4.0 schema (proposal) to be finalized before this, as significant changes to the core schema are being discussed in several issues (e.g. #11 ). In the end, the JSON schema to be proposed here should be aligned with the proposed XACML 4.0 core schema.

[humantypo]

Agreed. I've been playing around with porting some of the current proposals to JSON and I think there are some structural decisions that we are going to need to walk through once v4 becomes the primary focus (and there is an opportunity to potentially express things in a way that is more of a "middle ground" between the semantics of each).