title: In wso2 IS XACML policy how to validate role and its permissions
body: <p>In wso2 identity server how to add custom permission like for a role useroperation associate permissions create,update,delete. How can I create the permissions like this.</p>
  <p>How can use those assigned permissions for validating by using roles and permissions in XACML policy.</p>
  <p>I have created a XACML policy using <code>Standard Policy Editor</code> based on the subject name which is username I am fetching role attribute and I am validating, but how can I validate the permissions assoicated to it using XACML. Is it possible to achieve this usecase in wso2 XACML policy?</p>