||This class represents the entry of the issuer of the authorisation token.
||This PolicyFinder can locate a PERMIS policy in one of the ACs retrieved from
the SOA's repository entry.
||This is the implementation of the AuthTokenParser that extracts Roles from
the Attribute Certificates as defined by the Policy.
||This is a simple Policy Finder that can be instantiated from an instance of
an X.509 Attribute Certificate.
||This is a simple extension of RepositoryACPolicyFinder that uses a single
URL to identify a Repository with the policy in it.