class DBService implements RolesProvider {

    String getPrincipalName(ResourceContext ctx) {
        if (ctx == null) {
            return null;
        }
        Principal principal = ((RsrcCtxWrapper) ctx).principal();
        if (principal == null) {
            return null;
        }
        return principal.getFullName();
    }

    public  DBService(ObjectStore store, AuditLogger auditLogger, ZMSConfig zmsConfig, AuditReferenceValidator auditReferenceValidator);

}