code: @Override
  	public Result<Void> updAttribForNS(AuthzTrans trans, HttpServletResponse resp, String ns, String key, String value) {
  		TimeTaken tt = trans.start(NS_UPDATE_ATTRIB + ' ' + ns + ':'+key+':'+value, Env.SUB|Env.ALWAYS);
  		try {
  			Result<?> rp = service.updateNsAttrib(trans,ns,key,value);
  			switch(rp.status) {
  				case OK: 
  					setContentType(resp, keysDF.getOutType());
  					resp.getOutputStream().println();
  					return Result.ok();
  				default:
  					return Result.err(rp);
  			}
  		} catch (Exception e) {
  			trans.error().log(e,IN,NS_UPDATE_ATTRIB);
  			return Result.err(e);
  		} finally {
  			tt.done();
  		}
  
  	}
docs: /* (non-Javadoc)
  @see com.att.authz.facade.AuthzFacade#updAttribForNS(com.att.authz.env.AuthzTrans, javax.servlet.http.HttpServletResponse, java.lang.String, java.lang.String, java.lang.String)