%%------------------------------------------------------------------------------
%% Licensed to the Apache Software Foundation (ASF) under one or more
%% contributor license agreements.  See the NOTICE file distributed with
%% this work for additional information regarding copyright ownership.
%% The ASF licenses this file to You under the Apache License, Version 2.0
%% (the "License"); you may not use this file except in compliance with
%% the License.  You may obtain a copy of the License at
%%
%%     http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%------------------------------------------------------------------------------
-module(dubbo_filter).
-include("dubbo.hrl").

-type filter_result() :: {ok, Invocation :: invocation(), Acc :: invoke_result()}|{stop, term()}.

-callback(invoke(Invocation :: #dubbo_rpc_invocation{}, Acc :: invoke_result()) -> filter_result()).

-callback(on_response(Invocation :: invocation(), Result :: invoke_result()) -> filter_result()).