/*
* Copyright 2017 LINE Corporation
*
* LINE Corporation 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.
*/
package com.linecorp.armeria.client;
import com.linecorp.armeria.common.Request;
import com.linecorp.armeria.common.Response;
/**
* A functional interface that enables building a {@link SimpleDecoratingClient} with
* {@link ClientBuilder#decorator(Class, Class, DecoratingClientFunction)}.
*
* @param <I> the {@link Request} type
* @param <O> the {@link Response} type
*/
@FunctionalInterface
public interface DecoratingClientFunction<I extends Request, O extends Response> {
/**
* Sends a {@link Request} to a remote {@link Endpoint}, as specified in
* {@link ClientRequestContext#endpoint()}.
*
* @param delegate the {@link Client} being decorated by this function
* @param ctx the context of the {@link Request} being sent
* @param req the {@link Request} being sent
*
* @return the {@link Response} to be received
*/
O execute(Client<I, O> delegate, ClientRequestContext ctx, I req) throws Exception;
}