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/*
 * 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.
 */

package org.apache.rocketmq.mqtt.common.hook;

import io.netty.handler.codec.mqtt.MqttMessage;
import org.apache.rocketmq.mqtt.common.model.MqttMessageUpContext;

import java.util.concurrent.CompletableFuture;

public interface UpstreamHookManager {
    /**
     * add a hook
     *
     * @param index
     * @param upstreamHook
     */
    void addHook(int index, UpstreamHook upstreamHook);

    /**
     * do hook in upstream
     *
     * @param context
     * @param msg
     * @return
     */
    CompletableFuture doUpstreamHook(MqttMessageUpContext context, MqttMessage msg);

}