api/src/main/java/org/apache/rocketmq/remoting/api/command/TrafficType.java

/*
 * 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.remoting.api.command;

public enum TrafficType {
    REQUEST_SYNC,
    REQUEST_ASYNC,
    REQUEST_ONEWAY,
    RESPONSE;

    public static TrafficType parse(int index) {
        switch (index) {
            case 0:
                return REQUEST_SYNC;
            case 1:
                return REQUEST_ASYNC;
            case 2:
                return REQUEST_ONEWAY;
            case 3:
                return RESPONSE;
            default:
                throw new IllegalArgumentException("TrafficType " + index + " is not supported");
        }
    }
}