com.alibaba.rocketmq.shade.io.netty.handler.codec.CodecUtil Maven / Gradle / Ivy

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/*
 * Copyright 2014 The Netty Project
 *
 * The Netty Project 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 io.netty.handler.codec;

import io.netty.channel.ChannelHandlerAdapter;

final class CodecUtil {

    /**
     * Throws {@link IllegalStateException} if {@link ChannelHandlerAdapter#isSharable()} returns {@code true}
     */
    static void ensureNotSharable(ChannelHandlerAdapter handler) {
        if (handler.isSharable()) {
            throw new IllegalStateException("@Sharable annotation is not allowed");
        }
    }

    private CodecUtil() { }
}