ArrayRedisMessage.java — netty Source File

Source Code

/*
 * Copyright 2016 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:
 *
 * https://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.redis;

import io.netty.util.AbstractReferenceCounted;
import io.netty.util.ReferenceCountUtil;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.StringUtil;
import io.netty.util.internal.UnstableApi;

import java.util.Collections;
import java.util.List;

/**
 * Arrays of <a href="https://redis.io/topics/protocol">RESP</a>.
 */
@UnstableApi
public class ArrayRedisMessage extends AbstractReferenceCounted implements RedisMessage {

    private final List<RedisMessage> children;

    private ArrayRedisMessage() {
        children = Collections.emptyList();
    }

    /**
     * Creates a {@link ArrayRedisMessage} for the given {@code content}.
     *
     * @param children the children.
     */
    public ArrayRedisMessage(List<RedisMessage> children) {
        // do not retain here. children are already retained when created.
        this.children = ObjectUtil.checkNotNull(children, "children");
    }

    /**
     * Get children of this Arrays. It can be null or empty.
     *
     * @return list of {@link RedisMessage}s.
     */
    public final List<RedisMessage> children() {
        return children;
    }

    /**
     * Returns whether the content of this message is {@code null}.
     *
// ... (118 more lines)