ArrayHeaderRedisMessage Class — netty Architecture

Source Code

codec-redis/src/main/java/io/netty/handler/codec/redis/ArrayHeaderRedisMessage.java lines 24–63

@UnstableApi
public class ArrayHeaderRedisMessage implements RedisMessage {

    private final long length;

    /**
     * Creates a {@link ArrayHeaderRedisMessage} for the given {@code length}.
     */
    public ArrayHeaderRedisMessage(long length) {
        if (length < RedisConstants.NULL_VALUE) {
            throw new RedisCodecException("length: " + length + " (expected: >= " + RedisConstants.NULL_VALUE + ")");
        }
        this.length = length;
    }

    /**
     * Get length of this array object.
     */
    public final long length() {
        return length;
    }

    /**
     * Returns whether the content of this message is {@code null}.
     *
     * @return indicates whether the content of this message is {@code null}.
     */
    public boolean isNull() {
        return length == RedisConstants.NULL_VALUE;
    }

    @Override
    public String toString() {
        return new StringBuilder(StringUtil.simpleClassName(this))
                .append('[')
                .append("length=")
                .append(length)
                .append(']').toString();
    }
}