73 lines
2.0 KiB
Java
73 lines
2.0 KiB
Java
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/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License, version 2.0 (the
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* "License"); you may not use this file except in compliance with the License. You may obtain a
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* copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package io.netty.handler.codec.redis;
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/**
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* Type of <a href="http://redis.io/topics/protocol">RESP (REdis Serialization Protocol)</a>.
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*/
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public enum RedisMessageType {
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SIMPLE_STRING((byte) '+', true),
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ERROR((byte) '-', true),
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INTEGER((byte) ':', true),
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BULK_STRING((byte) '$', false),
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ARRAY_HEADER((byte) '*', false),
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ARRAY((byte) '*', false); // for aggregated
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private final byte value;
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private final boolean inline;
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RedisMessageType(byte value, boolean inline) {
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this.value = value;
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this.inline = inline;
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}
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/**
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* Returns prefix {@code byte} for this type.
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*/
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public byte value() {
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return value;
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}
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/**
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* Returns {@code true} if this type is inline type, or returns {@code false}. If this is {@code true},
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* this type doesn't have length field.
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*/
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public boolean isInline() {
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return inline;
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}
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/**
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* Return {@link RedisMessageType} for this type prefix {@code byte}.
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*/
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public static RedisMessageType valueOf(byte value) {
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switch (value) {
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case '+':
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return SIMPLE_STRING;
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case '-':
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return ERROR;
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case ':':
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return INTEGER;
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case '$':
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return BULK_STRING;
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case '*':
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return ARRAY_HEADER;
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default:
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throw new RedisCodecException("Unknown RedisMessageType: " + value);
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}
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}
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}
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