e09ffc7d60
Motivation: MQTT 3.1.1 became an OASIS Standard at 13 Nov 2014. http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/mqtt-v3.1.1.html MQTT 3.1.1 is a minor update of 3.1. But, previous codec-mqtt supported only MQTT 3.1. Modifications: - Add protocol name `MQTT` with previous `MQIsdp` for `CONNECT`’s variable header. - Update client identifier validation for 3.1 with 3.1.1. - Add `FAILURE (0x80)` for `SUBACK`’s new error code. - Add a test for encode/decode `CONNECT` of 3.1.1. Result: MqttEncoder/MqttDecoder can encode/decode frames of 3.1 or 3.1.1.
43 lines
1.1 KiB
Java
43 lines
1.1 KiB
Java
/*
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* Copyright 2014 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.mqtt;
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public enum MqttQoS {
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AT_MOST_ONCE(0),
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AT_LEAST_ONCE(1),
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EXACTLY_ONCE(2),
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FAILURE(0x80);
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private final int value;
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MqttQoS(int value) {
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this.value = value;
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}
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public int value() {
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return value;
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}
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public static MqttQoS valueOf(int value) {
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for (MqttQoS q: values()) {
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if (q.value == value) {
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return q;
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}
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}
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throw new IllegalArgumentException("invalid QoS: " + value);
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}
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}
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