1 /*
2 * Copyright 2020 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16
17 package io.netty.handler.codec.mqtt;
18
19 import io.netty.util.internal.StringUtil;
20
21 /**
22 * Variable Header containing, Packet Id and Properties as in MQTT v5 spec.
23 */
24 public final class MqttMessageIdAndPropertiesVariableHeader extends MqttMessageIdVariableHeader {
25
26 private final MqttProperties properties;
27
28 public MqttMessageIdAndPropertiesVariableHeader(int messageId, MqttProperties properties) {
29 super(messageId);
30 if (messageId < 1 || messageId > 0xffff) {
31 throw new IllegalArgumentException("messageId: " + messageId + " (expected: 1 ~ 65535)");
32 }
33 this.properties = MqttProperties.withEmptyDefaults(properties);
34 }
35
36 public MqttProperties properties() {
37 return properties;
38 }
39
40 @Override
41 public String toString() {
42 return StringUtil.simpleClassName(this) + "[" +
43 "messageId=" + messageId() +
44 ", properties=" + properties +
45 ']';
46 }
47
48 @Override
49 MqttMessageIdAndPropertiesVariableHeader withDefaultEmptyProperties() {
50 return this;
51 }
52 }