net.dreamlu.iot.mqtt.codec.MqttUnsubAckMessage Maven / Gradle / Ivy
/*
* Copyright 2014 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 net.dreamlu.iot.mqtt.codec;
/**
* See
* MQTTV3.1/unsuback
*
* @author netty
*/
public final class MqttUnsubAckMessage extends MqttMessage {
public MqttUnsubAckMessage(MqttFixedHeader mqttFixedHeader,
MqttMessageIdAndPropertiesVariableHeader variableHeader,
MqttUnsubAckPayload payload) {
super(mqttFixedHeader, variableHeader, MqttUnsubAckPayload.withEmptyDefaults(payload));
}
public MqttUnsubAckMessage(MqttFixedHeader mqttFixedHeader,
MqttMessageIdVariableHeader variableHeader,
MqttUnsubAckPayload payload) {
this(mqttFixedHeader, fallbackVariableHeader(variableHeader), payload);
}
public MqttUnsubAckMessage(MqttFixedHeader mqttFixedHeader,
MqttMessageIdVariableHeader variableHeader) {
this(mqttFixedHeader, variableHeader, null);
}
private static MqttMessageIdAndPropertiesVariableHeader fallbackVariableHeader(
MqttMessageIdVariableHeader variableHeader) {
if (variableHeader instanceof MqttMessageIdAndPropertiesVariableHeader) {
return (MqttMessageIdAndPropertiesVariableHeader) variableHeader;
}
return new MqttMessageIdAndPropertiesVariableHeader(variableHeader.messageId(), MqttProperties.NO_PROPERTIES);
}
@Override
public MqttMessageIdVariableHeader variableHeader() {
return (MqttMessageIdVariableHeader) super.variableHeader();
}
public MqttMessageIdAndPropertiesVariableHeader idAndPropertiesVariableHeader() {
return (MqttMessageIdAndPropertiesVariableHeader) super.variableHeader();
}
@Override
public MqttUnsubAckPayload payload() {
return (MqttUnsubAckPayload) super.payload();
}
}