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Follow mqtt 3.1.1 protocol number 3.3.1-2

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Follow mqtt 3.1.1 protocol number 3.3.1-2 : The DUP flag MUST be set to 0 for all QoS 0 messages. If the qos of the publish message is not 0, then set dup to true
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blackstar-baba 2020-05-26 14:01:34 +08:00 committed by GitHub
parent 02dd9ecdb9
commit 7fd517dafa
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1 changed files with 6 additions and 2 deletions
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8
netty-mqtt/src/main/java/org/thingsboard/mqtt/RetransmissionHandler.java
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@ -18,8 +18,9 @@ package org.thingsboard.mqtt;
import io.netty.channel.EventLoop;
import io.netty.handler.codec.mqtt.MqttFixedHeader;
import io.netty.handler.codec.mqtt.MqttMessage;
import io.netty.util.concurrent.ScheduledFuture;
import io.netty.handler.codec.mqtt.MqttMessageType;
import io.netty.handler.codec.mqtt.MqttQoS;
import io.netty.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.function.BiConsumer;
@ -45,7 +46,10 @@ final class RetransmissionHandler<T extends MqttMessage> {
private void startTimer(EventLoop eventLoop){
this.timer = eventLoop.schedule(() -> {
this.timeout += 5;
boolean isDup = this.originalMessage.fixedHeader().messageType() == MqttMessageType.PUBLISH ? true : this.originalMessage.fixedHeader().isDup();
boolean isDup = this.originalMessage.fixedHeader().isDup();
if(this.originalMessage.fixedHeader().messageType() == MqttMessageType.PUBLISH && this.originalMessage.fixedHeader().qosLevel() != MqttQoS.AT_MOST_ONCE){
isDup = true;
}
MqttFixedHeader fixedHeader = new MqttFixedHeader(this.originalMessage.fixedHeader().messageType(), isDup, this.originalMessage.fixedHeader().qosLevel(), this.originalMessage.fixedHeader().isRetain(), this.originalMessage.fixedHeader().remainingLength());
handler.accept(fixedHeader, originalMessage);
startTimer(eventLoop);