[CAMEL-11691] Should resubscribe when reconnect MQTT

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.19.2
• Fix Version/s: 2.19.3, 2.20.0
• Component/s: camel-paho
• Estimated Complexity: Novice
• Assignee: Claus Ibsen
• Reporter: abccbaandy
• Created: 22/Aug/17 13:38
• Updated: 09/Sep/17 09:23
• Resolved: 09/Sep/17 09:21

Description

There is a feature in MqttConnectOptions called setAutomaticReconnect
https://www.eclipse.org/paho/files/javadoc/org/eclipse/paho/client/mqttv3/MqttConnectOptions.html#setAutomaticReconnect-boolean-

But, when it reconnect, it doesn't resubscribe the topics. Paho provide a callback : MqttCallbackExtended, it got called when connect completed. So we can subscribe the topics again in that callback.
https://www.eclipse.org/paho/files/javadoc/org/eclipse/paho/client/mqttv3/MqttCallbackExtended.html

I check camel-paho source code, seems it use MqttCallback instead MqttCallbackExtended.

Can anyone implement this feature?

Thanks

Issue Links

• links to: GitHub Pull Request #1928