It seems topic parameters do not support subscription to multiple topics.

[weiping-code]

https://github.com/siddhi-io/siddhi-io-mqtt/blob/master/component/src/main/java/io/siddhi/extension/io/mqtt/source/MqttConsumer.java#L52
it,s not working when I set the topic parameter as this '/mqtt/topic1,/mqtt/topic2'. It seems topic parameters do not support subscription to multiple topics. It is necessary to separate the topic into multiple topics according to the comma when parsing the topic parameter.

[mohanvive]

As you mentioned, our current implement does not support to add multiple topics to the same source configuration. If you wanted to consume from multiple topics then you have to add separate source configuration for each of them..

It would be a simple fix, please send a PR if you like to contribute.