title: Poll Interval for Kafka Connect SourceTask
body: <p>I'm implementing a custom Source Connector using the Kafka-Connect API, that can be used to poll REST-APIs and sink the JSON response into a Kafka topic.</p>
  <p>Now I'm wondering how to realize a polling interval for the SourceTask, how the JDBC Connector offers one. Somewhere I have to set the thread to sleep, but where do I have to do this?</p>