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https://issues.apache.org/jira/browse/SPARK-4960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14258639#comment-14258639
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Hari Shreedharan commented on SPARK-4960:
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Awesome! One idea I had is to call it on the store(..) calls. This is a bit
tricky though, since some receivers call store(T) and some call
store(ArrayBuffer[T]) and some call both (like the Kafka one and soon the Flume
one too).
> Interceptor pattern in receivers
> --------------------------------
>
> Key: SPARK-4960
> URL: https://issues.apache.org/jira/browse/SPARK-4960
> Project: Spark
> Issue Type: New Feature
> Components: Streaming
> Reporter: Tathagata Das
>
> Sometimes it is good to intercept a message received through a receiver and
> modify / do something with the message before it is stored into Spark. This
> is often referred to as the interceptor pattern. There should be general way
> to specify an interceptor function that gets applied to all receivers.
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