[jira] [Created] (CAMEL-19210) camel-pulsar - Support for delayed delivery pulsar messages using deliverAt

["Alastair Burr (Jira)" <ji...@apache.org>]

Alastair Burr created CAMEL-19210:
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             Summary: camel-pulsar - Support for delayed delivery pulsar messages using deliverAt
                 Key: CAMEL-19210
                 URL: https://issues.apache.org/jira/browse/CAMEL-19210
             Project: Camel
          Issue Type: Improvement
          Components: camel-pulsar
            Reporter: Alastair Burr
             Fix For: 3.x


*Description*

Support for delayed delivery pulsar messages using deliverAt

*Proposed change*

To add in the ability to set the delayed delivery of Pulsar messages by use of a header. This would use the deliverAt() functionality on the Pulsar producer which simply takes in the a timestamp in milliseconds based on UTC

https://pulsar.apache.org/api/client/2.11.x/org/apache/pulsar/client/api/TypedMessageBuilder.html#deliverAt(long)

*Background:*

Delayed delivery is a very useful feature within Pulsar that can be used for a number of scenarios where you want the message to be picked up at a particular time.

There is additionally a deliverAfter() method on the Pulsar producer where you can specify a time period instead of a specific time, but the implementation behind the scenes just turns this into a timestamp then uses that. As such just implementing deliverAt() provides enough flexibility to the clients.



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