Do you have control over the binary JSON?  If so, perhaps you could
include a discriminator in the JSON itself that allows the deserializer to
target the right output type?

Percy Wegmann
Director, Application Platform Engineering
 
cell: 512.710.6991

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On 5/11/15, 7:30 PM, "José Barrueta" <j...@stormpath.com> wrote:

>Hi all,
>
>We're planning to have a Samza Job that reads from 2 or more Kafka topics,
>the messages are serialized using Binary Json, we'd like to deserialize
>each message to its specific Java Type, the job configuration only allows
>to declare one system msg deserializer, is there any plan to allow per
>input deserializers? If not, and you guys find it useful, I'd be happy to
>contribute in it.
>
>So the other option I have is to send the raw bytes to the StreamTask and
>handle the deserialization in the `process(...)` method based on the
>stream
>source, i.e. envelope.getSystemStreamPartition().getStream() what I don't
>like about this approach, is that I'll be coupling the name of a partition
>to a specific behavior in the application.
>
>Any other suggestions?
>
>Jose Luis

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