Spring-framework: Protobuf MessageConverter in spring-messaging for use with STOMP

[onlybytes]

Hi,

I have created a ReactorNettyTcpStompClient to connect to RabbitMQ STOMP.

My requirement is to send protobuf ByteString to the destination queue. I tried with all the message converters that are available under _org.springframework.messaging.converter_ package. Either i get MessageDeliveryException: nested exception is java.lang.ClassCastException or MessageConversionException: Unable to convert payload with....

I am thinking of overriding/overloading the send() method of DefaultStompSessionclass and use it.

Is there any other easier way?

How to use protocol buffers with Spring Messaging?

Thanks,
Strive

[rstoyanchev]

Currently there isn't a MessageConverter in spring-messaging for Protobuf. The spring-web module however has an ProtobufHttpMessageConverter and it wouldn't be too hard to copy the implementation of that in order create a MessageConverter equivalent.

[onlybytes]

I created a converter that suits my needs (took a clue from ByteArrayMessageConverter).
Definitely will have look at ProtobufHttpMessageConverter.

Thanks for adding this to 5.x backlog

Regards,
Strive

[parviz-93]

Could i take this task ?

[rstoyanchev]

Yes, it is marked "ideal-for-contribution" and that means we've already identified it as something that should be straight-forward to address.

[parviz-93]

Please check my PR #24087.
I also added a question on which I need advice

[rstoyanchev]

This is now superseded by #24087.