Allow customizing the SockJsMessageCodec in WebSocket Java config and XML namespace [SPR-12091]

[spring-projects-issues]

Ben Barron opened SPR-12091 and commented

Spring Messaging (Websockets) is intended to have the ability to work without Jackson on the classpath, however it is still required to deserialize/serialize the SockJs frames because, as far as I can tell, there isn't a way to easily call TransportHandlingSockJsService.setMessageCodec() and provide your own implementation based on whatever serializer you wish to use.

I believe the .setMessageCodec() method should be present on the SockJsServiceRegistration builder which in turn would set it upon creation of the TransportHandlingSockJsService in the SockJsServiceRegistration.createSockJsService() method.

This will allow you to do the following:

@Override
protected void registerStompEndpoints(StompEndpointRegistry registry) {
     registry.addEndpoint("/sockjs").withSockJS().setMessageCodec(...);
}

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Affects: 4.0.6, 4.0.7

Reference URL: http://stackoverflow.com/questions/25349589/spring-messaging-websockets-how-to-call-setmessagecodec

Referenced from: commits 2a0765e

[spring-projects-issues]

Rossen Stoyanchev commented

Are you trying to configure Gson-based codec or some other? If you have an implementation already, perhaps we can just that and use it automatically depending on which library is on the classpath.

[spring-projects-issues]

Ben Barron commented

Actually I am planning on using it with Genson: http://owlike.github.io/genson/.