Validator is not set after initializing web socket MessageBroker from xml configuration [SPR-13996]

[spring-projects-issues]

Maksim Orlov opened SPR-13996 and commented

org.springframework.web.socket.config.MessageBrokerBeanDefinitionParser class doesn't contain any link to validator class, as result the Validator field in SimpAnnotationMethodMessageHandler and then in PayloadArgumentResolver is null and validation doesn't work at controller methods with @MessageMapping.

I was able to make validation working by using java config of MessageBroker.

The AbstractMessageBrokerConfiguration class performs validator configuration at this case.

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Affects: 4.2.5

Reference URL: #15811

Issue Links:

• Support for @Valid in @MessageMapping annotated methods [SPR-11185] #15811 Support for @Valid in @MessageMapping annotated methods

[spring-projects-issues]

Brian Clozel commented

I've added a new XML attribute to configure a custom Validator:

<websocket:message-broker
    application-destination-prefix="/app"
    user-destination-prefix="/personal"
    validator="myValidator">
  <!-- ... -->
</websocket:message-broker> 

[spring-projects-issues]

Maksim Orlov commented

Many thanks for the quick fix.

[spring-projects-issues]

Brian Clozel commented

Thanks for the report Maksim Orlov!
This should be available in the latest 4.3.0.BUILD-SNAPSHOT version if you'd like to test this.