[Jaxrs-cxf] Add bean-level cascaded beanvalidation for pojos (@Valid) #4738

[jfiala]

PR checklist

• Read the contribution guildelines.
• Ran the shell/batch script under ./bin/ to update Petstore sample so that CIs can verify the change. (For instance, only need to run ./bin/{LANG}-petstore.sh and ./bin/security/{LANG}-petstore.sh if updating the {LANG} (e.g. php, ruby, python, etc) code generator or {LANG} client's mustache templates)
• Filed the PR against the correct branch: master for non-breaking changes and 2.3.0 branch for breaking (non-backward compatible) changes.

Description of the PR

Implemented #4738 for CXF

Open issues:
@Valid is currently also generated for properties of type (isPrimitiveType/^isContainer does not cover these):

• java.lang.BigDecimal
• javax.xml.datatype.XMLGregorianCalendar
• org.joda.time.LocalDate
• java.util.UUID

Please advise how we can best check for model-specific pojos?

In fact, there is only one valid @Valid-reference in Pet.java:

@Valid
private Category category = null;

[jfiala]

@wing328 can you pls advise regarding the open issues above?
The question is how to best scope @Valid to be generated only for classes of the model, not for other classes.

[wing328]

@jfiala My take is that {{#isPrimitive}} should cover the following as well

• java.lang.BigDecimal
• javax.xml.datatype.XMLGregorianCalendar
• org.joda.time.LocalDate
• java.util.UUID

so that the following should imply models:

{{^isContainer}}{{^isPrimitiveType}} ... {{/isPrimitiveType}}{{/isContainer}}

[jfiala]

This is exactly what I am using at pojo.mustache:

{{^isPrimitiveType}}{{^isContainer}}{{#useBeanValidation}}
+  @Valid{{/useBeanValidation}}{{/isContainer}}{{/isPrimitiveType}}

PrimitiveType covers only the real primitive types and container the List/Map items.
So I think we need a new flag to check for isModelType?

[fehguy]

@jfiala shouldn't primitive or not primitive cover it?

[jfiala]

@fehguy unfortunately not, see above listed mustache snippet, I actually used ^isPrimitiveType/^isContainer.
The problem is that the above datatypes (BigDecimal, UUID etc.) are not considered primitives.
On the other hand, probably it would be better to introduce a new flag to check if a datatype is a pojo of the model?

[wing328]

So I think we need a new flag to check for isModelType?

I would rather update "isPrimitiveType" to include the additional items (e.g. uuid) you've listed.

Ref: https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#data-types

[olivierpaquet]

@wing328 any news about this PR? We also need this feature but seems that the PR is not yet merged / final.

[jfiala]

@olivierpaquet Thx for asking, but currently I'm too busy to rebase, if you like you can rebase and re-provide the PR.

[mohangadm]

We were trying to use this plugin for open api 3, and the validation of cascading beans is failing as @Valid annotation is not added on cascaded pojos.
Is this pull req merged to 3.X version for open api-3?