[JAVA] - Consider regex for path params (subresource operation)

[oliveirasevandro]

Description

I'm trying to generate resource endpoints which contain some sort of regex to validate the path params. Fox example: @path(/resource/{res:[a-zA-z]})

Couldn't find a way to produce that kind of souce code. Does anyone know if this feature is already implemented?

Swagger-codegen version

2.2.2

[wing328]

@oliveirasevandro in your spec, do you use pattern for the path parameters?

[oliveirasevandro]

@wing328 Yes, I do. My parameter specification is something like this:

parameters:  
  param:
    name: <parameter_name>
    in: path
    required: true
    type: string
    description: <some_description>
    pattern: ^(A|B|C)$

[wing328]

@oliveirasevandro looks like it's not yet implemented for Java. May I know if you've time to contribute the enhancement? I can show you some good starting points.

[oliveirasevandro]

Hey @wing328. It would be my pleasure to work on that. If you have some tips to provide me, let me know :)

[wing328]

Sure. Let me share more on pattern validation. Is it correct to say that you're using the default Java API client (okhttp-gson)?

[wing328]

There's already a mustache file with pattern validation: https://github.com/swagger-api/swagger-codegen/blob/master/modules/swagger-codegen/src/main/resources/Java/beanValidationCore.mustache

There are 2 mustache files using beanValidationCore.mustache:

swagger-codegen|master ⇒ grep -R beanValidationCore modules/swagger-codegen/src/main/resources/Java/*
modules/swagger-codegen/src/main/resources/Java/beanValidation.mustache:{{>beanValidationCore}}
modules/swagger-codegen/src/main/resources/Java/beanValidationQueryParams.mustache:{{#required}} @NotNull{{/required}}{{>beanValidationCore}} 

so I think we will need to add mustache templates for path, form, header parameters similar to what we've done for query parameters (beanValidationQueryParams)

[erreobi]

@oliveirasevandro @wing328 has it been released?