[jira] [Updated] (CAMEL-24914) Spring Boot starter generator: define behaviour for languages using @Language(modelName = "language")

["Federico Mariani (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-24914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Federico Mariani updated CAMEL-24914:
-------------------------------------
    Fix Version/s: 4.23.0

> Spring Boot starter generator: define behaviour for languages using @Language(modelName = "language")
> -----------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-24914
>                 URL: https://issues.apache.org/jira/browse/CAMEL-24914
>             Project: Camel
>          Issue Type: Task
>          Components: camel-spring-boot-starters
>            Reporter: Claus Ibsen
>            Priority: Major
>             Fix For: 4.23.0
>
>
> h2. Background
> CAMEL-24871 (Camel 4.23.0) added {{@Language(modelName = "language")}}, letting a component ship a language that reuses the generic {{LanguageExpression}} model instead of requiring a dedicated model in camel-core. {{jev}} in {{camel-jev}} is the first language to use it.
> h2. Problem
> The Spring Boot starter generator in {{apache/camel-spring-boot}} derives {{*LanguageConfiguration}} from the language's JSON model. For a language backed by the generic model, that JSON carries only:
> {{id}}, {{language}}, {{expression}}, {{trim}}, {{resolveResource}}
> The generator has never encountered this shape. It is unverified whether it:
> * generates a technically valid but empty-of-meaning {{*LanguageConfiguration}} (likely), or
> * trips over the {{"modelName": "language"}} / {{LanguageExpression}} indirection and fails or emits something wrong.
> h2. Proposal
> Verify the generator's behaviour against a language declared with {{modelName = "language"}}, and decide what it should do:
> * Emit nothing for such languages, leaving configuration to the component and/or a hand-written class, or
> * Emit the generic properties only, clearly documented as such, or
> * Emit a warning so the component author knows a hand-written configuration is required.
> Whichever way it goes, the outcome should be explicit rather than incidental, so the next component shipping a generic-model language does not rediscover this.
> h2. Related
> CAMEL-24913 covers {{camel-jev-starter}} specifically, which is expected to be hand-crafted like {{camel-platform-http-starter}}. This issue is about the generator's general behaviour and stands independently of how {{camel-jev-starter}} is built.
> _Claude Code on behalf of davsclaus_



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