[jira] [Commented] (CAMEL-19343) Predicates are shared between templated routes

["Claus Ibsen (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAMEL-19343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17743516#comment-17743516 ] 

Claus Ibsen commented on CAMEL-19343:
-------------------------------------

This is because you use the fluent builder on simple. If you do this

                .when(simple("'{{" + CHOICE_PARAMETER + "}}' == 'some'") 

Then it works fine and this is also the way other DSLs and Kamelets are doing this.

> Predicates are shared between templated routes
> ----------------------------------------------
>
>                 Key: CAMEL-19343
>                 URL: https://issues.apache.org/jira/browse/CAMEL-19343
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core-model
>    Affects Versions: 3.20.4
>            Reporter: Bartosz Popiela
>            Assignee: Claus Ibsen
>            Priority: Major
>
> Templated routes with the "choice" processor share the same Predicate ({_}org.apache.camel.model.WhenDefinition#expression#predicate{_}) and because it is initialized with template parameters of the first route created, it fails for the other routes. This is particularly visible when using Kamelets.
> The proposed solution would be for _org.apache.camel.model.WhenDefinition_ to accept Supplier<Predicate> (or similar) instead of the Predicate instance but that would require static factory methods in _org.apache.camel.support.builder.PredicateBuilder_ to be refactored or a new class to be created.
> [This|https://github.com/bartoszpop/CAMEL-19343/blob/main/src/test/java/io/github/bartoszpop/camel/Camel19343Test.java] is the unit test. It fails for the second instance of the template.



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