luigidemasi commented on PR #26684:
URL: https://github.com/apache/camel/pull/26684#issuecomment-5761729109
> @davsclaus @luigidemasi I am not sure regarding using it as a language or
not, for sure it is not a language, on the other hand, it would be nice to
somehow use jev expressions in filter/choice and so on. As far as I understand,
you can pass unstructured text to jev, and some rules, and it will reply only
with either a boolean, or a confidence score
@Croway, @davsclaus, you can achieve it using predicates, something like:
```yaml
- beans:
- name: messageBody
type: org.apache.camel.Expression
factoryBean: org.apache.camel.support.builder.ExpressionBuilder
factoryMethod: bodyExpression
- name: refundPredicate
type: org.apache.camel.component.jev.JevPredicate
constructors:
0: jev:refund
1: "#bean:messageBody"
2: Does this message request a refund?
3: "0.8"
- from:
uri: direct:filter
steps:
- filter:
ref: refundPredicate
steps:
- to: direct:refund-handler
- from:
uri: direct:route
steps:
- choice:
when:
- ref: refundPredicate
steps:
- to: direct:refund-handler
otherwise:
steps:
- to: direct:general-handler
```
It's not a standard (yet), and SemIf (former openjev) exposes different
interfaces,
[razorback16/openjev](https://github.com/razorback16/openjev) and
[ekzhang/openjev-sglang](https://github.com/ekzhang/openjev-sglang) explicitly
implement the TypeSafe API.
They are candidates for use through the component’s configurable baseUrl,
but I haven’t tested them with Camel.
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