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https://issues.apache.org/jira/browse/CAMEL-17555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17500748#comment-17500748
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Nicolas Filotto commented on CAMEL-17555:
-----------------------------------------
The option "precondition" has been added to the route to be able to include or
not a route according to the result of a predicate expressed in simple language
like in the next examples:
Java DSL:
{code:java}
from("direct:in").precondition("'{{format}}' == 'xml'")
.unmarshal().jaxb()
.to("direct:out");{code}
XML DSL:
{code:java}
<route precondition="'{{format}}' == 'xml'">
<from uri="direct:in"/>
<unmarshal><jaxb/></unmarshal>
<to uri="direct:out"/>
</route>{code}
YAML DSL:
{code:java}
- route:
precondition: "'{{format}}' == 'xml'"
from:
uri: "direct:in"
steps:
- unmarshal:
jaxb: {}
- to: "direct:out"{code}
> camel-core - Flag to include/exclude routes in route templates
> --------------------------------------------------------------
>
> Key: CAMEL-17555
> URL: https://issues.apache.org/jira/browse/CAMEL-17555
> Project: Camel
> Issue Type: New Feature
> Components: camel-core
> Reporter: Claus Ibsen
> Assignee: Nicolas Filotto
> Priority: Major
> Fix For: 3.16.0
>
>
> To make route templates (aka kamelets) more flexible it can benefit that we
> allow to declare routes whether they should be included or excluded. This
> allows to parameterize these routes and therefore only include them if the
> template has a parameter included for this.
> A bit like the new doSwitch which optimizes the when and only select the one
> that has a parameter from the template.
> Now we need to come up with a good name for such an option, and should it be
> include/exclude, filter, or pattern or enabled/disabled or something else.
> We can use simple language so you can say something like:
> <route enabled="{{protocol}} == 'avro'">
> </route>
> <route enabled="{{protocol}} == 'json'">
> </route>
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