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https://issues.apache.org/jira/browse/CAMEL-16449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17314884#comment-17314884
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Claus Ibsen commented on CAMEL-16449:
-------------------------------------

You are welcome to dive into the code to see what this takes, there is a few 
spots where the code must be adjusted to pass in the exchange object.

> Make Exchange available to ServiceFilter
> ----------------------------------------
>
>                 Key: CAMEL-16449
>                 URL: https://issues.apache.org/jira/browse/CAMEL-16449
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-core
>    Affects Versions: 3.9.0
>            Reporter: Dietrich Schulten
>            Priority: Major
>
> It would be useful to make the current exchange available to custom 
> {{org.apache.camel.cloud.ServiceFilter}} implementations.
> The service filter could use data from the current exchange to decide which 
> service instance is capable of handling the request.
> It would probably also require to do something about 
> ServiceLoadBalancer.process because that is where the exchange would have to 
> be passed into the ServiceFilter.
> Workaround: use a ThreadLocal to store the required data and access them from 
> a custom service filter.



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