[jira] [Commented] (CAMEL-8419) Camel StreamCache does not work with CXF consumer for InOut messages

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

    [ https://issues.apache.org/jira/browse/CAMEL-8419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349022#comment-14349022 ] 

Claus Ibsen commented on CAMEL-8419:
------------------------------------

It should be done like camel-jetty does, it lets the consumer create the uow and handle that lifecycle
https://github.com/apache/camel/blob/master/components/camel-jetty-common/src/main/java/org/apache/camel/component/jetty/CamelContinuationServlet.java#L146

Then it writes the response
https://github.com/apache/camel/blob/master/components/camel-jetty-common/src/main/java/org/apache/camel/component/jetty/CamelContinuationServlet.java#L198

And in the finally it done the UoW
https://github.com/apache/camel/blob/master/components/camel-jetty-common/src/main/java/org/apache/camel/component/jetty/CamelContinuationServlet.java#L206

Then the stream cache which may have been offloaded to disk will only get the file deleted after the consumer has sent back the response. 

> Camel StreamCache does not work with CXF consumer for InOut messages
> --------------------------------------------------------------------
>
>                 Key: CAMEL-8419
>                 URL: https://issues.apache.org/jira/browse/CAMEL-8419
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-cxf
>    Affects Versions: 2.14.1
>            Reporter: Stephan Siano
>             Fix For: 2.15.1, 2.16.0
>
>         Attachments: 0001-CAMEL-8419-Camel-StreamCache-does-not-work-with-CXF-.patch
>
>
> If a route that is started by a CXF consumer and has an InOut exchange pattern (meaning that the CXF consumer is returning a response back to the caller) contains a StreamCache as message object that is not in memory, returning the payload will fail.
> The reason for this is that an on-disk stream cache in Camel will be removed when the LUW ends, but CXF will return the response afterwards.
> See the two attached unit tests for details.
> I don't like the actual patch too much, as it copies on-disk camel stream caches into CXF stream caches when creating the CXF message object in camel CXF, but this is about the last step before the LUW ends (and the file gets deleted).



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