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https://issues.apache.org/jira/browse/TUSCANY-2516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12624462#action_12624462
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Dan Becker commented on TUSCANY-2516:
-------------------------------------

Just reading up on the SCA policy framework (with which I am quite the 
beginner). It seems like the annotation to perform caching on the reply and 
caching on the request might best be fit into the SCA policy framework? The 
caching and ETag/LastModified support fot the http bindings seems similar to 
the authentication policies we provide for other bindings.

> HTTP binding should support etag and if-modified headers
> --------------------------------------------------------
>
>                 Key: TUSCANY-2516
>                 URL: https://issues.apache.org/jira/browse/TUSCANY-2516
>             Project: Tuscany
>          Issue Type: Wish
>          Components: Java SCA Misc Binding Extensions
>            Reporter: Jean-Sebastien Delfino
>            Assignee: Dan Becker
>             Fix For: Java-SCA-Next
>
>
> The HTTP binding currently does not support etag and if-modified headers for 
> implementation-resource and implementation-widget components, preventing Web 
> browsers to do any caching.
> Supporting etag and if-modified should be easy for the above component 
> implementation types, just a matter of calculating a checksum and use it as 
> etag or checking the timestamp of the served file.

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