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https://issues.apache.org/jira/browse/CXF-1387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12558686#action_12558686
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Ian Roberts commented on CXF-1387:
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Jervis,
I've just attached version 2 of my interceptors, which
- moves the interceptors into rt/transports/http
- adds support for use on the server side as well as client - if not in
REQUESTOR_ROLE, the out interceptor first checks the request message's
Accept-Encoding header.
- adds a GZIPFeature.
- fixes a few minor bugs in the previous version.
To be honest I think they've grown too complex now to make a good sample of how
to add your own interceptors, also I've had to modify HttpHeaderHelper to make
them work so it's probably better just to merge them into the runtime. I had
no idea when I started out that the Accept-Encoding header was such a
complicated beast...
Ian
> Support for GZIP compression of HTTP payloads
> ---------------------------------------------
>
> Key: CXF-1387
> URL: https://issues.apache.org/jira/browse/CXF-1387
> Project: CXF
> Issue Type: New Feature
> Components: Core
> Reporter: Ian Roberts
> Attachments: gzip-interceptors-v2.diff, gzip-interceptors.diff
>
>
> This patch contains a pair of interceptors I wrote to provide support for
> proper GZIP compression of request and response messages. I originally
> started from the configuration_interceptor sample but the code has evolved
> quite a long way from there now.
> There are two separate interceptors. GZIPInInterceptor looks in the
> PROTOCOL_HEADERS for a Content-Encoding of "gzip", and if found it wraps the
> message's InputStream with a GZIPInputStream to uncompress the payload. It
> restores the original input stream at the end of processing (failure to do
> that originally left me with lots of stale HTTP connections).
> GZIPOutInterceptor applies gzip compression to outgoing messages whose
> payload is larger than a configurable threshold (default 1kB), and sets their
> Content-Encoding in the PROTOCOL_HEADERS to "gzip". Smaller messages are not
> compressed as it's probably not worth the overhead.
> As currently written, these interceptors are only for use on the client side
> (compress the request, uncompress the response). In my services I implement
> the server-side compression outside of CXF via a servlet filter
> (http://sourceforge.net/projects/pjl-comp-filter), but if you think it would
> be useful I can modify the interceptors to support this too - the "in"
> interceptor should work as-is, the "out" one would have to be made
> conditional on the Accept-Encoding header supplied in the client request.
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