[jira] Created: (CXF-366) mods to partial response mechanism to facilitate wider interop

["Eoghan Glynn (JIRA)" <ji...@apache.org>]

mods to partial response mechanism to facilitate wider interop
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                 Key: CXF-366
                 URL: https://issues.apache.org/jira/browse/CXF-366
             Project: CXF
          Issue Type: Improvement
          Components: Transports, WS-* Components
            Reporter: Eoghan Glynn


An extended discussion on cxf-dev about partial responses identified a number of modifications that would facilitate wider interoperability with other WS-RM implementations.

- Currently we expected partial responses received over HTTP to have response code 202. However we should also be tolerant to Systinet partial response to oneway invocations with response code 200. 

- Currently when checking for a partial response in the HTTPConduit code, we determine if the HTTP entity-body is non-empty on the basis on the content-length header. We should instead use a non-null content-type as the primary indicator of an non-empty entity-body.

Another interop-friendly improvement would be to supress sending the partial response message where there are no non-WS-A headers set by the outgoing interceptor chain (e.g. if WS-RM doesn't have any pending outgoing ACKs). This could be implemented by interposing a buffering output stream for the partial response, and checking that it contained some non-WS-A header before flushing it to the wire, otherwise discarding the response body.

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