Hey Bill,
thanks for your reply.
Am 07.06.2014 um 22:08 schrieb Bill Burke bbu...@redhat.com:
Unfortunately, the JAX-RS TCK expects that the MBW is not matched until
after the WriterInterceptor is invoked. We used to match prior to
What a c$%@!
invoking the interceptor chain...
Which makes so much sense
So, you have 2 options:
1. In your WriterInterceptor buffer the json marshalling, change the
content header, flush the buffer.
I have this block in aroundWriteTo:
try {
context.proceed();
} finally {
context.getHeaders().get(Content-Type).clear();
context.getHeaders().putSingle(Content-Type,APPLICATION_JAVASCRIPT);
}
But that header change is not recorded in the output.
And when I understand you correctly above, this would be an issue anyway,
because the changed header would influence the MBW matcher which runs after the
interceptor.
2. Write a special MBW that delegates to the JSON writer and sets the
content header before doing this.
Sounds like a plan to investigate.
Thanks
Heiko
Make sense?
On 6/7/2014 1:00 PM, Heiko W.Rupp wrote:
Hey,
I have a use case where the user is requesting jsonp encoding e.g. via
custom media type or a .jsonw ending.
Anyway. I can intercept the call and surround with jsonp(); successfully,
but the returned
content-type needs to be changed to application/javascript.
I could accept that as incoming type, but then RE is complaining about no
matching MessageBodyWriter.
So I am thinking of using ContainerWriteFilter to re-write this, but the
calls seem to be
MessageHandler method (@GET foo() {} ) (1)
ContainerWriteFilter (2)
message body writer (3)
WriterInterceptor. (4)
(5)
So when I rewrite the content header in (2) a the mbw in (3) complains about
wrong type and
in (4) I can not check if the desired content type is my custom one to
request the wrapping or not.
So I would need to run a ContainerWriteFilter at (5) to rewrite the header
*after* the interceptor has run.
In RHQ I solved that with a normal servlet filter, but it looks like this
does not work here because
of Async processing (and rewriting the filter with an AsyncListener has its
own issues )
Thanks
Heiko
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