Hi Jeromy,
Thanks for the response, that's really helpful.
Could you possibly provide a little bit more detail though as I
haven't been able to get this working yet.
This might seem like a stupid question, but in your code snippet below
where you have: // create the stream
Where does the output go? Should I use ModelDriven and assign it to the model?
Also how do I get a handle on the StreamResult object so I can specify
attributes programmatically? All the samples I have seen do so
declaratively.
Thanks again for the tips!
Mike
2008/6/20 Jeromy Evans <[EMAIL PROTECTED]>:
> Mike Watson wrote:
>>
>> Hi Folks,
>>
>> I'm trying to figure out how to return binary data from the REST plugin.
>>
>> I'd like to be able to return images that are generated on the fly by
>> a REST request but looking at ContentTypeHandlerManager, it assumes
>> that we'll only ever want to return a string and so passes a
>> StringWriter as the output for implementers of
>> ContentTypeHandler.fromObject.
>>
>>
>
> At first, don't create a custom ContentTypeHander.
> Just have your Controller declare a StreamResult. The default
> ContentTypeHandler will drop through for result processing by XWork (as per
> a ServletRedirectResult).
>
> eg. GET /namespace/image/21
>
> @Result("stream", type = StreamResult.class, value="image")
> class ImageController {
> public InputStream getImage() {}
>
> public String show() {
> // create the stream
> return "stream"; }
> }
>
> See StreamResult for how to set the Content-type and other properties.
>
> One that works, you could (potentially) register a ContentTypeHandler for
> each image content type you want to return (eg. register the jpg and png
> extensions). The ContentTypeHandler should do nothing except return a
> result name for XWork that is mapped to a StreamResult. The image retrieval
> would have to be performed in the Controller rather than the Handler though.
> There is probably a bit of work to do in the plugin to handle binary
> results better though.
>
> Hope that gets you started.
> Jeromy Evans
>
>
>
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