On Wed, Feb 04, 2009 at 11:30:21AM +0100, Paul Sandoz wrote:
<snip/>
>>
>> The use of '@' sign in resulting JSON as described by BadgerFish is
>> causing a downstream problem for me as the toolkit I am using to process
>> JSON does not like it. So I need to fix my ResponseFilter to remove '@'
>> sign in the JSON output.
You do not need to filter '@' out using ResponseFilter,
please see [1] for two options how to get rid of '@' and still
retain possibility to de-serialize the JSON back to Java.
Based on the proposed fix, i presume you do not actually use
BadgerFish notation, and the suggested solutions should then work for you.
HTH,
~Jakub
[1]
https://jersey.dev.java.net/issues/show_bug.cgi?id=201
>>
>> Here is what my adapter class looks like:
>>
>> /**
>> *
>> * See: http://n2.nabble.com/-Filter--how-to-customize-context-body---td2116754.html
>> */
>> private static final class JSONCallbackResponseAdapter implements
>> ContainerResponseWriter {
>>
>> private final ContainerResponseWriter crw;
>> private OutputStream out;
>> private String callback;
>>
>> JSONCallbackResponseAdapter(ContainerResponseWriter crw, String
>> callback) {
>> this.crw = crw;
>> this.callback = callback;
>> }
>>
>> public OutputStream writeStatusAndHeaders(long contentLength,
>> ContainerResponse response) throws IOException {
>> out = crw.writeStatusAndHeaders(-1, response);
>>
>> out.write((this.callback + "(").getBytes());
>> return out;
>> }
>>
>> public void finish() throws IOException {
>> out.write(")".getBytes());
>> }
>> }
>>
>> I do not quite understand the above code originally from you. Where does
>> the main body of the response get injected taht I need to filter?
>>
>
> The main body of the response is set on the ContainerResponse.getEntity().
> This is then serialized using a message body writer.
>
> Your JSONCallbackResponseAdapter can adapt the output stream "out" in it's
> own output stream.
>
> Although such adaption could check for a byte that is of the value '@' and
> not write this value it is really not the right layer because you do not
> know what the character encoding is. One way is in the
> writeStatusAndHeaders to buffer the content, then in the finish method to
> re-parse the JSON and using something like Jackson to filter out the '@'
> characters.
>
> Another alternative is of course to have a configuration option in the JSON
> serialization. But this may effect the ability to consume such JSON back to
> JAXB.
>
> Out of curiosity what JSON clients are you using?
>
> Paul.
>
>> What would I need to change to remove '@' sign globally from the response?
>>
>> Thanks for your help.
>>
>> --
>> Regards,
>> Farrukh
>>
>> Web: http://www.wellfleetsoftware.com
>>
>>
>>
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