From: Paul Sandoz <Paul.Sandoz_at_Sun.COM>
Date: Tue, 06 Jan 2009 10:58:10 +0100

Hi,

See the source code of the GZIP and logging filter:

https://jersey.dev.java.net/source/browse/jersey/trunk/jersey/jersey-server/src/main/java/com/sun/jersey/api/container/filter/GZIPContentEncodingFilter.java?view=markup

https://jersey.dev.java.net/source/browse/jersey/trunk/jersey/jersey-server/src/main/java/com/sun/jersey/api/container/filter/GZIPContentEncodingFilter.java?view=markup

Your adapter could do something like this:

     private static final class Adapter implements
ContainerResponseWriter {
         private final ContainerResponseWriter crw;

         private OutputStream out;

         Adapter(ContainerResponseWriter crw) {
             this.crw = crw;
         }

         public OutputStream writeStatusAndHeaders(long contentLength,
ContainerResponse response) throws IOException {
            out = crw.writeStatusAndHeaders(-1, response);

            out.write("zzz(".getBytes());
            return out;
         }

         public void finish() throws IOException {
             out.write(")".getBytes());
         }
     }

And you register it like this:

    if(query string 'callback' is set) {
        response.setContainerResponseWriter(
                             new
Adapter(response.getContainerResponseWriter()));
    }

But. given that the client states what the function should be in the
query parameter why can't it do the work itself and wrap the JSON
around the function? why it is necessary to do this on the server side?

Paul.

On Jan 6, 2009, at 7:25 AM, 유재균 wrote:

> Thank you Sandoz.
>
> https://jersey.dev.java.net/servlets/ReadMsg?list=users&msgNo=3746
> this question is related above url.
>
> I have make Filter class.
> --------------------------------------------------------------
> public class JsonCallbackFilter implements ContainerResponseFilter{
> public ContainerResponse filter(ContainerRequest request,
> ContainerResponse response) {
> if(query string 'callback' is set) {
> ContainerResponseWriter crw =
> response.getContainerResponseWriter();
>
> // TODO how to add 'callback' value ???
>
> response.setContainerResponseWriter(crw);
> }
> return response;
> }
> --------------------------------------------------------------
>
> the request url is like this.
> http://xxxxxxxxxx/member/info?name=yyy&callback=zzz&type=json
>
> and expected result is
> zzz({"code":"12312","name":"yyy"})
>
>
> please help me.
>
> 개인용자료 - 접근금지
>
> 출처가 명확하지 않은 게시물이 많이 포함되어있습니다.
> 관계자가 아닌분은 방문을 삼가해 주십시오.
>