Hi Cezary, first thanks for your reply. Then I was at least not completely wrong. Let me show my code in the next reply, I will restore the version from GIT first.
Best Regards, Erich On Sat, Nov 30, 2019 at 8:38 PM Cezary Biernacki <cezary...@gmail.com> wrote: > Hi, > as you suggested, it is possible to capture output of handling request by > subclassing HttpServletResponseWrapper, providing your own > ServletOutputStream, and wrapping the original HttpServletResponse inside a > filter on the requested processing pipeline. This way is not specific to > Tapestry, maybe you only need to remember that Tapestry on the request > processing pipeline is implemented as a filter, not a servlet. Tapestry > itself uses this approach to implement compressing responses, see class > org.apache.tapestry5.internal.gzip.GZipFilter. I don't know why it is not > working for you, probably you have a bug, but without seeing your code it > hard to help you. > > Best regards, > Cezary > > > > > On Sat, Nov 30, 2019 at 10:38 AM Ric 2000 <erich.gorma...@gmail.com> > wrote: > > > Dear all, > > > > I'm struggling on how to filter and modify the response sent to the > client > > in a Tapestry web application. > > I tried first with a RequestFilter contributed to the RequestHandler > > service. > > The problem occurred when I tried to read the content of the current > > response out stream. There are different hints on the internet how to do > a > > "capture" of this output stream using a custom HttpServletResponseWrapper > > and overwriting the write method of the ServletOutputStream, to get the > > current content of the outputstream as byte array. > > > > But this is always empty, regardless of how I try to do it. > > > > Can you tell me, what is the right way in Tapestry to do it? Which > service > > do I have to contribute, in which phase of the request processing the > > response is filled and can be read, BEFORE it is send to the client? > > > > Thanks a lot for your suggestions, I really appreciate them! > > > > Best Regards, Ric > > >
