Thank you for your answer, Nelson. I was near to your solution. Thank you for reminding me to flush the writer.
Now I detected the real problem in my application: I did not use the jetty adapter but the http-kit <http://www.http-kit.org> server. http-kit buffers whole response body from InputStream before sending to client <https://github.com/http-kit/http-kit/issues/90>. I switched to jetty, added the flush and everything works like a charm. Am Montag, 20. April 2015 21:49:42 UTC+2 schrieb Nelson Morris: > > The `clojure.data.xml/emit` function will stream xml to a Writer. To hook > it up to `piped-input-stream` requires a little bit of book keeping work. > `piped-input-stream` provides an OutputStream and we need to convert that > to a Writer. Luckily `clojure.java.io/writer` > <http://clojure.java.io/writer> can handle that for us. Additionally, > we'll need to `flush` at the end in order to make sure this intermediate > writer is not buffering any data before `piped-input-stream` closes the > OutputStream. All together, a ring response could be generated like: > > ``` > (response/response > > > (ring-io/piped-input-stream > > > #(->> (io/make-writer % {}) > > > (xml/emit (data)) > > > .flush))) > ``` > > A complete example is available at https://www.refheap.com/99829. When I > run the jetty server and use curl, going to http://localhost:8080/stream > begins streaming "quickly", where as http://localhost:8080 waits until > the entire response is generated. > > - > Nelson > > On Mon, Apr 20, 2015 at 11:40 AM, Herwig Hochleitner <hhochl...@gmail.com > <javascript:>> wrote: > >> The way enlive does it, is to create a lazy sequence of strings. A >> response body such as that can be immediately be used by ring. However, I >> don't know from the top of my head how to generate it from data.xml. >> I'll be glad to get some input on that, otherwise I'll think about this >> more, the next time I come around to hacking on it. >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com >> <javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
