Thanks for your note, Dmitri. I have thought about saving the jpg on the server then exposing it through an URL, but that results in a potential security breach in my system. If I generate the image on the fly and stream it to the client, I can control that the client has right credentials to obtain it. Moreover, no trace is left on the server. I strongly prefer this way.
Could you please add some detail about why you're not sure I can retrieve binary data through an HTTPService call ? My idea, as of now, is implementing it like I would in a Java client. I mean: open an input stream from the servlet URL, then read data until it's available, building the byte array chunk by chunk. By the way, that's how the underlying FLex/AS code should do, in the backgrounds of the HTTPService/send()/result callback implementation. At least I think so, though I have no time to browse the Flex source code to find out. Do you have any more suggestions ? Pier Dmitri Girski wrote: > > Hmmm, I just re-read your post and realised that you are getting the > binary data via the HTTPService. > I am not sure if you can do this. > > If I were you I would save the generated image as .jpg file on server > in some temp location and then return the path+name of it to the > client. And then just set the source property of Image object. > > Cheers, > Dmitri. > > > > --- In flexcoders@yahoogroups.com, p_repetti <[EMAIL PROTECTED]> > wrote: >> >> >> Thanks to everyone who replied, but nothing changed. >> >> It looks like the problem is in the result byte array, that is > _before_ the >> loader actually gets in. >> Is my way of creating the ByteArray correct ? >> How can I inspect the length and contents of lastResult via the > debugger ? >> >> Thanks >> >> >> Dave Cragg wrote: >> > >> > Isn't using URLLoader a better way to download binary data such as >> > jpeg files? It has a dataFormat property that can be set to binary, >> > which delivers the data as a byteArray. >> > >> > My understanding of httpService is that it will try to parse the >> > result depending on the setting of the resultFormat property. > There is >> > no binary option for this. >> > >> > I don't know if that's the cause of your problem, but it may be > worth >> > trying. >> > >> > Dave >> > >> > On 2 Apr 2008, at 18:04, p_repetti wrote: >> > >> >> >> >> Hello >> >> >> >> I'm retrieving a JPEG from the server side to display it in an >> >> mx:Image. The >> >> image raw bytes are served by a plain Java Servlet. The content > type >> >> is >> >> correct. If I call the servlet from a common browser it all works >> >> fine. The >> >> image is 400KB big. >> >> >> >> PROBLEM: when I call the servlet from Flex 3, it looks like the >> >> lastResult >> >> contains only the first bytes of the image, not all. >> > >> > >> >> -- >> View this message in context: > http://www.nabble.com/Partial-result-from-HTTPService-call-tp16447449p16467377.html >> Sent from the FlexCoders mailing list archive at Nabble.com. >> > > > > -- View this message in context: http://www.nabble.com/Partial-result-from-HTTPService-call-tp16447449p16489127.html Sent from the FlexCoders mailing list archive at Nabble.com.
