RE: Image as Base64

From: Markus Karg <karg_at_quipsy.de>
Date: Tue, 22 Mar 2011 12:00:59 +0100

Great, sounds exactly as what I need to have. :-)

Just a last question: Is that a particular feature of Oracle's JAXB implementation, or will any JAXB implementation act like that?

Thanks!

Markus

From: Martin Grebac [mailto:martin.grebac_at_oracle.com]
Sent: Dienstag, 22. M�rz 2011 11:59
To: users_at_jaxb.java.net
Subject: Re: Image as Base64

PNG is the default, and yes jaxb converts by mimetype,
MartiNG

On 03/21/2011 02:47 PM, Markus Karg wrote:

        So if I understand correctly:



        * Without @XmlMimeType the transferred bytes are of what format? Since java.awt.Image has nothing like "getBytes", what does JAXB actually do to get the (originally PNG) bytes?



        * With @XmlMimeType the transferred bytes are converted to that format? So if I did ImageIO.read(PNG) with @XmlMimeType("image/png") JAXB will apply PNG formatting (even if the java.awt.Image maybe was loaded from a GIF originally)?



        Thanks!

        Markus



        From: Wolfgang Laun [mailto:wolfgang.laun_at_gmail.com]
        Sent: Montag, 21. M�rz 2011 14:28
        To: users_at_jaxb.java.net
        Subject: Re: Image as Base64



        On 21 March 2011 14:13, Markus Karg <karg_at_quipsy.de> wrote:

                Wolfgang,



                maybe I am blind, but where on that page does it say that *any* Image (possibly PNGs) will be transferred as JPGs?


        Why should a PNG be transferred as JPG? Whatever you have, as a byte array, is transferred. Sender and receiver should have some agreement; xmime:expectedContentTypes is the vehicle for that, resulting in a @XmlMimeType.

        -W





                Regards

                Markus



                From: Wolfgang Laun [mailto:wolfgang.laun_at_gmail.com]
                Sent: Montag, 21. M�rz 2011 14:08
                To: users_at_jaxb.java.net
                Subject: Re: Image as Base64



                See the text (and image!) on http://jaxb.java.net/tutorial/section_2_2_17-Image-Data.html#Image%20Data

                If it has a mime type it should be representable, Java processing being available.

                -W

                On 21 March 2011 13:49, Markus Karg <karg_at_quipsy.de> wrote:

                I just noticed that JAXB is able to deal with java.awt.Image. Looks like it uses Base64 to inline it. But I wonder what the transferred bytes actuall do present: The raw data of the BufferedImage, or a common file format like JPG, PNG, GIF. etc. (which one)?



                Thanks

                Markus

-- 
Martin Grebac, GlassFish/Metro/JAXB/Tooling at Oracle
http://blogs.sun.com/mgrebac
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