Fw: [Gui4j-user] how to read xml from an InputStream

[Kay <Kay...@be...>]

Hi Rahul,

check out the latest gui4j from CVS. There's an interface=20
Gui4jResourceProvider with a single method:
        InputStream getResource(String fullyQualifiedName);

All XML files are loaded via this method. There's a default implementation =

that uses files. If you want to read the resources in a different way=20
you'll have to write your own implementation and provide Gui4j with an=20
instance of it via Gui4j.setResourceProvider().

The String argument of getResource() is the fully qualified name of the=20
required resource. Resource names use "/" as their separator, i.e. if you=20
loaded a resource "foo" which uses an include with url=3D"bar" then the=20
resource provide will be asked to load "foo/bar".

Note that resources are cached, i.e. the resource provider is never asked=20
twice for the same resource. Also note that Gui4j itself resolves ".."=20
notation, i.e. if you loaded a resource "foo/bar" which uses an include=20
with url=3D"../hello" then the resource provider is asked to load=20
"foo/hello".

Keep us posted on your progress with your resource provider.

Kind Regards,

Kay Kr=FCger-Barvels

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beck et al. projects GmbH
Theresienh=F6he 13, D-80339 M=FCnchen
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----- Forwarded by Kay Kr=FCger-Barvels/BEAP on 26.09.2005 17:11 -----

Kay Kr=FCger-Barvels/BEAP=20
23.09.2005 16:05

To
"Rahul Shrivastava" <shri=5F...@ho...>@BEAP=5FWEB
cc

Subject
[Gui4j-user] how to read xml from an InputStream





Hi Rahul,

I'm afraid we won't be able to supply the switch to Gui4jResourceProvider=20
before next week. Time constraints on customer projects. Sorry.

Kay=20

----- Forwarded by Kay Kr=FCger-Barvels/BEAP on 23.09.2005 16:03 -----

Kay Kr=FCger-Barvels/BEAP
22.09.2005 13:16

To
"Rahul Shrivastava" <shri=5F...@ho...>@BEAP=5FWEB
cc

Subject
Re: [Gui4j-user] how to read xml from an InputStream





Hi Rahul,

the Gui4jResourceProvider will have to implement a method that provides=20
the xml as an InputStream. At least that's what I agreed on with Joachim.=20
I'm not up to date right now with how far his code changes are, but I will =

talk to him tomorrow.

The gui4j default implementation of Gui4jRexourceProvider will only be=20
able to read from files. Other implementations (like yours) will have to=20
cover other situations.

I'll keep you informed about the progress on this topic.

Thanks,
Kay=20

----------------------------------------------------------------
beck et al. projects GmbH
Theresienh=F6he 13, D-80339 M=FCnchen
+49 89 544 253-14
mailto:Kay...@be...
http://www.bea-projects.de
----------------------------------------------------------------

"Rahul Shrivastava" <shri=5F...@ho...> wrote on 21.09.2005 02:27:06:

> Hi Kay
>=20
> Even i tried to change the source code but too many files required=20
changing=20
> and had to give up on that idea. Currently i am not using the import=20
> functionality but i will be using it in the future.  The purpose of=20
using=20
> GUI4J was - messages are sent to me over the socket from a c/c++ program =

and=20
> these messages are xml. The java program uses these messages to display=20
> dialog boxes and other small GUI frames.
>=20
> So let me reiterate what u said in you mail - just to be clear. So you=20
> create an interface Gui4jResourceProvider which I can implement in any=20
way i=20
> want and provide you with the resource object. You take this object and=20
load=20
> the xml from it. So what i would want to know is that if you read from=20
the=20
> class that implements Gui4jResourceProvider - how do you read from it,=20
is it=20
> a StringBuffer that you read from or is it an InputStream that you read=20
from=20
> or it is something else. I do not want to convert the InputStream into a =


> file resource from which you can already read.
>=20
> Thanks
> Rahul
>=20
>=20
>=20
>=20
>=20
> ----Original Message Follows----
> From: KayKr=FCger-Barvels <Kay...@be...>
> To: gui...@li...
> Subject: Re: [Gui4j-user] how to read xml from an InputStream
> Date: Fri, 16 Sep 2005 16:56:19 +0200
>=20
> Hi again,
>=20
> I'm afraid it turns out that we have to change a little bit more
> internally in order to encapsulate the mechanics of loading XML files in
> one central place. We'll have to postpone that to next week.
>=20
> Rahu, do you plan to use (or are you using) the include functionality of
> gui4j (<Include> element)? If so, how would you like to handle those
> includes if your original file was loaded in a custom manner and passed=20
to
> gui4j via an InputStream? Our current idea is that there's a new=20
interface
> named Gui4jResourceProvider and if you provide gui4j with an object of
> that type it will be responsible for loading all XML input, also for
> includes. That means, it is up to your implementation to interpret the
> "url" attribute of <Include>. The content of "url" does not necessarily
> need to be a real URL anymore, of course.
>=20
> Regards,
> Kay
>=20
>  >
>  > Hi,
>  >
>  > Reading in the xml is currently done via Java's Ressource mechanism,
>  > so it's not possible right now to simply read from a String or
> InputStream.
>  >
>  > I've talked to Joachim about this and we think it would be a useful
>  > addition to be able to chose one of several ways to read in the xml
>  > definition. We'll provide a central hook in the code for loading xml
>  > definitions so that it's possible to provide different
>  > implementations. The default way will be the current Resource
>  > mechanism. After the hook is in place it should be easy for you to
>  > implement any loading
>  > mechanism you like. We'll be happy to include your contribution into
>  > gui4j then.
>  >
>  > We'll send a note when the hook is in CVS...
>  >
>  > Thanks,
>  >
>  > Kay
>  >
>  >
>=20
>=20