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dtrusty-U6r7FCv0h4VBDgjK7y7TUQ@public.gmane.org

2007-Sep-21 13:57 UTC

How do I "render" a Java applet from a controller?

Hi,

I need to render the results of another program, which are stored in
the form
of applets, each stored in their own directories.

The applet-related data is referenced in a plain html file, which
contains
statements like this:

<html>
    <head>
        <title>XOPmeet Playback</title>
    </head>
    <body TOPMARGIN=0 BOTTOMMARGIN=0 LEFTMARGIN=0 RIGHTMARGIN=0
MARGINHEIGHT=0 MARGINWIDTH=0 SCROLL="NO">
        <applet
            code=com.sts.webmeet.client.AWTClient.class
 
archive="webhuddle_voip.jar,clientproperties.jar,jl1.0.jar"
   .........

I can render the above plain html file from my controller with no
problems.  However,
the browser sees that applet tag and then sends in a GET request like
this:

   GET /report/play_webrec/com/sts/webmeet/client/AWTClient.class

That "com/...." part of the path is within one of the jar files.

I need to control access to the applets, so I cannot just place the
applet related
code in the public side of the web site.

How can I send applets from within a Rails controller?

Thanks!

David


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Robert Walker

2007-Sep-21 15:29 UTC

head link

Re: How do I "render" a Java applet from a controller?

Not sure if this is a problem, but the applet tag is deprecate in
favor of the object tag.Check the object tag syntax at http://www.w3.org.

On Sep 21, 9:57 am, "dtru...-U6r7FCv0h4VBDgjK7y7TUQ@public.gmane.org"
<dtru...-U6r7FCv0h4VBDgjK7y7TUQ@public.gmane.org>
wrote:> Hi,
>
> I need to render the results of another program, which are stored in
> the form
> of applets, each stored in their own directories.
>
> The applet-related data is referenced in a plain html file, which
> contains
> statements like this:
>
> <html>
>     <head>
>         <title>XOPmeet Playback</title>
>     </head>
>     <body TOPMARGIN=0 BOTTOMMARGIN=0 LEFTMARGIN=0 RIGHTMARGIN=0
> MARGINHEIGHT=0 MARGINWIDTH=0 SCROLL="NO">
>         <applet
>             code=com.sts.webmeet.client.AWTClient.class
>
> archive="webhuddle_voip.jar,clientproperties.jar,jl1.0.jar"
>    .........
>
> I can render the above plain html file from my controller with no
> problems.  However,
> the browser sees that applet tag and then sends in a GET request like
> this:
>
>    GET /report/play_webrec/com/sts/webmeet/client/AWTClient.class
>
> That "com/...." part of the path is within one of the jar files.
>
> I need to control access to the applets, so I cannot just place the
> applet related
> code in the public side of the web site.
>
> How can I send applets from within a Rails controller?
>
> Thanks!
>
> David

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dtrusty-U6r7FCv0h4VBDgjK7y7TUQ@public.gmane.org

2007-Sep-22 20:06 UTC

head link

Re: How do I "render" a Java applet from a controller?

On Sep 21, 10:29 am, Robert Walker
<rwalker...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Not sure if this is a problem, but the applet tag is deprecate in
> favor of the object tag.Check the object tag syntax athttp://www.w3.org.
>
> On Sep 21, 9:57 am,
"dtru...-U6r7FCv0h4VBDgjK7y7TUQ@public.gmane.org"
<dtru...-U6r7FCv0h4VBDgjK7y7TUQ@public.gmane.org> wrote:
>
> > Hi,
>
> > I need to render the results of another program, which are stored in
> > the form
> > of applets, each stored in their own directories.
>
> > The applet-related data is referenced in a plain html file, which
> > contains
> > statements like this:
>
> > <html>
> >     <head>
> >         <title>XOPmeet Playback</title>
> >     </head>
> >     <body TOPMARGIN=0 BOTTOMMARGIN=0 LEFTMARGIN=0 RIGHTMARGIN=0
> > MARGINHEIGHT=0 MARGINWIDTH=0 SCROLL="NO">
> >         <applet
> >             code=com.sts.webmeet.client.AWTClient.class
>
> > archive="webhuddle_voip.jar,clientproperties.jar,jl1.0.jar"
> >    .........
>
> > I can render the above plain html file from my controller with no
> > problems.  However,
> > the browser sees that applet tag and then sends in a GET request like
> > this:
>
> >    GET /report/play_webrec/com/sts/webmeet/client/AWTClient.class
>
> > That "com/...." part of the path is within one of the jar
files.
>
> > I need to control access to the applets, so I cannot just place the
> > applet related
> > code in the public side of the web site.
>
> > How can I send applets from within a Rails controller?
>
> > Thanks!
>
> > David


OK..I got it to work much better.  It turns out that the browser was
requesting the jar file, and if it encountered any error,
was trying to request that AWT class file (which is inside the jar
file).

I now have another interesting problem.  It seems that the browser
will request the same jar file multiple times, which I send
in my controller, via the send_file helper.   Since the browser
requests the same file many times (maybe up to 10 times),
the applet appears very slow.

I noticed that applets served from the public side of the web server
don''t have this problem.  The web server seems to send
some "304 Not Modified".   I tried to do this in my controller, but
the broswer/applet didn''t seem to like it.

Any ideas?

Thanks,

David


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Rails - Sep 2007 - How do I "render" a Java applet from a controller?

How do I "render" a Java applet from a controller?

Re: How do I "render" a Java applet from a controller?

Re: How do I "render" a Java applet from a controller?