Retrieving Sounds from a Jar file

[BlackHawke]

Hello!

In our game package (www.andromedaonline.net) we are having problems with
sounds. We have placed them in a jar file, and are trying to access them
from there.

The jar file has a directory structure. A number of sounds have the same
name, but are in a different directory (for example, our game has 5 races.
Each race has the same set of sounds- button clicks, etc, but the actual
sound is different).

We've attempted doing this (for buttonClickSoun d, made when a player hits a
button):

soundJar = new JarResources("A ndromedaSFX.jar ");
URL clickSoundURL = new
URL(soundJar.ge tResource("/com/Andromeda/sounds/main/Main-click.wav"));
buttonClickSoun d = Applet.newAudio Clip(clickSound URL);

However soundJar.getRes ource returns BYTE and we need STRING in the above
example. we replaced "clickSound URL" with:

URL clickSoundURL = PreGamePanel.cl ass.getResource ("Main-click.wav");

but that returns a null pointer exception (presumably because I don't have
the directory structure... Nor do I know how it's supposed to know which jar
file to get the file from in the second example).

Nobody here has any experience with accessing .wav files from a jar file. We
would greatly appreciate any help one could offer.

Thank you for your time.

Nick Soutter

[Ryan Stewart]

Re: Retrieving Sounds from a Jar file

"BlackHawke " <blackhawke@leg acygames.net> wrote in message
news:jtXTb.1216 4$uM2.6775@news read1.news.pas. earthlink.net.. .[color=blue]
> Hello!
>
> In our game package (www.andromedaonline.net) we are having problems with
> sounds. We have placed them in a jar file, and are trying to access them
> from there.
>
> The jar file has a directory structure. A number of sounds have the same
> name, but are in a different directory (for example, our game has 5 races.
> Each race has the same set of sounds- button clicks, etc, but the actual
> sound is different).
>
> We've attempted doing this (for buttonClickSoun d, made when a player hits[/color]
a[color=blue]
> button):
>
> soundJar = new JarResources("A ndromedaSFX.jar ");
> URL clickSoundURL = new
> URL(soundJar.ge tResource("/com/Andromeda/sounds/main/Main-click.wav"));
> buttonClickSoun d = Applet.newAudio Clip(clickSound URL);
>
> However soundJar.getRes ource returns BYTE and we need STRING in the above
> example. we replaced "clickSound URL" with:
>
> URL clickSoundURL = PreGamePanel.cl ass.getResource ("Main-click.wav");
>
> but that returns a null pointer exception (presumably because I don't have
> the directory structure... Nor do I know how it's supposed to know which[/color]
jar[color=blue]
> file to get the file from in the second example).
>
> Nobody here has any experience with accessing .wav files from a jar file.[/color]
We[color=blue]
> would greatly appreciate any help one could offer.
>
> Thank you for your time.
>
> Nick Soutter[/color]

Did you google this before posting? Seems to me I researched this same thing
not long ago and found some good suggestions in the archives. Search for
"getImageFromJa r". I think that's what I found. It should be easily
adaptable to any file type.

[BlackHawke]

Re: Retrieving Sounds from a Jar file

We have checked Google, AltaVista, and Java.sun.com

We successfully get many graphics files from our jar file.

The problem is that because the Applet.newAudio Clip method requires a
url/string, the same method to obtain graphics from a jar file can not be
used here. The graphics methods (which use "getResourc e"- included in my
sample) can not return strings.

Thanks for the thought, though. :(

Nick Soutter





"Ryan Stewart" <zzanNOtozz@gSP AMo.com> wrote in message
news:cMGdnRCvUp-V0L3dRVn-jQ@texas.net...[color=blue]
> "BlackHawke " <blackhawke@leg acygames.net> wrote in message
> news:jtXTb.1216 4$uM2.6775@news read1.news.pas. earthlink.net.. .[color=green]
> > Hello!
> >
> > In our game package (www.andromedaonline.net) we are having problems[/color][/color]
with[color=blue][color=green]
> > sounds. We have placed them in a jar file, and are trying to access them
> > from there.
> >
> > The jar file has a directory structure. A number of sounds have the same
> > name, but are in a different directory (for example, our game has 5[/color][/color]
races.[color=blue][color=green]
> > Each race has the same set of sounds- button clicks, etc, but the actual
> > sound is different).
> >
> > We've attempted doing this (for buttonClickSoun d, made when a player[/color][/color]
hits[color=blue]
> a[color=green]
> > button):
> >
> > soundJar = new JarResources("A ndromedaSFX.jar ");
> > URL clickSoundURL = new
> > URL(soundJar.ge tResource("/com/Andromeda/sounds/main/Main-click.wav"));
> > buttonClickSoun d = (clickSoundURL) ;
> >
> > However soundJar.getRes ource returns BYTE and we need STRING in the[/color][/color]
above[color=blue][color=green]
> > example. we replaced "clickSound URL" with:
> >
> > URL clickSoundURL = PreGamePanel.cl ass.getResource ("Main-click.wav");
> >
> > but that returns a null pointer exception (presumably because I don't[/color][/color]
have[color=blue][color=green]
> > the directory structure... Nor do I know how it's supposed to know which[/color]
> jar[color=green]
> > file to get the file from in the second example).
> >
> > Nobody here has any experience with accessing .wav files from a jar[/color][/color]
file.[color=blue]
> We[color=green]
> > would greatly appreciate any help one could offer.
> >
> > Thank you for your time.
> >
> > Nick Soutter[/color]
>
> Did you google this before posting? Seems to me I researched this same[/color]
thing[color=blue]
> not long ago and found some good suggestions in the archives. Search for
> "getImageFromJa r". I think that's what I found. It should be easily
> adaptable to any file type.
>
>[/color]

[chris]

Re: Retrieving Sounds from a Jar file

BlackHawke wrote:
[color=blue]
> Hello!
>
> In our game package (www.andromedaonline.net) we are having problems with
> sounds. We have placed them in a jar file, and are trying to access them
> from there.
>
> The jar file has a directory structure. A number of sounds have the same
> name, but are in a different directory (for example, our game has 5 races.
> Each race has the same set of sounds- button clicks, etc, but the actual
> sound is different).[/color]

I think you're looking for the jar URL hack. It looks like this:
jar:http://www.xxx.yyy/jarfile.jar!/mypackage/myclass.class
That's a URL meaning "fetch http://www.xxx.yyy/jarfile.jar and look inside
for a file called /mypackage/myclass.class". Of course the inner URL could
just as well be a local file.

This thing is so ugly I prefer not to talk about it too much. Enjoy.

--
Chris Gray chris@kiffer.eu net.be
/k/ Embedded Java Solutions

[Raymond DeCampo]

Re: Retrieving Sounds from a Jar file

BlackHawke wrote:[color=blue]
> Hello!
>
> In our game package (www.andromedaonline.net) we are having problems with
> sounds. We have placed them in a jar file, and are trying to access them
> from there.
>
> The jar file has a directory structure. A number of sounds have the same
> name, but are in a different directory (for example, our game has 5 races.
> Each race has the same set of sounds- button clicks, etc, but the actual
> sound is different).
>
> We've attempted doing this (for buttonClickSoun d, made when a player hits a
> button):
>
> soundJar = new JarResources("A ndromedaSFX.jar ");
> URL clickSoundURL = new
> URL(soundJar.ge tResource("/com/Andromeda/sounds/main/Main-click.wav"));
> buttonClickSoun d = Applet.newAudio Clip(clickSound URL);
>
> However soundJar.getRes ource returns BYTE and we need STRING in the above
> example. we replaced "clickSound URL" with:
>
> URL clickSoundURL = PreGamePanel.cl ass.getResource ("Main-click.wav");
>
> but that returns a null pointer exception (presumably because I don't have
> the directory structure... Nor do I know how it's supposed to know which jar
> file to get the file from in the second example).
>
> Nobody here has any experience with accessing .wav files from a jar file. We
> would greatly appreciate any help one could offer.
>
> Thank you for your time.
>
> Nick Soutter
>
>
>[/color]

I think you've made this too complicated. Why not put the jar
containing the files in the classpath? Then use:

URL url = this.getClassLo ader().getResou rce("/path/to/sound/file.au");

Ray

[BlackHawke]

Re: Retrieving Sounds from a Jar file

That did it, Thanks!!!


"chris" <chris@kiffer.e unet.be> wrote in message
news:c00t13$7e6 $1@reader08.wxs .nl...[color=blue]
> BlackHawke wrote:
>[color=green]
> > Hello!
> >
> > In our game package (www.andromedaonline.net) we are having problems[/color][/color]
with[color=blue][color=green]
> > sounds. We have placed them in a jar file, and are trying to access them
> > from there.
> >
> > The jar file has a directory structure. A number of sounds have the same
> > name, but are in a different directory (for example, our game has 5[/color][/color]
races.[color=blue][color=green]
> > Each race has the same set of sounds- button clicks, etc, but the actual
> > sound is different).[/color]
>
> I think you're looking for the jar URL hack. It looks like this:
> jar:http://www.xxx.yyy/jarfile.jar!/mypackage/myclass.class
> That's a URL meaning "fetch http://www.xxx.yyy/jarfile.jar and look inside
> for a file called /mypackage/myclass.class". Of course the inner URL could
> just as well be a local file.
>
> This thing is so ugly I prefer not to talk about it too much. Enjoy.
>
> --
> Chris Gray chris@kiffer.eu net.be
> /k/ Embedded Java Solutions
>[/color]

[BlackHawke]

Re: Retrieving Sounds from a Jar file

It is in the classpath. :(

This has been tried, didn't work.

Nick
"Raymond DeCampo" <rdecampo@spa m-I-am-not.twcny.rr.co m> wrote in message
news:_kbVb.4831 0$%72.21171@twi ster.nyroc.rr.c om...[color=blue]
> BlackHawke wrote:[color=green]
> > Hello!
> >
> > In our game package (www.andromedaonline.net) we are having problems[/color][/color]
with[color=blue][color=green]
> > sounds. We have placed them in a jar file, and are trying to access them
> > from there.
> >
> > The jar file has a directory structure. A number of sounds have the same
> > name, but are in a different directory (for example, our game has 5[/color][/color]
races.[color=blue][color=green]
> > Each race has the same set of sounds- button clicks, etc, but the actual
> > sound is different).
> >
> > We've attempted doing this (for buttonClickSoun d, made when a player[/color][/color]
hits a[color=blue][color=green]
> > button):
> >
> > soundJar = new JarResources("A ndromedaSFX.jar ");
> > URL clickSoundURL = new
> > URL(soundJar.ge tResource("/com/Andromeda/sounds/main/Main-click.wav"));
> > buttonClickSoun d = Applet.newAudio Clip(clickSound URL);
> >
> > However soundJar.getRes ource returns BYTE and we need STRING in the[/color][/color]
above[color=blue][color=green]
> > example. we replaced "clickSound URL" with:
> >
> > URL clickSoundURL = PreGamePanel.cl ass.getResource ("Main-click.wav");
> >
> > but that returns a null pointer exception (presumably because I don't[/color][/color]
have[color=blue][color=green]
> > the directory structure... Nor do I know how it's supposed to know which[/color][/color]
jar[color=blue][color=green]
> > file to get the file from in the second example).
> >
> > Nobody here has any experience with accessing .wav files from a jar[/color][/color]
file. We[color=blue][color=green]
> > would greatly appreciate any help one could offer.
> >
> > Thank you for your time.
> >
> > Nick Soutter
> >
> >
> >[/color]
>
> I think you've made this too complicated. Why not put the jar
> containing the files in the classpath? Then use:
>
> URL url = this.getClassLo ader().getResou rce("/path/to/sound/file.au");
>
> Ray
>
>[/color]