Enumerating a jar file

[Ike]

If I have an applet, with a path in it, say, GG.icons , and I want to
enumerate through each filename in GG.icons, EXCEPT that GG.icons is in the
same jar as my applet iteslf which is trying to enumerate through it....how
in the wild, wild world-o-sports can I do that? Does anyone have any idea?
Thanks, Ike

 

[Tony Morris]

You load it as a resource.
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Class.html#getResource(java.lang.String)

--
Tony Morris
(BInfTech, Cert 3 I.T., SCJP[1.4], SCJD)
Software Engineer
IBM Australia - Tivoli Security Software
(2003 VTR1000F)

 

[Ike]

Yes, but thats not what I need to know - rather, I need to know how I can
iterate through a "directory" within the jar file that this applet resides
in. -Ike

You load it as a resource.
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Class.html#getResource(java.lang.String)

--
Tony Morris
(BInfTech, Cert 3 I.T., SCJP[1.4], SCJD)
Software Engineer
IBM Australia - Tivoli Security Software
(2003 VTR1000F)

If I have an applet, with a path in it, say, GG.icons , and I want to
enumerate through each filename in GG.icons, EXCEPT that GG.icons is in the
same jar as my applet iteslf which is trying to enumerate through it....how
in the wild, wild world-o-sports can I do that? Does anyone have any idea?
Thanks, Ike

 

[Tony Morris]

Since your requirements seem to be somewhat contradictory, perhaps I can
suggest looking at JarInputStream ? Otherwise, I'm completely baffled as to
what you are trying to achieve.

Requires clarification:

"If I have an applet, with a path in it, say, GG.icons "
Applets don't have paths in them. Perhaps the JAR contains an applet as well
as other things ?
GC.icons is a file (or directory) within the JAR ?

"enumerate through each filename in GG.icons"
Should I assume that GC.icons is a directory and you want each filename in
that directory ?

--
Tony Morris
(BInfTech, Cert 3 I.T., SCJP[1.4], SCJD)
Software Engineer
IBM Australia - Tivoli Security Software
(2003 VTR1000F)

Yes, but thats not what I need to know - rather, I need to know how I can
iterate through a "directory" within the jar file that this applet resides
in. -Ike

You load it as a resource.

http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Class.html#getResource(java.lang.String)

--
Tony Morris
(BInfTech, Cert 3 I.T., SCJP[1.4], SCJD)
Software Engineer
IBM Australia - Tivoli Security Software
(2003 VTR1000F)

If I have an applet, with a path in it, say, GG.icons , and I want to
enumerate through each filename in GG.icons, EXCEPT that GG.icons is

in
the

same jar as my applet iteslf which is trying to enumerate through it....how
in the wild, wild world-o-sports can I do that? Does anyone have any idea?
Thanks, Ike

 

[Ike]

"enumerate through each filename in GG.icons"
Should I assume that GC.icons is a directory and you want each filename in
that directory ?

Yes. This is what I am trying to do. Thanks Tony, Ike

 

[Tony Morris]

In that case,
You will want to load the JAR as a stream and enumerate each entry.
Following is code that I haven't tested, but you should get the general idea
(and perhaps reveal a better method after searching API docs.):

// http://java.sun.com/j2se/1.4.2/docs/api/java/util/jar/JarInputStream.html
JarInputStream in = new
JarInputStream(getClass().getResourceAsStream("GC.icons"));

// http://java.sun.com/j2se/1.4.2/docs/api/java/util/jar/JarEntry.html
JarEntry je;

while((je = in.getNextEntry()) != null)
{
//
http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/ZipEntry.html#isDirectory()
if(je.isDirectory())
{
System.out.println("Recursing down: " + je.getName());
// recursive call
}

System.out.println('\t' + je.getName());
}

// GOOD LUCK !

--
Tony Morris
(BInfTech, Cert 3 I.T., SCJP[1.4], SCJD)
Software Engineer
IBM Australia - Tivoli Security Software
(2003 VTR1000F)

 

[Andrew Thompson]

| If I have an applet, with a path in it, say, GG.icons , and I
want to
| enumerate through each filename in GG.icons,

JarFile.entries()