Zip library for J2ME

[henson2K]

Hello!

Who know how I can compress data while sending via GPRS/WAP?

[doctordwarf]

Hmm, I think it's compressed already. Even wire modems have compression algorithms...

Well, I'm not sure, I suppose it's a good question for some GSM forum

If you find an answer, please post it here, I would like to know actual situation too

[henson2K]

In fact, only WML (i.e. XML) pages can be compressed by WAP gate in ordinary WAP connection. But I would like to use my own HTTP connection from midlet with large volume of binary data.

[doctordwarf]

I was thinking about lower level compression, somewhere at Transport or even Data Link layer. I cannot be sure that any GPRS tranfer is compressed, but I consider it being probable.

[henson2K]

I would like to use Zip/Unzip right in J2ME code.
And therefore I need simple tiny compression library ;-)
I don't care about other layers...

[doctordwarf]

Personally I think, that everything is transfered and stored compressed already.

But it's up to you if you want to try it out yourself

I can start looking here http://saloon.javaranch.com/cgi-bin/...&f=41&t=000477

and here http://www11.informatik.tu-muenchen....e-summary.html

[wesbiggs]

You can use the implementation of java.util.zip.* from the GNU Classpath project (if you obfuscate).

The full JAR ends up being about 42K, but an obfuscator will shrink that down considerably.

http://www.gnu.org/software/classpath

Wes