From: Dom <dominant_seventh@...>
Date: 2009-04-05T09:31:30+09:00
Subject: Re: zlib Deflate to java.util.zip inflate problem

Thanks for the reply,

Sorry, should have been more clear, I'm not creating files.  I did  
find it, but it seems entirely focused on zip files; I'm just using  
the deflate/inflate to squeeze some data before sending it over the  
wire. Being that they're both based on zlib, you'd think that deflated  
from one would  be inflatable by the other and I was hoping that  
perhaps I'm just missing a setting or not using a correct parameter to  
one of the ruby calls. But, I've pretty much tried every permutation  
and cannot get the server to inflate the data. I'd think somebody's  
doing this somewhere with success.

On Apr 4, 2009, at 4:39 PM, Jeff Schwab wrote:

> Dom wrote:
>> Hello, I'm a total ruby newbie and am developing a simple app that   
>> tests an  existing web app. Part of the request I need to post   
>> contains data that needs to be compressed as the web app will   
>> uncompress it. Currently, the java app just uses simple   
>> java.util.zip.Inflater to do this, and I've been able to do this  
>> from  cocoa to java no problem. Using Ruby to craft the data and  
>> post  request has presented a problem: when the web app gets the  
>> request,  I'm getting exceptions from java.utl.zip Unkown  
>> Compression format I  can't change the back end, only the ruby  
>> client side. Does anybody  know how to properly use the ruby zlib  
>> library to deflate data such  that java's built in classes can  
>> inflate it? Sorry if this is a basic  question; I've googled this  
>> to death and hit nothing but dead ends.
>
> Did you find rubyzip?  It doesn't seem to work under Ruby 1.9, but  
> it does have an interface supposedly modeled on java.util.zip:
>
>    http://rubyzip.sourceforge.net/
>
> It's hard to believe this didn't come up when you Googled.
>