[gentoo-soc] Gsoc: Gentoo/Java integration Project Weekly report #!

[gentoo-soc] Gsoc: Gentoo/Java integration Project Weekly report #!

[Jiale Pan (Kyle Pan)]

Hi All,

My name is Kylepan and I'm working on Gentoo/Java integration Project. 
This is my first weekly report.

Here is the brief introduction of my project:
---------------------------------------------------------------------
The project includes an improvement to current java-config and a new 
eclipse-plugin. The plug-in, which when clicked, lists system installed 
java libraries for users to select and import into projects. This avoids 
user manually browses and locates system installed libraries, making 
developing more efficient and comfortable. The existing tool 
java-config, with some necessary improvements, is chosen as the data 
retrieval backend of this project. Jython is used to integrate 
java-config to the plug-in.This project will mainly benefit developers 
using eclipse, and due to planned work on improvements to java-config, 
it will benefit java-config project and even non-developer gentoo users 
as well.
----------------------------------------------------------------------

During the past few days I was devoting to the first step of my project 
--write a demo querying a variable of a java packge's package.env, whose 
function will be used in my project. And now the demo is completed and 
you can check in the 
repo(http://overlays.gentoo.org/svn/proj/java/projects/GenEclipse/trunk/) . 
It's an Eclipse project and should use my modified branch of 
java-config( 
http://overlays.gentoo.org/svn/proj/java/projects/java-config-2/branches/kylepan/java-config-2.1.9999k.ebuild)


issues:
All issues are about compatibility and seem a bit annoying:

As this project uses Jython to interpret python code, and the latest 
Jython implements Python 2.5 syntax.
The snippet of code like:
except UnexistingPackageError as e ( accepted in Python 2.6 and 3.1)
complains in Python 2.5.
while using:
except UnexistingPackageError, e (accepted in Python 2.5 and 2.6)
complains in Python 3.1

Since I have to use Jython , I have to use the later syntax, and it 
causes the errors in emerging my branch of java-config:

--------------------
* Compilation and optimization of Python modules for CPython 2.6 ...
  * Compilation and optimization of Python modules for CPython 3.1 ...
*** Error compiling 
/usr/lib64/python3.1/site-packages/java_config_2/EnvironmentManager.py ...
   File 
"/usr/lib64/python3.1/site-packages/java_config_2/EnvironmentManager.py", line 
59
     except InvalidVMError, ex:
                          ^
SyntaxError: invalid syntax
<<< 
/usr/lib64/python3.1/site-packages/java_config_2/EnvironmentManager.py[co [ 
!! ]
  * Updating desktop mime database ...
----------------------

One solution I think is directly patch the src before
"* Compilation and optimization of Python modules for CPython 3.1 ..."

So I would like to ask suggestions that is it feasible and acceptable?


Plans:
My plans for next week:
1. to solve that issue.
2. to add the query javadoc function to java-config




-- 
Best regards,
Jiale Pan(Kyle Pan)