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From David Wood <daw...@us.ibm.com>
Subject Re: Additional function for contribution
Date Fri, 23 Jan 2009 17:42:46 GMT
Certainly we haven't changed the policy (SPL) syntax, although we have 
added a header that appears in SPL comments.  The header (in JSON) format 
provides metadata about the policy (name, description, name/value pairs, 
type, etc),  This metadata, along with import information, is used to 
match a PEP's evaluation request with applicable policies.  We've recently 
done some performance analysis also, and it shows we can get about 12K 
policies/sec (memory repository) and 4K policies/sec (JDBC). 

Yes, I'd be interested to hear what others thinks too.  Look forward to 
hearing from you.

David Wood 
Network Server System Software Group
IBM TJ Watson Research Center
dawood@us.ibm.com
914-784-5123 (office), 914-396-6515 (mobile)




From:
Neeraj Joshi/Durham/IBM@IBMUS
To:
imperius-dev@incubator.apache.org
Date:
01/23/2009 11:24 AM
Subject:
Re: Additional function for contribution



Hi David,
This looks good to me! I like the concept of having PEP and PDP. Looks 
like the policy syntax
is unchanged here only the usage has changed.

I would be interested in what Reza and Mark have to say based on their 
experience of using Imperius
and how much of an effort it would be for them to move to the new model ?

In any case I think this would be a great addition to Imperius.

Thanks
Neeraj
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"The light at the end of the tunnel...may be you"

 
Neeraj Joshi
WebSphere XD - Compute Grid
AIM, IBM
Apache Imperius - http://incubator.apache.org/imperius
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



From:
David Wood/Watson/IBM@IBMUS
To:
imperius-dev@incubator.apache.org
Date:
01/23/2009 09:41 AM
Subject:
Re: Additional function for contribution




Ok,  I'll try sending it as a zip file... 



David Wood 
Network Server System Software Group
IBM TJ Watson Research Center
dawood@us.ibm.com
914-784-5123 (office), 914-396-6515 (mobile)



From: 
David Wood/Watson/IBM@IBMUS 
To: 
imperius-dev@incubator.apache.org 
Date: 
01/23/2009 08:59 AM 
Subject: 
Additional function for contribution





Given the recent "activity" discussion, perhaps now is the time to 
repropose some work we've done at IBM to layer additional functionality on 

top of what is already in Imperius.  The attached is non-confidential and 
describes our work... 




David Wood 
Network Server System Software Group
IBM TJ Watson Research Center
dawood@us.ibm.com
914-784-5123 (office), 914-396-6515 (mobile) 
[attachment "WPML-Dev-Guide.zip" deleted by Neeraj Joshi/Durham/IBM] 




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