Re: [sca-policy] *IBM Confidential: RE: [sca-policy] EXternal PolicyAttachment -- Issue 15

[ashok malhotra <ashok.malhotra@oracle.com>]

I think we need to enable both usecases.

Mike Rowley's usecase, where a specific External Policy Attachment file 
is associated with a contribution, can be
solved by a variation of the addDeploymentComposite verb.

Mike Edwards' usecase requires that the External Policy Attachment file 
indicate that it applies to all or some contributions
within a domain. My proposal goes in that direction but is not quite right.

Ashok

Mike Edwards wrote:

>
> Folks,
>
> I have a concern that this approach doesn't provide all the capability 
> that is needed for external policy attachment.
>
> What is described in Michael Rowley's note below (if I've understood 
> it correctly) is that EACH CONTRIBUTION
> must EXPLICITLY indicate which "external policy" files apply to the 
> contribution.
>
> I think this misses what I envisaged as a key use case:
>
> The ability for a system administrator/deployer to define a set of 
> policies that will be applied globally to all
> contributions, without the need to mark each contribution 
> individually. This:
>
> a) avoids the need for explict actions on each deployment
> b) allows changes to be made globally by changing the external 
> attachment documents themselves without
> the need to revisit every deployment
>
> Now - I understand that making a change of this type is VERY 
> significant. It could require the reployment of the
> entire domain in the worst case. However, if that is what is required, 
> then its required, however you go about it.
>
>
> Yours, Mike.
>
> Strategist - Emerging Technologies, SCA & SDO.
> Co Chair OASIS SCA Assembly TC.
> IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great Britain.
> Phone & FAX: +44-1962-818014 Mobile: +44-7802-467431
> Email: mike_edwards@uk.ibm.com
>
>
> *"Michael Rowley" <mrowley@bea.com>*
>
> 07/01/2008 18:47
>
> 	
> To
> 	"David Booz" <booz@us.ibm.com>, <sca-policy@lists.oasis-open.org>
> cc
> 	
> Subject
> 	RE: [sca-policy] EXternal Policy Attachment -- Issue 15
>
>
>
> 	
>
>
>
>
>
>
> I'll repeat some of what was said on the policy TC call here, so that 
> we have it in the thread.
>
> I believe that every artifact, including the external policy file 
> proposed here, should be associated with a contribution. However, this 
> does not mean that the external policy file needs to be packaged with 
> the contribution. We already have the precedent of the 
> addDeploymentComposite() logical operation, which allows a deployer to 
> create a deployment composite and associate it with a contribution. 
> This is useful, since _/any/_ work by the deployer should not require 
> that the packaging of a contribution be broken open. I think this file 
> should be similar. I don’t know if we should generalize the 
> addDeploymentComposite() to take multiple kinds of things, or add an 
> explicit new operation like addExternalPolicy(). Either would work for 
> me.
>
> Michael
>
>
> -----Original Message-----
> From: David Booz [mailto:booz@us.ibm.com]
> Sent: Wednesday, January 02, 2008 2:58 PM
> To: sca-policy@lists.oasis-open.org
> Subject: Re: [sca-policy] EXternal Policy Attachment -- Issue 15
>
> Hi Ashok,
>
> I embedded questions into your proposal.
>
> (See attached file: Issue 15 - External SCA Policy Attachment -
> v2_dab2Jan2008.doc)
>
> Dave Booz
> STSM, SCA and WebSphere Architecture
> Co-Chair OASIS SCA-Policy TC
> "Distributed objects first, then world hunger"
> Poughkeepsie, NY (845)-435-6093 or 8-295-6093
> e-mail:booz@us.ibm.com
> http://washome.austin.ibm.com/xwiki/bin/view/SCA2Team/WebHome
>
>
>
> ashok malhotra
> <ashok.malhotra@o
> racle.com> To
> OASIS Policy
> 01/02/2008 11:53 <sca-policy@lists.oasis-open.org>
> AM cc
>
> Subject
> Please respond to [sca-policy] EXternal Policy
> ashok.malhotra@or Attachment -- Issue 15
> acle.com
>
>
>
>
>
>
>
>
>
> I'm attaching a revised proposal for External Policy Attachment.
> http://www.osoa.org/jira/browse/POLICY-15
> This assumes that the External Attachment file refers to the SCDL files
> it applies to by QName.
> I have some questions about this but Dave assures me that that's how 
> it is.
> -- 
> All the best, Ashok
> [attachment "External SCA Policy Attachment - v2.doc" deleted by David
> Booz/Poughkeepsie/IBM]
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-- 
All the best, Ashok