Re: [ws-dd] RE: Issue 135 - DPWS - No reliable way to retrieve porttypes of services

[Elmar Zeeb <elmar.zeeb@uni-rostock.de>]

Dan Driscoll schrieb:

C9CCA2387EBB0A45A59320D243FE3DF91A5F30B18D@NA-EXMSG-W601.wingroup.windeploy.ntdev.microsoft.com" type="cite">

This makes sense—we want services to advertise all of their types.  I can’t think of any real reason why a service would want to omit its types (arguably “security” and size constraints—but I can’t think of a scenario where omitting types aids “security,” or where the types are too large to transmit).

A device implementer may omit types for message size constraints, but he can also take care when he designs the device, what he really should do when implementing dpws on devices with such high constraints.

C9CCA2387EBB0A45A59320D243FE3DF91A5F30B18D@NA-EXMSG-W601.wingroup.windeploy.ntdev.microsoft.com" type="cite">

 

We would probably want to make this change on both Host and Hosted services (along with Antoine’s changes for issue 127).

 

Thanks

--D

 

From: Ram Jeyaraman [mailto:Ram.Jeyaraman@microsoft.com]
Sent: Tuesday, December 16, 2008 8:34 AM
To: ws-dd@lists.oasis-open.org
Subject: [ws-dd] Issue 135 - DPWS - No reliable way to retrieve port types of services

 

This issue is assigned the number 135. For further discussions on this issue, please refer to this issue number or use this thread.

 

From: Elmar Zeeb [mailto:elmar.zeeb@uni-rostock.de]
Sent: Monday, December 15, 2008 3:38 PM
To: Ram Jeyaraman
Subject: New Issue for DPWS

 

Description: No reliable way to retrieve port types of services
Document: wsdd-dpws-1.1-spec-wd-02
Line number:

Both the service type fields of the relationship metadata and the WSDL section in an Get Response by a service are optional. There should be ONE way to retrieve the types, supported by a service. At the moment there is no reliable way to retrieve all types of an service. This problem exists especially for generic clients.

Proposed solution: Make types field in the Hosted field mandatory.

-- 

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  Dipl.-Inf. Elmar Zeeb

  Universität Rostock, Fakultät f. Informatik und Elektrotechnik

  Institut f. Angewandte Mikroelektronik und Datentechnik

  University of Rostock, Faculty of CS and EE

  Institute of Applied Microelectronics and Computer Engineering,

  18051 Rostock

  Deutschland/Germany

  Tel. : ++49 (0)381 498 - 7262

  Fax  : ++49 (0)381 498 - 7252

  Email: elmar.zeeb@uni-rostock.de

  www  : http://www.imd.uni-rostock.de/, http://www.ws4d.org/

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-- 
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  Dipl.-Inf. Elmar Zeeb
  Universität Rostock, Fakultät f. Informatik und Elektrotechnik
  Institut f. Angewandte Mikroelektronik und Datentechnik
  University of Rostock, Faculty of CS and EE
  Institute of Applied Microelectronics and Computer Engineering,
  18051 Rostock
  Deutschland/Germany
  Tel. : ++49 (0)381 498 - 7262
  Fax  : ++49 (0)381 498 - 7252
  Email: elmar.zeeb@uni-rostock.de
  www  : http://www.imd.uni-rostock.de/, http://www.ws4d.org/
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