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From Davanum Srinivas <dava...@gmail.com>
Subject Re: Proposal for Woden sub-project of Apache Web Services
Date Thu, 07 Apr 2005 14:49:07 GMT
Dear Incubator PMC,

Since there has not been any objection. i am planning to do the infra
related work ASAP.

thanks,
dims

On Mar 24, 2005 10:51 AM, John Kaputin <KAPUTIN@uk.ibm.com> wrote:
> Please find below a plain text version of the incubator proposal for the
> 'Woden' project. The PDF version is attached at the end of this email.
> 
> =================================================
> 
> Woden Proposal
> 
> Project Proposal
> 
> March 2005.
> 
> The Woden project is proposed as a subproject of the Apache Web Services
> Project to develop a Java class library for reading, manipulating, creating
> and writing WSDL documents, initially to support WSDL 2.0 but with the
> longer term aim of supporting past, present and future versions of WSDL.
> 
> There are two main deliverables: an API and an implementation. The Woden
> API will consist of a set of Java interfaces. The WSDL 2.0-specific portion
> of the Woden API will conform to the W3C WSDL 2.0 specification. The
> implementation will be a high performance implementation directly usable in
> other Apache projects such as Axis2.
> 
> Members of the WSDL4J team, Apache Axis, Eclipse and W3C will collaborate
> on this project. The Axis2 community have already put some effort into a
> WSDL 2.0 Architecture. The Eclipse Web Tools project has experience in
> developing WSDL validators and one of its members is also a member of the
> W3C WSDL 2.0 Working Group.
> 
> Potential applications:
> - Axis2, build time emitters and runtime parsing
> - Eclipse tools, WSDL editors
> - vendor products
> - user applications
> 
> About the name "Woden" :
> - Woden is a mnemonic for Web service Description (i.e. WoDen).
> - Woden is a Norse god and naming the project after a god is in keeping
> with other WS-Apache project names like Apollo, Hermes and Muse.
> - Woden invented a form of writing called Runes (i.e. a form of
> Description).
> - The symbol CEN in Runes looks like '<', a left angle bracket, which may
> suggest we can trace the origins of XML back to Woden!
> 
> Rationale
> 
> There are current requirements for a WSDL 2.0 processor (e.g. Axis2,
> Eclipse tools, the WSDL4J community). This demand is expected to increase
> when the W3C issues a Recommendation for WSDL 2.0.
> 
> The W3C WSDL 2.0 specification is currently at the 'Call for
> Implementations' stage, which expects two independent implementations
> before progressing to the implementation review stage and then on to a W3C
> Recommendation. A WSDL 2.0 Java implementation from Apache in response to
> this call could help verify the quality of the specification and improve
> its implementation experience.
> 
> Previous WSDL processors have been version specific, such as WSDL4J which
> is tightly bound to WSDL 1.1.  In the longer term the Woden project could
> take the experience gained developing previous WSDL processors and deliver
> a WSDL processing 'framework' that could accommodate future WSDL
> specifications without the need to completely rewrite the processor.
> 
> We anticipate that implementations of the Woden API will also be developed
> by other projects for specific applications (e.g. the Eclipse Web Tools
> project may develop an EMF based implementation to support WSDL 2.0
> editors, as it has done with JWSDL for WSDL 1.1).  A common API will be a
> good candidate for future standardization on a WSDL processing API.
> 
> Scope
> 
> In the short term, the scope of the Woden project is:
> - A WSDL 2.0 API that will significantly cover the W3C WSDL 2.0
> specification, including the WSDL 2.0 Component Model, Soap bindings and
> message exchange patterns and XSD schema typing.
> - A high performance implementation of the API with read-write capability,
> but optimized for run time applications rather than build time tooling .
> - Fast, efficient XML parsing (e.g. StAX-based).
> - A validator component that will provide optional WSDL validation, both
> schema validation and semantic validation.
> - An Ant task for command line usage based on Ant XMLValidate .
> - Support usability and flexibility across different usage scenarios
> through the handling of behaviour such as I/O, error reporting, progress
> monitoring, memory efficiency and thread safety.
> 
> Longer term, Woden's scope will include:
> - Full support for remaining parts of the W3C WSDL 2.0 specification, such
> as other protocol and type extensions.
> - A Woden framework based on an extendable architecture that will allow for
> known or future versions of WSDL to be plugged in, rather than hard coded
> in the core of the WSDL processor (e.g. plugging in WSDL 1.1 support).
> - A pluggable choice of XML parsing and object representation to support
> particular usage scenarios (e.g. a StAX-based, DOM-free XML model for a
> runtime application versus a DOM-based model for build time tooling).
> 
> Initial Source
> 
> IBM will donate the WSDL4J source code. Although WSDL4J is the reference
> implementation of JSR110 (Java APIs for WSDL), Woden will not be an
> implementation of JSR110. WSDL4J is specific to WSDL 1.1 but some of the
> code and the intellectual property may be reused to develop a WSDL 2.0
> processor.
> 
> Resources to be created
> 
> Mailing Lists:
>        woden-dev
>        woden-user
> 
> SVN Repository:
>        ws-woden
> 
> Issue Tracking:
>        JIRA
> 
> Apache Sponsor
> 
> The Champion of the Woden incubator project is Davanum Srinivas
> (dims@apache.org).
> 
> The Sponsor of Woden is the Apache Web Services PMC.
> 
> Initial Committers
> 
> Chathura Herath (chathura@opensource.lk, WS-Apache Axis)
> Jeremy Hughes (hughesj@apache.org, WSDL4J)
> John Kaputin (jakaputin@gmail.com, WSDL4J)
> Lawrence Mandel (lmandel@ca.ibm.com, Eclipse Web Tools (WTP) / Eclipse Web
> Service Validation Tools (WSVT) )
> Arthur Ryman (arthur.ryman@gmail.com, Eclipse Web Tools (WTP) / W3C WSDL
> 2.0 Working Group)
> 
> Incubator Mentors:
> Paul Fremantle (pzf@hursley.ibm.com)
> Sanjiva Weerawarana (sanjiva@opensource.lk)
> 
> Relevant links:
> 
> Eclipse Web Service Validation Tools (WSVT) - http://www.eclipse.org/wsvt
> Eclipse Web Tools (WTP) - http://www.eclipse.org/webtools
> W3C WSDL 2.0 Working Group - http://www.w3.org/2002/ws/desc/
> WSDL4J - http://sourceforge.net/projects/wsdl4j/
> 
> =================================================
> 
> (See attached file: Woden Proposal.pdf)
> 
> 
> John Kaputin
> Web Services Development
> Hursley Laboratory
> IBM UK Ltd, MP211, Hursley Park, Winchester, SO21 2JN, UK.
> email:  kaputin@uk.ibm.com
> Tel: +44 (0)1962 817363  (internal 7-247363).  Fax: +44 (0)1962 842327
> 


-- 
Davanum Srinivas - http://webservices.apache.org/~dims/

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