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From "James M Snell" <jasn...@us.ibm.com>
Subject Re: Proposal to contribute WSIL4J to Apache Axis
Date Wed, 29 May 2002 18:50:49 GMT
+1 to this, but as with the WSIF stuff, I'd like to see it in it's own 
project and it's own package.

CVS Project:      xml-axis-wsil
Java Package: org.apache.wsil

If this is accepted, I would like to be one of the committers for this 
project.

- James M Snell/Fresno/IBM
    Web services architecture and strategy
    Internet Emerging Technologies, IBM
    544.9035 TIE line
    559.587.1233 Office
    919.486.0077 Voice Mail
    jasnell@us.ibm.com
 Programming Web Services With SOAP, O'reilly & Associates, ISBN 
0596000952 

==
Have I not commanded you?  Be strong and courageous.  Do not be terrified, 

do not be discouraged, for the Lord your God will be with you wherever you 
go.  
- Joshua 1:9

Please respond to axis-dev@xml.apache.org 
To:     axis-dev@xml.apache.org
cc: 
Subject:        Proposal to contribute WSIL4J to Apache Axis



Last November, IBM and Microsoft jointly released the Web Services 
Inspection Language (WS-Inspection) specification [1].  The WS-Inspection 
specification defines a distributed Web service discovery method, which 
was complementary to the centralized service discovery method defined by 
UDDI.  WS-Inspection defines a method for inspecting a web site for 
references to Web service descriptions. 

While working on the IBM Web Services Toolkit, we developed a set of Java 
classes for accessing and parsing existing WS-Inspection documents, as 
well as programmatically creating new documents.  This code is referred to 
as WSIL4J.  We are interesting in contributing this code to Apache Axis, 
since we'd like to promote the implementation of a WS-Inspection interface 
in Axis.  This interface would return the current list of deployed 
services in a WS-Inspection document.  For example, if you invoke 
Axis-based services at http://hostname:80/axis/services, then http://hostname:80/axis/inspection.wsil
might be the location where you could get a WS-Inspection document that 
contained a list of deployed services.

You can download the current WSIL4J package at http://www.apache.org/~dug/wsil4j-v1.zip. 
In addition to the source code, this zip file contains a README file, a 
docs directory with the WSIL spec and a WSIL overview article that I 
wrote, a couple of sample applications, and an ANT build script.  In 
addition to building the source code and samples, the build script will 
generate the javadoc for this code.  Currently the source code uses 
com.ibm.wsil.* for the package names.  If this becomes a part of Axis, 
then the package name should change to something like org.apache.wsil.* or 
org.apache.axis.wsil.*.  Also, this code would be made available under the 
standard Apache license.

Please note that parts of this package have a dependency on the open 
source WSDL4J and UDDI4J code (http:.//www.uddi4j.org).  The WS-Inspection specification defines
two sets of extension 
elements:  one for WSDL and one for UDDI.  WSDL4J is used when processing 
WSDL based service descriptions, and UDDI4J is used when processing the 
UDDI extension elements (since some of these elements are the same 
elements that are defined by UDDI).  The WSIL4J package also has a QName 
class, which should be replaced by the one used in Axis.

Below, I've listed a set of resources where you can get more information 
on WS-Inspection.  You can also see an example of a WS-Inspection document 
at http://www.xmethods.net/inspection.wsil.  This document contains references to all of the
Web service 
descriptions available at the XMethods site.

We would be interested in any feedback on our  proposal to contribute this 
code to Apache Axis. 

Thanks,
Peter Brittenham
IBM Emerging Technologies

Resources:
1. Web Services Inspection Language Specification
 http://www.ibm.com/developerworks/webservices/library/ws-wsilspec.html
2. An overview of the Web Services Inspection Language
http://www.ibm.com/developerworks/webservices/library/ws-wsilover
3. The WS-Inspection and UDDI Relationship 
http://www.ibm.com/developerworks/webservices/library/ws-wsiluddi.html
4. WSIL: Do we need another Web Services Specification?
http://www.webservicesarchitect.com/content/articles/modi01.asp



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