OSLC Open Source Proposal

Some OSLC community members are drafting a proposal for a companion open source project in support of the OSLC specification efforts occurring at http://open-services.net. 

The OSLC Open Source Project is planned to be hosted at SourceForge.net and possibly include:

• test suites for testing OSLC service provider implementations  *** initial contribution planned by IBM
• reference implementations of OSLC core and domain services for use in testing OSLC clients *** contribution planned by IBM
• sample code and applications *** contribution planned by IBM
• tools, models, pictures, etc. used in the specification process
• specification artifacts that need to be under version control (e.g. namespace documents)

The proposal and project are going to defined and maintained by a core set of committers as defined in the proposal.

This project will look to align with other appropriate open source projects such as Eclipse, Apache, etc  if and when needed. The focus of this OSLC open source project is narrowly on specification and implementation validation.

Please respond to this email thread or reply to this posting.

OSLC reference implementations and test suites

There have been a number of implementation efforts underway for various OSLC specifications.
I've heard many requirements including...

for Service Providers:

• A hosted reference implementation that can react to client consumer requests, to ensure consistent behavior across implementations
  
• Make the source code available for download
• Allow contributions to the source
• The language it is written in is less important, though some tend towards JEE based
• A client testsuite that can give level
• Samples that highlight key integration scenarios
• A framework in which to quickly enable new implementations
  

for Consumers:

• A hosted reference implementation that can react to client consumer requests
• A reference service provider that can provide feedback on consumer implementations (testsuite)
  
• Provide a variety of samples
  
• Java client samples and/or SDK
  
• Command-line or Perl based samples and/or SDK
  
• HTML/Javascript samples and/or SDK

Some current efforts underway:

• Eclipse Mylyn (client Java API)
  
• Helios (client and service provider PHP)
  

Some thoughts on technology basis for service provider reference implementation:

• Apache Wink - REST framework
• Jena
  - RDF/XML, Turtle parsers and generators
  - Apply custom rules for RDF/XML and Turtle
  - Add JSON support
  - Simple storage
  - Extended to support ResourceShapes
  - Query - mapping of query syntax - oslc.where/select
  - Resource subsets - oslc.properties
• OAuth - Provider only
  (need good consumer example)
• Service Discovery
  - Various models combinations of Catalogs and ServiceProviders
  
• Web UI
  - Simple example/demo HTML/JS
  - Prefill
  - Via a draft resource creation
  - Via direct prefill and redirect
  - UI Preview

Dave Johnson posted some thoughts as well here. Which are fairly close to this as well.

Feedback and additional requirements as needed.