Islandora CLAW

Latest CLAW News

New for Islandora CLAW: Docker and Ansible!

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Submitted by manez on

Thanks to support from the University of Manitoba, McMaster University, York University, the tireless work of developer Nigel Banks, and Q&A/testing by Project Director Nick Ruest, the Islandora Foundation is very happy to announce the development of a suite of new ways to work with Islandora CLAW:

These links represent a tremendous amount of work that will make it much easier for you to deploy and develop in Islandora CLAW. Moreover, this work illustrates that the CLAW architecture can be split out into its individual components, and scaled horizontally. If you're interested in learning more about how to develop with CLAW or want to be a part of the project, please consider attending our weekly CLAW Tech Calls, or taking in our run of CLAW development webinars - more info here.

The State of the CLAW

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Submitted by nruest on

The state of the work is that is in progress. Like Fedora 4, CLAW is a complete rewrite of the entire Islandora stack. It is a collaborative community effort, and needs the resources of the community. An update on the project was included in the most recent Islandora Community Newsletter. You can check that out here.

  • We have weekly CLAW Calls that you are more than welcome to join us on, and add items to the agenda.
  • We send updates to the list each week after each call, and you can view them all here.
  • We have monthly sprints which are held during the last two weeks of the month. If you (or your colleagues) are in a position to join, you are more than welcome to join us there too.
  • We also have weekly CLAW lessons which are led by Diego Pino Navarro. You can find more information on them here.
  • Data model, and Hydra interoperability? We're working on implementing the Portland Common Data Model (PCDM). More is available on that here and here.

If you want to see CLAW completed faster, you can help! 

  • Contribute developer time. Either your own, or some developer time from your institution. Not comfortable with the stack? Thats what CLAW lessons are for!
  • Contribute funds: The Islandora Foundation is very close to having the necessary membership funding to hire a Technical Lead, who could devote a lot more time to coordinating the development of CLAW than our current volunteer team has available. Joining the Islandora Foundation has many benefits, but adding a Technical Lead to the project will be a big one in the CLAW corner.
  • Contribute opinions: We need to know how you want CLAW to work. You are welcome to attend the weekly CLAW Call detailed above. Please also watch the listserv for questions about features and use cases.

Islandora CLAW Lessons: Starting March 1st

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Submitted by manez on

Looking ahead to Fedora 4? Interested in working with Islandora CLAW? Want to help out but don't know where to start? Want to adopt it and need some training? CLAW Committer Diego Pino will be giving a several-part series of lessons on how to develop in the CLAW project, starting March 1st at 11AM EST and continuing weekly until you're all CLAW experts. These will be held as interactive lessons via Google Hangouts (class size permitting). Registration is completely free but spaces may be limited. Sign up here to take part.

Islandora CLAW Community Sprint 002 - Complete!

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Submitted by manez on

The Islandora community just wrapped up its second volunteer sprint on Islandora CLAW. The first sprint, back in November, was a broad introduction with a focus on documentation and knowledge transfer. This time around we switched gears and put the emphasis on writing code, with a smaller team made up of developers and most of the Islandora CLAW Committers, working on tasks relating to porting the existing Java based services to PHP services. The team for this sprint was:

  • Nick Ruest
  • Jared Whiklo
  • Diego Pino
  • Nigel Banks

Their numbers were small but their accomplishments were great. Diego takes the MVP award for this sprint, tackling the resource PHP service and working through API improvements for Chullo, the CLAW equivalent of Tuque. Jared did some updates for our vagrant installer. Nick coordinated the sprint and put up an updated the Islandora PCDM diagrams. Nigel worked on integration testing and came away with a plan to redo the CLAW build scripts in Ansible. The whole crew worked together throughout the sprint, strategizing and reviewing each other's code.

The next sprint will be in the new year, running January 18 - 29. It will be another focussed, developer-driven sprint, so if you are interested in digging into the code behind CLAW and making a contribution, please sign up! If you have any questions about contributing to a sprint in the future, please do not hestitate to contact CLAW Project Director, Nick Ruest.

Islandora CLAW Community Sprint 001 - Complete!

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Submitted by manez on

Back in September, the Islandora community completed its first volunteer sprint, a maintenance sprint on Islandora 7.x-1.x that cleaned up 38 tickets in advance of the 7.x-1.6 release (November 4th). For our second sprint (and likely for all sprints in the future), we moved over to Islandora's future and did our work on Islandora 7.x-2.x (also known as CLAW). With CLAW being very new to the vast majority of the community, we put the focus on knowledge sharing and exploring the new stack, with a a lot user documentation and discussion tickets for new folks to dig their teeth into. A whopping 17 sprinters signed up:

  • Nick Ruest
  • Jared Whiklo
  • Melissa Anez
  • Kim Pham
  • Diego Pino
  • Brad Spry
  • Caleb Derven
  • Lingling Jiang
  • Danny Lamb
  • Don Moses
  • Lydia Z
  • Luke Wesley
  • Kelli Babcock
  • Chul Yoon
  • Sunny Lee
  • Peter Murray
  • Nigel Banks

We got started on Monday, November 2nd with a live demo of CLAW provided by Nick Ruest and Danny Lamb, which has been recorded for anyone who'd like to take it in on their own time:

And then a virtual meeting to discuss how we'd approach the sprint and hand out tickets. As with our previous sprint, we mixed collaboration with solo work, coordinating via the #islandora IRC channel on freenode and with discussion on GitHub issues and pull requests. We stayed out of JIRA this time, doing all of our tracking with issues right in the CLAW GitHub Repo. In the end, we closed up nine tickets, and there should be extra kudos for Donald Moses from UPEI, who was the sprint MVP with his wonderful user documentation:

The existing CLAW Committers also tackled some more technical issues, such as Solr provisioning in vagrant or setting up the CLAW vagrant to easily deploy on Digital Ocean or Amazon Web Services.

Nick Ruest put together a pretty awesome visualization of work on CLAW so far, where you can see the big burst off activity in November from our sprint:

You should also note that even in the early days of the project, activity on the code is usually followed up by activity on the documentation - that's a deliberate approach to make documenting CLAW an integral part of developing CLAW, so that when you are ready to adopt it, you'll find a rich library of technical, installation, and user documentation to support you.

With the success of the first two sprints, we are going to start going monthly. The next sprint will be December 7th - 18th and we are looking for volunteers to sign up. This sprint will have a more technical focus, concentrating on improvements in a single area of the stack; PHP Services. We're especially looking for some developers who'd like to contribute to help us reach our goals. That said, there is always a need for testers and reviewers, so don't be afraid to sign up even if you are not a developer.

PHP Services description: Have the majority of RESTful services pulled out of the CMS context, and exposed so that Drupal hooks or Event system can interact with them. We've already implemented two (images and collections) in Java, and we'd like to start by porting those over. These services will handle operations on PCDM objects and object types. There are lots of different ways to do this (Silex, Slim, Phalcon, Symfony, etc...), but the core idea is maintaining these as a separate layer.

What about Chullo?

Chullo will be the heart of the micro services. If everything is written properly the code reuse will allow for individual services to be a thin layer to expose the Chullo code in a particular context.


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