GSoC: JPEG2000 JPIP Server and Viewer Applet

OhioLINK was excited and privileged to participate in the second annual Google Summer of Code — a program to inspire young developers and provide students in Computer Science and related fields the opportunity to do work related to their academic pursuits during the summer, and to support existing open source projects and organizations. This is the first of three posts summarizing the efforts of three students; this one details the work of Juan Pablo Garcia Ortiz, a Ph.D. candidate at the University of Almeria in Spain, to build a JPEG2000 JPIP Streaming Server and Client Browser Viewer Applet. This is an edited version of his final report.

Why FEDORA? Answers to the FEDORA Users Interview Survey

The Fedora Outreach and Communications team is conducting a survey of the high-level sense of passion and commitment inherent in the Fedora community. I’ve posted some answers back to the FEDORA wiki on behalf of OhioLINK, and am also including the responses here as it fits into the “Why FEDORA?” series of blog postings. (If you are reading this through a RSS news reader, I think you’ll have to actually come to the DLTJ website and scroll down to the bottom of this post to see the table of contents of the series.) On with the responses!

XTF and FEDORA — Comments from the Community

Some questions and observations that have come in through mechanisms other than blog comments on the analysis of the XTF/FEDORA integration. I’ve reproduced those here for the sake of completeness, but also be sure to go back to the first two entries in this series to read the comments there as well.

Indiana University’s Observations


As it turns out, Indiana University is considering much the same path. They have an existing FEDORA-based repository and a number of XTF projects that have been in development for a while. They, too, are looking to put these two technologies together and have a page on their project website with Digital Repository Architecture > Search”>IU’s observations of an XTF plus FEDORA (plus more!) combination.

Analysis of CDL’s XTF textIndexer to Replace the Local Files with FEDORA Objects

This is a continuation of the investigation about integrating the California Digital Library’s XTF software into the FEDORA digital object repository that started earlier. This analysis looks at the textIndexer module in particular, starting with an overview of how textIndexer works now with filesystem-based objects and ending with an outline of how this could with reading objects from a FEDORA repository instead.

XTF’s Native File System handler

Natively, XTF wants to read content out of the file system. The core of the processing is done in these two class files:

TextIndexer.java

CDL’s XTF as a Front End to Fedora

We’re experimenting pretty heavily now with the California Digital Library‘s XTF framework as a front-end to a FEDORA object repository. Initial efforts look promising — thanks go out to Brian Tingle and Kirk Hastings of CDL; Jeff Cousens, Steve DiDomenico, and Bill Parod from Northwestern; and Ross Wayland from UVa for helping us along in the right direction.

XTF into Eclipse How-To


As we get more serious about XTF, I wrote up a How-To document for bringing XTF into Eclipse so that it can be deployed as a dynamic web application. Let me know if you find it useful. Definitely let me know if you find it in error. We haven’t put a version of XTF into OhioLINK’s source code repository, but that might follow shortly.

Integration announced for DPubS (e-journal publishing system) and FEDORA (digital object repository)

The August 2006 edition of “The DPubS Report” produced by Cornell University Libraries for the DPubS community announced work underway at the Penn State to bridge the worlds of DPubS and FEDORA. Here is the line from the newsletter:

--------------------------------------------------------------------------SOFTWARE DEVELOPMENT UPDATE--------------------------------------------------------------------------[...]NEAR-TERM SCHEDULED WORK[...]* Penn State is working on Fedora interoperability. The plan is tohave that capability in the September release, with a working versionfor testing in late August.

The newsletter goes on to say that the work will be made available under an open source license, so I for one can’t wait to see what it looks like and how we might apply it to our own needs.

Access Management and Provisioning Technology

Building on the shoulders of others — isn’t that how that quote goes? There has been a stack of printouts on my desk for a while now for various access management and service provisioning technologies. Rather than keep the paper, I’m putting the list here so I know how to get back to them if/when I need to. (Of course, along the way if you’d like to comment on them or suggest others to look at, please feel free to do so in the comments.) Note, too, that by listing them here I’m not proposing, or even sure if, all of these pieces come together to a coherent structure.

Heads up! International Conference on Open Repositories (01/23/07 – 01/27/07, San Antonio, TX, US)

Open Repositories 2007 is coming up next year, and it looks to be an interesting meeting. The first day is open user group meetings for DSpace, Fedora, and Eprints, followed by general conference sessions that cover issues that cut across all of the open repository systems. This year, the user groups will partition their programs into Plenary, Technical Issues, and Management Issues and the partitions will be staggered so that IT managers can attend all plenary sessions, technical staff can attend all technical sessions, etc.