Fedora Commons Developers List for FEDORA Repository Architecture ()

Mark Leggott | 6 May 2013 22:11

[fcrepo-dev] Open Repositories 2013 Conference Coming Soon to an Island Near You

Dear Repository Community,

Open Repositories 2013 is coming up soon - July 8-12 in beautiful Prince Edward Island. We had an awesome
response to the request for proposals and an initial list of sessions is available at:

 http://or2013.net/content/accepted-sessions

We are also getting final details in place for the Hackfest and Dev Challenge, but in the meantime we have an
initial information page available at:

 http://or2013.net/content/or-2013-dev-challenge-event

The Conference team is working hard on making sure the facilities are ready and that you also have an
engaging set of social activities to meet with your colleagues and have fun. We want to encourage you to
take advantage of our Early Bird registration, valid until May 10, after which the fee will go from $450 to
$495. We would also encourage you to book your flights and accommodation as soon as you can to make sure you
get a front row seat for what is shaping up to be a great conference. The main conference hotel (The Delta)
will be releasing room held back for OR attendees by May 10, so if you wish to stay at the Conference hotel
this is your chance to guarantee that will happen.

 http://or2013.net/content/loc/accommodations

We look forward to seeing you in PEI!

Sincerely,

Jon Dunn, Sarah Shreeves (Program Co-Chairs) and Mark Leggott (Conference Chair)
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Jie Chen | 2 May 2013 16:12

[fcrepo-dev] filesystem in fedora

Hi All,

Could anyone please help me on below questions?

I am just wondering how the file system works in Fedora Commons:

1. where are those html,image,video files located?

2. what is the mechanism for Fedora to protect those user imported files, in other words, how the system
ensure those files are available?

3.What if the hard disk is broken down, is there any way to restore those user's data/files?

4.it is said that there is a deamon  module to check the files from time to time, it is true? where can  I get any
documents about the APIs to communicate with that moudle?

Best regards,

Jay

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Edwin Shin | 25 Apr 2013 16:22

[fcrepo-dev] no committers call today

Since most of the committers are traveling in Boston-area today, no call today. Sorry for the late notice.
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jan schnasse | 18 Apr 2013 11:57

[fcrepo-dev] fcrepo build error repo.aduna-software.org

Hi all,

fcrepo and mulgara, both define dependencies to an old sesame 2.2.1 version which is not longer provided
via repo.aduna-software.org (the domain is not longer in use). This concerns all fcrepo 3.6.X versions
and the current snapshot on github. Is someone able to fix the problem?

Cheers
Jan

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jan schnasse | 16 Apr 2013 11:07

[fcrepo-dev] aduna repo down

Hi all,

it appears [1] that aduna is not longer publishing artifacts in their maven repository [2]. The aduna repository is down since yesterday. Now, I have problems to build my fedora project because fcrepo 3.6.X points to the aduna repo.

Best

Jan Schnasse

[1] <http://sourceforge.net/mailarchive/message.php?msg_id=30727718>

[2] <http://repo.aduna-software.org>

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Tayal, Nikhil | 3 Apr 2013 22:06

[fcrepo-dev] Need to keep Dublin Core information Fedora Object Headers at low level storage

Hi,

I have been working on sending DC fields information from Fedora to low level storage for the Fedora Object as file system headers.

I was able to get the information from DCFields for the DC datastream associated to the DigitalObject during creation of the Digital Object and send that as metadata in getMetadataForAboutToBeStoredObject method of FedoraHintsProvider Implementation that I did.

The concern I have now is that if I update the DC datastream later on(say add a description in the xml), it’s only the Datastream that gets updated at the low level storage but the Object headers at the low level storage are still the same although the corresponding DC data has changed.

Is there some way I can trigger an update of the associated Parent digital object too every time I update DC datastream?

Or, should I look at fixing this issue in some other way?

Thanks

Nikhil Tayal

Student Programmer

UIUC Digital Library Research Lab

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Tayal, Nikhil | 29 Mar 2013 20:19

[fcrepo-dev] Clean way to access DC metadata from DigitalObject

Hello,

I am currently working on developing an implementation of FedoraHintsProvider API which enables us to send hints from fedora to the low level store.

In the getHintsForObjectToBeStored, I can get a handle to the DigitalObject instance corresponding to my Fedora Object. What I need to do is to access the Dublin Core datastream metadata for the object and send that as the metadata. I was wondering if there is a clean way to access the Dublin core data given a DigitalObject. I am not convinced with the idea of parsing the Dublin Core datastream XML in order to get that information. I can see that DCFields class in the utilities package that has some information about the Dublin Core and I am wondering if I can somehow get an access to the handle of the instance of this class corresponding to the Dublin Core of my Fedora DigitalObject instance. Please let me know if I am thinking in the right direction.

Thanks,

Nikhil Tayal

Student Programmer

UIUC Digital Library Research Lab

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Uosukainen Liisa | 22 Mar 2013 10:59

[fcrepo-dev] How to configure GSearch/Solr and Fedora running on different servers

Hi,

I am trying to configure GSearch&Solr and Fedora to run on different servers. When GSearch, Solr and Fedora are running on the same server, everything works fine.

What has to be done in configurations when GSearch and Solr are moved to different server.

I modified fgsconfig-basic.properties in new server and changed:

fedoraBase=http://host1:8080

and run ant -f fgsconfig-basic.xml

Then I modified fedora.fcfg in another server and changed:

<comment>Fedora's Java Messaging Service (JMS) Module</comment>

After these modifications Fedoragsearch gfindObjects does not find anything and updateIndex shows error:

“Error getting API-M stub for repository: FgsRepos; nested exception is: org.apache.commons.httpclient.ConnectTimeoutException: The host did not accept the connection within timeout of 20000 ms”

Do you have any ideas what is missing?

Br,

Liisa

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Donald Brower | 8 Mar 2013 22:03

[fcrepo-dev] Error in Fedora 3.6 Documentation?

The online docs for Fedora 3.6 say the path for the API-M method
getDatastreamHistory is

/objects/{pid}/datastreams/{dsid}/versions ? [format]

But, from playing with a local copy of Fedora, it seems the path is really

/objects/{pid}/datastreams/{dsid}/history ? [format]

I think this is just a mistake in the documentation.

-Don

--
Donald Brower, Ph.D.
Digital Library Infrastructure Lead
Hesburgh Libraries, University of Notre Dame

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Tom Cramer | 8 Mar 2013 00:12

[fcrepo-dev] request to sync Fedora & OR developers challenges for OR13

Peter, Mark, Don, Eddie, Sarah, Jon, (cc: Fedora Developers)

On a recent Fedora call, I was nominated to try and bring the OR13 and Fedora 4 developer challenges together at PEI. By way of this email, I'm hoping to get the OR hosts, program chairs and dev challenge coordinators to be in communication with the Fedora Futures team. By copying the Fedora developers lists, I hope to generate some awareness of and enthusiasm for the combined effort.

This is an excerpt from a preconference / dev workshop proposal that we submitted on behalf of Fedora:

As part of the Fedora Futures (FF) initiative, the FF Tech Team is rewriting the repository for what will be Fedora Version 4. As part of the rewrite, the FF Team invites developers from the OR community to:

-       install, run and test the software in a single or multi-node environment

-       run or extend the performance test harness to provide new measurements and data visualizations

-       contribute code, tests or documentation to the core repository

-       enhance or develop a new module or service to complement the repository

-       expose new Fedora 4 functionality in a new or existing (e.g. Hydra or Islandora) application

A principal objective of the FF initiative is not only to give the project a clean code base, but also one that is a easy to work productively in, and a joy to enhance. The Fedora track of the OR13 developer’s challenge will give developers a chance to get into the project on the ground floor while participating in a fun and supportive team environment.

(Please Note: This is a proposal for a Fedora Futures Developers’ Challenge. Ideally it will be run as part of the OR13 Dev Challenge. We are submitting this as a distinct proposal to ensure this it doesn’t get lost in the shuffle.)

Eddie Shin has volunteered to be the point person for FF in order to try and weave this strand into the greater OR Dev Challenge structure. Could we please begin a thread or set up a call to see if we merge the two effort?

Thanks,

- Tom

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Stone Xiang | 8 Mar 2013 08:17

[fcrepo-dev] no subject

http://www.xn--hsg-schnbuch-bjb.de/xs/rsgbmuu

Stone Xiang

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