Stacy:

At Cornell University, we are doing something similar to what you are talking 
about.  We are providing streaming video content using an external source 
"kaltura".  So, what I have done is once a video is submitted to DSpace, I 
submit an XML file to Kaltura using the URL to the bitstream.  Kaltura uploads 
the video and creates a streaming version.  Once I have the ID for the 
streaming version, I create an HTML page that uses the formatting of my DSpace 
pages and place a Kaltura viewer in it with the proper IDs.   I then upload the 
streaming version HTML to my original DSpace item as a bitstream.
For an example check out: http://ecommons.library.cornell.edu/handle/1813/33229
You will see the original bitstreams and then if you click on the streaming 
video version, you will see how I am handling an external viewer.

In my development DSpace 3.2 XMLUI version (soon to be in production), I have 
gone ahead and embedded the viewer on the item page, but I don't think this can 
be done in the JSPUI.

George Kozak
Digital Library Specialist
Cornell University Library Information Technologies (CULIT)
218 Olin Library
Cornell University
Ithaca, NY 14853
607-255-8924

________________________________________
From: Pennington_Stacy <[email protected]>
Sent: Friday, March 21, 2014 5:25 PM
To: [email protected]
Subject: [Dspace-tech] Linking from DSpace Object to External URL

Last week, I updated our DSpace from 1.8.2 to 4.1 without many (any?) issues. 
Kudos to everyone on this list that worked on the DSpace 4.x releases, whether 
as a developer, contributor, tester, or whatever. Your efforts are appreciated!

I'm wondering how to do something that seems pretty simple and can't find any 
leads in the DSpace docs or wiki on how to do it. I would like to provide a 
hyperlink from a DSpace object's page (we are using JSPUI) to an external 
location to showcase that object's bitstream using technology not associated 
with DSpace.

For example, I've got high-resolution images saved as objects in DSpace, so 
that the lossless TIFF (huge) and lossy JPEG (much smaller) are available in 
DSpace, complete with lovely DC metadata. I've now got a Djatoka server running 
with OpenSeaDragon as a viewer, and many of these large images can be viewed on 
the external Djatoka server using a custom URL for that image. I want to link 
to that external URL from within the DSpace JSPUI object page in the simplest 
way possible, without modifying DSpace code. Is this possible?

I know that this may be bad form for a repository, but I'm not interested in 
modifying the JSPUI template pages to load the Javascript viewer on the page or 
anything like that. I'm willing to store the URL to the zoomable viewer in the 
object's metadata, which of course I can do now in DC but it doesn't create a 
hyperlink; the user needs to copy/paste the URL to get to the zoomable viewer. 
I just need a simple link from the object page, and if that link stops working 
in the future, that's OK. I can remove it at that time. The bitstreams are the 
most important thing, but the user would get the most use out of the simple, 
zoomable, external URL.

Does anyone have any advice for me? Again, I'm interested in the simplest, 
easiest way to do this link, one with the least number of changes to the DSpace 
source code.

Thanks in advance for any ideas!

--
Stacy Pennington
Information Technology Services
Rhodes College
901-843-3968



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