Many repositories do not expose *all* their content for harvesting. The
oai item ID in the RELS-EXT is the hook that causes PROAI to index an
item and serve it up. Your (2) below relates to OAI-PMH harvesting sets
so that people can harvest (say) just your physics content rather than
all of your exposed content. These sets are optional.
Without the RELS-EXT entries PROAI will not expose anything.
Richard
-----Original Message-----
From: Shrestha, Biva [mailto:shrest...@ornl.gov]
Sent: 15 June 2011 9:59 PM
To: Support and info exchange list for Fedora users.
Subject: Re: [fcrepo-user] question on OAI-PMH
Hello Richard,
First of all thank you so much for being patient. I am not clear yet as
to why we need to add entries to the RDF. In the documentation of
OAI-PMH
(https://wiki.duraspace.org/display/FCSVCS/OAI+Provider+Service+1.2.1)
it clearly says that it:
1) Supports any metadata format available through your Fedora
Repository via a Datastream or dissemination service
2) Supports sets that are expressed as RDF relationships in your
digital objects' RELS-EXT Datastreams as exposed via the Resource Index
Are these two same thing or linked. Because we are trying to achieve the
first one here not the second one. Again I really appreciate your
patience and I would really appreciate if you could explain as to why we
would need those entries in RELS-EXT when we are trying to achieve the
support number one and not two.
thank you so much
Biva
________________________________________
From: Richard Green [r.gr...@hull.ac.uk]
Sent: Wednesday, June 15, 2011 5:26 AM
To: Support and info exchange list for Fedora users.
Subject: Re: [fcrepo-user] question on OAI-PMH
Two things spring to mind. First (apologies for asking) you have put
the appropriate oai entries into the RELS-EXT of each object haven't you
(<oai:itemID>)? Second, I wonder if there is some case sensitivity -
you have both FGDC and fgdc: I wonder if they should all match?
Try also
hxxp://localhost:8080/fedora/oai?verb=ListMetadataFormats and see if it
returns fgdc.
R
-----Original Message-----
From: ivashrestha [mailto:shrest...@ornl.gov]
Sent: 14 June 2011 8:35 PM
To: fedora-commons-users@lists . sourceforge . net
Subject: Re: [fcrepo-user] question on OAI-PMH
Hi Richard,
We have a datastream with DSID "FGDC.xml" and content as follows:
<metadata>
[xml-content]
</metadata>
We want to expose this datastream using OAI-PMH support. And the changes
that we added to the proai.properties file are
driver . fedora . md.formats = test_format formatX formatY oai_dc fgdc
driver . fedora . md.format.fgdc.dissType = info:fedora/*/FGDC.xml
After these changes the datastream is still not being exposed because
when
we do a
hxxp://localhost:8080/fedora/oai?verb=ListRecords&metadataPrefix=metadat
a
we get
<OAI-PMH xsi:schemaLocation="hxxp://www.openarchives.org/OAI/2.0/
hxxp://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2011-06-1
4T11:12:25Z</responseDate><request
verb="ListRecords">hxxp://localhost:8080/fedora/oai</request><error
code="cannotDisseminateFormat">Repository does not provide that format
in
OAI-PMH responses.</error></OAI-PMH>
Is there something we are missing?
thank you so much
Biva
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