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Re: [EP-tech] Atom.xsl Patch Submission

Hi Sebastian,

Thanks for submitting this patch.

 

The ‘yomiko’ part is a good catch.

When I export something as Atom, I get these category elements:

<category term="article" label="Article" scheme="http://eprints.whiterose.ac.uk/data/eprint/type"/>

<category term="archive" label="Live Archive" scheme="http://eprints.org/ep2/data/2.0/eprint/eprint_status"/>

These are generated here: https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Export/Atom.pm#L258-L272

 

The ‘eprint_status’ one uses the eprints.org namespace – which I think is what should possibly be used instead of ‘yomiko’ [EPrints Services: how does 3.4 (without a default ‘flavour’) handle this?].

The ‘type’ one uses the repository namespace – I think because these can be configured at the repository level.

 

I have created this pull request: https://github.com/eprints/eprints/pull/419 for this.

 

For the ‘subjects’ part, in EPrints, the subjects field is normally a controlled-value field, based on the ‘subjects’ dataset.

If values added to the subject field don’t exist in the subjects dataset, EPrints doesn’t break – but they will render like this:

?? value ??

– which isn’t normally what is wanted.

 

By default (in the perl_lib Atom.xsl file), I think it’s safer to *not* map the dcterms:subject into the subjects field (I haven’t done this in the pull request above).

 

To achieve the improved import of data for Artivity, I would either

(i) make a new XSL import mapping (see warning below!):

~/archives/ARCHIVEID/cfg/plugins/EPrints/Plugin/Import/XSLT/ArtivityAtom.xsl (change the attribute to ept:name=”Artivity Atom XML”)

Or (ii) override the default Atom plugin:

~/archives/ARCHIVEID/cfg/plugins/EPrints/Plugin/Import/XSLT/Atom.xsl

 

!! WARNING !!

I’m not sure how the code here: https://github.com/eprints/eprints/blob/3.3/perl_lib/EPrints/Plugin/Import/AtomMultipart.pm#L96-L113  will behave when there are multiple plugins defined that can handle application/atom+xml imports. If you have two plugins: Atom.xsl and ArtivityAtom.xsl, things might not work. I haven’t tested this (please let us know if you go down this route and it works!).

 

Also, I’ve never over-ridden an XSL plugin. To override perl EPrints plugins this is the way to do it:

https://wiki.eprints.org/w/Instructions_for_local_plugins

I’m not sure if you’d need to, or how you would define the ‘plugin_alias_map’ aspect…

 

 

Cheers,

John

 

From: eprints-tech-bounces@ecs.soton.ac.uk [mailto:eprints-tech-bounces@ecs.soton.ac.uk] On Behalf Of Sebastian Faubel
Sent: 31 August 2016 11:43
To: eprints-tech@ecs.soton.ac.uk
Subject: [EP-tech] Atom.xsl Patch Submission

 

Hello everyone,

 

I have found the reason why the category id and subjects are not recognized when depositing files in E-Prints using the Atom Publishing Protocol. The XSLT stylesheet 'Atom.xsl' [0]  in the Import directory does not handle those elements when converting Atom to EPrints XML.

 

Please find attached a version of the file which handles the dcterms:type and dcterms:subject terms and translates them into E-Prints XML. The dcterms vocabulry seems to be widely used in SWORD protocol implementations (i.e. [1]).

 

Additionally, I corrected a line in the stylesheet which transforms a submitted eprints status. The line checked for the status being equal to 'MailScanner has detected a possible fraud attempt from "yomiko.ecs.soton.ac.uk80" claiming to be http://yomiko.ecs.soton.ac.uk:8080/data/eprint/status/'. It seems to me that this is a concrete EPrints instance, so the line would not work for any other EPrints instance. I changed the line to: 'contains(@scheme,'/eprint/status')'. This should work for all EPrints instances, including my test server.

 

Please let me know if you will be including my patch into the repository.

 

Thank you,

 

Sebastian

 

[0] perl_lib/EPrints/Plugin/Import/XSLT/Atom.xsl

[1] http://guides.dataverse.org/en/latest/api/sword.html

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