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<h2 class="blog-post-title" dir="auto"><a href="https://alanorth.github.io/cgspace-notes/cgspace-cgcorev2-migration/">CGSpace CG Core v2 Migration</a></h2>
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<time datetime="2021-02-21T13:27:35+02:00">Sun Feb 21, 2021</time>
in
<span class="fas fa-folder" aria-hidden="true"></span>&nbsp;<a href="/cgspace-notes/categories/notes/" rel="category tag">Notes</a>
<span class="fas fa-tag" aria-hidden="true"></span>&nbsp;<a href="/cgspace-notes/tags/migration/" rel="tag">Migration</a>
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<p>Changes to CGSpace metadata fields to align more with DC, QDC, and DCTERMS as well as CG Core v2. Implemented on 2021-02-21.</p>
<p>With reference to <a href="https://agriculturalsemantics.github.io/cg-core/cgcore.html">CG Core v2 draft standard</a> by Marie-Angélique as well as <a href="http://www.dublincore.org/specifications/dublin-core/dcmi-terms/">DCMI DCTERMS</a>.</p>
<ul>
<li><a href="#proposed-changes">Proposed Changes</a>
<ul>
<li><a href="#out-of-scope">Out of Scope</a></li>
</ul>
</li>
<li><a href="#fields-to-create">Fields to Create</a></li>
<li><a href="#fields-to-delete">Fields to Delete</a></li>
<li><a href="#implementation-progress">Implementation Progress</a></li>
</ul>
<h2 id="proposed-changes">Proposed Changes</h2>
<p>As of 2021-01-18 the scope of the changes includes the following fields:</p>
<ul>
<li>cg.creator.id→cg.creator.identifier
<ul>
<li>ORCID identifiers</li>
</ul>
</li>
<li>dc.format.extent→dcterms.extent</li>
<li>dc.date.issued→dcterms.issued</li>
<li>dc.description.abstract→dcterms.abstract</li>
<li>dc.description→dcterms.description</li>
<li>dc.description.sponsorship→cg.contributor.donor
<ul>
<li>values from CrossRef or Grid.ac if possible</li>
</ul>
</li>
<li>dc.description.version→cg.reviewStatus</li>
<li>cg.fulltextstatus→cg.howPublished
<ul>
<li>CGSpace uses values like &ldquo;Formally Published&rdquo; or &ldquo;Grey Literature&rdquo;</li>
</ul>
</li>
<li>dc.identifier.citation→dcterms.bibliographicCitation</li>
<li>cg.identifier.status→dcterms.accessRights
<ul>
<li>current values are &ldquo;Open Access&rdquo; and &ldquo;Limited Access&rdquo;</li>
<li>future values are possibly &ldquo;Open&rdquo; and &ldquo;Restricted&rdquo;?</li>
</ul>
</li>
<li>dc.language.iso→dcterms.language
<ul>
<li>current values are ISO 639-1 (aka Alpha 2)</li>
<li>future values are possibly ISO 639-3 (aka Alpha 3)?</li>
</ul>
</li>
<li>cg.link.reference→dcterms.relation</li>
<li>dc.publisher→dcterms.publisher</li>
<li>dc.relation.ispartofseries will be split into:
<ul>
<li>series name: dcterms.isPartOf</li>
<li>series number: cg.number</li>
</ul>
</li>
<li>dc.rights→dcterms.license
<ul>
<li>Using <a href="https://spdx.org/licenses/">SPDX license identifiers</a> if possible</li>
</ul>
</li>
<li>dc.source→cg.journal</li>
<li>dc.subject→dcterms.subject</li>
<li>dc.type→dcterms.type</li>
<li>dc.identifier.isbn→cg.isbn</li>
<li>dc.identifier.issn→cg.issn</li>
<li>cg.targetaudience→dcterms.audience</li>
</ul>
<h3 id="out-of-scope">Out of Scope</h3>
<p>The following fields are currently out of the scope of this migration because they are used internally by DSpace 5.x/6.x and would be difficult to change without significant modifications to the core of the code:</p>
<ul>
<li>dc.title (<code>IncludePageMeta.java</code> only considers DC when building pageMeta, which we rely on in XMLUI because of XSLT from DRI)</li>
<li>dc.title.alternative</li>
<li>dc.date.available</li>
<li>dc.date.accessioned</li>
<li>dc.identifier.uri (hard coded for Handle assignment upon item submission)</li>
<li>dc.description.provenance</li>
<li>dc.contributor.author (<code>IncludePageMeta.java</code> only considers DC when building pageMeta, which we rely on in XMLUI because of XSLT from DRI)</li>
</ul>
<h2 id="fields-to-create">Fields to Create</h2>
<p>Make sure the following fields exist:</p>
<ul>
<li><input checked="" disabled="" type="checkbox"> cg.creator.identifier (247)</li>
<li><input checked="" disabled="" type="checkbox"> cg.contributor.donor (248)</li>
<li><input checked="" disabled="" type="checkbox"> cg.reviewStatus (249)</li>
<li><input checked="" disabled="" type="checkbox"> cg.howPublished (250)</li>
<li><input checked="" disabled="" type="checkbox"> cg.journal (251)</li>
<li><input checked="" disabled="" type="checkbox"> cg.isbn (252)</li>
<li><input checked="" disabled="" type="checkbox"> cg.issn (253)</li>
<li><input checked="" disabled="" type="checkbox"> cg.volume (254)</li>
<li><input checked="" disabled="" type="checkbox"> cg.number (255)</li>
<li><input checked="" disabled="" type="checkbox"> cg.issue (256)</li>
</ul>
<h2 id="fields-to-delete">Fields to delete</h2>
<p>Fields to delete after migration:</p>
<ul>
<li><input checked="" disabled="" type="checkbox"> cg.creator.id</li>
<li><input checked="" disabled="" type="checkbox"> cg.fulltextstatus</li>
<li><input checked="" disabled="" type="checkbox"> cg.identifier.status</li>
<li><input checked="" disabled="" type="checkbox"> cg.link.reference</li>
<li><input checked="" disabled="" type="checkbox"> cg.targetaudience</li>
</ul>
<h2 id="implementation-progress">Implementation Progress</h2>
<p>Tally of the status of the implementation of the new fields in the CGSpace <code>6_x-cgcorev2</code> branch.</p>
<table>
<thead>
<tr>
<th>Field Name</th>
<th style="text-align:center">migrate-fields.sh</th>
<th style="text-align:center">Input Forms</th>
<th style="text-align:center">XMLUI Themes¹</th>
<th style="text-align:center">dspace.cfg</th>
<th style="text-align:center">Discovery</th>
<th style="text-align:center">Atmire Modules</th>
<th style="text-align:center">Crosswalks</th>
</tr>
</thead>
<tbody>
<tr>
<td>cg.creator.identifier</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.extent</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.issued</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">?</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.abstract</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.description</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>cg.contributor.donor</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>cg.reviewStatus</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>cg.howPublished</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.bibliographicCitation</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.accessRights</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.language</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.relation</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.publisher</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.isPartOf</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.license</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>cg.journal</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.subject</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.type</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>cg.isbn</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>cg.issn</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
<tr>
<td>dcterms.audience</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">✓</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">-</td>
<td style="text-align:center">✓</td>
<td style="text-align:center"></td>
</tr>
</tbody>
</table>
<p>There are a few things that I need to check once I get a deployment of this code up and running:</p>
<ul>
<li>Assess the XSL changes to see if things like <code>not(@qualifier)]</code> still make sense after we move fields from DC to DCTERMS, as some fields will no longer have qualifiers</li>
<li>Do I need to edit crosswalks that we are not using, like <a href="https://wiki.lyrasis.org/display/DSDOC5x/DSpace+AIP+Format#DSpaceAIPFormat-MODSSchema">MODS</a>?</li>
<li>There is potentially a lot of work in the OAI metadata formats like DIM, METS, and QDC (see <code>dspace/config/crosswalks/oai/*.xsl</code>)</li>
</ul>
<hr>
<p>¹ Not committed yet because I don&rsquo;t want to have to make minor adjustments in multiple commits. Re-apply the gauntlet of fixes with the sed script:</p>
<pre tabindex="0"><code>$ find dspace/modules/xmlui-mirage2/src/main/webapp/themes -iname &#34;*.xsl&#34; -exec sed -i -f ./cgcore-xsl-replacements.sed {} \;
</code></pre>
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<li><a href="/cgspace-notes/2022-04/">April, 2022</a></li>
<li><a href="/cgspace-notes/2022-03/">March, 2022</a></li>
<li><a href="/cgspace-notes/2022-02/">February, 2022</a></li>
<li><a href="/cgspace-notes/2022-01/">January, 2022</a></li>
<li><a href="/cgspace-notes/2021-12/">December, 2021</a></li>
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