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Islandora PREMIS

Introduction

A Drupal 8/9 module that serializes PREMIS metadata generated by various Islandora modules and microsrevices, including Islandora, JSON-LD, and Riprap. This module produces PREMIS v3 in Turtle RDF for a node by appending /premis to the end of the node's URL, e.g., https://localhost/node/250/premis.

Feedback on what PREMIS entities and events you'd like to see in this output is welcome.

Output will look like this:

@prefix premisobject: <http://www.loc.gov/premis/rdf/v3/Object> .
@prefix premis: <http://id.loc.gov/vocabulary/preservation/eventOutcome> .
@prefix ebucore: <https://www.ebu.ch/metadata/ontologies/ebucore#> .
@prefix cryphashfunc: <http://id.loc.gov/vocabulary/preservation/cryptographicHashFunctions/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix schema: <http://schema.org/> .

<http://127.0.0.1:8080/fcrepo/rest/2019-12/Evaluation and Effectiveness of Digital Preservation.pdf>
  a premisobject:File ;
  premis:size "534450" ;
  premis:compositionLevel 0 ;
  ebucore:hasMimeType "application/pdf" ;
  premis:fixity "7b44c786-6d7e-4764-b278-d1ac1d503d99", "324bd1b9-0a38-400d-bd07-2026801e1040", "458f3e38-34c8-412d-879f-0ec3c5a1c37c", "eb7951ac-3baf-4661-a181-76ef0995744b", "d3e39c84-ae5d-44bb-b8ce-fbe9289b1f31" .

<7b44c786-6d7e-4764-b278-d1ac1d503d99>
  a <http://id.loc.gov/vocabulary/preservation/eventType/fix>, cryphashfunc:sha256 ;
  rdf:value "6933a46f55f27a62689406ea33c650b1c16d6268ee81f6c6a2a89c63aeec9d27" ;
  dc:created "2019-12-21T15:41:00-0600" ;
  premis:outcome "success" .

<http://localhost:8000/node/1>
  a <http://pcdm.org/models#Object>, <https://schema.org/DigitalDocument>, <http://www.loc.gov/premis/rdf/v3/IntellectualEntity> ;
  dc:extent "1 item"^^xsd:string ;
  dc:title "A document!"@en ;
  schema:author <http://localhost:8000/user/1> ;
  schema:dateCreated "2019-12-09T14:39:07+00:00"^^xsd:dateTime ;
  schema:dateModified "2019-12-09T14:41:25+00:00"^^xsd:dateTime ;
  schema:sameAs <http://localhost:8000/node/1> .

<http://localhost:8000/user/1> a schema:Person .
<324bd1b9-0a38-400d-bd07-2026801e1040>
  a <http://id.loc.gov/vocabulary/preservation/eventType/fix>, cryphashfunc:sha256 ;
  rdf:value "6933a46f55f27a62689406ea33c650b1c16d6268ee81f6c6a2a89c63aeec9d27" ;
  dc:created "2019-12-22T11:44:31-0600" ;
  premis:outcome "success" .

<458f3e38-34c8-412d-879f-0ec3c5a1c37c>
  a <http://id.loc.gov/vocabulary/preservation/eventType/fix>, cryphashfunc:sha256 ;
  rdf:value "6933a46f55f27a62689406ea33c650b1c16d6268ee81f6c6a2a89c63aeec9d27" ;
  dc:created "2019-12-22T16:16:37-0600" ;
  premis:outcome "success" .

<eb7951ac-3baf-4661-a181-76ef0995744b>
  a <http://id.loc.gov/vocabulary/preservation/eventType/fix>, cryphashfunc:sha256 ;
  rdf:value "6933a46f55f27a62689406ea33c650b1c16d6268ee81f6c6a2a89c63aeec9d27" ;
  dc:created "2019-12-23T11:28:13-0600" ;
  premis:outcome "success" .

<d3e39c84-ae5d-44bb-b8ce-fbe9289b1f31>
  a <http://id.loc.gov/vocabulary/preservation/eventType/fix>, cryphashfunc:sha256 ;
  rdf:value "6933a46f55f27a62689406ea33c650b1c16d6268ee81f6c6a2a89c63aeec9d27" ;
  dc:created "2019-12-23T16:19:05-0600" ;
  premis:outcome "success" .

Note that the fixity events are added by the Islandora Riprap module, which implements Islandora PREMIS's hook_islandora_premis_turtle_alter() hook to add data to the PREMIS Turtle.

Requirements

If Islandora Riprap is installed, fixity check events will be added to the PREMIS output.

Installation

  1. Clone this repo into your Islandora's drupal/web/modules/contrib directory.
  2. Enable the module either under the "Admin > Extend" menu or by running drush en -y islandora_premis.

Configuration

not done yet.

Current maintainer

License

GPLv2

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Drupal 8 version of Islandora PREMIS.

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