Institutional Repository International Image Interoperability Framework Service
A Spring backend for the Institutional Repository International Image Interoperability Framework (IRIIIF) Service developed and maintained by Texas A&M University Libraries.
This service provides IIIF manifest generation from DSpace RDF and/or Fedora PCDM.
Table of contents
- [Requirements:](#requirements)
- [External Requirements:](#external-requirements)
- [IIIF Server](#iiif-server)
- [DSpace](#dspace)
- [Fedora](#fedora)
- [Developer Documentation](#developer-documentation)
- [Additional Resources](#additional-resources)
Requirements:
- Redis
- manifest cache
- resource URL cache
External Requirements:
- IIIF Server
- must support API v2
- script delegate to resolve identifier
- tested with Cantaloupe
- DSpace
- RDF webapp deployed and indexed
- Triplestore
- tested with Fuseki
- Fedora
- Image resolution by identifier
http://[iiif image server]/iiif/2/[UUID redis key]/full/full/0/default.jpg- UUID resource location resolution via resources interface
- Presentation API v2
- Image API v2
Example Cantaloupe custom delegate
```
require 'base64'
class CustomDelegate
##
# Returns one of the following:
#
# 1. String URI
# 2. Hash with the following keys:
# * `uri` [String] (required)
# * `username` [String] For HTTP Basic authentication (optional).
# * `secret` [String] For HTTP Basic authentication (optional).
# * `headers` [Hash] Hash of request headers (optional).
# 3. nil if not found.
#
# @param options [Hash] Empty hash.
# @return See above.
#
def httpsource_resource_info(options = {})
id = context['identifier']
puts id
if ( id =~ /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/ )
uri = '<%= @iiif_service_url %>resources/' + id + '/redirect'
elsif
irid = Base64.decode64(id)
puts irid
if irid.include? ":"
parts = irid.split(':')
ir = parts[0]
path = parts[1]
if ir == 'fedora'
uri = '<%= @fedora_url %>' + path
elsif ir == 'dspace'
uri = '<%= @dspace_url %>' + path
else
uri = irid
end
else
uri = id
end
end
puts uri
return uri
end
end
```
Fedora PCDM RDF Example
The following series of Fedora requests for PCDM RDF
https://api-pre.library.tamu.edu/fcrepo/rest/bb/97/f2/3e/bb97f23e-803a-4bd6-8406-06802623554c/20/d5/bc/11/20d5bc11-1f51-487c-8ef6-00a5ece451aa/berger_cloonan_batch_5_objects/457
```
.
.
.
"Fancy Paper Company"^^ .
"fedoraAdmin"^^ .
.
"reformatted digital"^^ .
"In copyright; For more information see: http://rightsstatements.org/vocab/InC/1.0/"^^ .
"Surface application; Sprinkled; M5.D2.F5; Machine made; Section(s) from the Decorated and Decorative Paper Terms Thesaurus: VIII.I.1; Not signed; Not stamped; Not stickered; Not embossed; Paper darkened; somewhat brittle and fragile; slightly torn"^^ .
"Berger-Cloonan #466"^^ .
"1 sheet of red, gray, black and light brown sprinkled paper; 21.00 x 22.50 in."^^ .
"Decorative papers"^^ .
"sprinkling"^^ .
"fedoraAdmin"^^ .
"2022-01-27T18:18:54.551Z"^^ .
"2022-01-27T18:18:54.551Z"^^ .
"Paper"^^ .
"466"^^ .
"M5.D2.F5.A"^^ .
"StillImage"^^ .
"art reproduction"^^ .
"decorated papers"^^ .
"Multi-colored sprinkled papers"^^ .
.
.
.
"false"^^ .
.
.
.
.
```
https://api-pre.library.tamu.edu/fcrepo/rest/bb/97/f2/3e/bb97f23e-803a-4bd6-8406-06802623554c/20/d5/bc/11/20d5bc11-1f51-487c-8ef6-00a5ece451aa/berger_cloonan_batch_5_objects/457/orderProxies/page_0_proxy/fcr:metadata
```
.
.
.
"fedoraAdmin"^^ .
"fedoraAdmin"^^ .
"2022-01-27T18:18:54.551Z"^^ .
"2022-01-27T18:18:54.551Z"^^ .
.
.
.
.
"false"^^ .
.
.
```
https://api-pre.library.tamu.edu/fcrepo/rest/bb/97/f2/3e/bb97f23e-803a-4bd6-8406-06802623554c/20/d5/bc/11/20d5bc11-1f51-487c-8ef6-00a5ece451aa/berger_cloonan_batch_5_objects/457/pages/page_0/fcr:metadata
```
.
.
.
"fedoraAdmin"^^ .
"fedoraAdmin"^^ .
"2022-01-27T18:18:54.551Z"^^ .
"2022-01-27T18:18:54.551Z"^^ .
.
.
"false"^^ .
.
.
.
```
https://api-pre.library.tamu.edu/fcrepo/rest/bb/97/f2/3e/bb97f23e-803a-4bd6-8406-06802623554c/20/d5/bc/11/20d5bc11-1f51-487c-8ef6-00a5ece451aa/berger_cloonan_batch_5_objects/457/pages/page_0/files/fcr:metadata
```
.
.
.
.
"fedoraAdmin"^^ .
"fedoraAdmin"^^ .
"2022-01-27T18:18:54.551Z"^^ .
"2022-01-27T18:18:54.551Z"^^ .
.
.
.
.
"false"^^ .
.
.
```
https://api-pre.library.tamu.edu/fcrepo/rest/bb/97/f2/3e/bb97f23e-803a-4bd6-8406-06802623554c/20/d5/bc/11/20d5bc11-1f51-487c-8ef6-00a5ece451aa/berger_cloonan_batch_5_objects/457/pages/page_0/files/00466.jpg/fcr:metadata
```
.
.
.
"00466.jpg"^^ .
"fedoraAdmin"^^ .
"22601344"^^ .
"image/jpeg"^^ .
"fedoraAdmin"^^ .
"2022-01-27T18:18:54.551Z"^^ .
.
"2022-01-27T18:18:54.551Z"^^