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Create a few sample objects with either a PDF or a text file, or both attached as datastreams (these commands assume you have two files named test.pdf and test.txt in your current working directory, please substitute working filenames as needed):
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curl -X POST http://localhost:8080/rest/objects/101?mixin=fedora:object
curl -X POST -H "Content-type: application/pdf" --data-binary @test.pdf \
http://localhost:8080/rest/objects/101/master/fcr:content
curl -X POST http://localhost:8080/rest/objects/102?mixin=fedora:object
curl -X POST -H "Content-type: text/plain" --data-binary @test.txt \
http://localhost:8080/rest/objects/102/master/fcr:content
curl -X POST http://localhost:8080/rest/objects/103?mixin=fedora:object
curl -X POST -H "Content-type: application/pdf" --data-binary @test.pdf \
http://localhost:8080/rest/objects/103/master/fcr:content
curl -X POST -H "Content-type: text/plain" --data-binary @test.txt \
http://localhost:8080/rest/objects/103/text/fcr:content |
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prefix fcrepo: <http://fedora.info/definitions/v4/repository#>
select ?object where { ?ds fcrepo:mixinTypes "fedora:datastream" .
?ds fcrepo:hasParent ?object . filter(str(?ds)=concat(str(?object)+,'/text')) } |
Find objects with a PDF datastream:
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prefix rels: <http://fedora.info/definitions/v4/rels-ext#>
select ?obj where {
{ ?obj rels:isMemberOfCollection <http://localhost:8080/rest/objects/col1> }
UNION
{ ?obj rels:isMemberOfCollection ?c .
<http://localhost:8080/rest/objects/col1> rels:hasPart ?c }
UNION
{ ?obj rels:isMemberOfCollection ?c .
<http://localhost:8080/rest/objects/col1> rels:hasPart ?c1 . ?c1 rels:hasPart ?c }
} |