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Fedora + Atom

Edwin Shin Fedora Commons http://www.fedora-commons.org/. Fedora + Atom. Acknowledgements. University of London MediaShelf. Publishing Protocol RFC5023 HTTP-based, RESTful publishing protocol e.g. GData. Serialization vs. Protocol. Syndication Format RFC4287 XML-based document format

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Fedora + Atom

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  1. Edwin Shin Fedora Commons http://www.fedora-commons.org/ Fedora + Atom

  2. Acknowledgements • University of London • MediaShelf

  3. Publishing Protocol RFC5023 HTTP-based, RESTful publishing protocol e.g. GData Serialization vs. Protocol • Syndication Format • RFC4287 • XML-based document format • e.g. BBC headlines

  4. Why Atom? • Simple, but flexible & extensible • Widespread adoption • From news & blogs to OAI-ORE • Tool support • Libraries for Java, Ruby, .NET, etc. • Feed readers • == lightweight recipe for enabling interoperability

  5. Fedora Atom Serialization • Alternative serialization to FOXML & METS • Atom ORE serialization • ZARCHIVE Context • A ZIP archive of a Fedora object, with an Atom manifest • Messaging Format

  6. <feed> <id>info:fedora/demo:SmileyBeerGlass</id> <entry> <id>info:fedora/demo:SmileyBeerGlass/FULL_SIZE</id> <title type="text">FULL_SIZE</title> <updated>2008-04-03T10:47:21.162Z</updated> <link href="info:fedora/demo:SmileyBeerGlass/FULL_SIZE/2008-04-03T10:47:21.162Z" rel="alternate"/> <category term="E" scheme="info:fedora/fedora-system:def/model#controlGroup"/> </entry> <entry xmlns:thr="http://purl.org/syndication/thread/1.0"> <id>info:fedora/demo:SmileyBeerGlass/FULL_SIZE/2008-04-03T10:47:21.162Z</id> <title type="text">FullSize.jpg.0</title> <updated>2008-04-03T10:47:21.162Z</updated> <thr:in-reply-to ref="info:fedora/demo:SmileyBeerGlass/FULL_SIZE"/> <summary type="text">FullSize.jpg.0</summary> <content type="image/jpeg" src="http://.../SmileyBeerGlass-FullSize.jpg"/> </entry> </feed> Atom

  7. <feed> <id>info:fedora/demo:SmileyBeerGlass</id> <link href="http://localhost:8080/fedora/get/demo:SmileyBeerGlass" rel="self" type="application/atom+xml"/> <title type="text">Resource Map http://localhost:8080/fedora/get/demo:SmileyBeerGlass</title> <author><name>Fedora Repository Service</name></author> <link href="http://localhost:8080/fedora/get/demo:SmileyBeerGlass#aggregation" rel="describes"/> <category term="http://www.openarchives.org/ore/terms/ResourceMap" scheme="http://www.openarchives.org/ore/terms/" label="ResourceMap"/> <fedora-model:hasContentModel>info:fedora/demo:CmodelForBMech_DualResImageImpl</fedora-model:hasContentModel> <dc:title>Smiley Beer Glass</dc:title> <rel:isMemberOf>info:fedora/demo:SmileyStuff</rel:isMemberOf> <entry> <id>info:fedora/demo:SmileyBeerGlass/FULL_SIZE</id> <updated>2008-04-03T10:39:23.473Z</updated> <title type="text">Aggregated Resource http://localhost:8080/fedora/get/demo:SmileyBeerGlass/FULL_SIZE</title> <link href="http://localhost:8080/fedora/get/demo:SmileyBeerGlass/FULL_SIZE" rel="alternate"/> <fedora-model:versionable>true</fedora-model:versionable> </entry> <entry> <id>info:fedora/demo:SmileyBeerGlass/MEDIUM_SIZE</id> <updated>2008-04-03T10:39:23.473Z</updated> <title type="text">Aggregated Resource http://localhost:8080/fedora/get/demo:SmileyBeerGlass/MEDIUM_SIZE</title> <link href="http://localhost:8080/fedora/get/demo:SmileyBeerGlass/MEDIUM_SIZE" rel="alternate"/> </entry> </feed> OREAtom

  8. <feed> <entry> <id>info:fedora/demo:SmileyBeerGlass/TEST/2008-04-03T11:19:40.440Z</id> <title type="text">TEST.0</title> <updated>2008-04-03T11:19:40.440Z</updated> <thr:in-reply-to ref="info:fedora/demo:SmileyBeerGlass/TEST"/> <category term="Managed Image" scheme="info:fedora/fedora-system:def/model#label"/> <summary type="text">TEST.0</summary> <content type="image/jpeg" src="TEST.0.jpg"/> </entry> </feed> Zip Archive Context

  9. <entry> <id>urn:uuid:8bcefc04-8391-4bf9-b0e7-d4822b829deb</id> <updated>2008-04-02T17:32:51.122Z</updated> <author> <name>fedoraAdmin</name> <uri>http://localhost:8080/fedora</uri> </author> <title type="text">purgeObject</title> <category scheme="http://www.fedora.info/definitions/1/0/types/pid" term="demo:foo" label="xsd:string"/> <summary>demo:foo</summary> <content type="text">2008-04-01T01:02:03.001Z</content> </entry> API-M Messaging Format

  10. Deserialization • Atom as an ingest format • Fedora objects • ORE Resource Maps • Any Atom feed • Remote invocation

  11. Currently available in Subversion: https://fedora-commons.svn.sourceforge.net/svnroot/fedora-commons/fedora/branches/dev-146791

  12. Future exploration • Modeling atomistic objects • Atom Publishing Protocol • Implement over the REST-API • SWORD

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