Tracker Feeds representation

In the set of Tracker-Nepomuk ontologies, MFO (maemo feeds ontology) can be used to represent feeds.

Mapping

As a reminder, when you are looking for the right property in the ontology:

  • Check if the specific class has a property for it
  • If not, check the superclass, and its superclasses and so on
  • If there is no property in the ontology for that information, ask to the tracker developers. Or it is missing in the ontology, or that information shouldn't be in tracker at all.

It seems that some field translations into ontology properties can be confusing, so here is a table defining a mapping. Note that FeedMessage and FeedChannel should also be a nfo:RemoteDataObject instance.

For feeds

Property

Ontology property

Comments

title

nie:title

updatedTime

mfo:updatedTime

is used to store a local timestamp of feed channel

contentLastModified

nie:contentLastModified

remote time is stored using this

Feed Url

nie:url

For feeds settings

Property

Ontology property

updateInterval

mfo:updateInterval

downloadPath

mfo:downloadPath

subscription Time

nie:contentCreated (in the feed!)

For messages

Property

Ontology property

Comments

title

nie:title

content

nie:plainTextContent

isRead

nmo:isRead

Inherited from nmo:Message

published time

nie:contentCreated

downloaded time

mfo:downloadedTime

nmo:receivedDate inherited from nmo:Message can (should) be used too (or instead?)

message url

nie:url

The original post url

Parent Feed

nmo:CommunicationChannel

Projects/Tracker/Discussion/FeedsMapping (last edited 2013-11-25 12:54:24 by WilliamJonMcCann)