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Development/Tutorials/Metadata/Nepomuk/FileWatchService
Nepomuk Ontology Loader Service
| Tutorial Series | Nepomuk |
| Prerequisites | Ontology Loader Service |
| What's Next | Strigi Service |
| Further Reading | Nepomuk Services, Nepomuk Server |
[edit] Nepomuk File Watch Service
The File Watch service monitors the file system for changes. If files are deleted, the corresponding metadata is removed from the Nepomuk store. If files are moved, the URIs (file resources always have their file URL as RDF resource URI) and the file path are updated.
However: due to the restrictions of all file watching systems available (systems such as inotify are restricted to 8000 something watches, fam does not support file moving monitoring, etc.) the service mostly relies on KDirNotify. Thus, all operations performed by KDE applications through KIO are monitored while all other operations (such as console commands) are missed.
This is a big problem and needs work, maybe even on the kernel/libc level. Help wanted!
