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Strigi

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Strigi
Developer(s)Jos van den Oever
Flavio Castelli
Stable release
0.7.1 [1] / 7 January 2010
Repository
Written inC++
Operating systemLinux
TypeSearch tool
LicenseLGPL
Websitesourceforge.net/projects/strigi/

Strigi is a desktop search daemon, which is operating system-independent and desktop-independent. Strigi was initiated by Jos van den Oever. Strigi's goals are to be fast, use a small amount of RAM, and use flexible backends and plug-ins.[3] A benchmark as of January 2007 showed that Strigi is faster and uses less memory than other search systems,[4] but it lacks many of their features[citation needed]. Like most desktop search systems, Strigi can extract information from files, such as the length of an audio clip, the contents of a document, or the resolution of a picture; plugins determine what filetypes it is capable of handling.[5] Strigi uses its own Jstream system which allows for deep indexing of files. Strigi is accessible via Konqueror, or by clicking on its icon, after adding it to KDE's Kicker or GNOME Panel. (In GNOME desktop, it is called the Deskbar applet.) The graphical user interface (GUI) is named Strigiclient.[5]

Features

  • SHA-1 hash for every file indexed to find duplicates
  • As of July, 2007 Strigi supports indexing the contents of plain text, PDF, MP3, archives, Debian and RPM packages, and OASIS OpenDocument text (odt), spreadsheet (ods) and presentation (odp) files
  • D-Bus and socket support for communication between the daemon and search program
  • Small memory footprint
  • Xesam query language support
  • Very portable, currently runs on Linux, Solaris, Mac OS X and Windows
  • Pluggable backend: Lucene and HyperEstraier, SQLite and Xapian backends are being worked on
  • iNotify and synchronization to filesystem are being attempted.[3]
  • Strigi's indexing can be stopped manually, and will suspend itself if running on a laptop's batteries, disk drive runs out of space,[6] and/or runs in the background until the CPU is not busy with tasks that the computer-user is waiting on the CPU for.[4]

Operating systems and desktops

KDE Plasma Workspaces require Strigi as core component of the new semantic desktop technologies. Strigi and NEPOMUK are working together to help create a semantic desktop search. NEPOMUK will allow the user to add metadata, which Strigi will be able to index for a more precise search. Developers are also considering adding Sonnet support to Strigi to allow users to search for documents written in a specific language[7].

GNOME has an optional applet to search for files using Strigi, named Deskbar.[8] Deskbar is included in the Gnome desktop of Ubuntu 8.10, for example.

See also

References