Flavio Castelli

Last day just after I hit the “submit” button a doubt came into my mind: “did I say everything ?”
Well, the answer is “No!”
In fact I forgot to tell you one of the most important things: how to have some fun with Strigi and Xesam!

Actually the only way to perform XesamQueryLanguage queries with Strigi is through the strigicmd program.

Strigicmd is a command-line tool shipped with Strigi. It can perform different actions like:

• create Strigi indexes
• remove items from index
• list all files contained into an index
• retrieve informations associated to an indexed file
• update the contents of your index
• query the index
• perform a query using XesamQueryLanguage

So, if you want to try the new Xesam support you’ve just to use strigicmd with the xesamquery option.
The command syntax is:
strigicmd xesamquery -t backend -d indexdir [-u xesam_user_language_file] [-q xesam_query_language_file]
As you can expect you’ve to save your Xesam query to file and point strigicmd to it.

This is a really small step-by-step guide:

1. Create a new Strigi index (in this case I’ll index all irc logs):
   strigicmd create -t clucene -d temp/ logs/
2. Create a simple file containing your Xesam query. You can find some example query on Xesam site or inside strigi tarball (complete path: strigi/src/streamanalyzer/xesam/testqueries/).
   This is a stupid and easy query:

   <request>
   
   <query>
   
   <or>
   
   <equals>
   
   <string casesensitive="true">Oever</string>
   
   </equals>
   
   <contains>
   
   <string casesensitive="false">jos</string>
   
   </contains>
   
   </or>
   
   </query>
   
   </request>

3. Perform the search, just type:

   strigicmd xesamquery -t clucene -d temp/ -q ~/irc_oever.xml

4. Enjoy the search results

Remember that XesamUserLanguage query language isn’t yet supported.

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This entry was posted on Thursday, August 9th, 2007 at 1:10 pm and is filed under KDE, Strigi. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.