[Xtf-user] Changing the $id value of a file

[Giulia H. <gh...@li...>]

An interesting, for me, scenario which I'm trying to solve.

Scenario:
I have two sets of files: mets & pdf which are related in pairs. I'll need
to create indexes of both, but pdf will just have a full text access for
searches. However, result coming from a found term in a pdf needs to link
to the related mets file rather than the pdf itself.

My approach(s)
I thought of two possible solutions, the first, though, is what I think
might the simpler.

1) in the preFilter.xml for the pdf file, I change what is indexed as the
id of the file replacing it with the related mets fileName which I
calculate by using a call, from within the xsl, to an external java class
which analyze the files in the mets directory. I like this approach
because it leaves XTF with the task of indexing and making all of the
work with minimal intervention on my side.
My question: how do I change the $id of the file?

2) in the preFilter.xml for the mets file, I make a call to an external
java class which finds the right pdf and returns its content which I would
put in a indexing snippet like this:
 <myPdf xtf:meta="true">
       <xsl:value-of select="$resultOfJavaCall"/>
    </myPdf>
Where I would have to convert somehow the pdf into text before hand. What
concerns me about this approach is the huge entries that I might get.

Do you have suggestion on the easiest, cleanest way to solve this problem?

Thanks,

Giulia
----------------------------
Giulia Hill
  Programmer/Analyst
  Library Systems Office
  University of California at Berkeley
  386 Doe Annex
  Berkeley, CA 94720