When you are indexing the file and adding the Document, you will need
to parse out your filename per your regular expression, and then
create the appropriate field:
Document doc = new Document()
String cat = getCategoryFromFileName(inputFileName)
doc.add(new Field("category", cat, ...)
//do the rest of your adds
Just locate where in the demo the Document add is taking place (I
forget the exact spot) and then add in the appropriate stuff from
above. Obviously, you need to implement the method I stubbed called
getCategoryFromFileName.
HTH,
Grant
On Oct 29, 2007, at 1:06 PM, KR wrote:
I've been using the Lucene demo from
http://lucene.apache.org/java/2_1_0/demo.html
I have a set of documents
with filenames that give a good indication of content.
A filename of 12 digits (I think this is [0-9]{12} as a regular
expression) with the extension html is a troubleshooting guide, the
number
being an error code. A filename with two or three letters, then a
minus
(which would be [a-z]{2,3}- I think), then a known string means the
document is about a particular subject; I have a list of the known
strings
matched to subjects.
What I would like to do, is have my indexer create a field named
"category", populated with either the string "troubleshooting" or
with the
known string extracted from the filename.
Examples:
For a file named 0000000000111.html the indexer adds the field
"category"
with the value "troubleshooting". For a file named xxx-cal-123.html
the
indexer adds the field "category" with the value "cal". For a file
named
xx-qv-(9).html the indexer adds the field "category" with the value
"qv".
Is there a way to do that?
Beef.
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http://lucene.grantingersoll.com
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