On Tue, Sep 30, 2008 at 4:25 PM, student_t <[EMAIL PROTECTED]> wrote:
>
> Hi! Nutch Experts,
>
> Please help me with the following two questions.
>
> 1. It seems to me the Lucene QueryFilter functions differently from Nutch
> QueryFilter. Lucene QueryFilter filters out hits and Nutch QueryFilter
> modifies the underlying Query. Is my understanding correct?
>
Yes.
> 2. How do I configure so Nutch knows to send the query to the underlying
> QueryFilter before issuing its search? I have all the plugins in the right
> directories and seen in my log file that these plugins are loaded. But when
> I issue my search, I didn't see log entries (INFO) in the QueryFilter code
> spitted out. I must be missing a configuration entry. I think this entry
> must be put in nutch-default.xml. But what are the entries and can I load
> the configuration file any time I want? It seems to me when I construct a
> Nutch Query it attempts to load the configuration dynamically.
>
Have you modified your plugin.xml?
For example, query-basic's looks like this:
.....
<implementation id="BasicQueryFilter"
class="org.apache.nutch.searcher.basic.BasicQueryFilter">
<parameter name="fields" value="DEFAULT"/>
</implementation>
....
And query-url like this:
.....
<parameter name="fields" value="url"/>
.....
A query filter only gets called if Nutch's query processing system
determines that it has fields to parse.
So, query-basic is called on everything without a specific field
(thus, DEFAULT) and query-url is called
if query has "url:......"
> Thanks very much in advance for any insights!
>
> -student_t
>
>
>
> --
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> Sent from the Nutch - User mailing list archive at Nabble.com.
>
>
--
Doğacan Güney
