I'm getting this error when I try to run a command line nutch-API based search
app:
IllegalArgumentException: plugin.folders is not defined
Any suggestions?
This is the command:
java -cp <many jars>:$NUTCH_HOME/conf:. SearchApp a_search_string
I looked at this post:
http://www.mail-archive.com/[EMAIL PROTECTED]/msg08241.html
and saw advice to put the conf directory in the CLASSPATH, which I did as you
see above, and to also modify nutch-site.xml to contain a line for
plugin.folders, which I also did:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<!-- I'm setting this to an absolute path for the SearchApp sample -->
<property>
<name>plugin.folders</name>
<value>/usr/local/nutch-2007-06-27_06-52-44/plugins</value>
<description>Directories where nutch plugins are located. Each
element may be a relative or absolute path. If absolute, it is used
as is. If relative, it is searched for on the classpath.</description>
</property>
--
Here's SearchApp.java:
import org.apache.hadoop.conf.Configuration;
import java.io.IOException;
import org.apache.nutch.searcher.Hit;
import org.apache.nutch.searcher.HitDetails;
import org.apache.nutch.searcher.Hits;
import org.apache.nutch.searcher.NutchBean;
import org.apache.nutch.searcher.Query;
public class SearchApp {
private static final int NUM_HITS = 10;
public static void main(String[] args)
throws IOException {
if (args.length == 0) {
String usage = "Usage: SearchApp query";
System.err.println(usage);
System.exit(-1);
}
Configuration conf = new Configuration();
NutchBean bean = new NutchBean(conf);
Query query = Query.parse(args[0], conf);
query.addRequiredTerm(args[0]);
Hits hits = bean.search(query, NUM_HITS);
for (int i = 0; i < hits.getLength(); i++) {
Hit hit = hits.getHit(i);
HitDetails details = bean.getDetails(hit);
String title = details.getValue("title");
String url = details.getValue("url");
String summary =
bean.getSummary(details, query).toString();
System.out.print(title);
System.out.print(" (");
System.out.print(url);
System.out.println(")");
System.out.println("\t" + summary);
}
}
}
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