Ok, I've got it all figured out now. This google search:
"nutch org.apache.nutch.searcher.NutchBean" "Total hits: 0"
got me to this forum page:
http://www.mail-archive.com/[EMAIL PROTECTED]/msg07522.html
It said: "Check to see if your nutch-site.xml file has the correct path to your
crawl directory inside the 'searcher.dir" property." So I added that and then
I got total hits > 0.
Just summarize: I had tried to upgrade SearchApp from
http://today.java.net/pub/a/today/2006/02/16/introduction-to-nutch-2.html
to nutch 0.9 and I finally figured it all out as detailed in this thread.
One important observation I make after going through lots of code: SearchApp
isn't very different from main() in NutchBean.java! Here:
/** For debugging. */
public static void main(String[] args) throws Exception {
String usage = "NutchBean query";
if (args.length == 0) {
System.err.println(usage);
System.exit(-1);
}
Configuration conf = NutchConfiguration.create();
NutchBean bean = new NutchBean(conf);
Query query = Query.parse(args[0], conf);
Hits hits = bean.search(query, 10);
System.out.println("Total hits: " + hits.getTotal());
int length = (int)Math.min(hits.getTotal(), 10);
Hit[] show = hits.getHits(0, length);
HitDetails[] details = bean.getDetails(show);
Summary[] summaries = bean.getSummary(details, query);
for (int i = 0; i < hits.getLength(); i++) {
System.out.println(" "+i+" "+ details[i] + "\n" + summaries[i]);
}
}
It was a bit of a drama to get this working, but there it is.
--Kai Middleton
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