source: trunk/gsdl3/web/sites/localsite/collect/gberg/java/Search.java@ 5956

/*
 * search.java
 *
 * Created on 25 February 2003, 02:25
 */


/**
 *
 * @author  [email protected]
 * @version 
 */

import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.search.Searcher;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.Hits;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.index.Term;

public class Search  {

    public static void main (String args[]) {
    
    if (args.length == 0) {
        System.out.println("Usage: Search <index directory>");
        return;
    }
        try {
        Searcher searcher = new IndexSearcher(args[0]);
        Analyzer analyzer = new StandardAnalyzer();

        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        while (true) {
        System.out.print("Query: ");
        String line = in.readLine();
        
        if (line.length() == -1)
            break;
        
        Term term = new Term("content",line);
        
        Query query = new TermQuery(term);
        System.out.println("Searching for: " + query.toString("content"));
        
        Hits hits = searcher.search(query);
        System.out.println(hits.length() + " total matching documents");
        
        final int HITS_PER_PAGE=10;
        
        for (int start = 0; start < hits.length(); start += HITS_PER_PAGE) {
            int end = Math.min(hits.length(), start + HITS_PER_PAGE);
            for (int i = start; i < end; i++) {
            Document doc = hits.doc(i);
            String node_id= doc.get("nodeID");
            System.out.println(i + ". ID: "+node_id);
            }
            
            if (hits.length() > end) {
            System.out.print("more (y/n) ? ");
            line = in.readLine();
            if (line.length() == 0 || line.charAt(0) == 'n')
                break;
            }
        }
        
        }
        
        searcher.close();
    }
    catch (Exception e) {
        System.out.println(" caught a " + e.getClass() +
                   "\n with message: " + e.getMessage());
        }
    }
}