package com.javacodegeeks.lucene;
import java.io.File;
import org.apache.lucene.analysis.SimpleAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
public class SimpleSearcher {
public static void main(String[] args) throws Exception {
File indexDir = new File("c:/index/");
String query = "lucene";
int hits = 100;
SimpleSearcher searcher = new SimpleSearcher();
searcher.searchIndex(indexDir, query, hits);
}
private void searchIndex(File indexDir, String queryStr, int maxHits)
throws Exception {
Directory directory = FSDirectory.open(indexDir);
IndexSearcher searcher = new IndexSearcher(directory);
QueryParser parser = new QueryParser(Version.LUCENE_30,
"contents", new SimpleAnalyzer());
Query query = parser.parse(queryStr);
TopDocs topDocs = searcher.search(query, maxHits);
ScoreDoc[] hits = topDocs.scoreDocs;
for (int i = 0; i < hits.length; i++) {
int docId = hits[i].doc;
Document d = searcher.doc(docId);
System.out.println(d.get("filename"));
}
System.out.println("Found " + hits.length);
}
}
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