io.datalayer.lucene.search.SimpleQueryMain.java Source code

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Here is the source code for io.datalayer.lucene.search.SimpleQueryMain.java

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package io.datalayer.lucene.search;

import java.io.File;
import java.io.IOException;

import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SimpleQueryMain {
    private static final Logger LOGGER = LoggerFactory.getLogger(SimpleQueryMain.class);

    public static void main(String... args) throws IOException {

        Directory dir = FSDirectory.open(new File("/tmp/index"));
        IndexReader reader = DirectoryReader.open(dir);
        IndexSearcher searcher = new IndexSearcher(reader);

        Query q = new TermQuery(new Term("contents", "lucene"));
        TopDocs topDocs = searcher.search(q, 10);
        LOGGER.info("Hits Count=" + topDocs.totalHits);
        reader.close();

    }

}