mri1.MRI1.java Source code

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Here is the source code for mri1.MRI1.java

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/*
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package mri1;

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

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.StringField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.queryparser.classic.ParseException;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;

/**
 *
 * @author luigi
 */

public class MRI1 {

    /**
     * @param args the command line arguments
     * @throws java.io.IOException
     * @throws org.apache.lucene.queryparser.classic.ParseException
     */
    public static void main(String[] args) throws IOException, ParseException {

        File dest = new File("dest");
        File source = new File("source");
        FSDirectory fsdir = FSDirectory.open(dest);
        IndexWriterConfig iwc = new IndexWriterConfig(Version.LATEST, new StandardAnalyzer());
        iwc.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
        try (IndexWriter writer = new IndexWriter(fsdir, iwc)) {
            File[] listFiles = source.listFiles();
            for (File file : listFiles) {
                System.out.println(file.getName());
                if (file.isFile() && file.getName().endsWith(".txt")) {
                    Document doc = new Document();
                    doc.add(new StringField("path", file.getAbsolutePath(), Field.Store.YES));
                    doc.add(new TextField("content", new FileReader(file)));
                    writer.addDocument(doc);
                }
            }
        }

        DirectoryReader idxReader = DirectoryReader.open(fsdir);
        IndexSearcher searcher = new IndexSearcher(idxReader);
        //Query q=new TermQuery(new Term("content","system"));
        QueryParser parser = new QueryParser("content", new StandardAnalyzer());
        Query q = parser.parse("basic");
        TopDocs topDocs = searcher.search(q, 20);
        ScoreDoc[] sd = topDocs.scoreDocs;
        for (ScoreDoc d : sd) {
            System.out.println(searcher.doc(d.doc).get("path") + "\t" + d.score);
        }

    }

}