com.javapr.plaintextindex.search.Suchen.java Source code

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Here is the source code for com.javapr.plaintextindex.search.Suchen.java

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/*
Copyright 2013 Denny Placzek
    
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    
http://www.apache.org/licenses/LICENSE-2.0
    
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package com.javapr.plaintextindex.search;

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
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.TopDocs;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;

public class Suchen {

    private JFrame frame;
    private JPanel panel;
    private JList list;
    private JPanel panel1;
    private JPanel panelLabel;
    private JScrollPane pane;
    private JLabel labelAnzData;
    private JLabel alert;
    private JLabel suche;
    private JLabel dir;
    private List<Object> list1;

    public void sucheString(String line) throws IOException, ParseException

    {
        frame = new JFrame();
        frame.setTitle("Lucene Suche");
        frame.setSize(400, 180);
        frame.setLocation(400, 400);
        frame.setVisible(true);
        panel = new JPanel(new BorderLayout(5, 5));
        list = new JList();
        panel1 = new JPanel(new GridLayout(1, 1));
        panelLabel = new JPanel(new GridLayout(2, 1));
        pane = new JScrollPane(panel1);
        labelAnzData = new JLabel();
        alert = new JLabel();
        suche = new JLabel();
        dir = new JLabel();
        panel.add(panelLabel, BorderLayout.WEST);
        panel.add(pane, BorderLayout.CENTER);
        frame.add(panel);

        String field = "contents";
        int hitsPerPage = 10;

        try {
            IndexReader indexReader = DirectoryReader.open(FSDirectory.open(new File(Prop.Indexdirectory(null))));
            IndexSearcher indexSearcher = new IndexSearcher(indexReader);
            Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_42);
            QueryParser parser = new QueryParser(Version.LUCENE_42, field, analyzer);

            list1 = new ArrayList<Object>();

            try {
                Query query = parser.parse(line);

                suche = new JLabel("Suche nach: " + line);
                panelLabel.add(suche);

                TopDocs results = indexSearcher.search(query, 5 * hitsPerPage);
                ScoreDoc[] hits = results.scoreDocs;

                int end = hits.length;

                //Liste erzeugen und mit gefundenen Dateinamen fllen
                for (int i = 0; i < end; i++) {
                    Document doc = indexSearcher.doc(hits[i].doc);
                    String path = doc.get("filename");
                    File file = new File(Prop.Filestoindex(null) + "\\" + doc.get("filename"));
                    if (path != null) {
                        list1.add(path + ", " + file.length() / 1024 + "kb");
                    }
                }

                labelAnzData = new JLabel(hits.length + " Gefundene Datei(en): ");
                panelLabel.add(labelAnzData);
                list = new JList(list1.toArray());
                panel1.add(list);

            } catch (ParseException p) {
                alert = new JLabel("String eingeben!");
                panel.add(alert);
                ;
            }
        } catch (IOException e) {
            dir.setText("<html><body>Index-Datei nicht gefunden!<br>Bitte Index erstellen!</body></html>");
            panel.add(dir);
        }
    }

}