com.orientechnologies.lucene.test.LuceneVsLuceneTest.java Source code

Introduction

Here is the source code for com.orientechnologies.lucene.test.LuceneVsLuceneTest.java

Source

/*
 *
 *  * Copyright 2014 Orient Technologies.
 *  *
 *  * 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.orientechnologies.lucene.test;

import com.orientechnologies.lucene.manager.OLuceneIndexManagerAbstract;
import com.orientechnologies.lucene.utils.OLuceneIndexUtils;
import com.orientechnologies.orient.core.command.script.OCommandScript;
import com.orientechnologies.orient.core.metadata.schema.OClass;
import com.orientechnologies.orient.core.metadata.schema.OSchema;
import com.orientechnologies.orient.core.metadata.schema.OType;
import com.orientechnologies.orient.core.record.impl.ODocument;
import com.orientechnologies.orient.core.sql.OCommandSQL;
import com.orientechnologies.orient.core.sql.query.OSQLSynchQuery;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;
import org.apache.lucene.queryparser.classic.ParseException;
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.NIOFSDirectory;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;

/**
 * Created by enricorisa on 08/10/14.
 */
@Test(groups = "embedded")
public class LuceneVsLuceneTest extends BaseLuceneTest {

    private IndexWriter indexWriter;

    @Override
    protected String getDatabaseName() {
        return "LuceneVsLucene";
    }

    @BeforeClass
    public void init() {
        initDB();
        OSchema schema = databaseDocumentTx.getMetadata().getSchema();
        OClass v = schema.getClass("V");
        OClass song = schema.createClass("Song");
        song.setSuperClass(v);
        song.createProperty("title", OType.STRING);
        song.createProperty("author", OType.STRING);

        try {
            Directory dir = getDirectory();
            Analyzer analyzer = new StandardAnalyzer(OLuceneIndexManagerAbstract.LUCENE_VERSION);
            IndexWriterConfig iwc = new IndexWriterConfig(OLuceneIndexManagerAbstract.LUCENE_VERSION, analyzer);
            iwc.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
            indexWriter = new IndexWriter(dir, iwc);

        } catch (IOException e) {
            e.printStackTrace();
        }
        databaseDocumentTx
                .command(new OCommandSQL("create index Song.title on Song (title) FULLTEXT ENGINE LUCENE"))
                .execute();

    }

    protected Directory getDirectory() throws IOException {
        return NIOFSDirectory.open(getPath());
    }

    private File getPath() {
        return new File(buildDirectory + "/databases/" + getDatabaseName());
    }

    @Test
    public void testLuceneVsLucene() throws IOException, ParseException {
        InputStream stream = ClassLoader.getSystemResourceAsStream("testLuceneIndex.sql");

        databaseDocumentTx.command(new OCommandScript("sql", getScriptFromStream(stream))).execute();

        for (ODocument oDocument : databaseDocumentTx.browseClass("Song")) {

            String title = oDocument.field("title");
            if (title != null) {
                Document d = new Document();
                d.add(new Field("title", title, Field.Store.NO, Field.Index.ANALYZED));

                indexWriter.addDocument(d);

            }
        }

        indexWriter.close();
        IndexReader reader = DirectoryReader.open(getDirectory());
        IndexSearcher searcher = new IndexSearcher(reader);
        Query query = new MultiFieldQueryParser(OLuceneIndexManagerAbstract.LUCENE_VERSION,
                new String[] { "title" }, new StandardAnalyzer(OLuceneIndexManagerAbstract.LUCENE_VERSION))
                        .parse("down the");
        final TopDocs docs = searcher.search(query, Integer.MAX_VALUE);
        ScoreDoc[] hits = docs.scoreDocs;
        List<ODocument> oDocs = databaseDocumentTx
                .query(new OSQLSynchQuery<ODocument>("select *,$score from Song where title LUCENE \"down the\""));
        Assert.assertEquals(oDocs.size(), hits.length);

        int i = 0;
        for (ScoreDoc hit : hits) {
            Assert.assertEquals(oDocs.get(i).field("$score"), hit.score);
            i++;
        }
        reader.close();

    }

    protected String getScriptFromStream(InputStream in) {
        String script = "";
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(in));
            StringBuilder out = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                out.append(line + "\n");
            }
            script = out.toString();
            reader.close();
        } catch (Exception e) {

        }
        return script;
    }

    @AfterClass
    public void deInit() {
        deInitDB();
        OLuceneIndexUtils.deleteFolder(getPath());
    }

}