Lucene example source code file (TestSerialization.java)

This example Lucene source code file (TestSerialization.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Lucene tags/keywords

bytearrayoutputstream, bytearrayoutputstream, document, document, exception, field, indexreader, indexwriter, instantiatedindex, instantiatedindex, io, objectoutputstream, objectoutputstream, testserialization, whitespaceanalyzer

The Lucene TestSerialization.java source code

package org.apache.lucene.store.instantiated;

/**
 * Copyright 2006 The Apache Software Foundation
 *
 * 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.
 */


import org.apache.lucene.store.Directory;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;

public class TestSerialization extends LuceneTestCase {

  public void test() throws Exception {
    Directory dir = newDirectory();

    IndexWriter iw = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new WhitespaceAnalyzer(TEST_VERSION_CURRENT)));
    Document doc = new Document();
    doc.add(new Field("foo", "bar rab abr bra rba", Field.Store.NO, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS));
    doc.add(new Field("moo", "bar rab abr bra rba", Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS));
    iw.addDocument(doc);
    iw.close();

    IndexReader ir = IndexReader.open(dir, false);
    InstantiatedIndex ii = new InstantiatedIndex(ir);
    ir.close();

    ByteArrayOutputStream baos = new ByteArrayOutputStream(5000);
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(ii);
    oos.close();
    baos.close();
    dir.close();
    
  }

}