package org.apache.lucene.store;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 java.util.HashSet;
import java.util.Random;
import java.io.File;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.search.IndexSearcher;
public class TestWindowsMMap extends LuceneTestCase {
private final static String alphabet = "abcdefghijklmnopqrstuvwzyz";
private Random random;
public void setUp() throws Exception {
super.setUp();
random = newRandom();
}
private String randomToken() {
int tl = 1 + random.nextInt(7);
StringBuffer sb = new StringBuffer();
for(int cx = 0; cx < tl; cx ++) {
int c = random.nextInt(25);
sb.append(alphabet.substring(c, c+1));
}
return sb.toString();
}
private String randomField() {
int fl = 1 + random.nextInt(3);
StringBuffer fb = new StringBuffer();
for(int fx = 0; fx < fl; fx ++) {
fb.append(randomToken());
fb.append(" ");
}
return fb.toString();
}
private final static String storePathname =
new File(System.getProperty("tempDir"),"testLuceneMmap").getAbsolutePath();
public void testMmapIndex() throws Exception {
FSDirectory storeDirectory;
storeDirectory = new MMapDirectory(new File(storePathname), null);
// plan to add a set of useful stopwords, consider changing some of the
// interior filters.
StandardAnalyzer analyzer = new StandardAnalyzer(new HashSet());
// TODO: something about lock timeouts and leftover locks.
IndexWriter writer = new IndexWriter(storeDirectory, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);
IndexSearcher searcher = new IndexSearcher(storePathname);
for(int dx = 0; dx < 1000; dx ++) {
String f = randomField();
Document doc = new Document();
doc.add(new Field("data", f, Field.Store.YES, Field.Index.ANALYZED));
writer.addDocument(doc);
}
searcher.close();
writer.close();
rmDir(new File(storePathname));
}
private void rmDir(File dir) {
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
files[i].delete();
}
dir.delete();
}
}