| /* |
| * 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. |
| * |
| */ |
| package org.apache.directory.mavibot.btree; |
| |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.UUID; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.directory.mavibot.btree.serializer.IntSerializer; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| |
| /** |
| * Tests for KeyCursor of a persisted sub-Btree. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class PersistedSubBtreeKeyCursorTest |
| { |
| private BTree<Integer, Integer> btree = null; |
| |
| private RecordManager recordManager = null; |
| |
| @Rule |
| public TemporaryFolder tempFolder = new TemporaryFolder(); |
| |
| private File dataDir = null; |
| |
| |
| @Before |
| public void createBTree() throws IOException |
| { |
| dataDir = tempFolder.newFolder( UUID.randomUUID().toString() ); |
| |
| // Now, try to reload the file back |
| recordManager = new RecordManager( dataDir.getAbsolutePath() ); |
| |
| try |
| { |
| PersistedBTreeConfiguration<Integer, Integer> configuration = new PersistedBTreeConfiguration<Integer, Integer>(); |
| configuration.setAllowDuplicates( false ); |
| configuration.setKeySerializer( IntSerializer.INSTANCE ); |
| configuration.setValueSerializer( IntSerializer.INSTANCE ); |
| configuration.setName( "sub-btree" ); |
| configuration.setBtreeType( BTreeTypeEnum.PERSISTED_SUB ); |
| |
| btree = BTreeFactory.createPersistedBTree( configuration ); |
| |
| recordManager.manage( btree ); |
| } |
| catch ( Exception e ) |
| { |
| throw new RuntimeException( e ); |
| } |
| } |
| |
| |
| @After |
| public void cleanup() throws IOException |
| { |
| dataDir = new File( System.getProperty( "java.io.tmpdir" ) + "/recordman" ); |
| |
| btree.close(); |
| |
| if ( dataDir.exists() ) |
| { |
| FileUtils.deleteDirectory( dataDir ); |
| } |
| |
| recordManager.close(); |
| assertTrue( recordManager.isContextOk() ); |
| } |
| |
| |
| @Test |
| public void testBrowseKeys() throws Exception |
| { |
| for ( int i = 0; i < 10; i++ ) |
| { |
| // only the keys are stored, values are ignored |
| btree.insert( i, i ); |
| } |
| |
| KeyCursor<Integer> cursor = btree.browseKeys(); |
| |
| for ( int i = 0; i < 10; i++ ) |
| { |
| assertTrue( cursor.hasNext() ); |
| assertEquals( String.valueOf( i ), String.valueOf( cursor.next() ) ); |
| } |
| |
| assertFalse( cursor.hasNext() ); |
| |
| cursor.afterLast(); |
| |
| for ( int i = 9; i >= 0; i-- ) |
| { |
| assertTrue( cursor.hasPrev() ); |
| assertEquals( String.valueOf( i ), String.valueOf( cursor.prev() ) ); |
| } |
| |
| assertFalse( cursor.hasPrev() ); |
| cursor.close(); |
| } |
| } |