| /** |
| * 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.activemq.store.kahadb.disk.index; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.activemq.store.kahadb.disk.page.PageFile; |
| import org.apache.activemq.store.kahadb.disk.page.Transaction; |
| import org.apache.activemq.util.IOHelper; |
| import org.junit.After; |
| import org.junit.Test; |
| |
| /** |
| * Test a HashIndex |
| */ |
| public abstract class IndexTestSupport extends TestCase { |
| |
| private static final int COUNT = 10000; |
| |
| protected Index<String,Long> index; |
| protected File directory; |
| protected PageFile pf; |
| protected Transaction tx; |
| |
| @Override |
| @After |
| public void tearDown() throws Exception { |
| if( pf!=null ) { |
| pf.unload(); |
| pf.delete(); |
| } |
| } |
| |
| public File getDirectory() { |
| if (directory != null) { |
| IOHelper.delete(directory); |
| } |
| directory = new File(IOHelper.getDefaultDataDirectory() + System.currentTimeMillis()); |
| IOHelper.delete(directory); |
| return directory; |
| } |
| |
| protected void createPageFileAndIndex(int pageSize) throws Exception { |
| pf = new PageFile(getDirectory(), getClass().getName()); |
| pf.setPageSize(pageSize); |
| pf.load(); |
| tx = pf.tx(); |
| this.index = createIndex(); |
| } |
| |
| abstract protected Index<String, Long> createIndex() throws Exception; |
| |
| @Test(timeout=60000) |
| public void testIndex() throws Exception { |
| createPageFileAndIndex(500); |
| this.index.load(tx); |
| tx.commit(); |
| doInsert(COUNT); |
| this.index.unload(tx); |
| tx.commit(); |
| this.index.load(tx); |
| tx.commit(); |
| checkRetrieve(COUNT); |
| doRemove(COUNT); |
| this.index.unload(tx); |
| tx.commit(); |
| this.index.load(tx); |
| tx.commit(); |
| doInsert(COUNT); |
| doRemoveHalf(COUNT); |
| doInsertHalf(COUNT); |
| this.index.unload(tx); |
| tx.commit(); |
| this.index.load(tx); |
| tx.commit(); |
| checkRetrieve(COUNT); |
| this.index.unload(tx); |
| tx.commit(); |
| } |
| |
| void doInsert(int count) throws Exception { |
| for (int i = 0; i < count; i++) { |
| index.put(tx, key(i), (long)i); |
| tx.commit(); |
| } |
| } |
| |
| protected String key(int i) { |
| return "key:"+i; |
| } |
| |
| void checkRetrieve(int count) throws IOException { |
| for (int i = 0; i < count; i++) { |
| Long item = index.get(tx, key(i)); |
| assertNotNull("Key missing: "+key(i), item); |
| } |
| } |
| |
| void doRemoveHalf(int count) throws Exception { |
| for (int i = 0; i < count; i++) { |
| if (i % 2 == 0) { |
| assertNotNull("Expected remove to return value for index "+i, index.remove(tx, key(i))); |
| tx.commit(); |
| } |
| |
| } |
| } |
| |
| void doInsertHalf(int count) throws Exception { |
| for (int i = 0; i < count; i++) { |
| if (i % 2 == 0) { |
| index.put(tx, key(i), (long)i); |
| tx.commit(); |
| } |
| } |
| } |
| |
| void doRemove(int count) throws Exception { |
| for (int i = 0; i < count; i++) { |
| assertNotNull("Expected remove to return value for index "+i, index.remove(tx, key(i))); |
| tx.commit(); |
| } |
| for (int i = 0; i < count; i++) { |
| Long item = index.get(tx, key(i)); |
| assertNull(item); |
| } |
| } |
| |
| void doRemoveBackwards(int count) throws Exception { |
| for (int i = count - 1; i >= 0; i--) { |
| index.remove(tx, key(i)); |
| tx.commit(); |
| } |
| for (int i = 0; i < count; i++) { |
| Long item = index.get(tx, key(i)); |
| assertNull(item); |
| } |
| } |
| } |