| /** |
| * 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.kahadb.journal; |
| |
| import java.io.File; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import junit.framework.TestCase; |
| import org.apache.kahadb.journal.Journal; |
| import org.apache.kahadb.util.ByteSequence; |
| |
| public class JournalTest extends TestCase { |
| protected static final int DEFAULT_MAX_BATCH_SIZE = 1024 * 1024 * 4; |
| |
| Journal dataManager; |
| File dir; |
| |
| @Override |
| public void setUp() throws Exception { |
| dir = new File("target/tests/DataFileAppenderTest"); |
| dir.mkdirs(); |
| dataManager = new Journal(); |
| dataManager.setDirectory(dir); |
| configure(dataManager); |
| dataManager.start(); |
| } |
| |
| protected void configure(Journal dataManager) { |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| dataManager.close(); |
| deleteFilesInDirectory(dir); |
| dir.delete(); |
| } |
| |
| private void deleteFilesInDirectory(File directory) { |
| File[] files = directory.listFiles(); |
| for (int i=0; i<files.length; i++) { |
| File f = files[i]; |
| if (f.isDirectory()) { |
| deleteFilesInDirectory(f); |
| } |
| f.delete(); |
| } |
| } |
| |
| public void testBatchWriteCallbackCompleteAfterTimeout() throws Exception { |
| final int iterations = 10; |
| final CountDownLatch latch = new CountDownLatch(iterations); |
| ByteSequence data = new ByteSequence("DATA".getBytes()); |
| for (int i=0; i < iterations; i++) { |
| dataManager.write(data, new Runnable() { |
| public void run() { |
| latch.countDown(); |
| } |
| }); |
| } |
| // at this point most probably dataManager.getInflightWrites().size() >= 0 |
| // as the Thread created in DataFileAppender.enqueue() may not have caught up. |
| assertTrue("queued data is written", latch.await(5, TimeUnit.SECONDS)); |
| } |
| |
| public void testBatchWriteCallbackCompleteAfterClose() throws Exception { |
| final int iterations = 10; |
| final CountDownLatch latch = new CountDownLatch(iterations); |
| ByteSequence data = new ByteSequence("DATA".getBytes()); |
| for (int i=0; i<iterations; i++) { |
| dataManager.write(data, new Runnable() { |
| public void run() { |
| latch.countDown(); |
| } |
| }); |
| } |
| dataManager.close(); |
| assertTrue("queued data is written", dataManager.getInflightWrites().isEmpty()); |
| assertEquals("none written", 0, latch.getCount()); |
| } |
| |
| public void testBatchWriteCompleteAfterClose() throws Exception { |
| ByteSequence data = new ByteSequence("DATA".getBytes()); |
| final int iterations = 10; |
| for (int i=0; i<iterations; i++) { |
| dataManager.write(data, false); |
| } |
| dataManager.close(); |
| assertTrue("queued data is written:" + dataManager.getInflightWrites().size(), dataManager.getInflightWrites().isEmpty()); |
| } |
| |
| public void testBatchWriteToMaxMessageSize() throws Exception { |
| final int iterations = 4; |
| final CountDownLatch latch = new CountDownLatch(iterations); |
| Runnable done = new Runnable() { |
| public void run() { |
| latch.countDown(); |
| } |
| }; |
| int messageSize = DEFAULT_MAX_BATCH_SIZE / iterations; |
| byte[] message = new byte[messageSize]; |
| ByteSequence data = new ByteSequence(message); |
| |
| for (int i=0; i< iterations; i++) { |
| dataManager.write(data, done); |
| } |
| |
| // write may take some time |
| assertTrue("all callbacks complete", latch.await(10, TimeUnit.SECONDS)); |
| } |
| |
| public void testNoBatchWriteWithSync() throws Exception { |
| ByteSequence data = new ByteSequence("DATA".getBytes()); |
| final int iterations = 10; |
| for (int i=0; i<iterations; i++) { |
| dataManager.write(data, true); |
| assertTrue("queued data is written", dataManager.getInflightWrites().isEmpty()); |
| } |
| } |
| } |