/*
* 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.journal;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.util.ByteSequence;
import org.apache.activemq.util.IOHelper;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
* Test the single threaded DataFileAppender class.
*/
public class TargetedDataFileAppenderTest {
private Journal dataManager;
private TargetedDataFileAppender appender;
private DataFile dataFile;
private File dir;
@Before
public void setUp() throws Exception {
dir = new File("target/tests/TargetedDataFileAppenderTest");
dir.mkdirs();
dataManager = new Journal();
dataManager.setDirectory(dir);
dataManager.start();
dataFile = dataManager.reserveDataFile();
appender = new TargetedDataFileAppender(dataManager, dataFile);
}
@After
public void tearDown() throws Exception {
dataManager.close();
IOHelper.delete(dir);
}
@Test
public void testWritesAreBatched() throws Exception {
final int iterations = 10;
ByteSequence data = new ByteSequence("DATA".getBytes());
for (int i = 0; i < iterations; i++) {
appender.storeItem(data, Journal.USER_RECORD_TYPE, false);
}
assertTrue("Data file should not be empty", dataFile.getLength() > 0);
assertTrue("Data file should be empty", dataFile.getFile().length() == 0);
appender.close();
// at this point most probably dataManager.getInflightWrites().size() >= 0
// as the Thread created in DataFileAppender.enqueue() may not have caught up.
assertTrue("Data file should not be empty", dataFile.getLength() > 0);
assertTrue("Data file should not be empty", dataFile.getFile().length() > 0);
}
@Test
public void testBatchWritesCompleteAfterClose() throws Exception {
final int iterations = 10;
ByteSequence data = new ByteSequence("DATA".getBytes());
for (int i = 0; i < iterations; i++) {
appender.storeItem(data, Journal.USER_RECORD_TYPE, false);
}
appender.close();
// at this point most probably dataManager.getInflightWrites().size() >= 0
// as the Thread created in DataFileAppender.enqueue() may not have caught up.
assertTrue("Data file should not be empty", dataFile.getLength() > 0);
assertTrue("Data file should not be empty", dataFile.getFile().length() > 0);
}
@Test
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++) {
appender.storeItem(data, Journal.USER_RECORD_TYPE, new Runnable() {
@Override
public void run() {
latch.countDown();
}
});
}
appender.close();
// 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));
assertTrue("Data file should not be empty", dataFile.getLength() > 0);
assertTrue("Data file should not be empty", dataFile.getFile().length() > 0);
}
}