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* 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.flume.channel.file;
import com.google.common.collect.Lists;
import com.google.common.io.Files;
import com.google.protobuf.InvalidProtocolBufferException;
import junit.framework.Assert;
import org.apache.commons.io.FileUtils;
import org.apache.flume.channel.file.proto.ProtosFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Random;
public class TestEventQueueBackingStoreFactory {
static final List<Long> pointersInTestCheckpoint = Arrays.asList(new Long[]{
8589936804L,
4294969563L,
12884904153L,
8589936919L,
4294969678L,
12884904268L,
8589937034L,
4294969793L,
12884904383L
});
File baseDir;
File checkpoint;
File inflightTakes;
File inflightPuts;
File queueSetDir;
@Before
public void setup() throws IOException {
baseDir = Files.createTempDir();
checkpoint = new File(baseDir, "checkpoint");
inflightTakes = new File(baseDir, "takes");
inflightPuts = new File(baseDir, "puts");
queueSetDir = new File(baseDir, "queueset");
TestUtils.copyDecompressed("fileformat-v2-checkpoint.gz", checkpoint);
}
@After
public void teardown() {
FileUtils.deleteQuietly(baseDir);
}
@Test
public void testWithNoFlag() throws Exception {
verify(EventQueueBackingStoreFactory.get(checkpoint, 10, "test"),
Serialization.VERSION_3, pointersInTestCheckpoint);
}
@Test
public void testWithFlag() throws Exception {
verify(EventQueueBackingStoreFactory.get(checkpoint, 10, "test", true),
Serialization.VERSION_3, pointersInTestCheckpoint);
}
@Test
public void testNoUprade() throws Exception {
verify(EventQueueBackingStoreFactory.get(checkpoint, 10, "test", false),
Serialization.VERSION_2, pointersInTestCheckpoint);
}
@Test(expected = BadCheckpointException.class)
public void testDecreaseCapacity() throws Exception {
Assert.assertTrue(checkpoint.delete());
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
EventQueueBackingStoreFactory.get(checkpoint, 9, "test");
Assert.fail();
}
@Test(expected = BadCheckpointException.class)
public void testIncreaseCapacity() throws Exception {
Assert.assertTrue(checkpoint.delete());
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
EventQueueBackingStoreFactory.get(checkpoint, 11, "test");
Assert.fail();
}
@Test
public void testNewCheckpoint() throws Exception {
Assert.assertTrue(checkpoint.delete());
verify(EventQueueBackingStoreFactory.get(checkpoint, 10, "test", false),
Serialization.VERSION_3, Collections.<Long>emptyList());
}
@Test(expected = BadCheckpointException.class)
public void testCheckpointBadVersion() throws Exception {
RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
try {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
writer.seek(EventQueueBackingStoreFile.INDEX_VERSION * Serialization.SIZE_OF_LONG);
writer.writeLong(94L);
writer.getFD().sync();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} finally {
writer.close();
}
}
@Test(expected = BadCheckpointException.class)
public void testIncompleteCheckpoint() throws Exception {
RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
try {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
writer.seek(EventQueueBackingStoreFile.INDEX_CHECKPOINT_MARKER * Serialization.SIZE_OF_LONG);
writer.writeLong(EventQueueBackingStoreFile.CHECKPOINT_INCOMPLETE);
writer.getFD().sync();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} finally {
writer.close();
}
}
@Test(expected = BadCheckpointException.class)
public void testCheckpointVersionNotEqualToMeta() throws Exception {
RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
try {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
writer.seek(EventQueueBackingStoreFile.INDEX_VERSION * Serialization.SIZE_OF_LONG);
writer.writeLong(2L);
writer.getFD().sync();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} finally {
writer.close();
}
}
@Test(expected = BadCheckpointException.class)
public void testCheckpointVersionNotEqualToMeta2() throws Exception {
FileOutputStream os = null;
try {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
Assert.assertTrue(checkpoint.exists());
Assert.assertTrue(Serialization.getMetaDataFile(checkpoint).length() != 0);
FileInputStream is = new FileInputStream(Serialization.getMetaDataFile(checkpoint));
ProtosFactory.Checkpoint meta = ProtosFactory.Checkpoint.parseDelimitedFrom(is);
Assert.assertNotNull(meta);
is.close();
os = new FileOutputStream(Serialization.getMetaDataFile(checkpoint));
meta.toBuilder().setVersion(2).build().writeDelimitedTo(os);
os.flush();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} finally {
os.close();
}
}
@Test(expected = BadCheckpointException.class)
public void testCheckpointOrderIdNotEqualToMeta() throws Exception {
RandomAccessFile writer = new RandomAccessFile(checkpoint, "rw");
try {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
writer.seek(EventQueueBackingStoreFile.INDEX_WRITE_ORDER_ID * Serialization.SIZE_OF_LONG);
writer.writeLong(2L);
writer.getFD().sync();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} finally {
writer.close();
}
}
@Test(expected = BadCheckpointException.class)
public void testCheckpointOrderIdNotEqualToMeta2() throws Exception {
FileOutputStream os = null;
try {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
Assert.assertTrue(checkpoint.exists());
Assert.assertTrue(Serialization.getMetaDataFile(checkpoint).length() != 0);
FileInputStream is = new FileInputStream(Serialization.getMetaDataFile(checkpoint));
ProtosFactory.Checkpoint meta = ProtosFactory.Checkpoint.parseDelimitedFrom(is);
Assert.assertNotNull(meta);
is.close();
os = new FileOutputStream(
Serialization.getMetaDataFile(checkpoint));
meta.toBuilder().setWriteOrderID(1).build().writeDelimitedTo(os);
os.flush();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} finally {
os.close();
}
}
@Test(expected = BadCheckpointException.class)
public void testTruncateMeta() throws Exception {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
Assert.assertTrue(checkpoint.exists());
File metaFile = Serialization.getMetaDataFile(checkpoint);
Assert.assertTrue(metaFile.length() != 0);
RandomAccessFile writer = new RandomAccessFile(metaFile, "rw");
writer.setLength(0);
writer.getFD().sync();
writer.close();
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
}
@Test(expected = InvalidProtocolBufferException.class)
public void testCorruptMeta() throws Throwable {
EventQueueBackingStore backingStore =
EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
backingStore.close();
Assert.assertTrue(checkpoint.exists());
File metaFile = Serialization.getMetaDataFile(checkpoint);
Assert.assertTrue(metaFile.length() != 0);
RandomAccessFile writer = new RandomAccessFile(metaFile, "rw");
writer.seek(10);
writer.writeLong(new Random().nextLong());
writer.getFD().sync();
writer.close();
try {
backingStore = EventQueueBackingStoreFactory.get(checkpoint, 10, "test");
} catch (BadCheckpointException ex) {
throw ex.getCause();
}
}
private void verify(EventQueueBackingStore backingStore, long expectedVersion,
List<Long> expectedPointers) throws Exception {
FlumeEventQueue queue =
new FlumeEventQueue(backingStore, inflightTakes, inflightPuts, queueSetDir);
List<Long> actualPointers = Lists.newArrayList();
FlumeEventPointer ptr;
while ((ptr = queue.removeHead(0L)) != null) {
actualPointers.add(ptr.toLong());
}
Assert.assertEquals(expectedPointers, actualPointers);
Assert.assertEquals(10, backingStore.getCapacity());
DataInputStream in = new DataInputStream(new FileInputStream(checkpoint));
long actualVersion = in.readLong();
Assert.assertEquals(expectedVersion, actualVersion);
in.close();
}
}