/**
* 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.hadoop.hbase.regionserver.compactions;
import static org.apache.hadoop.hbase.regionserver.StripeStoreFileManager.STRIPE_END_KEY;
import static org.apache.hadoop.hbase.regionserver.StripeStoreFileManager.STRIPE_START_KEY;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyBoolean;
import static org.mockito.Matchers.anyLong;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.TreeMap;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.io.hfile.HFile;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
import org.apache.hadoop.hbase.regionserver.ScannerContext;
import org.apache.hadoop.hbase.regionserver.StoreFile;
import org.apache.hadoop.hbase.regionserver.StoreFileReader;
import org.apache.hadoop.hbase.regionserver.StoreFileScanner;
import org.apache.hadoop.hbase.regionserver.StoreFileWriter;
import org.apache.hadoop.hbase.regionserver.StripeMultiFileWriter;
import org.apache.hadoop.hbase.util.Bytes;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
public class TestCompactor {
public static StoreFile createDummyStoreFile(long maxSequenceId) throws Exception {
// "Files" are totally unused, it's Scanner class below that gives compactor fake KVs.
// But compaction depends on everything under the sun, so stub everything with dummies.
StoreFile sf = mock(StoreFile.class);
StoreFileReader r = mock(StoreFileReader.class);
when(r.length()).thenReturn(1L);
when(r.getBloomFilterType()).thenReturn(BloomType.NONE);
when(r.getHFileReader()).thenReturn(mock(HFile.Reader.class));
when(r.getStoreFileScanner(anyBoolean(), anyBoolean(), anyBoolean(), anyLong(), anyLong(),
anyBoolean())).thenReturn(mock(StoreFileScanner.class));
when(sf.getReader()).thenReturn(r);
when(sf.getMaxSequenceId()).thenReturn(maxSequenceId);
return sf;
}
public static CompactionRequest createDummyRequest() throws Exception {
return new CompactionRequest(Arrays.asList(createDummyStoreFile(1L)));
}
// StoreFile.Writer has private ctor and is unwieldy, so this has to be convoluted.
public static class StoreFileWritersCapture
implements Answer<StoreFileWriter>, StripeMultiFileWriter.WriterFactory {
public static class Writer {
public ArrayList<KeyValue> kvs = new ArrayList<>();
public TreeMap<byte[], byte[]> data = new TreeMap<>(Bytes.BYTES_COMPARATOR);
public boolean hasMetadata;
}
private List<Writer> writers = new ArrayList<>();
@Override
public StoreFileWriter createWriter() throws IOException {
final Writer realWriter = new Writer();
writers.add(realWriter);
StoreFileWriter writer = mock(StoreFileWriter.class);
doAnswer(new Answer<Object>() {
public Object answer(InvocationOnMock invocation) {
return realWriter.kvs.add((KeyValue) invocation.getArguments()[0]);
}
}).when(writer).append(any(KeyValue.class));
doAnswer(new Answer<Object>() {
public Object answer(InvocationOnMock invocation) {
Object[] args = invocation.getArguments();
return realWriter.data.put((byte[]) args[0], (byte[]) args[1]);
}
}).when(writer).appendFileInfo(any(byte[].class), any(byte[].class));
doAnswer(new Answer<Void>() {
@Override
public Void answer(InvocationOnMock invocation) throws Throwable {
realWriter.hasMetadata = true;
return null;
}
}).when(writer).appendMetadata(any(long.class), any(boolean.class));
doAnswer(new Answer<Path>() {
@Override
public Path answer(InvocationOnMock invocation) throws Throwable {
return new Path("foo");
}
}).when(writer).getPath();
return writer;
}
@Override
public StoreFileWriter answer(InvocationOnMock invocation) throws Throwable {
return createWriter();
}
public void verifyKvs(KeyValue[][] kvss, boolean allFiles, boolean requireMetadata) {
if (allFiles) {
assertEquals(kvss.length, writers.size());
}
int skippedWriters = 0;
for (int i = 0; i < kvss.length; ++i) {
KeyValue[] kvs = kvss[i];
if (kvs != null) {
Writer w = writers.get(i - skippedWriters);
if (requireMetadata) {
assertNotNull(w.data.get(STRIPE_START_KEY));
assertNotNull(w.data.get(STRIPE_END_KEY));
} else {
assertNull(w.data.get(STRIPE_START_KEY));
assertNull(w.data.get(STRIPE_END_KEY));
}
assertEquals(kvs.length, w.kvs.size());
for (int j = 0; j < kvs.length; ++j) {
assertEquals(kvs[j], w.kvs.get(j));
}
} else {
assertFalse(allFiles);
++skippedWriters;
}
}
}
public void verifyBoundaries(byte[][] boundaries) {
assertEquals(boundaries.length - 1, writers.size());
for (int i = 0; i < writers.size(); ++i) {
assertArrayEquals("i = " + i, boundaries[i], writers.get(i).data.get(STRIPE_START_KEY));
assertArrayEquals("i = " + i, boundaries[i + 1], writers.get(i).data.get(STRIPE_END_KEY));
}
}
public void verifyKvs(KeyValue[][] kvss, boolean allFiles, List<Long> boundaries) {
if (allFiles) {
assertEquals(kvss.length, writers.size());
}
int skippedWriters = 0;
for (int i = 0; i < kvss.length; ++i) {
KeyValue[] kvs = kvss[i];
if (kvs != null) {
Writer w = writers.get(i - skippedWriters);
assertEquals(kvs.length, w.kvs.size());
for (int j = 0; j < kvs.length; ++j) {
assertTrue(kvs[j].getTimestamp() >= boundaries.get(i));
assertTrue(kvs[j].getTimestamp() < boundaries.get(i + 1));
assertEquals(kvs[j], w.kvs.get(j));
}
} else {
assertFalse(allFiles);
++skippedWriters;
}
}
}
public List<Writer> getWriters() {
return writers;
}
}
public static class Scanner implements InternalScanner {
private final ArrayList<KeyValue> kvs;
public Scanner(KeyValue... kvs) {
this.kvs = new ArrayList<>(Arrays.asList(kvs));
}
@Override
public boolean next(List<Cell> results) throws IOException {
if (kvs.isEmpty()) return false;
results.add(kvs.remove(0));
return !kvs.isEmpty();
}
@Override
public boolean next(List<Cell> result, ScannerContext scannerContext) throws IOException {
return next(result);
}
@Override
public void close() throws IOException {
}
}
}