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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.hadoop.hbase.mob;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.KeyValue.Type;
import org.apache.hadoop.hbase.io.hfile.CacheConfig;
import org.apache.hadoop.hbase.io.hfile.HFileContext;
import org.apache.hadoop.hbase.io.hfile.HFileContextBuilder;
import org.apache.hadoop.hbase.regionserver.BloomType;
import org.apache.hadoop.hbase.regionserver.HStoreFile;
import org.apache.hadoop.hbase.regionserver.StoreFileScanner;
import org.apache.hadoop.hbase.regionserver.StoreFileWriter;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
@Category(SmallTests.class)
public class TestMobFile {
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestMobFile.class);
private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private Configuration conf = TEST_UTIL.getConfiguration();
private CacheConfig cacheConf = new CacheConfig(conf);
@Rule
public TestName testName = new TestName();
@Test
public void testReadKeyValue() throws Exception {
Path testDir = TEST_UTIL.getDataTestDir();
FileSystem fs = testDir.getFileSystem(conf);
HFileContext meta = new HFileContextBuilder().withBlockSize(8 * 1024).build();
StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, fs).withOutputDir(testDir)
.withFileContext(meta).build();
String caseName = testName.getMethodName();
MobTestUtil.writeStoreFile(writer, caseName);
MobFile mobFile =
new MobFile(new HStoreFile(fs, writer.getPath(), conf, cacheConf, BloomType.NONE, true));
byte[] family = Bytes.toBytes(caseName);
byte[] qualify = Bytes.toBytes(caseName);
// Test the start key
byte[] startKey = Bytes.toBytes("aa"); // The start key bytes
KeyValue expectedKey =
new KeyValue(startKey, family, qualify, Long.MAX_VALUE, Type.Put, startKey);
KeyValue seekKey = expectedKey.createKeyOnly(false);
Cell cell = mobFile.readCell(seekKey, false).getCell();
MobTestUtil.assertCellEquals(expectedKey, cell);
// Test the end key
byte[] endKey = Bytes.toBytes("zz"); // The end key bytes
expectedKey = new KeyValue(endKey, family, qualify, Long.MAX_VALUE, Type.Put, endKey);
seekKey = expectedKey.createKeyOnly(false);
cell = mobFile.readCell(seekKey, false).getCell();
MobTestUtil.assertCellEquals(expectedKey, cell);
// Test the random key
byte[] randomKey = Bytes.toBytes(MobTestUtil.generateRandomString(2));
expectedKey = new KeyValue(randomKey, family, qualify, Long.MAX_VALUE, Type.Put, randomKey);
seekKey = expectedKey.createKeyOnly(false);
cell = mobFile.readCell(seekKey, false).getCell();
MobTestUtil.assertCellEquals(expectedKey, cell);
// Test the key which is less than the start key
byte[] lowerKey = Bytes.toBytes("a1"); // Smaller than "aa"
expectedKey = new KeyValue(startKey, family, qualify, Long.MAX_VALUE, Type.Put, startKey);
seekKey = new KeyValue(lowerKey, family, qualify, Long.MAX_VALUE, Type.Put, lowerKey);
cell = mobFile.readCell(seekKey, false).getCell();
MobTestUtil.assertCellEquals(expectedKey, cell);
// Test the key which is more than the end key
byte[] upperKey = Bytes.toBytes("z{"); // Bigger than "zz"
seekKey = new KeyValue(upperKey, family, qualify, Long.MAX_VALUE, Type.Put, upperKey);
assertNull(mobFile.readCell(seekKey, false));
}
@Test
public void testGetScanner() throws Exception {
Path testDir = TEST_UTIL.getDataTestDir();
FileSystem fs = testDir.getFileSystem(conf);
HFileContext meta = new HFileContextBuilder().withBlockSize(8*1024).build();
StoreFileWriter writer = new StoreFileWriter.Builder(conf, cacheConf, fs)
.withOutputDir(testDir)
.withFileContext(meta)
.build();
MobTestUtil.writeStoreFile(writer, testName.getMethodName());
MobFile mobFile =
new MobFile(new HStoreFile(fs, writer.getPath(), conf, cacheConf, BloomType.NONE, true));
assertNotNull(mobFile.getScanner());
assertTrue(mobFile.getScanner() instanceof StoreFileScanner);
}
}