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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.bookkeeper.bookie.storage.ldb;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import com.google.common.collect.Lists;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map.Entry;
import org.apache.bookkeeper.bookie.storage.ldb.KeyValueStorage.Batch;
import org.apache.bookkeeper.bookie.storage.ldb.KeyValueStorage.CloseableIterator;
import org.apache.bookkeeper.bookie.storage.ldb.KeyValueStorageFactory.DbConfigType;
import org.apache.bookkeeper.conf.ServerConfiguration;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
/**
* Unit test for {@link KeyValueStorage}.
*/
@RunWith(Parameterized.class)
public class KeyValueStorageTest {
private final KeyValueStorageFactory storageFactory;
private final ServerConfiguration configuration;
@Parameters
public static Collection<Object[]> configs() {
return Arrays.asList(new Object[][] { { KeyValueStorageRocksDB.factory } });
}
public KeyValueStorageTest(KeyValueStorageFactory storageFactory) {
this.storageFactory = storageFactory;
this.configuration = new ServerConfiguration();
}
private static long fromArray(byte[] array) {
return ArrayUtil.getLong(array, 0);
}
private static byte[] toArray(long n) {
byte[] b = new byte[8];
ArrayUtil.setLong(b, 0, n);
return b;
}
@Test
public void simple() throws Exception {
File tmpDir = File.createTempFile("bookie", "test");
tmpDir.delete();
KeyValueStorage db = storageFactory.newKeyValueStorage(tmpDir.getAbsolutePath(), DbConfigType.Small,
configuration);
assertEquals(null, db.getFloor(toArray(3)));
assertEquals(0, db.count());
db.put(toArray(5), toArray(5));
assertEquals(null, db.getFloor(toArray(3)));
assertEquals(1, db.count());
assertEquals(null, db.getFloor(toArray(5)));
assertEquals(5, fromArray(db.getFloor(toArray(6)).getKey()));
db.put(toArray(3), toArray(3));
assertEquals(null, db.getFloor(toArray(3)));
assertEquals(2, db.count());
// //
db.put(toArray(5), toArray(5));
// Count can be imprecise
assertTrue(db.count() > 0);
assertEquals(null, db.getFloor(toArray(1)));
assertEquals(null, db.getFloor(toArray(3)));
assertEquals(3, fromArray(db.getFloor(toArray(5)).getKey()));
assertEquals(5, fromArray(db.getFloor(toArray(6)).getKey()));
assertEquals(5, fromArray(db.getFloor(toArray(10)).getKey()));
// Iterate
List<Long> foundKeys = Lists.newArrayList();
try (CloseableIterator<Entry<byte[], byte[]>> iter = db.iterator()) {
while (iter.hasNext()) {
foundKeys.add(fromArray(iter.next().getKey()));
}
}
assertEquals(Lists.newArrayList(3L, 5L), foundKeys);
// Iterate over keys
foundKeys = Lists.newArrayList();
CloseableIterator<byte[]> iter2 = db.keys();
try {
while (iter2.hasNext()) {
foundKeys.add(fromArray(iter2.next()));
}
} finally {
iter2.close();
}
assertEquals(Lists.newArrayList(3L, 5L), foundKeys);
// Scan with limits
foundKeys = Lists.newArrayList();
iter2 = db.keys(toArray(1), toArray(4));
try {
while (iter2.hasNext()) {
foundKeys.add(fromArray(iter2.next()));
}
} finally {
iter2.close();
}
assertEquals(Lists.newArrayList(3L), foundKeys);
// Test deletion
db.put(toArray(10), toArray(10));
db.put(toArray(11), toArray(11));
db.put(toArray(12), toArray(12));
db.put(toArray(14), toArray(14));
// Count can be imprecise
assertTrue(db.count() > 0);
assertEquals(10L, fromArray(db.get(toArray(10))));
db.delete(toArray(10));
assertEquals(null, db.get(toArray(10)));
assertTrue(db.count() > 0);
Batch batch = db.newBatch();
batch.remove(toArray(11));
batch.remove(toArray(12));
batch.remove(toArray(13));
batch.flush();
assertEquals(null, db.get(toArray(11)));
assertEquals(null, db.get(toArray(12)));
assertEquals(null, db.get(toArray(13)));
assertEquals(14L, fromArray(db.get(toArray(14))));
batch.close();
db.close();
tmpDir.delete();
}
}