| /* |
| * 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.hdfs.server.common.blockaliasmap.impl; |
| |
| import com.google.common.io.Files; |
| import org.apache.commons.io.FileUtils; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| import org.apache.hadoop.hdfs.protocol.ProvidedStorageLocation; |
| import org.apache.hadoop.hdfs.server.aliasmap.InMemoryAliasMap; |
| import org.apache.hadoop.hdfs.server.aliasmap.InMemoryLevelDBAliasMapServer; |
| import org.apache.hadoop.hdfs.server.common.FileRegion; |
| import org.apache.hadoop.net.NetUtils; |
| import org.iq80.leveldb.DBException; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import java.io.File; |
| import java.io.IOException; |
| |
| import static org.assertj.core.api.AssertionsForClassTypes.assertThatExceptionOfType; |
| import static org.mockito.Mockito.doThrow; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| /** |
| * Tests the in-memory alias map with a mock level-db implementation. |
| */ |
| public class TestLevelDbMockAliasMapClient { |
| private InMemoryLevelDBAliasMapServer levelDBAliasMapServer; |
| private InMemoryLevelDBAliasMapClient inMemoryLevelDBAliasMapClient; |
| private File tempDir; |
| private Configuration conf; |
| private InMemoryAliasMap aliasMapMock; |
| private final String bpid = "BPID-0"; |
| |
| @Before |
| public void setUp() throws IOException { |
| aliasMapMock = mock(InMemoryAliasMap.class); |
| when(aliasMapMock.getBlockPoolId()).thenReturn(bpid); |
| levelDBAliasMapServer = new InMemoryLevelDBAliasMapServer( |
| (config, blockPoolID) -> aliasMapMock, bpid); |
| conf = new Configuration(); |
| int port = NetUtils.getFreeSocketPort(); |
| |
| conf.set(DFSConfigKeys.DFS_PROVIDED_ALIASMAP_INMEMORY_RPC_ADDRESS, |
| "localhost:" + port); |
| tempDir = Files.createTempDir(); |
| conf.set(DFSConfigKeys.DFS_PROVIDED_ALIASMAP_INMEMORY_LEVELDB_DIR, |
| tempDir.getAbsolutePath()); |
| levelDBAliasMapServer.setConf(conf); |
| levelDBAliasMapServer.start(); |
| inMemoryLevelDBAliasMapClient = new InMemoryLevelDBAliasMapClient(); |
| inMemoryLevelDBAliasMapClient.setConf(conf); |
| } |
| |
| @After |
| public void tearDown() throws IOException { |
| levelDBAliasMapServer.close(); |
| inMemoryLevelDBAliasMapClient.close(); |
| FileUtils.deleteDirectory(tempDir); |
| } |
| |
| @Test |
| public void readFailure() throws Exception { |
| Block block = new Block(42, 43, 44); |
| doThrow(new IOException()) |
| .doThrow(new DBException()) |
| .when(aliasMapMock) |
| .read(block); |
| |
| assertThatExceptionOfType(IOException.class) |
| .isThrownBy(() -> |
| inMemoryLevelDBAliasMapClient.getReader(null, bpid) |
| .resolve(block)); |
| |
| assertThatExceptionOfType(IOException.class) |
| .isThrownBy(() -> |
| inMemoryLevelDBAliasMapClient.getReader(null, bpid) |
| .resolve(block)); |
| } |
| |
| @Test |
| public void writeFailure() throws IOException { |
| Block block = new Block(42, 43, 44); |
| byte[] nonce = new byte[0]; |
| Path path = new Path("koekoek"); |
| ProvidedStorageLocation providedStorageLocation = |
| new ProvidedStorageLocation(path, 45, 46, nonce); |
| |
| doThrow(new IOException()) |
| .when(aliasMapMock) |
| .write(block, providedStorageLocation); |
| |
| assertThatExceptionOfType(IOException.class) |
| .isThrownBy(() -> |
| inMemoryLevelDBAliasMapClient.getWriter(null, bpid) |
| .store(new FileRegion(block, providedStorageLocation))); |
| |
| assertThatExceptionOfType(IOException.class) |
| .isThrownBy(() -> |
| inMemoryLevelDBAliasMapClient.getWriter(null, bpid) |
| .store(new FileRegion(block, providedStorageLocation))); |
| } |
| |
| } |