| /** |
| * 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.tools; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.io.IOUtils; |
| import org.apache.hadoop.io.SequenceFile; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.tools.util.DistCpUtils; |
| import org.apache.hadoop.security.Credentials; |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import java.io.DataOutputStream; |
| import java.net.URI; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class TestGlobbedCopyListing { |
| |
| private static MiniDFSCluster cluster; |
| |
| private static final Credentials CREDENTIALS = new Credentials(); |
| |
| public static Map<String, String> expectedValues = new HashMap<String, String>(); |
| |
| @BeforeClass |
| public static void setup() throws Exception { |
| cluster = new MiniDFSCluster(new Configuration(), 1, true, null); |
| createSourceData(); |
| } |
| |
| private static void createSourceData() throws Exception { |
| mkdirs("/tmp/source/1"); |
| mkdirs("/tmp/source/2"); |
| mkdirs("/tmp/source/2/3"); |
| mkdirs("/tmp/source/2/3/4"); |
| mkdirs("/tmp/source/5"); |
| touchFile("/tmp/source/5/6"); |
| mkdirs("/tmp/source/7"); |
| mkdirs("/tmp/source/7/8"); |
| touchFile("/tmp/source/7/8/9"); |
| } |
| |
| private static void mkdirs(String path) throws Exception { |
| FileSystem fileSystem = null; |
| try { |
| fileSystem = cluster.getFileSystem(); |
| fileSystem.mkdirs(new Path(path)); |
| recordInExpectedValues(path); |
| } |
| finally { |
| IOUtils.cleanup(null, fileSystem); |
| } |
| } |
| |
| private static void touchFile(String path) throws Exception { |
| FileSystem fileSystem = null; |
| DataOutputStream outputStream = null; |
| try { |
| fileSystem = cluster.getFileSystem(); |
| outputStream = fileSystem.create(new Path(path), true, 0); |
| recordInExpectedValues(path); |
| } |
| finally { |
| IOUtils.cleanup(null, fileSystem, outputStream); |
| } |
| } |
| |
| private static void recordInExpectedValues(String path) throws Exception { |
| FileSystem fileSystem = cluster.getFileSystem(); |
| Path sourcePath = new Path(fileSystem.getUri().toString() + path); |
| expectedValues.put(sourcePath.toString(), DistCpUtils.getRelativePath( |
| new Path("/tmp/source"), sourcePath)); |
| } |
| |
| @AfterClass |
| public static void tearDown() { |
| cluster.shutdown(); |
| } |
| |
| @Test |
| public void testRun() throws Exception { |
| final URI uri = cluster.getFileSystem().getUri(); |
| final String pathString = uri.toString(); |
| Path fileSystemPath = new Path(pathString); |
| Path source = new Path(fileSystemPath.toString() + "/tmp/source"); |
| Path target = new Path(fileSystemPath.toString() + "/tmp/target"); |
| Path listingPath = new Path(fileSystemPath.toString() + "/tmp/META/fileList.seq"); |
| DistCpOptions options = new DistCpOptions(Arrays.asList(source), target); |
| |
| new GlobbedCopyListing(new Configuration(), CREDENTIALS).buildListing(listingPath, options); |
| |
| verifyContents(listingPath); |
| } |
| |
| private void verifyContents(Path listingPath) throws Exception { |
| SequenceFile.Reader reader = new SequenceFile.Reader(cluster.getFileSystem(), |
| listingPath, new Configuration()); |
| Text key = new Text(); |
| FileStatus value = new FileStatus(); |
| Map<String, String> actualValues = new HashMap<String, String>(); |
| while (reader.next(key, value)) { |
| actualValues.put(value.getPath().toString(), key.toString()); |
| } |
| |
| Assert.assertEquals(expectedValues.size(), actualValues.size()); |
| for (Map.Entry<String, String> entry : actualValues.entrySet()) { |
| Assert.assertEquals(entry.getValue(), expectedValues.get(entry.getKey())); |
| } |
| } |
| } |