| /* |
| * 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.drill.exec.util; |
| |
| import com.google.common.base.Strings; |
| import org.apache.commons.io.FileUtils; |
| import org.apache.drill.common.util.DrillFileUtils; |
| import org.apache.drill.exec.ExecTest; |
| import org.apache.drill.test.BaseTest; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.junit.BeforeClass; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| /** |
| * Base test class for file system util classes that will during test initialization |
| * setup file system connection and create directories and files needed for unit tests. |
| */ |
| public class FileSystemUtilTestBase extends BaseTest { |
| |
| /* |
| Directory and file structure created during test initialization: |
| ../a |
| ../a/f.txt |
| ../a/.f.txt |
| ../a/_f.txt |
| |
| ../a/aa |
| ../a/aa/f.txt |
| ../a/aa/.f.txt |
| ../a/aa/_f.txt |
| |
| ../b |
| ../b/f.txt |
| ../b/.f.txt |
| ../b/_f.txt |
| |
| ../.a |
| ../.a/f.txt |
| |
| ../_a |
| ../_a/f.txt |
| */ |
| protected static FileSystem fs; |
| protected static Path base; |
| |
| @BeforeClass |
| public static void setup() throws IOException { |
| // initialize file system |
| fs = ExecTest.getLocalFileSystem(); |
| |
| // create temporary directory with sub-folders and files |
| final File tempDir = DrillFileUtils.createTempDir(); |
| Runtime.getRuntime().addShutdownHook(new Thread(() -> FileUtils.deleteQuietly(tempDir))); |
| base = new Path(tempDir.toURI().getPath()); |
| |
| createDefaultStructure(fs, base, "a", 2); |
| createDefaultStructure(fs, base, "b", 1); |
| |
| // create hidden directory with file |
| Path hiddenDirectory = new Path(base, ".a"); |
| fs.mkdirs(hiddenDirectory); |
| fs.createNewFile(new Path(hiddenDirectory, "f.txt")); |
| |
| // create underscore directory with file |
| Path underscoreDirectory = new Path(base, "_a"); |
| fs.mkdirs(underscoreDirectory); |
| fs.createNewFile(new Path(underscoreDirectory, "f.txt")); |
| } |
| |
| private static void createDefaultStructure(FileSystem fs, Path base, String name, int nesting) throws IOException { |
| Path newBase = base; |
| for (int i = 1; i <= nesting; i++) { |
| Path path = new Path(newBase, Strings.repeat(name, i)); |
| fs.mkdirs(path); |
| for (String fileName : Arrays.asList("f.txt", ".f.txt", "_f.txt")) { |
| fs.createNewFile(new Path(path, fileName)); |
| } |
| newBase = path; |
| } |
| } |
| |
| } |