| /* |
| * 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 org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.PathFilter; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class FileSystemUtilTest extends FileSystemUtilTestBase { |
| |
| @Test |
| public void testListDirectoriesWithoutFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listDirectories(fs, base, false); |
| assertEquals("Directory count should match", 4, statuses.size()); |
| } |
| |
| @Test |
| public void testListDirectoriesWithFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listDirectories(fs, base, false, |
| (PathFilter) path -> path.getName().endsWith("a")); |
| assertEquals("Directory count should match", 3, statuses.size()); |
| |
| Collections.sort(statuses); |
| assertEquals("Directory name should match", ".a", statuses.get(0).getPath().getName()); |
| assertEquals("Directory name should match", "_a", statuses.get(1).getPath().getName()); |
| assertEquals("Directory name should match", "a", statuses.get(2).getPath().getName()); |
| } |
| |
| @Test |
| public void testListDirectoriesRecursiveWithoutFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listDirectories(fs, base, true); |
| assertEquals("Directory count should match", 5, statuses.size()); |
| } |
| |
| @Test |
| public void testListDirectoriesRecursiveWithFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listDirectories(fs, base, true, |
| (PathFilter) path -> path.getName().endsWith("a")); |
| assertEquals("Directory count should match", 4, statuses.size()); |
| |
| Collections.sort(statuses); |
| assertEquals("Directory name should match", ".a", statuses.get(0).getPath().getName()); |
| assertEquals("Directory name should match", "_a", statuses.get(1).getPath().getName()); |
| assertEquals("Directory name should match", "a", statuses.get(2).getPath().getName()); |
| assertEquals("Directory name should match", "aa", statuses.get(3).getPath().getName()); |
| } |
| |
| @Test |
| public void testListDirectoriesEmptyResult() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listDirectories(fs, base, false, |
| (PathFilter) path -> path.getName().startsWith("abc")); |
| assertEquals("Directory count should match", 0, statuses.size()); |
| } |
| |
| @Test |
| public void testListFilesWithoutFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listFiles(fs, new Path(base, "a"), false); |
| assertEquals("File count should match", 3, statuses.size()); |
| } |
| |
| @Test |
| public void testListFilesWithFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listFiles(fs, new Path(base, "a"), false, |
| (PathFilter) path -> path.getName().endsWith(".txt")); |
| assertEquals("File count should match", 3, statuses.size()); |
| |
| Collections.sort(statuses); |
| assertEquals("File name should match", ".f.txt", statuses.get(0).getPath().getName()); |
| assertEquals("File name should match", "_f.txt", statuses.get(1).getPath().getName()); |
| assertEquals("File name should match", "f.txt", statuses.get(2).getPath().getName()); |
| } |
| |
| @Test |
| public void testListFilesRecursiveWithoutFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listFiles(fs, base, true); |
| assertEquals("File count should match", 11, statuses.size()); |
| } |
| |
| @Test |
| public void testListFilesRecursiveWithFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listFiles(fs, base, true, |
| (PathFilter) path -> path.getName().endsWith("a") || path.getName().endsWith(".txt")); |
| |
| assertEquals("File count should match", 8, statuses.size()); |
| } |
| |
| @Test |
| public void testListFilesEmptyResult() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listFiles(fs, base, false); |
| assertEquals("File count should match", 0, statuses.size()); |
| } |
| |
| @Test |
| public void testListAllWithoutFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listAll(fs, new Path(base, "a"), false); |
| assertEquals("Directory and file count should match", 4, statuses.size()); |
| } |
| |
| @Test |
| public void testListAllWithFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listAll(fs, new Path(base, "a"), false, |
| (PathFilter) path -> path.getName().endsWith("a") || path.getName().endsWith(".txt")); |
| assertEquals("Directory and file count should match", 4, statuses.size()); |
| } |
| |
| @Test |
| public void testListAllRecursiveWithoutFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listAll(fs, new Path(base, "a"), true); |
| assertEquals("Directory and file count should match", 7, statuses.size()); |
| } |
| |
| @Test |
| public void testListAllRecursiveWithFilter() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listAll(fs, new Path(base, "a"), true, |
| (PathFilter) path -> path.getName().endsWith("a") || path.getName().endsWith(".txt")); |
| assertEquals("Directory and file count should match", 7, statuses.size()); |
| } |
| |
| @Test |
| public void testListAllEmptyResult() throws IOException { |
| List<FileStatus> statuses = FileSystemUtil.listAll(fs, base, false, |
| (PathFilter) path -> path.getName().startsWith("xyz")); |
| assertEquals("Directory and file count should match", 0, statuses.size()); |
| } |
| |
| @Test |
| public void testMergeFiltersWithMissingParameters() { |
| PathFilter filter = path -> path.getName().startsWith("a"); |
| |
| assertEquals("Should have returned initial filter", filter, FileSystemUtil.mergeFilters(filter, null)); |
| assertEquals("Should have returned initial filter", filter, FileSystemUtil.mergeFilters(filter, new PathFilter[]{})); |
| assertEquals("Should have returned dummy filter", FileSystemUtil.DUMMY_FILTER, FileSystemUtil.mergeFilters()); |
| } |
| |
| @Test |
| public void mergeFiltersTrue() { |
| Path file = new Path("abc.txt"); |
| |
| PathFilter firstFilter = path -> path.getName().startsWith("a"); |
| PathFilter secondFilter = path -> path.getName().endsWith(".txt"); |
| |
| assertTrue("Path should have been included in the path list", FileSystemUtil.mergeFilters(firstFilter, secondFilter).accept(file)); |
| assertTrue("Path should have been included in the path list", FileSystemUtil.mergeFilters(firstFilter, new PathFilter[] {secondFilter}).accept(file)); |
| } |
| |
| @Test |
| public void mergeFiltersFalse() { |
| Path file = new Path("abc.txt"); |
| |
| PathFilter firstFilter = path -> path.getName().startsWith("a"); |
| PathFilter secondFilter = path -> path.getName().endsWith(".csv"); |
| |
| assertFalse("Path should have been excluded from the path list", FileSystemUtil.mergeFilters(firstFilter, secondFilter).accept(file)); |
| assertFalse("Path should have been excluded from the path list", FileSystemUtil.mergeFilters(firstFilter, new PathFilter[] {secondFilter}).accept(file)); |
| } |
| |
| @Test |
| public void testListDirectoriesSafe() { |
| Path file = new Path(base, "missing"); |
| List<FileStatus> fileStatuses = FileSystemUtil.listDirectoriesSafe(fs, file, true); |
| assertTrue("Should return empty result", fileStatuses.isEmpty()); |
| } |
| |
| @Test |
| public void testListFilesSafe() { |
| Path file = new Path(base, "missing.txt"); |
| List<FileStatus> fileStatuses = FileSystemUtil.listFilesSafe(fs, file, true); |
| assertTrue("Should return empty result", fileStatuses.isEmpty()); |
| } |
| |
| @Test |
| public void testListAllSafe() { |
| Path file = new Path(base, "missing"); |
| List<FileStatus> fileStatuses = FileSystemUtil.listAllSafe(fs, file, true); |
| assertTrue("Should return empty result", fileStatuses.isEmpty()); |
| } |
| |
| } |