| /** |
| * 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.cassandra.io.util; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.assertj.core.api.Assertions; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class FileUtilsTest |
| { |
| |
| @BeforeClass |
| public static void setupDD() |
| { |
| DatabaseDescriptor.daemonInitialization(); |
| } |
| |
| @Test |
| public void testParseFileSize() throws Exception |
| { |
| // test straightforward conversions for each unit |
| assertEquals("FileUtils.parseFileSize() failed to parse a whole number of bytes", |
| 256L, FileUtils.parseFileSize("256 bytes")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a whole number of kilobytes", |
| 2048L, FileUtils.parseFileSize("2 KiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a whole number of megabytes", |
| 4194304L, FileUtils.parseFileSize("4 MiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a whole number of gigabytes", |
| 3221225472L, FileUtils.parseFileSize("3 GiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a whole number of terabytes", |
| 5497558138880L, FileUtils.parseFileSize("5 TiB")); |
| // test conversions of fractional units |
| assertEquals("FileUtils.parseFileSize() failed to parse a rational number of kilobytes", |
| 1536L, FileUtils.parseFileSize("1.5 KiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a rational number of kilobytes", |
| 4434L, FileUtils.parseFileSize("4.33 KiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a rational number of megabytes", |
| 2359296L, FileUtils.parseFileSize("2.25 MiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a rational number of megabytes", |
| 3292529L, FileUtils.parseFileSize("3.14 MiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a rational number of gigabytes", |
| 1299227607L, FileUtils.parseFileSize("1.21 GiB")); |
| assertEquals("FileUtils.parseFileSize() failed to parse a rational number of terabytes", |
| 6621259022467L, FileUtils.parseFileSize("6.022 TiB")); |
| } |
| |
| @Test |
| public void testTruncate() throws IOException |
| { |
| File file = FileUtils.createDeletableTempFile("testTruncate", "1"); |
| final String expected = "The quick brown fox jumps over the lazy dog"; |
| |
| Files.write(file.toPath(), expected.getBytes()); |
| assertTrue(file.exists()); |
| |
| byte[] b = Files.readAllBytes(file.toPath()); |
| assertEquals(expected, new String(b, StandardCharsets.UTF_8)); |
| |
| FileUtils.truncate(file.getAbsolutePath(), 10); |
| b = Files.readAllBytes(file.toPath()); |
| assertEquals("The quick ", new String(b, StandardCharsets.UTF_8)); |
| |
| FileUtils.truncate(file.getAbsolutePath(), 0); |
| b = Files.readAllBytes(file.toPath()); |
| assertEquals(0, b.length); |
| } |
| |
| @Test |
| public void testFolderSize() throws Exception |
| { |
| File folder = createFolder(Paths.get(DatabaseDescriptor.getAllDataFileLocations()[0], "testFolderSize")); |
| folder.deleteOnExit(); |
| |
| File childFolder = createFolder(Paths.get(folder.getPath(), "child")); |
| |
| File[] files = { |
| createFile(new File(folder, "001"), 10000), |
| createFile(new File(folder, "002"), 1000), |
| createFile(new File(folder, "003"), 100), |
| createFile(new File(childFolder, "001"), 1000), |
| createFile(new File(childFolder, "002"), 2000), |
| }; |
| |
| assertEquals(0, FileUtils.folderSize(new File(folder, "i_dont_exist"))); |
| assertEquals(files[0].length(), FileUtils.folderSize(files[0])); |
| |
| long size = FileUtils.folderSize(folder); |
| assertEquals(Arrays.stream(files).mapToLong(f -> f.length()).sum(), size); |
| } |
| |
| @Test |
| public void testIsContained() |
| { |
| assertTrue(FileUtils.isContained(new File("/tmp/abc"), new File("/tmp/abc"))); |
| assertFalse(FileUtils.isContained(new File("/tmp/abc"), new File("/tmp/abcd"))); |
| assertTrue(FileUtils.isContained(new File("/tmp/abc"), new File("/tmp/abc/d"))); |
| assertTrue(FileUtils.isContained(new File("/tmp/abc/../abc"), new File("/tmp/abc/d"))); |
| assertFalse(FileUtils.isContained(new File("/tmp/abc/../abc"), new File("/tmp/abcc"))); |
| } |
| |
| @Test |
| public void testMoveFiles() throws IOException |
| { |
| Path tmpDir = Files.createTempDirectory(this.getClass().getSimpleName()); |
| Path sourceDir = Files.createDirectory(tmpDir.resolve("source")); |
| Path subDir_1 = Files.createDirectory(sourceDir.resolve("a")); |
| subDir_1.resolve("file_1.txt").toFile().createNewFile(); |
| subDir_1.resolve("file_2.txt").toFile().createNewFile(); |
| Path subDir_11 = Files.createDirectory(subDir_1.resolve("ab")); |
| subDir_11.resolve("file_1.txt").toFile().createNewFile(); |
| subDir_11.resolve("file_2.txt").toFile().createNewFile(); |
| subDir_11.resolve("file_3.txt").toFile().createNewFile(); |
| Path subDir_12 = Files.createDirectory(subDir_1.resolve("ac")); |
| Path subDir_2 = Files.createDirectory(sourceDir.resolve("b")); |
| subDir_2.resolve("file_1.txt").toFile().createNewFile(); |
| subDir_2.resolve("file_2.txt").toFile().createNewFile(); |
| |
| Path targetDir = Files.createDirectory(tmpDir.resolve("target")); |
| |
| FileUtils.moveRecursively(sourceDir, targetDir); |
| |
| assertThat(sourceDir).doesNotExist(); |
| assertThat(targetDir.resolve("a/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("a/file_2.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_2.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_3.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_2.txt")).exists(); |
| assertThat(targetDir.resolve("a/ac/")).exists(); |
| assertThat(targetDir.resolve("b/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("b/file_2.txt")).exists(); |
| |
| // Tests that files can be moved into existing directories |
| |
| sourceDir = Files.createDirectory(tmpDir.resolve("source2")); |
| subDir_1 = Files.createDirectory(sourceDir.resolve("a")); |
| subDir_1.resolve("file_3.txt").toFile().createNewFile(); |
| subDir_11 = Files.createDirectory(subDir_1.resolve("ab")); |
| subDir_11.resolve("file_4.txt").toFile().createNewFile(); |
| |
| FileUtils.moveRecursively(sourceDir, targetDir); |
| |
| assertThat(sourceDir).doesNotExist(); |
| assertThat(targetDir.resolve("a/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("a/file_2.txt")).exists(); |
| assertThat(targetDir.resolve("a/file_3.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_2.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_3.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_4.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("a/ab/file_2.txt")).exists(); |
| assertThat(targetDir.resolve("a/ac/")).exists(); |
| assertThat(targetDir.resolve("b/file_1.txt")).exists(); |
| assertThat(targetDir.resolve("b/file_2.txt")).exists(); |
| |
| // Tests that existing files are not replaced but trigger an error. |
| |
| sourceDir = Files.createDirectory(tmpDir.resolve("source3")); |
| subDir_1 = Files.createDirectory(sourceDir.resolve("a")); |
| subDir_1.resolve("file_3.txt").toFile().createNewFile(); |
| FileUtils.moveRecursively(sourceDir, targetDir); |
| |
| assertThat(sourceDir).exists(); |
| assertThat(sourceDir.resolve("a/file_3.txt")).exists(); |
| assertThat(targetDir.resolve("a/file_3.txt")).exists(); |
| } |
| |
| @Test |
| public void testDeleteDirectoryIfEmpty() throws IOException |
| { |
| Path tmpDir = Files.createTempDirectory(this.getClass().getSimpleName()); |
| Path subDir_1 = Files.createDirectory(tmpDir.resolve("a")); |
| Path subDir_2 = Files.createDirectory(tmpDir.resolve("b")); |
| Path file_1 = subDir_2.resolve("file_1.txt"); |
| file_1.toFile().createNewFile(); |
| |
| FileUtils.deleteDirectoryIfEmpty(subDir_1); |
| assertThat(subDir_1).doesNotExist(); |
| |
| FileUtils.deleteDirectoryIfEmpty(subDir_2); |
| assertThat(subDir_2).exists(); |
| |
| Assertions.assertThatThrownBy(() -> FileUtils.deleteDirectoryIfEmpty(file_1)) |
| .isInstanceOf(IllegalArgumentException.class) |
| .hasMessageContaining("is not a directory"); |
| } |
| |
| |
| private File createFolder(Path path) |
| { |
| File folder = path.toFile(); |
| FileUtils.createDirectory(folder); |
| return folder; |
| } |
| |
| private File createFile(File file, long size) |
| { |
| try (RandomAccessFile f = new RandomAccessFile(file, "rw")) |
| { |
| f.setLength(size); |
| } |
| catch (Exception e) |
| { |
| System.err.println(e); |
| } |
| return file; |
| } |
| } |