content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.cli;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import alluxio.ConfigurationRule;
  import alluxio.conf.Configuration;
  import alluxio.conf.PropertyKey;
  import alluxio.util.CommonUtils;
  import alluxio.util.io.FileUtils;
  import alluxio.util.io.PathUtils;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  
  import java.io.Closeable;
  import java.io.File;
  import java.nio.file.DirectoryStream;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.nio.file.attribute.PosixFilePermissions;
  import java.util.HashMap;
  
  /**
   * Unit tests for {@link Format}.
   */
  public final class FormatTest {
  
    @Rule
    public TemporaryFolder mTemporaryFolder = new TemporaryFolder();
  
    @Test
    public void formatWorker() throws Exception {
      final int storageLevels = 3;
      final String perms = "rwx------";
      String workerDataFolder;
      final File[] dirs = new File[] {
          mTemporaryFolder.newFolder("level0"),
          mTemporaryFolder.newFolder("level1"),
          mTemporaryFolder.newFolder("level2")
      };
      for (File dir : dirs) {
        workerDataFolder = CommonUtils.getWorkerDataDirectory(dir.getPath(),
            Configuration.global());
        FileUtils.createDir(PathUtils.concatPath(workerDataFolder, "subdir"));
        FileUtils.createFile(PathUtils.concatPath(workerDataFolder, "file"));
      }
      try (Closeable r = new ConfigurationRule(new HashMap<PropertyKey, Object>() {
        {
          put(PropertyKey.WORKER_TIERED_STORE_LEVEL0_DIRS_PATH, dirs[0].getPath());
          put(PropertyKey.WORKER_TIERED_STORE_LEVEL1_DIRS_PATH, dirs[1].getPath());
          put(PropertyKey.WORKER_TIERED_STORE_LEVEL2_DIRS_PATH, dirs[2].getPath());
          put(PropertyKey.WORKER_TIERED_STORE_LEVELS, storageLevels);
          put(PropertyKey.WORKER_DATA_FOLDER_PERMISSIONS, perms);
        }
      }, Configuration.modifiableGlobal()).toResource()) {
        Format.format(Format.Mode.WORKER, Configuration.global());
        for (File dir : dirs) {
          workerDataFolder = CommonUtils.getWorkerDataDirectory(dir.getPath(),
              Configuration.global());
          assertTrue(FileUtils.exists(dir.getPath()));
          assertTrue(FileUtils.exists(workerDataFolder));
          assertEquals(PosixFilePermissions.fromString(perms), Files.getPosixFilePermissions(Paths
              .get(workerDataFolder)));
          try (DirectoryStream<Path> directoryStream = Files
              .newDirectoryStream(Paths.get(workerDataFolder))) {
            for (Path child : directoryStream) {
              fail("No sub dirs or files are expected in " + child.toString());
            }
          }
        }
      }
    }
  
    @Test
    public void formatWorkerDeleteFileSameName() throws Exception {
      final int storageLevels = 3;
      String workerDataFolder;
      final File[] dirs = new File[] {
          mTemporaryFolder.newFolder("level0"),
          mTemporaryFolder.newFolder("level1"),
          mTemporaryFolder.newFolder("level2")
      };
      // Have files of same name as the target worker data dir in each tier
      for (File dir : dirs) {
        workerDataFolder = CommonUtils.getWorkerDataDirectory(dir.getPath(),
            Configuration.global());
        FileUtils.createFile(workerDataFolder);
      }
      try (Closeable r = new ConfigurationRule(new HashMap<PropertyKey, Object>() {
        {
          put(PropertyKey.WORKER_TIERED_STORE_LEVEL0_DIRS_PATH, dirs[0].getPath());
          put(PropertyKey.WORKER_TIERED_STORE_LEVEL1_DIRS_PATH, dirs[1].getPath());
          put(PropertyKey.WORKER_TIERED_STORE_LEVEL2_DIRS_PATH, dirs[2].getPath());
          put(PropertyKey.WORKER_TIERED_STORE_LEVELS, storageLevels);
        }
      }, Configuration.modifiableGlobal()).toResource()) {
        final String perms = Configuration.getString(
            PropertyKey.WORKER_DATA_FOLDER_PERMISSIONS);
        Format.format(Format.Mode.WORKER, Configuration.global());
        for (File dir : dirs) {
          workerDataFolder = CommonUtils.getWorkerDataDirectory(dir.getPath(),
              Configuration.global());
          assertTrue(Files.isDirectory(Paths.get(workerDataFolder)));
          assertEquals(PosixFilePermissions.fromString(perms), Files.getPosixFilePermissions(Paths
              .get(workerDataFolder)));
          try (DirectoryStream<Path> directoryStream =
                   Files.newDirectoryStream(Paths.get(workerDataFolder))) {
            for (Path child : directoryStream) {
              fail("No sub dirs or files are expected in " + child.toString());
            }
          }
        }
      }
    }
  }
  