java.nio.file.Files.getPosixFilePermissions()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中java.nio.file.Files.getPosixFilePermissions()方法的一些代码示例，展示了Files.getPosixFilePermissions()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Files.getPosixFilePermissions()方法的具体详情如下：
包路径：java.nio.file.Files
类名称：Files
方法名：getPosixFilePermissions

Files.getPosixFilePermissions介绍

暂无

代码示例

代码示例来源：origin: netty/netty

private static boolean canExecuteExecutable(File file) throws IOException {
  if (PlatformDependent.javaVersion() < 7) {
    // Pre-JDK7, the Java API did not directly support POSIX permissions; instead of implementing a custom
    // work-around, assume true, which disables the check.
    return true;
  }
  // If we can already execute, there is nothing to do.
  if (file.canExecute()) {
    return true;
  }
  // On volumes, with noexec set, even files with the executable POSIX permissions will fail to execute.
  // The File#canExecute() method honors this behavior, probaby via parsing the noexec flag when initializing
  // the UnixFileStore, though the flag is not exposed via a public API.  To find out if library is being
  // loaded off a volume with noexec, confirm or add executalbe permissions, then check File#canExecute().
  // Note: We use FQCN to not break when netty is used in java6
  Set<java.nio.file.attribute.PosixFilePermission> existingFilePermissions =
      java.nio.file.Files.getPosixFilePermissions(file.toPath());
  Set<java.nio.file.attribute.PosixFilePermission> executePermissions =
      EnumSet.of(java.nio.file.attribute.PosixFilePermission.OWNER_EXECUTE,
          java.nio.file.attribute.PosixFilePermission.GROUP_EXECUTE,
          java.nio.file.attribute.PosixFilePermission.OTHERS_EXECUTE);
  if (existingFilePermissions.containsAll(executePermissions)) {
    return false;
  }
  Set<java.nio.file.attribute.PosixFilePermission> newPermissions = EnumSet.copyOf(existingFilePermissions);
  newPermissions.addAll(executePermissions);
  java.nio.file.Files.setPosixFilePermissions(file.toPath(), newPermissions);
  return file.canExecute();
}

代码示例来源：origin: org.springframework.boot/spring-boot

private boolean canWritePosixFile(File file) throws IOException {
  try {
    Set<PosixFilePermission> permissions = Files
        .getPosixFilePermissions(file.toPath());
    for (PosixFilePermission permission : WRITE_PERMISSIONS) {
      if (permissions.contains(permission)) {
        return true;
      }
    }
    return false;
  }
  catch (UnsupportedOperationException ex) {
    // Assume that we can
    return true;
  }
}

代码示例来源：origin: org.apache.ant/ant

@Override
  public boolean isSelected(File basedir, String filename, File file) {
    if (permissions == null) {
      throw new BuildException("the permissions attribute is required");
    }
    try {
      return PosixFilePermissions.toString(followSymlinks
          ? Files.getPosixFilePermissions(file.toPath())
          : Files.getPosixFilePermissions(file.toPath(), LinkOption.NOFOLLOW_LINKS))
          .equals(permissions);
    } catch (IOException e) {
      // => not the expected permissions
    }
    return false;
  }
}

代码示例来源：origin: embulk/embulk

private void setExecutableIfAvailable(final String targetFileName) throws IOException {
  final Path targetPath = this.pluginBasePath.resolve(targetFileName);
  final FileSystem fileSystem = targetPath.getFileSystem();
  if (fileSystem.supportedFileAttributeViews().contains("posix")) {
    // NTFS does not support PosixFilePermissions, for example.
    final Set<PosixFilePermission> permissions =
        new HashSet<PosixFilePermission>(Files.getPosixFilePermissions(targetPath));
    permissions.add(PosixFilePermission.OWNER_EXECUTE);
    permissions.add(PosixFilePermission.GROUP_EXECUTE);
    permissions.add(PosixFilePermission.OTHERS_EXECUTE);
    Files.setPosixFilePermissions(targetPath, permissions);
  }
}

代码示例来源：origin: redisson/redisson

private static boolean canExecuteExecutable(File file) throws IOException {
  if (PlatformDependent.javaVersion() < 7) {
    // Pre-JDK7, the Java API did not directly support POSIX permissions; instead of implementing a custom
    // work-around, assume true, which disables the check.
    return true;
  }
  // If we can already execute, there is nothing to do.
  if (file.canExecute()) {
    return true;
  }
  // On volumes, with noexec set, even files with the executable POSIX permissions will fail to execute.
  // The File#canExecute() method honors this behavior, probaby via parsing the noexec flag when initializing
  // the UnixFileStore, though the flag is not exposed via a public API.  To find out if library is being
  // loaded off a volume with noexec, confirm or add executalbe permissions, then check File#canExecute().
  // Note: We use FQCN to not break when netty is used in java6
  Set<java.nio.file.attribute.PosixFilePermission> existingFilePermissions =
      java.nio.file.Files.getPosixFilePermissions(file.toPath());
  Set<java.nio.file.attribute.PosixFilePermission> executePermissions =
      EnumSet.of(java.nio.file.attribute.PosixFilePermission.OWNER_EXECUTE,
          java.nio.file.attribute.PosixFilePermission.GROUP_EXECUTE,
          java.nio.file.attribute.PosixFilePermission.OTHERS_EXECUTE);
  if (existingFilePermissions.containsAll(executePermissions)) {
    return false;
  }
  Set<java.nio.file.attribute.PosixFilePermission> newPermissions = EnumSet.copyOf(existingFilePermissions);
  newPermissions.addAll(executePermissions);
  java.nio.file.Files.setPosixFilePermissions(file.toPath(), newPermissions);
  return file.canExecute();
}

代码示例来源：origin: embulk/embulk

private void setExecutableIfAvailable(final String targetFileName) throws IOException {
  final Path targetPath = this.basePath.resolve(targetFileName);
  final FileSystem fileSystem = targetPath.getFileSystem();
  if (fileSystem.supportedFileAttributeViews().contains("posix")) {
    // NTFS does not support PosixFilePermissions, for example.
    final Set<PosixFilePermission> permissions =
        new HashSet<PosixFilePermission>(Files.getPosixFilePermissions(targetPath));
    permissions.add(PosixFilePermission.OWNER_EXECUTE);
    permissions.add(PosixFilePermission.GROUP_EXECUTE);
    permissions.add(PosixFilePermission.OTHERS_EXECUTE);
    Files.setPosixFilePermissions(targetPath, permissions);
  }
}

代码示例来源：origin: neo4j/neo4j

public static Closeable withPermissions( Path file, Set<PosixFilePermission> permissions ) throws IOException
  {
    Set<PosixFilePermission> originalPermissions = Files.getPosixFilePermissions( file );
    Files.setPosixFilePermissions( file, permissions );
    return () -> Files.setPosixFilePermissions( file, originalPermissions );
  }
}

代码示例来源：origin: floragunncom/search-guard

perms = Files.getPosixFilePermissions(p, LinkOption.NOFOLLOW_LINKS);
} catch (Exception e) {
  if(log.isDebugEnabled()) {

代码示例来源：origin: wildfly/wildfly

private static boolean canExecuteExecutable(File file) throws IOException {
  if (PlatformDependent.javaVersion() < 7) {
    // Pre-JDK7, the Java API did not directly support POSIX permissions; instead of implementing a custom
    // work-around, assume true, which disables the check.
    return true;
  }
  // If we can already execute, there is nothing to do.
  if (file.canExecute()) {
    return true;
  }
  // On volumes, with noexec set, even files with the executable POSIX permissions will fail to execute.
  // The File#canExecute() method honors this behavior, probaby via parsing the noexec flag when initializing
  // the UnixFileStore, though the flag is not exposed via a public API.  To find out if library is being
  // loaded off a volume with noexec, confirm or add executalbe permissions, then check File#canExecute().
  // Note: We use FQCN to not break when netty is used in java6
  Set<java.nio.file.attribute.PosixFilePermission> existingFilePermissions =
      java.nio.file.Files.getPosixFilePermissions(file.toPath());
  Set<java.nio.file.attribute.PosixFilePermission> executePermissions =
      EnumSet.of(java.nio.file.attribute.PosixFilePermission.OWNER_EXECUTE,
          java.nio.file.attribute.PosixFilePermission.GROUP_EXECUTE,
          java.nio.file.attribute.PosixFilePermission.OTHERS_EXECUTE);
  if (existingFilePermissions.containsAll(executePermissions)) {
    return false;
  }
  Set<java.nio.file.attribute.PosixFilePermission> newPermissions = EnumSet.copyOf(existingFilePermissions);
  newPermissions.addAll(executePermissions);
  java.nio.file.Files.setPosixFilePermissions(file.toPath(), newPermissions);
  return file.canExecute();
}

代码示例来源：origin: eclipse-vertx/vert.x

private String getPerms(String fileName) {
 try {
  Set<PosixFilePermission> perms = Files.getPosixFilePermissions(Paths.get(testDir + pathSep + fileName));
  return PosixFilePermissions.toString(perms);
 } catch (Exception e) {
  throw new RuntimeException(e.getMessage());
 }
}

代码示例来源：origin: org.apache.hadoop/hadoop-common

@Override
protected void stashOriginalFilePermissions() throws IOException {
 // save off permissions in case we need to
 // rewrite the keystore in flush()
 if (!Shell.WINDOWS) {
  Path path = Paths.get(file.getCanonicalPath());
  permissions = Files.getPosixFilePermissions(path);
 } else {
  // On Windows, the JDK does not support the POSIX file permission APIs.
  // Instead, we can do a winutils call and translate.
  String[] cmd = Shell.getGetPermissionCommand();
  String[] args = new String[cmd.length + 1];
  System.arraycopy(cmd, 0, args, 0, cmd.length);
  args[cmd.length] = file.getCanonicalPath();
  String out = Shell.execCommand(args);
  StringTokenizer t = new StringTokenizer(out, Shell.TOKEN_SEPARATOR_REGEX);
  // The winutils output consists of 10 characters because of the leading
  // directory indicator, i.e. "drwx------".  The JDK parsing method expects
  // a 9-character string, so remove the leading character.
  String permString = t.nextToken().substring(1);
  permissions = PosixFilePermissions.fromString(permString);
 }
}

代码示例来源：origin: jenkinsci/jenkins

/**
 * Gets the mode of a file/directory, if appropriate. Only includes read, write, and
 * execute permissions for the owner, group, and others, i.e. the max return value
 * is 0777. Consider using {@link Files#getPosixFilePermissions} instead if you only
 * care about access permissions.
 * <p>If the file is symlink, the mode is that of the link target, not the link itself.
 * @return a file mode, or -1 if not on Unix
 * @throws PosixException if the file could not be statted, e.g. broken symlink
 */
public static int mode(File f) throws PosixException {
  if(Functions.isWindows())   return -1;
  try {
    if (Util.NATIVE_CHMOD_MODE) {
      return PosixAPI.jnr().stat(f.getPath()).mode();
    } else {
      return Util.permissionsToMode(Files.getPosixFilePermissions(fileToPath(f)));
    }
  } catch (IOException cause) {
    PosixException e = new PosixException("Unable to get file permissions", null);
    e.initCause(cause);
    throw e;
  }
}

代码示例来源：origin: org.apache.logging.log4j/log4j-core

@Test
public void testFilePermissions() throws Exception {
  final Logger logger = loggerContextRule.getLogger(FileAppenderPermissionsTest.class);
  for (int i = 0; i < 1000; ++i) {
    final String message = "This is test message number " + i;
    logger.debug(message);
  }
  assertEquals("rw-------", PosixFilePermissions.toString(
        Files.getPosixFilePermissions(Paths.get("target/permissions1/AppenderTest-1.log"))));
}

代码示例来源：origin: Alluxio/alluxio

/**
 * Tests {@link FileUtils#createBlockPath} method when storage dir exists or doesn't exist.
 */
@Test
public void createStorageDirPath() throws IOException {
 File storageDir = new File(mTestFolder.getRoot(), "storageDir");
 File blockFile = new File(storageDir, "200");
 // When storage dir doesn't exist
 FileUtils.createBlockPath(blockFile.getAbsolutePath(), mWorkerDataFolderPerms);
 assertTrue(FileUtils.exists(storageDir.getAbsolutePath()));
 assertEquals(
   PosixFilePermissions.fromString("rwxrwxrwx"),
   Files.getPosixFilePermissions(Paths.get(storageDir.getAbsolutePath())));
 // When storage dir exists
 FileUtils.createBlockPath(blockFile.getAbsolutePath(), mWorkerDataFolderPerms);
 assertTrue(FileUtils.exists(storageDir.getAbsolutePath()));
}

代码示例来源：origin: eclipse-vertx/vert.x

@Test
 public void testCreateTempFileWithPermsBlocking() throws Exception {
  Assume.assumeFalse(Utils.isWindows());

  FileSystem fs = vertx.fileSystem();
  String tempFile = fs.createTempFileBlocking("project", ".tmp", DEFAULT_FILE_PERMS);
  Path path = Paths.get(tempFile);
  assertTrue(Files.exists(path));
  String perms = PosixFilePermissions.toString(Files.getPosixFilePermissions(path));
  assertEquals(perms, DEFAULT_FILE_PERMS);
 }
}

代码示例来源：origin: eclipse-vertx/vert.x

@Test
public void testCreateTempDirectoryWithPermsBlocking() throws Exception {
 Assume.assumeFalse(Utils.isWindows());
 FileSystem fs = vertx.fileSystem();
 String tempDirectory = fs.createTempDirectoryBlocking("project", DEFAULT_DIR_PERMS);
 String perms = PosixFilePermissions.toString(Files.getPosixFilePermissions(Paths.get(tempDirectory)));
 assertEquals(perms, DEFAULT_DIR_PERMS);
}

代码示例来源：origin: org.apache.logging.log4j/log4j-core

gzippedFiles1++;
  assertEquals("rw-------",
      PosixFilePermissions.toString(Files.getPosixFilePermissions(file.toPath())));
} else {
  gzippedFiles2++;
  assertEquals("r--r--r--",
      PosixFilePermissions.toString(Files.getPosixFilePermissions(file.toPath())));
      PosixFilePermissions.toString(Files.getPosixFilePermissions(file.toPath())));
} else {
  assertEquals("rwx------",
      PosixFilePermissions.toString(Files.getPosixFilePermissions(file.toPath())));

代码示例来源：origin: eclipse-vertx/vert.x

@Test
public void testCreateTempFileWithPerms() {
 Assume.assumeFalse(Utils.isWindows());
 FileSystem fs = vertx.fileSystem();
 fs.createTempFile("project", ".tmp", DEFAULT_FILE_PERMS, onSuccess(tempFile -> {
  Path path = Paths.get(tempFile);
  assertTrue(Files.exists(path));
  try {
   String perms = PosixFilePermissions.toString(Files.getPosixFilePermissions(path));
   assertEquals(perms, DEFAULT_FILE_PERMS);
  } catch (IOException e) {
   fail(e);
  }
 }));
}

代码示例来源：origin: eclipse-vertx/vert.x

vertx.<Set<PosixFilePermission>>executeBlocking(fut -> {
 try {
  fut.complete(Files.getPosixFilePermissions(new File(testDir, target).toPath(), LinkOption.NOFOLLOW_LINKS));
 } catch (IOException e) {
  fut.fail(e);

代码示例来源：origin: eclipse-vertx/vert.x

@Test
public void testCreateTempDirectoryWithPerms() {
 Assume.assumeFalse(Utils.isWindows());
 FileSystem fs = vertx.fileSystem();
 fs.createTempDirectory("project", DEFAULT_DIR_PERMS, onSuccess(tempDirectory -> {
  try {
   String perms = PosixFilePermissions.toString(Files.getPosixFilePermissions(Paths.get(tempDirectory)));
   assertEquals(perms, DEFAULT_DIR_PERMS);
  } catch (IOException e) {
   fail(e);
  }
  complete();
 }));
 await();
}

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