java.nio.file.FileStore#supportsFileAttributeView ( )源码实例Demo

下面列出了java.nio.file.FileStore#supportsFileAttributeView ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： bazel 文件： ScopedTemporaryDirectory.java

private void makeWritable(Path file) throws IOException {
  FileStore fileStore = Files.getFileStore(file);
  if (IS_WINDOWS && fileStore.supportsFileAttributeView(DosFileAttributeView.class)) {
    DosFileAttributeView dosAttribs =
        Files.getFileAttributeView(file, DosFileAttributeView.class);
    if (dosAttribs != null) {
      dosAttribs.setReadOnly(false);
    }
  } else if (fileStore.supportsFileAttributeView(PosixFileAttributeView.class)) {
    PosixFileAttributeView posixAttribs =
        Files.getFileAttributeView(file, PosixFileAttributeView.class);
    if (posixAttribs != null) {
      posixAttribs.setPermissions(EnumSet.of(OWNER_READ, OWNER_WRITE, OWNER_EXECUTE));
    }
  }
}

源代码2 项目： bazel-buildfarm 文件： IOUtils.java

public static List<NamedFileKey> listDirentSorted(Path path, FileStore fileStore)
    throws IOException {
  final List<NamedFileKey> dirents;
  if (fileStore.supportsFileAttributeView("posix")) {
    dirents = ffiReaddir(libc.get(), runtime(), path);
  } else {
    dirents = listNIOdirentSorted(path);
  }
  dirents.sort(Comparator.comparing(NamedFileKey::getName));
  return dirents;
}

源代码3 项目： bazel-buildfarm 文件： EvenMoreFiles.java

public static void setReadOnlyPerms(Path path, boolean executable) throws IOException {
  FileStore fileStore = Files.getFileStore(path);
  if (fileStore.supportsFileAttributeView("posix")) {
    if (executable) {
      Files.setPosixFilePermissions(path, readOnlyExecPerms);
    } else {
      Files.setPosixFilePermissions(path, readOnlyPerms);
    }
  } else if (fileStore.supportsFileAttributeView("acl")) {
    // windows, we hope
    UserPrincipal authenticatedUsers =
        path.getFileSystem()
            .getUserPrincipalLookupService()
            .lookupPrincipalByName("Authenticated Users");
    AclEntry denyWriteEntry =
        AclEntry.newBuilder()
            .setType(AclEntryType.DENY)
            .setPrincipal(authenticatedUsers)
            .setPermissions(AclEntryPermission.APPEND_DATA, AclEntryPermission.WRITE_DATA)
            .build();
    AclEntry execEntry =
        AclEntry.newBuilder()
            .setType(executable ? AclEntryType.ALLOW : AclEntryType.DENY)
            .setPrincipal(authenticatedUsers)
            .setPermissions(AclEntryPermission.EXECUTE)
            .build();

    AclFileAttributeView view = Files.getFileAttributeView(path, AclFileAttributeView.class);
    List<AclEntry> acl = view.getAcl();
    acl.add(0, execEntry);
    acl.add(0, denyWriteEntry);
    view.setAcl(acl);
  } else {
    throw new UnsupportedOperationException("no recognized attribute view");
  }
}

源代码4 项目： bazel-buildfarm 文件： EvenMoreFiles.java

public static boolean isReadOnlyExecutable(Path path) throws IOException {
  FileStore fileStore = Files.getFileStore(path);
  if (fileStore.supportsFileAttributeView("posix")) {
    Set<PosixFilePermission> perms = Files.getPosixFilePermissions(path);
    if (perms.contains(PosixFilePermission.OWNER_EXECUTE)
        && !perms.contains(PosixFilePermission.GROUP_EXECUTE)
        && !perms.contains(PosixFilePermission.OTHERS_EXECUTE)) {
      setReadOnlyPerms(path, true);
    }
    return perms.contains(PosixFilePermission.OWNER_EXECUTE);
  } else {
    return Files.isExecutable(path);
  }
}

源代码5 项目： bazel-buildfarm 文件： Directories.java

private static void makeWritable(Path dir, boolean writable) throws IOException {
  FileStore fileStore = Files.getFileStore(dir);
  if (fileStore.supportsFileAttributeView("posix")) {
    if (writable) {
      Files.setPosixFilePermissions(dir, writablePerms);
    } else {
      Files.setPosixFilePermissions(dir, nonWritablePerms);
    }
  } else if (fileStore.supportsFileAttributeView("acl")) {
    // windows, we hope
    UserPrincipal authenticatedUsers =
        dir.getFileSystem()
            .getUserPrincipalLookupService()
            .lookupPrincipalByName("Authenticated Users");
    AclEntry entry =
        AclEntry.newBuilder()
            .setType(writable ? AclEntryType.ALLOW : AclEntryType.DENY)
            .setPrincipal(authenticatedUsers)
            .setPermissions(
                AclEntryPermission.DELETE,
                AclEntryPermission.DELETE_CHILD,
                AclEntryPermission.ADD_FILE,
                AclEntryPermission.ADD_SUBDIRECTORY)
            .build();

    AclFileAttributeView view = Files.getFileAttributeView(dir, AclFileAttributeView.class);
    List<AclEntry> acl = view.getAcl();
    acl.add(0, entry);
    view.setAcl(acl);
  } else {
    throw new UnsupportedOperationException("no recognized attribute view");
  }
}

源代码6 项目： wildfly-core 文件： FilePersistenceUtils.java

private static boolean supportsFileOwnerAttributeView(Path path, Class<? extends FileOwnerAttributeView> view) {
    FileStore store;
    try {
        store = Files.getFileStore(path);
    } catch (IOException e) {
        return false;
    }
    return store.supportsFileAttributeView(view);
}

源代码7 项目： localization_nifi 文件： TestListFile.java

@Test
public void testAttributesSet() throws Exception {
    // create temp file and time constant
    final File file1 = new File(TESTDIR + "/file1.txt");
    assertTrue(file1.createNewFile());
    FileOutputStream fos = new FileOutputStream(file1);
    fos.write(new byte[1234]);
    fos.close();
    assertTrue(file1.setLastModified(time3millis));
    Long time3rounded = time3millis - time3millis % 1000;
    String userName = System.getProperty("user.name");

    // validate the file transferred
    runner.setProperty(ListFile.DIRECTORY, testDir.getAbsolutePath());
    runNext();
    runner.assertAllFlowFilesTransferred(ListFile.REL_SUCCESS);
    final List<MockFlowFile> successFiles1 = runner.getFlowFilesForRelationship(ListFile.REL_SUCCESS);
    assertEquals(1, successFiles1.size());

    // get attribute check values
    final Path file1Path = file1.toPath();
    final Path directoryPath = new File(TESTDIR).toPath();
    final Path relativePath = directoryPath.relativize(file1.toPath().getParent());
    String relativePathString = relativePath.toString();
    relativePathString = relativePathString.isEmpty() ? "." + File.separator : relativePathString + File.separator;
    final Path absolutePath = file1.toPath().toAbsolutePath();
    final String absolutePathString = absolutePath.getParent().toString() + File.separator;
    final FileStore store = Files.getFileStore(file1Path);
    final DateFormat formatter = new SimpleDateFormat(ListFile.FILE_MODIFY_DATE_ATTR_FORMAT, Locale.US);
    final String time3Formatted = formatter.format(time3rounded);

    // check standard attributes
    MockFlowFile mock1 = successFiles1.get(0);
    assertEquals(relativePathString, mock1.getAttribute(CoreAttributes.PATH.key()));
    assertEquals("file1.txt", mock1.getAttribute(CoreAttributes.FILENAME.key()));
    assertEquals(absolutePathString, mock1.getAttribute(CoreAttributes.ABSOLUTE_PATH.key()));
    assertEquals("1234", mock1.getAttribute(ListFile.FILE_SIZE_ATTRIBUTE));

    // check attributes dependent on views supported
    if (store.supportsFileAttributeView("basic")) {
        assertEquals(time3Formatted, mock1.getAttribute(ListFile.FILE_LAST_MODIFY_TIME_ATTRIBUTE));
        assertNotNull(mock1.getAttribute(ListFile.FILE_CREATION_TIME_ATTRIBUTE));
        assertNotNull(mock1.getAttribute(ListFile.FILE_LAST_ACCESS_TIME_ATTRIBUTE));
    }
    if (store.supportsFileAttributeView("owner")) {
        // look for username containment to handle Windows domains as well as Unix user names
        // org.junit.ComparisonFailure: expected:<[]username> but was:<[DOMAIN\]username>
        assertTrue(mock1.getAttribute(ListFile.FILE_OWNER_ATTRIBUTE).contains(userName));
    }
    if (store.supportsFileAttributeView("posix")) {
        assertNotNull("Group name should be set", mock1.getAttribute(ListFile.FILE_GROUP_ATTRIBUTE));
        assertNotNull("File permissions should be set", mock1.getAttribute(ListFile.FILE_PERMISSIONS_ATTRIBUTE));
    }
}

源代码8 项目： nifi 文件： TestListFile.java

@Test
public void testAttributesSet() throws Exception {
    // create temp file and time constant
    final File file1 = new File(TESTDIR + "/file1.txt");
    assertTrue(file1.createNewFile());
    FileOutputStream fos = new FileOutputStream(file1);
    fos.write(new byte[1234]);
    fos.close();
    assertTrue(file1.setLastModified(time3millis));
    Long time3rounded = time3millis - time3millis % 1000;
    String userName = System.getProperty("user.name");

    // validate the file transferred
    runner.setProperty(ListFile.DIRECTORY, testDir.getAbsolutePath());
    runNext();
    runner.assertAllFlowFilesTransferred(ListFile.REL_SUCCESS);
    final List<MockFlowFile> successFiles1 = runner.getFlowFilesForRelationship(ListFile.REL_SUCCESS);
    assertEquals(1, successFiles1.size());

    // get attribute check values
    final Path file1Path = file1.toPath();
    final Path directoryPath = new File(TESTDIR).toPath();
    final Path relativePath = directoryPath.relativize(file1.toPath().getParent());
    String relativePathString = relativePath.toString();
    relativePathString = relativePathString.isEmpty() ? "." + File.separator : relativePathString + File.separator;
    final Path absolutePath = file1.toPath().toAbsolutePath();
    final String absolutePathString = absolutePath.getParent().toString() + File.separator;
    final FileStore store = Files.getFileStore(file1Path);
    final DateFormat formatter = new SimpleDateFormat(ListFile.FILE_MODIFY_DATE_ATTR_FORMAT, Locale.US);
    final String time3Formatted = formatter.format(time3rounded);

    // check standard attributes
    MockFlowFile mock1 = successFiles1.get(0);
    assertEquals(relativePathString, mock1.getAttribute(CoreAttributes.PATH.key()));
    assertEquals("file1.txt", mock1.getAttribute(CoreAttributes.FILENAME.key()));
    assertEquals(absolutePathString, mock1.getAttribute(CoreAttributes.ABSOLUTE_PATH.key()));
    assertEquals("1234", mock1.getAttribute(ListFile.FILE_SIZE_ATTRIBUTE));

    // check attributes dependent on views supported
    if (store.supportsFileAttributeView("basic")) {
        assertEquals(time3Formatted, mock1.getAttribute(ListFile.FILE_LAST_MODIFY_TIME_ATTRIBUTE));
        assertNotNull(mock1.getAttribute(ListFile.FILE_CREATION_TIME_ATTRIBUTE));
        assertNotNull(mock1.getAttribute(ListFile.FILE_LAST_ACCESS_TIME_ATTRIBUTE));
    }
    if (store.supportsFileAttributeView("owner")) {
        // look for username containment to handle Windows domains as well as Unix user names
        // org.junit.ComparisonFailure: expected:<[]username> but was:<[DOMAIN\]username>
        assertTrue(mock1.getAttribute(ListFile.FILE_OWNER_ATTRIBUTE).contains(userName));
    }
    if (store.supportsFileAttributeView("posix")) {
        assertNotNull("Group name should be set", mock1.getAttribute(ListFile.FILE_GROUP_ATTRIBUTE));
        assertNotNull("File permissions should be set", mock1.getAttribute(ListFile.FILE_PERMISSIONS_ATTRIBUTE));
    }
}

源代码9 项目： yfs 文件： UserExtendedAttributes.java

/**
 * @return if the passed {@link FileStore} has support for user extended
 * attributes
 */
private static boolean hasUserXattrSupport(FileStore fileStore) {
    return fileStore.supportsFileAttributeView(UserDefinedFileAttributeView.class);
}

方法所在类

java.nio.file.FileStore