Java FsPermission.getUMask方法代碼示例

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
private FileContext(final AbstractFileSystem defFs,
  final FsPermission theUmask, final Configuration aConf) {
  defaultFS = defFs;
  umask = FsPermission.getUMask(aConf);
  conf = aConf;
  tracer = FsTracer.get(aConf);
  try {
    ugi = UserGroupInformation.getCurrentUser();
  } catch (IOException e) {
    LOG.error("Exception in getCurrentUser: ",e);
    throw new RuntimeException("Failed to get the current user " +
    		"while creating a FileContext", e);
  }
  /*
   * Init the wd.
   * WorkingDir is implemented at the FileContext layer 
   * NOT at the AbstractFileSystem layer. 
   * If the DefaultFS, such as localFilesystem has a notion of
   *  builtin WD, we use that as the initial WD.
   *  Otherwise the WD is initialized to the home directory.
   */
  workingDir = defaultFS.getInitialWorkingDirectory();
  if (workingDir == null) {
    workingDir = defaultFS.getHomeDirectory();
  }
  resolveSymlinks = conf.getBoolean(
      CommonConfigurationKeys.FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_KEY,
      CommonConfigurationKeys.FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_DEFAULT);
  util = new Util(); // for the inner class
}
 

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
private void createDir(FileSystem fs, Path path, FsPermission fsPerm)
    throws IOException {
  FsPermission dirPerm = new FsPermission(fsPerm);
  fs.mkdirs(path, dirPerm);
  FsPermission umask = FsPermission.getUMask(fs.getConf());
  if (!dirPerm.equals(dirPerm.applyUMask(umask))) {
    fs.setPermission(path, new FsPermission(fsPerm));
  }
}
 

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
private FileContext(final AbstractFileSystem defFs,
  final FsPermission theUmask, final Configuration aConf) {
  defaultFS = defFs;
  umask = FsPermission.getUMask(aConf);
  conf = aConf;
  try {
    ugi = UserGroupInformation.getCurrentUser();
  } catch (IOException e) {
    LOG.error("Exception in getCurrentUser: ",e);
    throw new RuntimeException("Failed to get the current user " +
    		"while creating a FileContext", e);
  }
  /*
   * Init the wd.
   * WorkingDir is implemented at the FileContext layer 
   * NOT at the AbstractFileSystem layer. 
   * If the DefaultFS, such as localFilesystem has a notion of
   *  builtin WD, we use that as the initial WD.
   *  Otherwise the WD is initialized to the home directory.
   */
  workingDir = defaultFS.getInitialWorkingDirectory();
  if (workingDir == null) {
    workingDir = defaultFS.getHomeDirectory();
  }
  resolveSymlinks = conf.getBoolean(
      CommonConfigurationKeys.FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_KEY,
      CommonConfigurationKeys.FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_DEFAULT);
  util = new Util(); // for the inner class
}
 

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
@Override
public void initialize(URI uri, Configuration conf) throws IOException {
  super.initialize(uri, conf);
  setConf(conf);
  umask = FsPermission.getUMask(conf);
}
 

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
@Override
public FSDataOutputStream create(Path f, EnumSet<CreateFlag> createFlag,
    CreateOpts... opts) throws AccessControlException,
    FileAlreadyExistsException, FileNotFoundException,
    ParentNotDirectoryException, UnsupportedFileSystemException, IOException {

  // Need to translate the FileContext-style options into FileSystem-style

  // Permissions with umask
  CreateOpts.Perms permOpt = CreateOpts.getOpt(
      CreateOpts.Perms.class, opts);
  FsPermission umask = FsPermission.getUMask(fs.getConf());
  FsPermission permission = (permOpt != null) ? permOpt.getValue()
      : FsPermission.getFileDefault().applyUMask(umask);
  permission = permission.applyUMask(umask);
  // Overwrite
  boolean overwrite = createFlag.contains(CreateFlag.OVERWRITE);
  // bufferSize
  int bufferSize = fs.getConf().getInt(
      CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY,
      CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT);
  CreateOpts.BufferSize bufOpt = CreateOpts.getOpt(
      CreateOpts.BufferSize.class, opts);
  bufferSize = (bufOpt != null) ? bufOpt.getValue() : bufferSize;
  // replication
  short replication = fs.getDefaultReplication(f);
  CreateOpts.ReplicationFactor repOpt =
      CreateOpts.getOpt(CreateOpts.ReplicationFactor.class, opts);
  replication = (repOpt != null) ? repOpt.getValue() : replication;
  // blockSize
  long blockSize = fs.getDefaultBlockSize(f);
  CreateOpts.BlockSize blockOpt = CreateOpts.getOpt(
      CreateOpts.BlockSize.class, opts);
  blockSize = (blockOpt != null) ? blockOpt.getValue() : blockSize;
  // Progressable
  Progressable progress = null;
  CreateOpts.Progress progressOpt = CreateOpts.getOpt(
      CreateOpts.Progress.class, opts);
  progress = (progressOpt != null) ? progressOpt.getValue() : progress;
  return fs.create(f, permission, overwrite, bufferSize, replication,
      blockSize, progress);
}
 

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
/**
 * Create a FileContext with specified FS as default using the specified
 * config.
 * 
 * @param defFS
 * @param aConf
 * @return new FileContext with specified FS as default.
 */
public static FileContext getFileContext(final AbstractFileSystem defFS,
                  final Configuration aConf) {
  return new FileContext(defFS, FsPermission.getUMask(aConf), aConf);
}
 

import org.apache.hadoop.fs.permission.FsPermission; //導入方法依賴的package包/類
/**
 * Create a FileContext with specified FS as default using the specified
 * config.
 * 
 * @param defFS
 * @param aConf
 * @return new FileContext with specifed FS as default.
 */
public static FileContext getFileContext(final AbstractFileSystem defFS,
                  final Configuration aConf) {
  return new FileContext(defFS, FsPermission.getUMask(aConf), aConf);
}