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  3. org.apache.hadoop.fs.permission.PermissionStatus

Java 类org.apache.hadoop.fs.permission.PermissionStatus 实例源码

项目：hadoop    文件：FSNamesystem.java    
/**
 * Create a symbolic link.
 */
@SuppressWarnings("deprecation")
void createSymlink(String target, String link,
    PermissionStatus dirPerms, boolean createParent, boolean logRetryCache)
    throws IOException {
  if (!FileSystem.areSymlinksEnabled()) {
    throw new UnsupportedOperationException("Symlinks not supported");
  }
  HdfsFileStatus auditStat = null;
  checkOperation(OperationCategory.WRITE);
  writeLock();
  try {
    checkOperation(OperationCategory.WRITE);
    checkNameNodeSafeMode("Cannot create symlink " + link);
    auditStat = FSDirSymlinkOp.createSymlinkInt(this, target, link, dirPerms,
                                                createParent, logRetryCache);
  } catch (AccessControlException e) {
    logAuditEvent(false, "createSymlink", link, target, null);
    throw e;
  } finally {
    writeUnlock();
  }
  getEditLog().logSync();
  logAuditEvent(true, "createSymlink", link, target, auditStat);
}
项目：hadoop    文件：FSNamesystem.java    
/**
 * Create a new file entry in the namespace.
 * 
 * For description of parameters and exceptions thrown see
 * {@link ClientProtocol#create}, except it returns valid file status upon
 * success
 */
HdfsFileStatus startFile(String src, PermissionStatus permissions,
    String holder, String clientMachine, EnumSet<CreateFlag> flag,
    boolean createParent, short replication, long blockSize, 
    CryptoProtocolVersion[] supportedVersions, boolean logRetryCache)
    throws AccessControlException, SafeModeException,
    FileAlreadyExistsException, UnresolvedLinkException,
    FileNotFoundException, ParentNotDirectoryException, IOException {

  HdfsFileStatus status = null;
  try {
    status = startFileInt(src, permissions, holder, clientMachine, flag,
        createParent, replication, blockSize, supportedVersions,
        logRetryCache);
  } catch (AccessControlException e) {
    logAuditEvent(false, "create", src);
    throw e;
  }
  return status;
}
项目：hadoop    文件：FSNamesystem.java    
/**
 * Create all the necessary directories
 */
boolean mkdirs(String src, PermissionStatus permissions,
    boolean createParent) throws IOException {
  HdfsFileStatus auditStat = null;
  checkOperation(OperationCategory.WRITE);
  writeLock();
  try {
    checkOperation(OperationCategory.WRITE);
    checkNameNodeSafeMode("Cannot create directory " + src);
    auditStat = FSDirMkdirOp.mkdirs(this, src, permissions, createParent);
  } catch (AccessControlException e) {
    logAuditEvent(false, "mkdirs", src);
    throw e;
  } finally {
    writeUnlock();
  }
  getEditLog().logSync();
  logAuditEvent(true, "mkdirs", src, null, auditStat);
  return true;
}
项目：hadoop    文件：FSDirMkdirOp.java    
/**
 * For a given absolute path, create all ancestors as directories along the
 * path. All ancestors inherit their parent's permission plus an implicit
 * u+wx permission. This is used by create() and addSymlink() for
 * implicitly creating all directories along the path.
 *
 * For example, path="/foo/bar/spam", "/foo" is an existing directory,
 * "/foo/bar" is not existing yet, the function will create directory bar.
 *
 * @return a tuple which contains both the new INodesInPath (with all the
 * existing and newly created directories) and the last component in the
 * relative path. Or return null if there are errors.
 */
static Map.Entry<INodesInPath, String> createAncestorDirectories(
    FSDirectory fsd, INodesInPath iip, PermissionStatus permission)
    throws IOException {
  final String last = new String(iip.getLastLocalName(), Charsets.UTF_8);
  INodesInPath existing = iip.getExistingINodes();
  List<String> children = iip.getPath(existing.length(),
      iip.length() - existing.length());
  int size = children.size();
  if (size > 1) { // otherwise all ancestors have been created
    List<String> directories = children.subList(0, size - 1);
    INode parentINode = existing.getLastINode();
    // Ensure that the user can traversal the path by adding implicit
    // u+wx permission to all ancestor directories
    existing = createChildrenDirectories(fsd, existing, directories,
        addImplicitUwx(parentINode.getPermissionStatus(), permission));
    if (existing == null) {
      return null;
    }
  }
  return new AbstractMap.SimpleImmutableEntry<>(existing, last);
}
项目：hadoop    文件：FSDirMkdirOp.java    
private static INodesInPath createSingleDirectory(FSDirectory fsd,
    INodesInPath existing, String localName, PermissionStatus perm)
    throws IOException {
  assert fsd.hasWriteLock();
  existing = unprotectedMkdir(fsd, fsd.allocateNewInodeId(), existing,
      localName.getBytes(Charsets.UTF_8), perm, null, now());
  if (existing == null) {
    return null;
  }

  final INode newNode = existing.getLastINode();
  // Directory creation also count towards FilesCreated
  // to match count of FilesDeleted metric.
  NameNode.getNameNodeMetrics().incrFilesCreated();

  String cur = existing.getPath();
  fsd.getEditLog().logMkDir(cur, newNode);
  if (NameNode.stateChangeLog.isDebugEnabled()) {
    NameNode.stateChangeLog.debug("mkdirs: created directory " + cur);
  }
  return existing;
}
项目：hadoop    文件：FSDirMkdirOp.java    
/**
 * create a directory at path specified by parent
 */
private static INodesInPath unprotectedMkdir(FSDirectory fsd, long inodeId,
    INodesInPath parent, byte[] name, PermissionStatus permission,
    List<AclEntry> aclEntries, long timestamp)
    throws QuotaExceededException, AclException, FileAlreadyExistsException {
  assert fsd.hasWriteLock();
  assert parent.getLastINode() != null;
  if (!parent.getLastINode().isDirectory()) {
    throw new FileAlreadyExistsException("Parent path is not a directory: " +
        parent.getPath() + " " + DFSUtil.bytes2String(name));
  }
  final INodeDirectory dir = new INodeDirectory(inodeId, name, permission,
      timestamp);

  INodesInPath iip = fsd.addLastINode(parent, dir, true);
  if (iip != null && aclEntries != null) {
    AclStorage.updateINodeAcl(dir, aclEntries, Snapshot.CURRENT_STATE_ID);
  }
  return iip;
}
项目：hadoop    文件：FSImageFormat.java    
/** Load {@link INodeFileAttributes}. */
public INodeFileAttributes loadINodeFileAttributes(DataInput in)
    throws IOException {
  final int layoutVersion = getLayoutVersion();

  if (!NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.OPTIMIZE_SNAPSHOT_INODES, layoutVersion)) {
    return loadINodeWithLocalName(true, in, false).asFile();
  }

  final byte[] name = FSImageSerialization.readLocalName(in);
  final PermissionStatus permissions = PermissionStatus.read(in);
  final long modificationTime = in.readLong();
  final long accessTime = in.readLong();

  final short replication = namesystem.getBlockManager().adjustReplication(
      in.readShort());
  final long preferredBlockSize = in.readLong();

  return new INodeFileAttributes.SnapshotCopy(name, permissions, null, modificationTime,
      accessTime, replication, preferredBlockSize, (byte) 0, null);
}
项目：hadoop    文件：FSImageFormat.java    
public INodeDirectoryAttributes loadINodeDirectoryAttributes(DataInput in)
    throws IOException {
  final int layoutVersion = getLayoutVersion();

  if (!NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.OPTIMIZE_SNAPSHOT_INODES, layoutVersion)) {
    return loadINodeWithLocalName(true, in, false).asDirectory();
  }

  final byte[] name = FSImageSerialization.readLocalName(in);
  final PermissionStatus permissions = PermissionStatus.read(in);
  final long modificationTime = in.readLong();

  // Read quotas: quota by storage type does not need to be processed below.
  // It is handled only in protobuf based FsImagePBINode class for newer
  // fsImages. Tools using this class such as legacy-mode of offline image viewer
  // should only load legacy FSImages without newer features.
  final long nsQuota = in.readLong();
  final long dsQuota = in.readLong();

  return nsQuota == -1L && dsQuota == -1L ? new INodeDirectoryAttributes.SnapshotCopy(
      name, permissions, null, modificationTime, null)
    : new INodeDirectoryAttributes.CopyWithQuota(name, permissions,
        null, modificationTime, nsQuota, dsQuota, null, null);
}
项目：hadoop    文件：FSEditLog.java    
/** 
 * Add create directory record to edit log
 */
public void logMkDir(String path, INode newNode) {
  PermissionStatus permissions = newNode.getPermissionStatus();
  MkdirOp op = MkdirOp.getInstance(cache.get())
    .setInodeId(newNode.getId())
    .setPath(path)
    .setTimestamp(newNode.getModificationTime())
    .setPermissionStatus(permissions);

  AclFeature f = newNode.getAclFeature();
  if (f != null) {
    op.setAclEntries(AclStorage.readINodeLogicalAcl(newNode));
  }

  XAttrFeature x = newNode.getXAttrFeature();
  if (x != null) {
    op.setXAttrs(x.getXAttrs());
  }
  logEdit(op);
}
项目：hadoop    文件：FSImageLoader.java    
private PermissionStatus getPermissionStatus(String path) throws IOException {
  long id = lookup(path);
  FsImageProto.INodeSection.INode inode = fromINodeId(id);
  switch (inode.getType()) {
    case FILE: {
      FsImageProto.INodeSection.INodeFile f = inode.getFile();
      return FSImageFormatPBINode.Loader.loadPermission(
          f.getPermission(), stringTable);
    }
    case DIRECTORY: {
      FsImageProto.INodeSection.INodeDirectory d = inode.getDirectory();
      return FSImageFormatPBINode.Loader.loadPermission(
          d.getPermission(), stringTable);
    }
    case SYMLINK: {
      FsImageProto.INodeSection.INodeSymlink s = inode.getSymlink();
      return FSImageFormatPBINode.Loader.loadPermission(
          s.getPermission(), stringTable);
    }
    default: {
      return null;
    }
  }
}
项目：hadoop    文件：TestINodeFile.java    
/**
 * For a given path, build a tree of INodes and return the leaf node.
 */
private INode createTreeOfInodes(String path) throws QuotaExceededException {
  byte[][] components = INode.getPathComponents(path);
  FsPermission perm = FsPermission.createImmutable((short)0755);
  PermissionStatus permstatus = PermissionStatus.createImmutable("", "", perm);

  long id = 0;
  INodeDirectory prev = new INodeDirectory(++id, new byte[0], permstatus, 0);
  INodeDirectory dir = null;
  for (byte[] component : components) {
    if (component.length == 0) {
      continue;
    }
    System.out.println("Adding component " + DFSUtil.bytes2String(component));
    dir = new INodeDirectory(++id, component, permstatus, 0);
    prev.addChild(dir, false, Snapshot.CURRENT_STATE_ID);
    prev = dir;
  }
  return dir; // Last Inode in the chain
}
项目：hadoop    文件：TestGetBlockLocations.java    
private static FSNamesystem setupFileSystem() throws IOException {
  Configuration conf = new Configuration();
  conf.setLong(DFS_NAMENODE_ACCESSTIME_PRECISION_KEY, 1L);
  FSEditLog editlog = mock(FSEditLog.class);
  FSImage image = mock(FSImage.class);
  when(image.getEditLog()).thenReturn(editlog);
  final FSNamesystem fsn = new FSNamesystem(conf, image, true);

  final FSDirectory fsd = fsn.getFSDirectory();
  INodesInPath iip = fsd.getINodesInPath("/", true);
  PermissionStatus perm = new PermissionStatus(
      "hdfs", "supergroup",
      FsPermission.createImmutable((short) 0x1ff));
  final INodeFile file = new INodeFile(
      MOCK_INODE_ID, FILE_NAME.getBytes(Charsets.UTF_8),
      perm, 1, 1, new BlockInfoContiguous[] {}, (short) 1,
      DFS_BLOCK_SIZE_DEFAULT);
  fsn.getFSDirectory().addINode(iip, file);
  return fsn;
}
项目：hadoop    文件：TestDefaultBlockPlacementPolicy.java    
@Before
public void setup() throws IOException {
  StaticMapping.resetMap();
  Configuration conf = new HdfsConfiguration();
  final String[] racks = { "/RACK0", "/RACK0", "/RACK2", "/RACK3", "/RACK2" };
  final String[] hosts = { "/host0", "/host1", "/host2", "/host3", "/host4" };

  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, DEFAULT_BLOCK_SIZE);
  conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, DEFAULT_BLOCK_SIZE / 2);
  cluster = new MiniDFSCluster.Builder(conf).numDataNodes(5).racks(racks)
      .hosts(hosts).build();
  cluster.waitActive();
  nameNodeRpc = cluster.getNameNodeRpc();
  namesystem = cluster.getNamesystem();
  perm = new PermissionStatus("TestDefaultBlockPlacementPolicy", null,
      FsPermission.getDefault());
}
项目：hadoop    文件：TestEditLog.java    
@Override
public void run() {
  PermissionStatus p = namesystem.createFsOwnerPermissions(
                                      new FsPermission((short)0777));
  FSEditLog editLog = namesystem.getEditLog();

  for (int i = 0; i < numTransactions; i++) {
    INodeFile inode = new INodeFile(namesystem.dir.allocateNewInodeId(), null,
        p, 0L, 0L, BlockInfoContiguous.EMPTY_ARRAY, replication, blockSize);
    inode.toUnderConstruction("", "");

    editLog.logOpenFile("/filename" + (startIndex + i), inode, false, false);
    editLog.logCloseFile("/filename" + (startIndex + i), inode);
    editLog.logSync();
  }
}
项目：hadoop    文件：FSImageTestUtil.java    
/**
 * Create an aborted in-progress log in the given directory, containing
 * only a specified number of "mkdirs" operations.
 */
public static void createAbortedLogWithMkdirs(File editsLogDir, int numDirs,
    long firstTxId, long newInodeId) throws IOException {
  FSEditLog editLog = FSImageTestUtil.createStandaloneEditLog(editsLogDir);
  editLog.setNextTxId(firstTxId);
  editLog.openForWrite();

  PermissionStatus perms = PermissionStatus.createImmutable("fakeuser", "fakegroup",
      FsPermission.createImmutable((short)0755));
  for (int i = 1; i <= numDirs; i++) {
    String dirName = "dir" + i;
    INodeDirectory dir = new INodeDirectory(newInodeId + i - 1,
        DFSUtil.string2Bytes(dirName), perms, 0L);
    editLog.logMkDir("/" + dirName, dir);
  }
  editLog.logSync();
  editLog.abortCurrentLogSegment();
}
项目：hadoop    文件：NativeAzureFileSystem.java    
@Override
public void setPermission(Path p, FsPermission permission) throws IOException {
  Path absolutePath = makeAbsolute(p);
  String key = pathToKey(absolutePath);
  FileMetadata metadata = store.retrieveMetadata(key);
  if (metadata == null) {
    throw new FileNotFoundException("File doesn't exist: " + p);
  }
  permission = applyUMask(permission,
      metadata.isDir() ? UMaskApplyMode.ChangeExistingDirectory
          : UMaskApplyMode.ChangeExistingFile);
  if (metadata.getBlobMaterialization() == BlobMaterialization.Implicit) {
    // It's an implicit folder, need to materialize it.
    store.storeEmptyFolder(key, createPermissionStatus(permission));
  } else if (!metadata.getPermissionStatus().getPermission().
      equals(permission)) {
    store.changePermissionStatus(key, new PermissionStatus(
        metadata.getPermissionStatus().getUserName(),
        metadata.getPermissionStatus().getGroupName(),
        permission));
  }
}
项目：hadoop    文件：NativeAzureFileSystem.java    
@Override
public void setOwner(Path p, String username, String groupname)
    throws IOException {
  Path absolutePath = makeAbsolute(p);
  String key = pathToKey(absolutePath);
  FileMetadata metadata = store.retrieveMetadata(key);
  if (metadata == null) {
    throw new FileNotFoundException("File doesn't exist: " + p);
  }
  PermissionStatus newPermissionStatus = new PermissionStatus(
      username == null ?
          metadata.getPermissionStatus().getUserName() : username,
      groupname == null ?
          metadata.getPermissionStatus().getGroupName() : groupname,
      metadata.getPermissionStatus().getPermission());
  if (metadata.getBlobMaterialization() == BlobMaterialization.Implicit) {
    // It's an implicit folder, need to materialize it.
    store.storeEmptyFolder(key, newPermissionStatus);
  } else {
    store.changePermissionStatus(key, newPermissionStatus);
  }
}
项目：big-c    文件：FSEditLog.java    
/** 
 * Add create directory record to edit log
 */
public void logMkDir(String path, INode newNode) {
  PermissionStatus permissions = newNode.getPermissionStatus();
  MkdirOp op = MkdirOp.getInstance(cache.get())
    .setInodeId(newNode.getId())
    .setPath(path)
    .setTimestamp(newNode.getModificationTime())
    .setPermissionStatus(permissions);

  AclFeature f = newNode.getAclFeature();
  if (f != null) {
    op.setAclEntries(AclStorage.readINodeLogicalAcl(newNode));
  }

  XAttrFeature x = newNode.getXAttrFeature();
  if (x != null) {
    op.setXAttrs(x.getXAttrs());
  }
  logEdit(op);
}
项目：big-c    文件：FSImageLoader.java    
private PermissionStatus getPermissionStatus(String path) throws IOException {
  long id = lookup(path);
  FsImageProto.INodeSection.INode inode = fromINodeId(id);
  switch (inode.getType()) {
    case FILE: {
      FsImageProto.INodeSection.INodeFile f = inode.getFile();
      return FSImageFormatPBINode.Loader.loadPermission(
          f.getPermission(), stringTable);
    }
    case DIRECTORY: {
      FsImageProto.INodeSection.INodeDirectory d = inode.getDirectory();
      return FSImageFormatPBINode.Loader.loadPermission(
          d.getPermission(), stringTable);
    }
    case SYMLINK: {
      FsImageProto.INodeSection.INodeSymlink s = inode.getSymlink();
      return FSImageFormatPBINode.Loader.loadPermission(
          s.getPermission(), stringTable);
    }
    default: {
      return null;
    }
  }
}
项目：big-c    文件：FSNamesystem.java    
/**
 * Create a symbolic link.
 */
@SuppressWarnings("deprecation")
void createSymlink(String target, String link,
    PermissionStatus dirPerms, boolean createParent, boolean logRetryCache)
    throws IOException {
  if (!FileSystem.areSymlinksEnabled()) {
    throw new UnsupportedOperationException("Symlinks not supported");
  }
  HdfsFileStatus auditStat = null;
  checkOperation(OperationCategory.WRITE);
  writeLock();
  try {
    checkOperation(OperationCategory.WRITE);
    checkNameNodeSafeMode("Cannot create symlink " + link);
    auditStat = FSDirSymlinkOp.createSymlinkInt(this, target, link, dirPerms,
                                                createParent, logRetryCache);
  } catch (AccessControlException e) {
    logAuditEvent(false, "createSymlink", link, target, null);
    throw e;
  } finally {
    writeUnlock();
  }
  getEditLog().logSync();
  logAuditEvent(true, "createSymlink", link, target, auditStat);
}
项目：big-c    文件：TestDefaultBlockPlacementPolicy.java    
@Before
public void setup() throws IOException {
  StaticMapping.resetMap();
  Configuration conf = new HdfsConfiguration();
  final String[] racks = { "/RACK0", "/RACK0", "/RACK2", "/RACK3", "/RACK2" };
  final String[] hosts = { "/host0", "/host1", "/host2", "/host3", "/host4" };

  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, DEFAULT_BLOCK_SIZE);
  conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, DEFAULT_BLOCK_SIZE / 2);
  cluster = new MiniDFSCluster.Builder(conf).numDataNodes(5).racks(racks)
      .hosts(hosts).build();
  cluster.waitActive();
  nameNodeRpc = cluster.getNameNodeRpc();
  namesystem = cluster.getNamesystem();
  perm = new PermissionStatus("TestDefaultBlockPlacementPolicy", null,
      FsPermission.getDefault());
}
项目：aliyun-oss-hadoop-fs    文件：FSImageFormat.java    
public INodeDirectoryAttributes loadINodeDirectoryAttributes(DataInput in)
    throws IOException {
  final int layoutVersion = getLayoutVersion();

  if (!NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.OPTIMIZE_SNAPSHOT_INODES, layoutVersion)) {
    return loadINodeWithLocalName(true, in, false).asDirectory();
  }

  final byte[] name = FSImageSerialization.readLocalName(in);
  final PermissionStatus permissions = PermissionStatus.read(in);
  final long modificationTime = in.readLong();

  // Read quotas: quota by storage type does not need to be processed below.
  // It is handled only in protobuf based FsImagePBINode class for newer
  // fsImages. Tools using this class such as legacy-mode of offline image viewer
  // should only load legacy FSImages without newer features.
  final long nsQuota = in.readLong();
  final long dsQuota = in.readLong();

  return nsQuota == -1L && dsQuota == -1L ? new INodeDirectoryAttributes.SnapshotCopy(
      name, permissions, null, modificationTime, null)
    : new INodeDirectoryAttributes.CopyWithQuota(name, permissions,
        null, modificationTime, nsQuota, dsQuota, null, null);
}
项目：big-c    文件：NativeAzureFileSystem.java    
@Override
public void setPermission(Path p, FsPermission permission) throws IOException {
  Path absolutePath = makeAbsolute(p);
  String key = pathToKey(absolutePath);
  FileMetadata metadata = store.retrieveMetadata(key);
  if (metadata == null) {
    throw new FileNotFoundException("File doesn't exist: " + p);
  }
  permission = applyUMask(permission,
      metadata.isDir() ? UMaskApplyMode.ChangeExistingDirectory
          : UMaskApplyMode.ChangeExistingFile);
  if (metadata.getBlobMaterialization() == BlobMaterialization.Implicit) {
    // It's an implicit folder, need to materialize it.
    store.storeEmptyFolder(key, createPermissionStatus(permission));
  } else if (!metadata.getPermissionStatus().getPermission().
      equals(permission)) {
    store.changePermissionStatus(key, new PermissionStatus(
        metadata.getPermissionStatus().getUserName(),
        metadata.getPermissionStatus().getGroupName(),
        permission));
  }
}
项目：aliyun-oss-hadoop-fs    文件：TestTruncateQuotaUpdate.java    
private INodeFile createMockFile(long size, short replication) {
  ArrayList<BlockInfo> blocks = new ArrayList<>();
  long createdSize = 0;
  while (createdSize < size) {
    long blockSize = Math.min(BLOCKSIZE, size - createdSize);
    BlockInfo bi = newBlock(blockSize, replication);
    blocks.add(bi);
    createdSize += BLOCKSIZE;
  }
  PermissionStatus perm = new PermissionStatus("foo", "bar", FsPermission
      .createImmutable((short) 0x1ff));
  return new INodeFile(
      ++nextMockINodeId, new byte[0], perm, 0, 0,
      blocks.toArray(new BlockInfo[blocks.size()]), replication,
      BLOCKSIZE);
}
项目：big-c    文件：FSNamesystem.java    
/**
 * Create all the necessary directories
 */
boolean mkdirs(String src, PermissionStatus permissions,
    boolean createParent) throws IOException {
  HdfsFileStatus auditStat = null;
  checkOperation(OperationCategory.WRITE);
  writeLock();
  try {
    checkOperation(OperationCategory.WRITE);
    checkNameNodeSafeMode("Cannot create directory " + src);
    auditStat = FSDirMkdirOp.mkdirs(this, src, permissions, createParent);
  } catch (AccessControlException e) {
    logAuditEvent(false, "mkdirs", src);
    throw e;
  } finally {
    writeUnlock();
  }
  getEditLog().logSync();
  logAuditEvent(true, "mkdirs", src, null, auditStat);
  return true;
}
项目：aliyun-oss-hadoop-fs    文件：TestINodeFile.java    
/**
 * For a given path, build a tree of INodes and return the leaf node.
 */
private INode createTreeOfInodes(String path) throws QuotaExceededException {
  byte[][] components = INode.getPathComponents(path);
  FsPermission perm = FsPermission.createImmutable((short)0755);
  PermissionStatus permstatus = PermissionStatus.createImmutable("", "", perm);

  long id = 0;
  INodeDirectory prev = new INodeDirectory(++id, new byte[0], permstatus, 0);
  INodeDirectory dir = null;
  for (byte[] component : components) {
    if (component.length == 0) {
      continue;
    }
    System.out.println("Adding component " + DFSUtil.bytes2String(component));
    dir = new INodeDirectory(++id, component, permstatus, 0);
    prev.addChild(dir, false, Snapshot.CURRENT_STATE_ID);
    prev = dir;
  }
  return dir; // Last Inode in the chain
}
项目：aliyun-oss-hadoop-fs    文件：TestDefaultBlockPlacementPolicy.java    
@Before
public void setup() throws IOException {
  StaticMapping.resetMap();
  Configuration conf = new HdfsConfiguration();
  final String[] racks = { "/RACK0", "/RACK0", "/RACK2", "/RACK3", "/RACK2" };
  final String[] hosts = { "/host0", "/host1", "/host2", "/host3", "/host4" };

  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, DEFAULT_BLOCK_SIZE);
  conf.setInt(DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY, DEFAULT_BLOCK_SIZE / 2);
  cluster = new MiniDFSCluster.Builder(conf).numDataNodes(5).racks(racks)
      .hosts(hosts).build();
  cluster.waitActive();
  nameNodeRpc = cluster.getNameNodeRpc();
  namesystem = cluster.getNamesystem();
  perm = new PermissionStatus("TestDefaultBlockPlacementPolicy", null,
      FsPermission.getDefault());
}
项目：aliyun-oss-hadoop-fs    文件：TestEditLog.java    
@Override
public void run() {
  PermissionStatus p = namesystem.createFsOwnerPermissions(
                                      new FsPermission((short)0777));
  FSEditLog editLog = namesystem.getEditLog();

  for (int i = 0; i < numTransactions; i++) {
    INodeFile inode = new INodeFile(namesystem.dir.allocateNewInodeId(), null,
        p, 0L, 0L, BlockInfo.EMPTY_ARRAY, replication, blockSize);
    inode.toUnderConstruction("", "");

    editLog.logOpenFile("/filename" + (startIndex + i), inode, false, false);
    editLog.logCloseFile("/filename" + (startIndex + i), inode);
    editLog.logSync();
  }
}
项目：aliyun-oss-hadoop-fs    文件：FSImageTestUtil.java    
/**
 * Create an aborted in-progress log in the given directory, containing
 * only a specified number of "mkdirs" operations.
 */
public static void createAbortedLogWithMkdirs(File editsLogDir, int numDirs,
    long firstTxId, long newInodeId) throws IOException {
  FSEditLog editLog = FSImageTestUtil.createStandaloneEditLog(editsLogDir);
  editLog.setNextTxId(firstTxId);
  editLog.openForWrite(NameNodeLayoutVersion.CURRENT_LAYOUT_VERSION);

  PermissionStatus perms = PermissionStatus.createImmutable("fakeuser", "fakegroup",
      FsPermission.createImmutable((short)0755));
  for (int i = 1; i <= numDirs; i++) {
    String dirName = "dir" + i;
    INodeDirectory dir = new INodeDirectory(newInodeId + i - 1,
        DFSUtil.string2Bytes(dirName), perms, 0L);
    editLog.logMkDir("/" + dirName, dir);
  }
  editLog.logSync();
  editLog.abortCurrentLogSegment();
}
项目：aliyun-oss-hadoop-fs    文件：NativeAzureFileSystem.java    
@Override
public void setPermission(Path p, FsPermission permission) throws IOException {
  Path absolutePath = makeAbsolute(p);
  String key = pathToKey(absolutePath);
  FileMetadata metadata = store.retrieveMetadata(key);
  if (metadata == null) {
    throw new FileNotFoundException("File doesn't exist: " + p);
  }
  permission = applyUMask(permission,
      metadata.isDir() ? UMaskApplyMode.ChangeExistingDirectory
          : UMaskApplyMode.ChangeExistingFile);
  if (metadata.getBlobMaterialization() == BlobMaterialization.Implicit) {
    // It's an implicit folder, need to materialize it.
    store.storeEmptyFolder(key, createPermissionStatus(permission));
  } else if (!metadata.getPermissionStatus().getPermission().
      equals(permission)) {
    store.changePermissionStatus(key, new PermissionStatus(
        metadata.getPermissionStatus().getUserName(),
        metadata.getPermissionStatus().getGroupName(),
        permission));
  }
}
项目：aliyun-oss-hadoop-fs    文件：NativeAzureFileSystem.java    
@Override
public void setOwner(Path p, String username, String groupname)
    throws IOException {
  Path absolutePath = makeAbsolute(p);
  String key = pathToKey(absolutePath);
  FileMetadata metadata = store.retrieveMetadata(key);
  if (metadata == null) {
    throw new FileNotFoundException("File doesn't exist: " + p);
  }
  PermissionStatus newPermissionStatus = new PermissionStatus(
      username == null ?
          metadata.getPermissionStatus().getUserName() : username,
      groupname == null ?
          metadata.getPermissionStatus().getGroupName() : groupname,
      metadata.getPermissionStatus().getPermission());
  if (metadata.getBlobMaterialization() == BlobMaterialization.Implicit) {
    // It's an implicit folder, need to materialize it.
    store.storeEmptyFolder(key, newPermissionStatus);
  } else {
    store.changePermissionStatus(key, newPermissionStatus);
  }
}
项目：big-c    文件：NativeAzureFileSystem.java    
@Override
public void setOwner(Path p, String username, String groupname)
    throws IOException {
  Path absolutePath = makeAbsolute(p);
  String key = pathToKey(absolutePath);
  FileMetadata metadata = store.retrieveMetadata(key);
  if (metadata == null) {
    throw new FileNotFoundException("File doesn't exist: " + p);
  }
  PermissionStatus newPermissionStatus = new PermissionStatus(
      username == null ?
          metadata.getPermissionStatus().getUserName() : username,
      groupname == null ?
          metadata.getPermissionStatus().getGroupName() : groupname,
      metadata.getPermissionStatus().getPermission());
  if (metadata.getBlobMaterialization() == BlobMaterialization.Implicit) {
    // It's an implicit folder, need to materialize it.
    store.storeEmptyFolder(key, newPermissionStatus);
  } else {
    store.changePermissionStatus(key, newPermissionStatus);
  }
}
项目：big-c    文件：FSImageFormat.java    
/** Load {@link INodeFileAttributes}. */
public INodeFileAttributes loadINodeFileAttributes(DataInput in)
    throws IOException {
  final int layoutVersion = getLayoutVersion();

  if (!NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.OPTIMIZE_SNAPSHOT_INODES, layoutVersion)) {
    return loadINodeWithLocalName(true, in, false).asFile();
  }

  final byte[] name = FSImageSerialization.readLocalName(in);
  final PermissionStatus permissions = PermissionStatus.read(in);
  final long modificationTime = in.readLong();
  final long accessTime = in.readLong();

  final short replication = namesystem.getBlockManager().adjustReplication(
      in.readShort());
  final long preferredBlockSize = in.readLong();

  return new INodeFileAttributes.SnapshotCopy(name, permissions, null, modificationTime,
      accessTime, replication, preferredBlockSize, (byte) 0, null);
}
项目：big-c    文件：FSDirMkdirOp.java    
/**
 * create a directory at path specified by parent
 */
private static INodesInPath unprotectedMkdir(FSDirectory fsd, long inodeId,
    INodesInPath parent, byte[] name, PermissionStatus permission,
    List<AclEntry> aclEntries, long timestamp)
    throws QuotaExceededException, AclException, FileAlreadyExistsException {
  assert fsd.hasWriteLock();
  assert parent.getLastINode() != null;
  if (!parent.getLastINode().isDirectory()) {
    throw new FileAlreadyExistsException("Parent path is not a directory: " +
        parent.getPath() + " " + DFSUtil.bytes2String(name));
  }
  final INodeDirectory dir = new INodeDirectory(inodeId, name, permission,
      timestamp);

  INodesInPath iip = fsd.addLastINode(parent, dir, true);
  if (iip != null && aclEntries != null) {
    AclStorage.updateINodeAcl(dir, aclEntries, Snapshot.CURRENT_STATE_ID);
  }
  return iip;
}
项目：hadoop    文件：INodeFileAttributes.java    
public SnapshotCopy(byte[] name, PermissionStatus permissions,
    AclFeature aclFeature, long modificationTime, long accessTime,
    short replication, long preferredBlockSize, byte storagePolicyID,
    XAttrFeature xAttrsFeature) {
  super(name, permissions, aclFeature, modificationTime, accessTime, 
      xAttrsFeature);
  header = HeaderFormat.toLong(preferredBlockSize, replication, storagePolicyID);
}
项目：hadoop    文件：INodeDirectoryAttributes.java    
public CopyWithQuota(byte[] name, PermissionStatus permissions,
    AclFeature aclFeature, long modificationTime, long nsQuota,
    long dsQuota, EnumCounters<StorageType> typeQuotas, XAttrFeature xAttrsFeature) {
  super(name, permissions, aclFeature, modificationTime, xAttrsFeature);
  this.quota = new QuotaCounts.Builder().nameSpace(nsQuota).
      storageSpace(dsQuota).typeSpaces(typeQuotas).build();
}
项目：hadoop    文件：FSEditLogOp.java    
@Override
void readFields(DataInputStream in, int logVersion)
    throws IOException {
  if (!NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
    this.length = in.readInt();
    if (this.length != 4) {
      throw new IOException("Incorrect data format. "
          + "symlink operation.");
    }
  }
  if (NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.ADD_INODE_ID, logVersion)) {
    this.inodeId = FSImageSerialization.readLong(in);
  } else {
    // This id should be updated when the editLogOp is applied
    this.inodeId = INodeId.GRANDFATHER_INODE_ID;
  }
  this.path = FSImageSerialization.readString(in);
  this.value = FSImageSerialization.readString(in);

  if (NameNodeLayoutVersion.supports(
      LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
    this.mtime = FSImageSerialization.readLong(in);
    this.atime = FSImageSerialization.readLong(in);
  } else {
    this.mtime = readLong(in);
    this.atime = readLong(in);
  }
  this.permissionStatus = PermissionStatus.read(in);

  // read RPC ids if necessary
  readRpcIds(in, logVersion);
}
项目：hadoop    文件：FSEditLogOp.java    
public static void permissionStatusToXml(ContentHandler contentHandler,
    PermissionStatus perm) throws SAXException {
  contentHandler.startElement("", "", "PERMISSION_STATUS", new AttributesImpl());
  XMLUtils.addSaxString(contentHandler, "USERNAME", perm.getUserName());
  XMLUtils.addSaxString(contentHandler, "GROUPNAME", perm.getGroupName());
  fsPermissionToXml(contentHandler, perm.getPermission());
  contentHandler.endElement("", "", "PERMISSION_STATUS");
}
项目：hadoop    文件：FSEditLogOp.java    
public static PermissionStatus permissionStatusFromXml(Stanza st)
    throws InvalidXmlException {
  Stanza status = st.getChildren("PERMISSION_STATUS").get(0);
  String username = status.getValue("USERNAME");
  String groupname = status.getValue("GROUPNAME");
  FsPermission mode = fsPermissionFromXml(status);
  return new PermissionStatus(username, groupname, mode);
}
项目：hadoop    文件：FSDirSymlinkOp.java    
static INodeSymlink unprotectedAddSymlink(FSDirectory fsd, INodesInPath iip,
    byte[] localName, long id, String target, long mtime, long atime,
    PermissionStatus perm)
    throws UnresolvedLinkException, QuotaExceededException {
  assert fsd.hasWriteLock();
  final INodeSymlink symlink = new INodeSymlink(id, null, perm, mtime, atime,
      target);
  symlink.setLocalName(localName);
  return fsd.addINode(iip, symlink) != null ? symlink : null;
}