tachyon.master

Class InodeFolder

java.lang.Object

tachyon.master.ImageWriter

tachyon.master.Inode

tachyon.master.InodeFolder

All Implemented Interfaces:

Comparable<Inode>

public class InodeFolder
extends Inode

Tachyon file system's folder representation in master.

Field Summary

Fields inherited from class tachyon.master.Inode

mIsFolder

Constructor Summary

Constructors

Constructor and Description
InodeFolder(String name, int id, int parentId, long creationTimeMs) Create a new InodeFolder.

Method Summary

Methods

Modifier and Type	Method and Description
void	addChild(Inode child) Adds the given inode to the set of children.
void	addChildren(Inode[] children) Adds the given inodes to the set of children.
ClientFileInfo	generateClientFileInfo(String path) Generates client file info for the folder.
Inode	getChild(int fid) Returns the child with the given id.
Inode	getChild(String name) Returns the child with the given name.
Set<Inode>	getChildren() Returns the folder's children.
List<Integer>	getChildrenIds() Returns the ids of the children.
int	getNumberOfChildren() Returns the number of children the folder has.
boolean	removeChild(Inode child) Removes the given inode from the folder.
boolean	removeChild(String name) Removes the given child from the folder.
String	toString()
void	writeImage(com.fasterxml.jackson.databind.ObjectWriter objWriter, DataOutputStream dos) Write an image of the folder.

Methods inherited from class tachyon.master.Inode

compareTo, equals, getCreationTimeMs, getId, getLastModificationTimeMs, getName, getParentId, hashCode, isDirectory, isFile, isPinned, reverseId, setLastModificationTimeMs, setName, setParentId, setPinned

Methods inherited from class tachyon.master.ImageWriter

writeElement

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

InodeFolder

public InodeFolder(String name,
           int id,
           int parentId,
           long creationTimeMs)

Create a new InodeFolder.

Parameters:

name - The name of the folder

id - The id of the folder

parentId - The id of the parent of the folder

creationTimeMs - The creation time of the folder, in milliseconds

Method Detail

addChild

public void addChild(Inode child)

Adds the given inode to the set of children.

Parameters:

child - The inode to add

addChildren

public void addChildren(Inode[] children)

Adds the given inodes to the set of children.

Parameters:

children - The inodes to add

generateClientFileInfo

public ClientFileInfo generateClientFileInfo(String path)

Generates client file info for the folder.

Specified by:

generateClientFileInfo in class Inode

Parameters:

path - The path of the folder in the filesystem

Returns:

the generated ClientFileInfo

getChild

public Inode getChild(int fid)

Returns the child with the given id.

Parameters:

fid - The id of the child

Returns:

the inode with the given id, or null if there is no child with that id

getChild

public Inode getChild(String name)

Returns the child with the given name.

Parameters:

name - The name of the child

Returns:

the inode with the given name, or null if there is no child with that name

getChildren

public Set<Inode> getChildren()

Returns the folder's children.

Returns:

an unmodifiable set of the children inodes.

getChildrenIds

public List<Integer> getChildrenIds()

Returns the ids of the children.

Returns:

the ids of the children

getNumberOfChildren

public int getNumberOfChildren()

Returns the number of children the folder has.

Returns:

the number of children in the folder.

removeChild

public boolean removeChild(Inode child)

Removes the given inode from the folder.

Parameters:

child - The Inode to remove

Returns:

true if the inode was removed, false otherwise.

removeChild

public boolean removeChild(String name)

Removes the given child from the folder.

Parameters:

name - The name of the Inode to remove.

Returns:

true if the inode was removed, false otherwise.

toString

public String toString()

Overrides:

toString in class Inode

writeImage

public void writeImage(com.fasterxml.jackson.databind.ObjectWriter objWriter,
              DataOutputStream dos)
                throws IOException

Write an image of the folder.

Parameters:

dos - The output stream to write the folder to

objWriter - The used object writer

Throws:

IOException