tachyon.client

Class TachyonFile

java.lang.Object

tachyon.client.TachyonFile

All Implemented Interfaces:

Comparable<TachyonFile>

public class TachyonFile
extends Object
implements Comparable<TachyonFile>

Tachyon File.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(TachyonFile o)
boolean	equals(Object obj)
long	getBlockId(int blockIndex)
long	getBlockSizeByte()
long	getCreationTimeMs()
int	getDiskReplication()
InStream	getInStream(ReadType readType)
String	getLocalFilename(int blockIndex) Returns the local filename for the block if that file exists on the local file system.
List<String>	getLocationHosts()
int	getNumberOfBlocks()
OutStream	getOutStream(WriteType writeType)
String	getPath()
int	hashCode()
boolean	isComplete()
boolean	isDirectory()
boolean	isFile()
boolean	isInLocalMemory()
boolean	isInMemory()
long	length()
boolean	needPin()
TachyonByteBuffer	readByteBuffer()
boolean	recache()
boolean	rename(String path)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getInStream

public InStream getInStream(ReadType readType)
                     throws IOException

Throws:

IOException

getOutStream

public OutStream getOutStream(WriteType writeType)
                       throws IOException

Throws:

IOException

getPath

public String getPath()

getLocationHosts

public List<String> getLocationHosts()
                              throws IOException

Throws:

IOException

isFile

public boolean isFile()

isDirectory

public boolean isDirectory()

isInLocalMemory

public boolean isInLocalMemory()

isInMemory

public boolean isInMemory()

isComplete

public boolean isComplete()

length

public long length()

getNumberOfBlocks

public int getNumberOfBlocks()
                      throws IOException

Throws:

IOException

getBlockSizeByte

public long getBlockSizeByte()

readByteBuffer

public TachyonByteBuffer readByteBuffer()
                                 throws IOException

Throws:

IOException

getLocalFilename

public String getLocalFilename(int blockIndex)
                        throws IOException

Returns the local filename for the block if that file exists on the local file system. This is an alpha power-api feature for applications that want short-circuit-read files directly. There is no guarantee that the file still exists after this call returns, as Tachyon may evict blocks from memory at any time.

Parameters:

blockId - The id of the block.

Returns:

filename on local file system or null if file not present on local file system.

Throws:

IOException

recache

public boolean recache()
                throws IOException

Throws:

IOException

rename

public boolean rename(String path)
               throws IOException

Throws:

IOException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

compareTo

public int compareTo(TachyonFile o)

Specified by:

compareTo in interface Comparable<TachyonFile>

toString

public String toString()

Overrides:

toString in class Object

getBlockId

public long getBlockId(int blockIndex)
                throws IOException

Throws:

IOException

needPin

public boolean needPin()

getDiskReplication

public int getDiskReplication()

getCreationTimeMs

public long getCreationTimeMs()