alluxio.client.lineage

Class DummyFileOutputStream

java.lang.Object

java.io.OutputStream

alluxio.client.AbstractOutStream

alluxio.client.file.FileOutStream

alluxio.client.lineage.DummyFileOutputStream

All Implemented Interfaces:

Cancelable, Closeable, Flushable, AutoCloseable

@NotThreadSafe
public final class DummyFileOutputStream
extends FileOutStream

A dummy file output stream that does nothing. This is used for lineage recomputation. When the file is not lost on Alluxio, there's no need for the job to rewrite the file.

Field Summary

Fields inherited from class alluxio.client.file.FileOutStream

mUri

Fields inherited from class alluxio.client.AbstractOutStream

mBytesWritten

Constructor Summary

Constructors

Constructor and Description
DummyFileOutputStream(AlluxioURI path, OutStreamOptions options) Constructs a new dummy file output stream.

Method Summary

Modifier and Type	Method and Description
void	close()
void	flush()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class alluxio.client.file.FileOutStream

cancel, scheduleAsyncPersist

Methods inherited from class alluxio.client.AbstractOutStream

getBytesWritten

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DummyFileOutputStream

public DummyFileOutputStream(AlluxioURI path,
                             OutStreamOptions options)
                      throws IOException

Constructs a new dummy file output stream.

Parameters:

path - the path of the file

options - the set of options specific to this operation

Throws:

IOException

Method Detail

flush

public void flush()

Specified by:

flush in interface Flushable

Overrides:

flush in class FileOutStream

write

public void write(int b)

Overrides:

write in class FileOutStream

write

public void write(byte[] b)

Overrides:

write in class FileOutStream

write

public void write(byte[] b,
                  int off,
                  int len)

Overrides:

write in class FileOutStream

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class FileOutStream