alluxio.client.file

Class AlluxioFileOutStream

java.lang.Object

java.io.OutputStream

alluxio.client.file.FileOutStream

alluxio.client.file.AlluxioFileOutStream

All Implemented Interfaces:

Cancelable, java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

@NotThreadSafe
public class AlluxioFileOutStream
extends FileOutStream

Provides a streaming API to write a file. This class wraps the BlockOutStreams for each of the blocks in the file and abstracts the switching between streams. The backing streams can write to Alluxio space in the local machine or remote machines. If the UnderStorageType is UnderStorageType.SYNC_PERSIST, another stream will write the data to the under storage system.

Field Summary

Fields

Modifier and Type	Field and Description
protected AlluxioURI	mUri

Fields inherited from class alluxio.client.file.FileOutStream

mBytesWritten

Constructor Summary

Constructors

Constructor and Description
AlluxioFileOutStream(AlluxioURI path, OutStreamOptions options, FileSystemContext context) Creates a new file output stream.

Method Summary

Modifier and Type	Method and Description
void	cancel() Aborts the output stream.
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

getBytesWritten

Methods inherited from class java.lang.Object

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

Field Detail

mUri

protected final AlluxioURI mUri

Constructor Detail

AlluxioFileOutStream

public AlluxioFileOutStream(AlluxioURI path,
                            OutStreamOptions options,
                            FileSystemContext context)
                     throws java.io.IOException

Creates a new file output stream.

Parameters:

path - the file path

options - the client options

context - the file system context

Throws:

java.io.IOException

Method Detail

cancel

public void cancel()
            throws java.io.IOException

Description copied from class: FileOutStream

Aborts the output stream.

Specified by:

cancel in interface Cancelable

Overrides:

cancel in class FileOutStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(byte[] b)
           throws java.io.IOException

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException