org.apache.hadoop.fs.adl

Class AdlFsOutputStream

java.lang.Object

java.io.OutputStream

org.apache.hadoop.fs.adl.AdlFsOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable, org.apache.hadoop.fs.StreamCapabilities, org.apache.hadoop.fs.Syncable

@InterfaceAudience.Private
 @InterfaceStability.Evolving
public final class AdlFsOutputStream
extends OutputStream
implements org.apache.hadoop.fs.Syncable, org.apache.hadoop.fs.StreamCapabilities

Wraps ADLFileOutputStream implementation. Flush semantics. no-op, since some parts of hadoop ecosystem call flush(), expecting it to have no perf impact. In hadoop filesystems, flush() itself guarantees no durability: that is achieved by calling hflush() or hsync()

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.fs.StreamCapabilities

org.apache.hadoop.fs.StreamCapabilities.StreamCapability

Field Summary

Fields inherited from interface org.apache.hadoop.fs.StreamCapabilities

ABORTABLE_STREAM, DROPBEHIND, HFLUSH, HSYNC, IOSTATISTICS, IOSTATISTICS_CONTEXT, PREADBYTEBUFFER, READAHEAD, READBYTEBUFFER, UNBUFFER, VECTOREDIO

Constructor Summary

Constructors

Constructor and Description
AdlFsOutputStream(com.microsoft.azure.datalake.store.ADLFileOutputStream out, org.apache.hadoop.conf.Configuration configuration)

Method Summary

Modifier and Type	Method and Description
void	close()
boolean	hasCapability(String capability)
void	hflush()
void	hsync()
void	sync()
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Constructor Detail

AdlFsOutputStream

public AdlFsOutputStream(com.microsoft.azure.datalake.store.ADLFileOutputStream out,
                         org.apache.hadoop.conf.Configuration configuration)
                  throws IOException

Throws:

IOException

Method Detail

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

write

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

Overrides:

write in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

Throws:

IOException

sync

public void sync()
          throws IOException

Throws:

IOException

hflush

public void hflush()
            throws IOException

Specified by:

hflush in interface org.apache.hadoop.fs.Syncable

Throws:

IOException

hsync

public void hsync()
           throws IOException

Specified by:

hsync in interface org.apache.hadoop.fs.Syncable

Throws:

IOException

hasCapability

public boolean hasCapability(String capability)

Specified by:

hasCapability in interface org.apache.hadoop.fs.StreamCapabilities