org.apache.hadoop.fs.azure

Class NativeAzureFileSystem.NativeAzureFsOutputStream

java.lang.Object

java.io.OutputStream

org.apache.hadoop.fs.azure.NativeAzureFileSystem.NativeAzureFsOutputStream

All Implemented Interfaces:

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

Enclosing class:

NativeAzureFileSystem

public class NativeAzureFileSystem.NativeAzureFsOutputStream
extends OutputStream
implements org.apache.hadoop.fs.Syncable, org.apache.hadoop.fs.StreamCapabilities

Azure output stream; wraps an inner stream of different types.

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

DROPBEHIND, HFLUSH, HSYNC, READAHEAD, UNBUFFER

Constructor Summary

Constructors

Constructor and Description
NativeAzureFsOutputStream(OutputStream out, String aKey, String anEncodedKey)

Method Summary

Modifier and Type	Method and Description
void	close()
String	getEncodedKey() Get the blob name.
String	getKey() Get the blob name.
OutputStream	getOutStream() Get a reference to the wrapped output stream.
boolean	hasCapability(String capability) Propagate probe of stream capabilities to nested stream (if supported), else return false.
void	hflush()
void	hsync()
void	setEncodedKey(String anEncodedKey) Set the blob name.
void	setKey(String key) Set the blob name.
void	write(byte[] b) Writes b.length bytes from the specified byte array to this output stream.
void	write(byte[] b, int off, int len) Writes len from the specified byte array starting at offset off to the output stream.
void	write(int b) Writes the specified byte to this output stream.

Methods inherited from class java.io.OutputStream

flush

Methods inherited from class java.lang.Object

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

Constructor Detail

NativeAzureFsOutputStream

public NativeAzureFsOutputStream(OutputStream out,
                                 String aKey,
                                 String anEncodedKey)
                          throws IOException

Throws:

IOException

Method Detail

getOutStream

@InterfaceAudience.LimitedPrivate(value="HDFS")
public OutputStream getOutStream()

Get a reference to the wrapped output stream.

Returns:

the underlying output stream

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)

Propagate probe of stream capabilities to nested stream (if supported), else return false.

Specified by:

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

Parameters:

capability - string to query the stream support for.

Returns:

true if the nested stream supports the specific capability.

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

write

public void write(int b)
           throws IOException

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Specified by:

write in class OutputStream

Parameters:

b - 32-bit integer of block of 4 bytes

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Writes b.length bytes from the specified byte array to this output stream. The general contract for write(b) is that it should have exactly the same effect as the call write(b, 0, b.length).

Overrides:

write in class OutputStream

Parameters:

b - Block of bytes to be written to the output stream.

Throws:

IOException

write

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

Writes len from the specified byte array starting at offset off to the output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

Overrides:

write in class OutputStream

Parameters:

b - Byte array to be written.

off - Write this offset in stream.

len - Number of bytes to be written.

Throws:

IOException

getKey

public String getKey()

Get the blob name.

Returns:

String Blob name.

setKey

public void setKey(String key)

Set the blob name.

Parameters:

key - Blob name.

getEncodedKey

public String getEncodedKey()

Get the blob name.

Returns:

String Blob name.

setEncodedKey

public void setEncodedKey(String anEncodedKey)

Set the blob name.

Parameters:

anEncodedKey - Blob name.