org.apache.hadoop.hbase.io.asyncfs

类 WrapperAsyncFSOutput

java.lang.Object

org.apache.hadoop.hbase.io.asyncfs.WrapperAsyncFSOutput

所有已实现的接口:

Closeable, AutoCloseable, AsyncFSOutput

@InterfaceAudience.Private
public class WrapperAsyncFSOutput
extends Object
implements AsyncFSOutput

An AsyncFSOutput wraps a FSDataOutputStream.

构造器概要

构造器

构造器和说明
WrapperAsyncFSOutput(org.apache.hadoop.fs.Path file, org.apache.hadoop.fs.FSDataOutputStream out)

方法概要

限定符和类型	方法和说明
int	buffered() Return the current size of buffered data.
void	close() Close the file.
CompletableFuture<Long>	flush(boolean sync) Flush the buffer out.
org.apache.hadoop.hdfs.protocol.DatanodeInfo[]	getPipeline() Return current pipeline.
boolean	isBroken() Whether the stream is broken.
void	recoverAndClose(CancelableProgressable reporter) The close method when error occurred.
void	write(byte[] b) Just call write(b, 0, b.length).
void	write(byte[] b, int off, int len) Copy the data into the buffer.
void	write(ByteBuffer bb) Copy the data in the given bb into the buffer.
void	writeInt(int i) Write an int to the buffer.

从类继承的方法 java.lang.Object

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

构造器详细资料

WrapperAsyncFSOutput

public WrapperAsyncFSOutput(org.apache.hadoop.fs.Path file,
                            org.apache.hadoop.fs.FSDataOutputStream out)

方法详细资料

write

public void write(byte[] b)

从接口复制的说明: AsyncFSOutput

Just call write(b, 0, b.length).

指定者:

write 在接口中 AsyncFSOutput

另请参阅:

AsyncFSOutput.write(byte[], int, int)

write

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

从接口复制的说明: AsyncFSOutput

Copy the data into the buffer. Note that you need to call AsyncFSOutput.flush(boolean) to flush the buffer manually.

指定者:

write 在接口中 AsyncFSOutput

writeInt

public void writeInt(int i)

从接口复制的说明: AsyncFSOutput

Write an int to the buffer.

指定者:

writeInt 在接口中 AsyncFSOutput

write

public void write(ByteBuffer bb)

从接口复制的说明: AsyncFSOutput

Copy the data in the given bb into the buffer.

指定者:

write 在接口中 AsyncFSOutput

buffered

public int buffered()

从接口复制的说明: AsyncFSOutput

Return the current size of buffered data.

指定者:

buffered 在接口中 AsyncFSOutput

getPipeline

public org.apache.hadoop.hdfs.protocol.DatanodeInfo[] getPipeline()

从接口复制的说明: AsyncFSOutput

Return current pipeline. Empty array if no pipeline.

指定者:

getPipeline 在接口中 AsyncFSOutput

flush

public CompletableFuture<Long> flush(boolean sync)

从接口复制的说明: AsyncFSOutput

Flush the buffer out.

指定者:

flush 在接口中 AsyncFSOutput

参数:

sync - persistent the data to device

返回:

A CompletableFuture that hold the acked length after flushing.

recoverAndClose

public void recoverAndClose(CancelableProgressable reporter)
                     throws IOException

从接口复制的说明: AsyncFSOutput

The close method when error occurred.

指定者:

recoverAndClose 在接口中 AsyncFSOutput

抛出:

IOException

close

public void close()
           throws IOException

从接口复制的说明: AsyncFSOutput

Close the file. You should call AsyncFSOutput.recoverAndClose(CancelableProgressable) if this method throws an exception.

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

指定者:

close 在接口中 AsyncFSOutput

抛出:

IOException

isBroken

public boolean isBroken()

从接口复制的说明: AsyncFSOutput

Whether the stream is broken.

指定者:

isBroken 在接口中 AsyncFSOutput