org.apache.hadoop.io.compress

类 DecompressorStream

java.lang.Object

java.io.InputStream

org.apache.hadoop.io.compress.CompressionInputStream

org.apache.hadoop.io.compress.DecompressorStream

所有已实现的接口:

Closeable, AutoCloseable, Seekable

直接已知子类:

BlockDecompressorStream

public class DecompressorStream
extends CompressionInputStream

字段概要

字段

限定符和类型	字段和说明
protected byte[]	buffer
protected boolean	closed
protected Decompressor	decompressor
protected boolean	eof

从类继承的字段 org.apache.hadoop.io.compress.CompressionInputStream

in, maxAvailableData

构造器概要

构造器

限定符	构造器和说明
protected	DecompressorStream(InputStream in) Allow derived classes to directly set the underlying stream.
	DecompressorStream(InputStream in, Decompressor decompressor)
	DecompressorStream(InputStream in, Decompressor decompressor, int bufferSize)

方法概要

方法

限定符和类型	方法和说明
int	available()
protected void	checkStream()
void	close()
protected int	decompress(byte[] b, int off, int len)
protected int	getCompressedData()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b, int off, int len) Read bytes from the stream.
void	reset()
void	resetState() Reset the decompressor to its initial state and discard any buffered data, as the underlying stream may have been repositioned.
long	skip(long n)

从类继承的方法 org.apache.hadoop.io.compress.CompressionInputStream

getPos, seek, seekToNewSource

从类继承的方法 java.io.InputStream

read

从类继承的方法 java.lang.Object

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

字段详细资料

decompressor

protected Decompressor decompressor

buffer

protected byte[] buffer

eof

protected boolean eof

closed

protected boolean closed

构造器详细资料

DecompressorStream

public DecompressorStream(InputStream in,
                  Decompressor decompressor,
                  int bufferSize)
                   throws IOException

抛出:

IOException

DecompressorStream

public DecompressorStream(InputStream in,
                  Decompressor decompressor)
                   throws IOException

抛出:

IOException

DecompressorStream

protected DecompressorStream(InputStream in)
                      throws IOException

Allow derived classes to directly set the underlying stream.

参数:

in - Underlying input stream.

抛出:

IOException

方法详细资料

read

public int read()
         throws IOException

指定者:

read 在类中 InputStream

抛出:

IOException

read

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

从类复制的说明: CompressionInputStream

Read bytes from the stream. Made abstract to prevent leakage to underlying stream.

指定者:

read 在类中 CompressionInputStream

抛出:

IOException

decompress

protected int decompress(byte[] b,
             int off,
             int len)
                  throws IOException

抛出:

IOException

getCompressedData

protected int getCompressedData()
                         throws IOException

抛出:

IOException

checkStream

protected void checkStream()
                    throws IOException

抛出:

IOException

resetState

public void resetState()
                throws IOException

从类复制的说明: CompressionInputStream

Reset the decompressor to its initial state and discard any buffered data, as the underlying stream may have been repositioned.

指定者:

resetState 在类中 CompressionInputStream

抛出:

IOException

skip

public long skip(long n)
          throws IOException

覆盖:

skip 在类中 InputStream

抛出:

IOException

available

public int available()
              throws IOException

覆盖:

available 在类中 InputStream

抛出:

IOException

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 CompressionInputStream

抛出:

IOException

markSupported

public boolean markSupported()

覆盖:

markSupported 在类中 InputStream

mark

public void mark(int readlimit)

覆盖:

mark 在类中 InputStream

reset

public void reset()
           throws IOException

覆盖:

reset 在类中 InputStream

抛出:

IOException