org.apache.hadoop.io.compress

Class SplitCompressionInputStream

java.lang.Object

java.io.InputStream

org.apache.hadoop.io.compress.CompressionInputStream

org.apache.hadoop.io.compress.SplitCompressionInputStream

All Implemented Interfaces:

Closeable, AutoCloseable, Seekable, org.apache.hadoop.fs.statistics.IOStatisticsSource

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public abstract class SplitCompressionInputStream
extends CompressionInputStream

An InputStream covering a range of compressed data. The start and end offsets requested by a client may be modified by the codec to fit block boundaries or other algorithm-dependent requirements.

Field Summary

Fields inherited from class org.apache.hadoop.io.compress.CompressionInputStream

in, maxAvailableData

Constructor Summary

Constructors

Constructor and Description
SplitCompressionInputStream(InputStream in, long start, long end)

Method Summary

Modifier and Type	Method and Description
long	getAdjustedEnd() After calling createInputStream, the values of start or end might change.
long	getAdjustedStart() After calling createInputStream, the values of start or end might change.
protected void	setEnd(long end)
protected void	setStart(long start)

Methods inherited from class org.apache.hadoop.io.compress.CompressionInputStream

close, getIOStatistics, getPos, read, resetState, seek, seekToNewSource

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

SplitCompressionInputStream

public SplitCompressionInputStream(InputStream in,
                                   long start,
                                   long end)
                            throws IOException

Throws:

IOException

Method Detail

setStart

protected void setStart(long start)

setEnd

protected void setEnd(long end)

getAdjustedStart

public long getAdjustedStart()

After calling createInputStream, the values of start or end might change. So this method can be used to get the new value of start.

Returns:

The changed value of start

getAdjustedEnd

public long getAdjustedEnd()

After calling createInputStream, the values of start or end might change. So this method can be used to get the new value of end.

Returns:

The changed value of end