org.apache.commons.compress.compressors.zstandard

Class ZstdCompressorInputStream

java.lang.Object

java.io.InputStream

org.apache.commons.compress.compressors.CompressorInputStream

org.apache.commons.compress.compressors.zstandard.ZstdCompressorInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, InputStreamStatistics

public class ZstdCompressorInputStream
extends CompressorInputStream
implements InputStreamStatistics

CompressorInputStream implementation to decode Zstandard encoded stream. Library relies on Zstandard JNI

Since:

1.16

Constructor Summary

Constructors

Constructor and Description
ZstdCompressorInputStream(java.io.InputStream in)
ZstdCompressorInputStream(java.io.InputStream in, com.github.luben.zstd.BufferPool bufferPool) Creates a new input stream that decompresses zstd-compressed data from the specific input stream

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
long	getCompressedCount()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] buf, int off, int len)
void	reset()
long	skip(long n)
java.lang.String	toString()

Methods inherited from class org.apache.commons.compress.compressors.CompressorInputStream

getBytesRead, getCount, getUncompressedCount

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.commons.compress.utils.InputStreamStatistics

getUncompressedCount

Constructor Detail

ZstdCompressorInputStream

public ZstdCompressorInputStream(java.io.InputStream in)
                          throws java.io.IOException

Throws:

java.io.IOException

ZstdCompressorInputStream

public ZstdCompressorInputStream(java.io.InputStream in,
                                 com.github.luben.zstd.BufferPool bufferPool)
                          throws java.io.IOException

Creates a new input stream that decompresses zstd-compressed data from the specific input stream

Parameters:

in - the input stream of compressed data

bufferPool - a configuration of zstd-jni that allows users to customize how buffers are recycled. Either a NoPool or a RecyclingBufferPool is allowed here.

Throws:

java.io.IOException - if an IO error occurs.

Method Detail

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] b)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

mark

public void mark(int readlimit)

Overrides:

mark in class java.io.InputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class java.io.InputStream

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

read

public int read(byte[] buf,
                int off,
                int len)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

getCompressedCount

public long getCompressedCount()

Specified by:

getCompressedCount in interface InputStreamStatistics

Returns:

the amount of raw or compressed bytes read by the stream

Since:

1.17