org.apache.commons.compress.compressors.deflate

Class DeflateCompressorInputStream

java.lang.Object

java.io.InputStream

org.apache.commons.compress.compressors.CompressorInputStream

org.apache.commons.compress.compressors.deflate.DeflateCompressorInputStream

All Implemented Interfaces:

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

public class DeflateCompressorInputStream
extends CompressorInputStream
implements InputStreamStatistics

Deflate decompressor.

Since:

1.9

Constructor Summary

Constructors

Constructor and Description
DeflateCompressorInputStream(java.io.InputStream inputStream) Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.
DeflateCompressorInputStream(java.io.InputStream inputStream, DeflateParameters parameters) Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.

Method Summary

Modifier and Type	Method and Description
int	available()
void	close()
long	getCompressedCount()
static boolean	matches(byte[] signature, int length) Checks if the signature matches what is expected for a zlib / deflated file with the zlib header.
int	read()
int	read(byte[] buf, int off, int len)
long	skip(long n)

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

getBytesRead, getCount, getUncompressedCount

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset

Methods inherited from class java.lang.Object

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

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

getUncompressedCount

Constructor Detail

DeflateCompressorInputStream

public DeflateCompressorInputStream(java.io.InputStream inputStream)

Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.

Parameters:

inputStream - where to read the compressed data

DeflateCompressorInputStream

public DeflateCompressorInputStream(java.io.InputStream inputStream,
                                    DeflateParameters parameters)

Creates a new input stream that decompresses Deflate-compressed data from the specified input stream.

Parameters:

inputStream - where to read the compressed data

parameters - parameters

Method Detail

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

skip

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

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException

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

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

matches

public static boolean matches(byte[] signature,
                              int length)

Checks if the signature matches what is expected for a zlib / deflated file with the zlib header.

Parameters:

signature - the bytes to check

length - the number of bytes to check

Returns:

true, if this stream is zlib / deflate compressed with a header stream, false otherwise

Since:

1.10