Module kala.compress.compressors.pack200

Package kala.compress.compressors.pack200

Class Pack200CompressorInputStream

java.lang.Object

java.io.InputStream

kala.compress.compressors.CompressorInputStream

kala.compress.compressors.pack200.Pack200CompressorInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class Pack200CompressorInputStream
extends CompressorInputStream

An input stream that decompresses from the Pack200 format to be read as any other stream.

The getBytesRead methods always return 0.

Since:

1.3

Field Summary

Fields

Modifier and Type	Field	Description
private AbstractStreamBridge	abstractStreamBridge
private static byte[]	CAFE_DOOD
private java.io.InputStream	originalInputStream
private static int	SIG_LENGTH

Constructor Summary

Constructors

Modifier	Constructor	Description
	Pack200CompressorInputStream(java.io.File file)	Decompresses the given file, caching the decompressed data in memory.
	Pack200CompressorInputStream(java.io.File file, java.util.Map<java.lang.String,java.lang.String> properties)	Decompresses the given file, caching the decompressed data in memory and using the given properties.
	Pack200CompressorInputStream(java.io.File file, Pack200Strategy mode)	Decompresses the given file using the given strategy to cache the results.
	Pack200CompressorInputStream(java.io.File file, Pack200Strategy mode, java.util.Map<java.lang.String,java.lang.String> properties)	Decompresses the given file using the given strategy to cache the results and the given properties.
	Pack200CompressorInputStream(java.io.InputStream inputStream)	Decompresses the given stream, caching the decompressed data in memory.
private	Pack200CompressorInputStream(java.io.InputStream inputStream, java.io.File file, Pack200Strategy mode, java.util.Map<java.lang.String,java.lang.String> properties)
	Pack200CompressorInputStream(java.io.InputStream inputStream, java.util.Map<java.lang.String,java.lang.String> properties)	Decompresses the given stream, caching the decompressed data in memory and using the given properties.
	Pack200CompressorInputStream(java.io.InputStream inputStream, Pack200Strategy mode)	Decompresses the given stream using the given strategy to cache the results.
	Pack200CompressorInputStream(java.io.InputStream inputStream, Pack200Strategy mode, java.util.Map<java.lang.String,java.lang.String> properties)	Decompresses the given stream using the given strategy to cache the results and the given properties.

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
private java.io.InputStream	getInputStream()
void	mark(int limit)
boolean	markSupported()
static boolean	matches(byte[] signature, int length)	Checks if the signature matches what is expected for a pack200 file (0xCAFED00D).
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int count)
void	reset()
long	skip(long count)

Methods inherited from class kala.compress.compressors.CompressorInputStream

count, count, getBytesRead, getUncompressedCount, pushedBackBytes

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Field Detail

CAFE_DOOD

private static final byte[] CAFE_DOOD

SIG_LENGTH

private static final int SIG_LENGTH

originalInputStream

private final java.io.InputStream originalInputStream

abstractStreamBridge

private final AbstractStreamBridge abstractStreamBridge

Constructor Detail

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.File file)
                             throws java.io.IOException

Decompresses the given file, caching the decompressed data in memory.

Parameters:

file - the file to decompress

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.File file,
                                    java.util.Map<java.lang.String,java.lang.String> properties)
                             throws java.io.IOException

Decompresses the given file, caching the decompressed data in memory and using the given properties.

Parameters:

file - the file to decompress

properties - Pack200 properties to use

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.File file,
                                    Pack200Strategy mode)
                             throws java.io.IOException

Decompresses the given file using the given strategy to cache the results.

Parameters:

file - the file to decompress

mode - the strategy to use

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.File file,
                                    Pack200Strategy mode,
                                    java.util.Map<java.lang.String,java.lang.String> properties)
                             throws java.io.IOException

Decompresses the given file using the given strategy to cache the results and the given properties.

Parameters:

file - the file to decompress

mode - the strategy to use

properties - Pack200 properties to use

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.InputStream inputStream)
                             throws java.io.IOException

Decompresses the given stream, caching the decompressed data in memory.

When reading from a file the File-arg constructor may provide better performance.

Parameters:

inputStream - the InputStream from which this object should be created

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

private Pack200CompressorInputStream(java.io.InputStream inputStream,
                                     java.io.File file,
                                     Pack200Strategy mode,
                                     java.util.Map<java.lang.String,java.lang.String> properties)
                              throws java.io.IOException

Throws:

java.io.IOException

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.InputStream inputStream,
                                    java.util.Map<java.lang.String,java.lang.String> properties)
                             throws java.io.IOException

Decompresses the given stream, caching the decompressed data in memory and using the given properties.

When reading from a file the File-arg constructor may provide better performance.

Parameters:

inputStream - the InputStream from which this object should be created

properties - Pack200 properties to use

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.InputStream inputStream,
                                    Pack200Strategy mode)
                             throws java.io.IOException

Decompresses the given stream using the given strategy to cache the results.

When reading from a file the File-arg constructor may provide better performance.

Parameters:

inputStream - the InputStream from which this object should be created

mode - the strategy to use

Throws:

java.io.IOException - if reading fails

Pack200CompressorInputStream

public Pack200CompressorInputStream(java.io.InputStream inputStream,
                                    Pack200Strategy mode,
                                    java.util.Map<java.lang.String,java.lang.String> properties)
                             throws java.io.IOException

Decompresses the given stream using the given strategy to cache the results and the given properties.

When reading from a file the File-arg constructor may provide better performance.

Parameters:

inputStream - the InputStream from which this object should be created

mode - the strategy to use

properties - Pack200 properties to use

Throws:

java.io.IOException - if reading fails

Method Detail

matches

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

Checks if the signature matches what is expected for a pack200 file (0xCAFED00D).

Parameters:

signature - the bytes to check

length - the number of bytes to check

Returns:

true, if this stream is a pack200 compressed stream, false otherwise

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.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException

getInputStream

private java.io.InputStream getInputStream()
                                    throws java.io.IOException

Throws:

java.io.IOException

mark

public void mark(int limit)

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[] b)
         throws java.io.IOException

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

read

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

Overrides:

read in class java.io.InputStream

Throws:

java.io.IOException

reset

public void reset()
           throws java.io.IOException

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException

skip

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

Overrides:

skip in class java.io.InputStream

Throws:

java.io.IOException