Class CompressorProvider

java.lang.Object

nom.tam.fits.compression.provider.CompressorProvider

All Implemented Interfaces:

ICompressorProvider

public class CompressorProvider
extends Object
implements ICompressorProvider

Standard implementation of the ICompressorProvider interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	CompressorProvider.TileCompressorControl	private implementation of the tile compression provider, all is based on the option based constructor of the compressors.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Class<?>[][]	AVAILABLE_COMPRESSORS
private static final Logger	LOG	logger to log to.
private static final CompressorControlNameComputer	NAME_COMPUTER
private static final ICompressOption	NULL_OPTION
private static final ICompressParameters	NULL_PARAMETERS

Constructor Summary

Constructors

Constructor	Description
CompressorProvider()

Method Summary

Modifier and Type	Method	Description
ICompressorControl	createCompressorControl(String quantAlgorithm, String compressionAlgorithm, Class<?> baseType)
static ICompressorControl	findCompressorControl(String quantAlgorithm, String compressionAlgorithm, Class<?> baseType)

Methods inherited from class Object

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

Field Details

NULL_OPTION

private static final ICompressOption NULL_OPTION

NULL_PARAMETERS

private static final ICompressParameters NULL_PARAMETERS

AVAILABLE_COMPRESSORS

private static final Class<?>[][] AVAILABLE_COMPRESSORS

NAME_COMPUTER

private static final CompressorControlNameComputer NAME_COMPUTER

LOG

private static final Logger LOG

logger to log to.

Constructor Details

CompressorProvider

public CompressorProvider()

Method Details

findCompressorControl

public static ICompressorControl findCompressorControl(String quantAlgorithm,
 String compressionAlgorithm,
 Class<?> baseType)

createCompressorControl

public ICompressorControl createCompressorControl(String quantAlgorithm,
 String compressionAlgorithm,
 Class<?> baseType)

Specified by:

createCompressorControl in interface ICompressorProvider

Parameters:

quantAlgorithm - the quantification algorithm to use or null if none

compressionAlgorithm - the compression algorithm to use

baseType - the base type of the data to (de)compress.

Returns:

the ICompressorControl to use for the specified quantize and compression algorithms and base type.