org.vast.codec

Class DecompressionRegistry

java.lang.Object

org.vast.codec.DecompressionRegistry

public class DecompressionRegistry
extends Object

This class allows to keep track of what classes to use to decompress streams, e.g. JPEG, JPEG2K...

Since:

Sep 15, 2008

Author:

Gregoire Berthiau

Field Summary

Fields

Modifier and Type	Field and Description
protected static Hashtable<String,Class<?>>	readerClasses

Constructor Summary

Constructors

Constructor and Description
DecompressionRegistry()

Method Summary

Methods

Modifier and Type	Method and Description
static void	addReaderClass(String compressionType, String className) Registers a reader class for given compression type
static Object	createReader(String compressionType) Instantiates a reader object for the specified compression type
static Class<?>	getReaderClass(String compressionType) Retrieves a registered reader class
static void	loadMaps(String xmlFileUrl, boolean replace) Loads an xml file containing mappings from types of readers/writers to class

Methods inherited from class java.lang.Object

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

Field Detail

readerClasses

protected static Hashtable<String,Class<?>> readerClasses

Constructor Detail

DecompressionRegistry

public DecompressionRegistry()

Method Detail

createReader

public static Object createReader(String compressionType)
                           throws IllegalStateException

Instantiates a reader object for the specified compression type

Parameters:

compressionType -

Returns:

new reader instance

Throws:

IllegalStateException

addReaderClass

public static void addReaderClass(String compressionType,
                  String className)
                           throws IllegalStateException

Registers a reader class for given compression type

Parameters:

compressionType -

className -

Throws:

IllegalStateException

getReaderClass

public static Class<?> getReaderClass(String compressionType)

Retrieves a registered reader class

Parameters:

compressionType -

Returns:

reader class or null if none found

loadMaps

public static void loadMaps(String xmlFileUrl,
            boolean replace)

Loads an xml file containing mappings from types of readers/writers to class

Parameters:

xmlFileUrl -

replace -