Package org.pentaho.reporting.libraries.resourceloader.loader.resource

Class ClassloaderResourceLoader

java.lang.Object

org.pentaho.reporting.libraries.resourceloader.loader.resource.ClassloaderResourceLoader

All Implemented Interfaces:

ResourceLoader

public class ClassloaderResourceLoader
extends Object
implements ResourceLoader

Creation-Date: 05.04.2006, 14:40:59

Author:

Thomas Morgner

Field Summary

Fields

Modifier and Type	Field	Description
static String	SCHEMA_NAME

Constructor Summary

Constructors

Constructor	Description
ClassloaderResourceLoader()

Method Summary

Modifier and Type	Method	Description
ResourceKey	createKey(Object value, Map factoryKeys)	Creates a new resource key from the given object and the factory keys.
static String	createResourceKey(Class c, String resource)	A helper method to make it easier to create resource descriptions.
ResourceKey	deriveKey(ResourceKey parent, String path, Map factoryKeys)	Derives a new resource key from the given key.
ResourceKey	deserialize(ResourceKey bundleKey, String stringKey)	Parses the input string and returns a newly created ResourceKey based on the string data
boolean	isSupportedDeserializer(String data)	Determines if the resource loader is capable of deserializing the serialized version of the ResourceKey.
boolean	isSupportedKey(ResourceKey key)	Checks, whether this resource loader implementation was responsible for creating this key.
ResourceData	load(ResourceKey key)	Loads the binary data represented by this key.
String	serialize(ResourceKey bundleKey, ResourceKey key)	Creates a String version of the resource key that can be used to generate a new ResourceKey object via deserialization
URL	toURL(ResourceKey key)	Generates a URL version of the supplied ResourceKey.

Methods inherited from class java.lang.Object

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

Field Detail

SCHEMA_NAME

public static final String SCHEMA_NAME

Constructor Detail

ClassloaderResourceLoader

public ClassloaderResourceLoader()

Method Detail

isSupportedKey

public boolean isSupportedKey(ResourceKey key)

Checks, whether this resource loader implementation was responsible for creating this key.

Specified by:

isSupportedKey in interface ResourceLoader

Parameters:

key -

Returns:

createKey

public ResourceKey createKey(Object value,
                             Map factoryKeys)
                      throws ResourceKeyCreationException

Creates a new resource key from the given object and the factory keys.

Specified by:

createKey in interface ResourceLoader

Parameters:

value -

factoryKeys -

Returns:

the created key.

Throws:

ResourceKeyCreationException - if creating the key failed.

deriveKey

public ResourceKey deriveKey(ResourceKey parent,
                             String path,
                             Map factoryKeys)
                      throws ResourceKeyCreationException

Derives a new resource key from the given key. If neither a path nor new factory-keys are given, the parent key is returned.

Specified by:

deriveKey in interface ResourceLoader

Parameters:

parent - the parent

path - the derived path (can be null).

factoryKeys - the optional factory keys (can be null).

Returns:

the derived key.

Throws:

ResourceKeyCreationException - if the key cannot be derived for any reason.

toURL

public URL toURL(ResourceKey key)

Description copied from interface: ResourceLoader

Generates a URL version of the supplied ResourceKey.

Specified by:

toURL in interface ResourceLoader

Parameters:

key - the ResourceKey from which a URL will be created

Returns:

the URL representation of the ResourceKey

load

public ResourceData load(ResourceKey key)
                  throws ResourceLoadingException

Description copied from interface: ResourceLoader

Loads the binary data represented by this key.

Specified by:

load in interface ResourceLoader

Returns:

Throws:

ResourceLoadingException

createResourceKey

public static String createResourceKey(Class c,
                                       String resource)

A helper method to make it easier to create resource descriptions.

Parameters:

c -

resource -

Returns:

serialize

public String serialize(ResourceKey bundleKey,
                        ResourceKey key)
                 throws ResourceException

Creates a String version of the resource key that can be used to generate a new ResourceKey object via deserialization

Specified by:

serialize in interface ResourceLoader

Parameters:

bundleKey -

key -

Returns:

a String which is a serialized version of the ResourceKey

Throws:

ResourceException - indicates an error serializing the resource key

deserialize

public ResourceKey deserialize(ResourceKey bundleKey,
                               String stringKey)
                        throws ResourceKeyCreationException

Parses the input string and returns a newly created ResourceKey based on the string data

Specified by:

deserialize in interface ResourceLoader

stringKey - the String representation of the ResourceKey @return a ResourceKey which matches the String representation

Throws:

ResourceKeyCreationException - indicates an error occurred in the creation or deserialization of the ResourceKey

isSupportedDeserializer

public boolean isSupportedDeserializer(String data)

Description copied from interface: ResourceLoader

Determines if the resource loader is capable of deserializing the serialized version of the ResourceKey.

Specified by:

isSupportedDeserializer in interface ResourceLoader

Parameters:

data - the serialized version of the resource key

Returns:

true if this ResourceLoader is capable of deserializing the serialized version of this resource key, false otherwise.