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 java.lang.Object
implements ResourceLoader

Creation-Date: 05.04.2006, 14:40:59

Author:

Thomas Morgner

Constructor Summary

ClassloaderResourceLoader()

Method Summary

ResourceKey	createKey(java.lang.Object value, java.util.Map factoryKeys) Creates a new resource key from the given object and the factory keys.
static java.lang.String	createResourceKey(java.lang.Class c, java.lang.String resource) A helper method to make it easier to create resource descriptions.
ResourceKey	deriveKey(ResourceKey parent, java.lang.String path, java.util.Map factoryKeys) Derives a new resource key from the given key.
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.
java.net.URL	toURL(ResourceKey key)

Methods inherited from class java.lang.Object

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

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(java.lang.Object value,
                             java.util.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,
                             java.lang.String path,
                             java.util.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 java.net.URL toURL(ResourceKey key)

Specified by:

toURL in interface ResourceLoader

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 java.lang.String createResourceKey(java.lang.Class c,
                                                 java.lang.String resource)

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

Parameters:

c -

resource -

Returns: