org.pentaho.reporting.libraries.resourceloader.loader
Class URLResourceLoader

java.lang.Object
  extended by org.pentaho.reporting.libraries.resourceloader.loader.URLResourceLoader
All Implemented Interfaces:
ResourceLoader

public class URLResourceLoader
extends Object
implements ResourceLoader

Creation-Date: 05.04.2006, 15:32:36

Author:
Thomas Morgner

Field Summary
static String SCHEMA_NAME
           
 
Constructor Summary
URLResourceLoader()
           
 
Method Summary
 ResourceKey createKey(Object value, Map factoryKeys)
          Creates a new resource key from the given object and the factory keys.
 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
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

SCHEMA_NAME

public static final String SCHEMA_NAME
Constructor Detail

URLResourceLoader

public URLResourceLoader()
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

serialize

public 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

Specified by:
serialize in interface ResourceLoader
Parameters:
bundleKey -
key -
Returns:
a String which is a serialized version of the ResourceKey

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.