org.omnifaces.resourcehandler

Class DefaultResourceHandler

java.lang.Object

javax.faces.application.ResourceHandler

javax.faces.application.ResourceHandlerWrapper

org.omnifaces.resourcehandler.DefaultResourceHandler

All Implemented Interfaces:

FacesWrapper<ResourceHandler>

Direct Known Subclasses:

CDNResourceHandler, CombinedResourceHandler, GraphicResourceHandler, OmniVersionResourceHandler, UnmappedResourceHandler

public abstract class DefaultResourceHandler
extends ResourceHandlerWrapper

A default ResourceHandler implementation which hooks on all three createResource(String), createResource(String, String) and createResource(String, String, String) methods. Implementors should only need to override either getLibraryName() and createResourceFromLibrary(String, String), or decorateResource(Resource).

Since:

2.0

Author:

Bauke Scholtz

Field Summary

Fields

Modifier and Type	Field and Description
static String	RES_NOT_FOUND

Fields inherited from class javax.faces.application.ResourceHandler

LOCALE_PREFIX, RESOURCE_CONTRACT_XML, RESOURCE_EXCLUDES_DEFAULT_VALUE, RESOURCE_EXCLUDES_PARAM_NAME, RESOURCE_IDENTIFIER, WEBAPP_CONTRACTS_DIRECTORY_PARAM_NAME, WEBAPP_RESOURCES_DIRECTORY_PARAM_NAME

Constructor Summary

Constructors

Constructor and Description
DefaultResourceHandler(ResourceHandler wrapped) Creates a new instance of this default resource handler which wraps the given resource handler.

Method Summary

Modifier and Type	Method and Description
Resource	createResource(String resourceName) Delegate to decorateResource(Resource, String, String) with result of createResource(String) from the wrapped resource handler.
Resource	createResource(String resourceName, String libraryName) If library name is not null and it equals getLibraryName(), then delegate to createResourceFromLibrary(String, String) with null as content type, else delegate to decorateResource(Resource, String, String) with result of createResource(String, String) from the wrapped resource handler.
Resource	createResource(String resourceName, String libraryName, String contentType) If library name is not null and it equals getLibraryName(), then delegate to createResourceFromLibrary(String, String), else delegate to decorateResource(Resource, String, String) with result of createResource(String, String, String) from the wrapped resource handler.
Resource	createResourceFromLibrary(String resourceName, String contentType) Returns the library-specific resource in case a resource from specifically the library name as identified by getLibraryName() is requested.
Resource	decorateResource(Resource resource) Decorate the given resource.
Resource	decorateResource(Resource resource, String resourceName, String libraryName) Decorate the given resource.
String	getLibraryName() Returns the library name on which this resource handler implementation should listen.
ResourceHandler	getWrapped()

Methods inherited from class javax.faces.application.ResourceHandlerWrapper

createResourceFromId, createViewResource, getRendererTypeForResourceName, handleResourceRequest, isResourceRequest, isResourceURL, libraryExists

Methods inherited from class java.lang.Object

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

Field Detail

RES_NOT_FOUND

public static final String RES_NOT_FOUND

See Also:

Constant Field Values

Constructor Detail

DefaultResourceHandler

public DefaultResourceHandler(ResourceHandler wrapped)

Creates a new instance of this default resource handler which wraps the given resource handler.

Parameters:

wrapped - The resource handler to be wrapped.

Method Detail

createResource

public Resource createResource(String resourceName)

Delegate to decorateResource(Resource, String, String) with result of createResource(String) from the wrapped resource handler.

Implementors should not override this.

Overrides:

createResource in class ResourceHandlerWrapper

createResource

public Resource createResource(String resourceName,
                               String libraryName)

If library name is not null and it equals getLibraryName(), then delegate to createResourceFromLibrary(String, String) with null as content type, else delegate to decorateResource(Resource, String, String) with result of createResource(String, String) from the wrapped resource handler.

Implementors should not override this.

Overrides:

createResource in class ResourceHandlerWrapper

createResource

public Resource createResource(String resourceName,
                               String libraryName,
                               String contentType)

If library name is not null and it equals getLibraryName(), then delegate to createResourceFromLibrary(String, String), else delegate to decorateResource(Resource, String, String) with result of createResource(String, String, String) from the wrapped resource handler.

Implementors should not override this.

Overrides:

createResource in class ResourceHandlerWrapper

getLibraryName

public String getLibraryName()

Returns the library name on which this resource handler implementation should listen. If a resource from specifically this library name is requested, then createResourceFromLibrary(String, String) will be called to create the resource, else decorateResource(Resource) will be called with result of the call from the wrapped resource handler.

The default implementation returns null.

Returns:

The library name on which this resource handler implementation should listen.

createResourceFromLibrary

public Resource createResourceFromLibrary(String resourceName,
                                          String contentType)

Returns the library-specific resource in case a resource from specifically the library name as identified by getLibraryName() is requested.

The default implementation returns null.

Parameters:

resourceName - The resource name.

contentType - The content type.

Returns:

The library-specific resource.

decorateResource

public Resource decorateResource(Resource resource,
                                 String resourceName,
                                 String libraryName)

Decorate the given resource. This will only be called if no library-specific resource has been requested.

The default implementation delegates to decorateResource(Resource).

Parameters:

resource - The resource to be decorated.

resourceName - The resource name.

libraryName - The library name.

Returns:

The decorated resource.

Since:

2.6

decorateResource

public Resource decorateResource(Resource resource)

Decorate the given resource. This will only be called if no library-specific resource has been requested.

The default implementation just returns the given resource unmodified.

Parameters:

resource - The resource to be decorated.

Returns:

The decorated resource.

getWrapped

public ResourceHandler getWrapped()

Specified by:

getWrapped in interface FacesWrapper<ResourceHandler>

Overrides:

getWrapped in class ResourceHandlerWrapper