org.apache.myfaces.commons.resourcehandler.resource
Class ResourceLoader

java.lang.Object
  org.apache.myfaces.commons.resourcehandler.resource.ResourceLoader

Direct Known Subclasses:

ClassLoaderResourceLoader, ExternalContextResourceLoader, ResourceLoaderWrapper

public abstract class ResourceLoader
extends Object

Base class for resource loaders. Resource loaders can lookup resources as URLs from arbitrary locations, including JAR files.

Version:

$Revision: 882702 $ $Date: 2009-11-20 15:16:07 -0500 (Vie, 20 Nov 2009) $

Author:

Leonardo Uribe (latest modification by $Author: lu4242 $)

Nested Class Summary

class

ResourceLoader.VersionComparator

Field Summary

static String

VERSION_INVALID

Constructor Summary

ResourceLoader(String prefix)

Method Summary

abstract ResourceMeta	createResourceMeta(String prefix, String libraryName, String libraryVersion, String resourceName, String resourceVersion)
abstract String	getLibraryVersion(String path) Return the max available version found (if exists) or return null if no version available.
String	getPrefix()
abstract InputStream	getResourceInputStream(ResourceMeta resourceMeta)
abstract URL	getResourceURL(ResourceMeta resourceMeta) Return the max available version found (if exists) or return null if no version available.
abstract String	getResourceVersion(String path)
protected Comparator<String>	getVersionComparator()
abstract boolean	libraryExists(String libraryName)
boolean	resourceExists(ResourceMeta resourceMeta)
void	setPrefix(String prefix)
protected void	setVersionComparator(Comparator<String> versionComparator)

Methods inherited from class java.lang.Object

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

Field Detail

VERSION_INVALID

public static final String VERSION_INVALID

See Also:

Constant Field Values

Constructor Detail

ResourceLoader

public ResourceLoader(String prefix)

Method Detail

getResourceVersion

public abstract String getResourceVersion(String path)

getLibraryVersion

public abstract String getLibraryVersion(String path)

Return the max available version found (if exists) or return null if no version available.

getResourceURL

public abstract URL getResourceURL(ResourceMeta resourceMeta)

Return the max available version found (if exists) or return null if no version available.

getResourceInputStream

public abstract InputStream getResourceInputStream(ResourceMeta resourceMeta)

createResourceMeta

public abstract ResourceMeta createResourceMeta(String prefix,
                                                String libraryName,
                                                String libraryVersion,
                                                String resourceName,
                                                String resourceVersion)

libraryExists

public abstract boolean libraryExists(String libraryName)

resourceExists

public boolean resourceExists(ResourceMeta resourceMeta)

getVersionComparator

protected Comparator<String> getVersionComparator()

setVersionComparator

protected void setVersionComparator(Comparator<String> versionComparator)

getPrefix

public String getPrefix()

setPrefix

public void setPrefix(String prefix)