org.eclipse.jetty.util.resource

Class EmptyResource

java.lang.Object

org.eclipse.jetty.util.resource.Resource

org.eclipse.jetty.util.resource.EmptyResource

All Implemented Interfaces:

Closeable, AutoCloseable, ResourceFactory

public class EmptyResource
extends Resource

EmptyResource Represents a resource that does does not refer to any file, url, jar etc.

Field Summary

Fields

Modifier and Type	Field and Description
static Resource	INSTANCE

Fields inherited from class org.eclipse.jetty.util.resource.Resource

__defaultUseCaches

Method Summary

Methods

Modifier and Type	Method and Description
Resource	addPath(String path) Returns the resource contained inside the current resource with the given name.
void	close() Release any temporary resources held by the resource.
boolean	delete() Deletes the given resource
boolean	exists() Returns true if the respresened resource exists.
File	getFile() Returns an File representing the given resource or NULL if this is not possible.
InputStream	getInputStream() Returns an input stream to the resource
String	getName() Returns the name of the resource
ReadableByteChannel	getReadableByteChannel() Returns an readable bytechannel to the resource or null if one is not available.
URL	getURL() Returns an URL representing the given resource
boolean	isContainedIn(Resource r)
boolean	isDirectory() Returns true if the respresenetd resource is a container/directory.
long	lastModified() Returns the last modified time
long	length() Return the length of the resource
String[]	list() Returns a list of resource names contained in the given resource The resource names are not URL encoded.
boolean	renameTo(Resource dest) Rename the given resource

Methods inherited from class org.eclipse.jetty.util.resource.Resource

copyTo, encode, finalize, getAlias, getAllResources, getAssociate, getDefaultUseCaches, getListHTML, getResource, getURI, getWeakETag, isContainedIn, newClassPathResource, newClassPathResource, newResource, newResource, newResource, newResource, newResource, newSystemResource, release, setAssociate, setDefaultUseCaches, toURL, writeTo

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final Resource INSTANCE

Method Detail

isContainedIn

public boolean isContainedIn(Resource r)
                      throws MalformedURLException

Specified by:

isContainedIn in class Resource

Throws:

MalformedURLException

close

public void close()

Description copied from class: Resource

Release any temporary resources held by the resource.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class Resource

exists

public boolean exists()

Description copied from class: Resource

Returns true if the respresened resource exists.

Specified by:

exists in class Resource

isDirectory

public boolean isDirectory()

Description copied from class: Resource

Returns true if the respresenetd resource is a container/directory. If the resource is not a file, resources ending with "/" are considered directories.

Specified by:

isDirectory in class Resource

lastModified

public long lastModified()

Description copied from class: Resource

Returns the last modified time

Specified by:

lastModified in class Resource

length

public long length()

Description copied from class: Resource

Return the length of the resource

Specified by:

length in class Resource

getURL

public URL getURL()

Description copied from class: Resource

Returns an URL representing the given resource

Specified by:

getURL in class Resource

getFile

public File getFile()
             throws IOException

Description copied from class: Resource

Returns an File representing the given resource or NULL if this is not possible.

Specified by:

getFile in class Resource

Throws:

IOException

getName

public String getName()

Description copied from class: Resource

Returns the name of the resource

Specified by:

getName in class Resource

getInputStream

public InputStream getInputStream()
                           throws IOException

Description copied from class: Resource

Returns an input stream to the resource

Specified by:

getInputStream in class Resource

Throws:

IOException

getReadableByteChannel

public ReadableByteChannel getReadableByteChannel()
                                           throws IOException

Description copied from class: Resource

Returns an readable bytechannel to the resource or null if one is not available.

Specified by:

getReadableByteChannel in class Resource

Throws:

IOException

delete

public boolean delete()
               throws SecurityException

Description copied from class: Resource

Deletes the given resource

Specified by:

delete in class Resource

Throws:

SecurityException

renameTo

public boolean renameTo(Resource dest)
                 throws SecurityException

Description copied from class: Resource

Rename the given resource

Specified by:

renameTo in class Resource

Throws:

SecurityException

list

public String[] list()

Description copied from class: Resource

Returns a list of resource names contained in the given resource The resource names are not URL encoded.

Specified by:

list in class Resource

addPath

public Resource addPath(String path)
                 throws IOException,
                        MalformedURLException

Description copied from class: Resource

Returns the resource contained inside the current resource with the given name.

Specified by:

addPath in class Resource

Parameters:

path - The path segment to add, which is not encoded

Throws:

IOException

MalformedURLException