org.eclipse.jetty.util.resource

Class JarResource

java.lang.Object

org.eclipse.jetty.util.resource.Resource

org.eclipse.jetty.util.resource.URLResource

org.eclipse.jetty.util.resource.JarResource

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, ResourceFactory

Direct Known Subclasses:

JarFileResource, SelectiveJarResource

public class JarResource
extends URLResource

Field Summary

Fields

Modifier and Type	Field and Description
protected java.net.JarURLConnection	_jarConnection

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

_connection, _in, _url, _urlString

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

__defaultUseCaches

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JarResource(java.net.URL url)
protected	JarResource(java.net.URL url, boolean useCaches)

Method Summary

Modifier and Type	Method and Description
protected boolean	checkConnection()
void	close() Release any resources held by the resource.
void	copyTo(java.io.File directory) Copy the Resource to the new destination file.
boolean	exists() Returns true if the represented resource exists.
java.io.File	getFile() Returns an File representing the given resource or NULL if this is not possible.
java.io.InputStream	getInputStream() Returns an input stream to the resource.
protected void	newConnection()
static Resource	newJarResource(Resource resource)

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

addPath, delete, equals, getInputStream, getName, getReadableByteChannel, getURL, getUseCaches, hashCode, isContainedIn, isDirectory, lastModified, length, list, renameTo, toString

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

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

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Field Detail

_jarConnection

protected java.net.JarURLConnection _jarConnection

Constructor Detail

JarResource

protected JarResource(java.net.URL url)

JarResource

protected JarResource(java.net.URL url,
                      boolean useCaches)

Method Detail

close

public void close()

Description copied from class: URLResource

Release any resources held by the resource.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class URLResource

checkConnection

protected boolean checkConnection()

Overrides:

checkConnection in class URLResource

newConnection

protected void newConnection()
                      throws java.io.IOException

Throws:

java.io.IOException - Sub-classes of JarResource may throw an IOException (or subclass)

exists

public boolean exists()

Returns true if the represented resource exists.

Overrides:

exists in class URLResource

Returns:

true if the represented resource exists.

getFile

public java.io.File getFile()
                     throws java.io.IOException

Description copied from class: URLResource

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

Overrides:

getFile in class URLResource

Returns:

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

Throws:

java.io.IOException - if unable to get the resource due to permissions

getInputStream

public java.io.InputStream getInputStream()
                                   throws java.io.IOException

Description copied from class: URLResource

Returns an input stream to the resource. The underlying url connection will be nulled out to prevent re-use.

Overrides:

getInputStream in class URLResource

Returns:

an input stream to the resource

Throws:

java.io.IOException - if unable to open the input stream

copyTo

public void copyTo(java.io.File directory)
            throws java.io.IOException

Description copied from class: Resource

Copy the Resource to the new destination file.

Will not replace existing destination file.

Overrides:

copyTo in class Resource

Parameters:

directory - the destination file to create

Throws:

java.io.IOException - if unable to copy the resource

newJarResource

public static Resource newJarResource(Resource resource)
                               throws java.io.IOException

Throws:

java.io.IOException