Class CachedJarFileCallback

java.lang.Object

net.sourceforge.jnlp.runtime.CachedJarFileCallback

public final class CachedJarFileCallback
extends Object

Invoked by URLJarFile to get a JarFile corresponding to a URL. Large parts of this class are based on JarFileFactory and URLJarFile. Hooked in reflectively: sun.net.www.protocol.jar.URLJarFileCallBack is gone in newer JDKs.

Field Summary

Fields

Modifier and Type	Field	Description
private static final CachedJarFileCallback	INSTANCE
private static final Logger	LOG
private final Map<UrlKey,URL>	mapping

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CachedJarFileCallback()

Method Summary

Modifier and Type	Method	Description
void	addMapping(URL remoteUrl, URL localUrl)
private JarFile	cacheJarFile(URL url)
static CachedJarFileCallback	getInstance()
static void	register()	Registers this as URLJarFile callback.
JarFile	retrieve(URL url)

Methods inherited from class Object

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

Field Details

LOG

private static final Logger LOG

INSTANCE

private static final CachedJarFileCallback INSTANCE

mapping

private final Map<UrlKey,URL> mapping

Constructor Details

CachedJarFileCallback

private CachedJarFileCallback()

Method Details

getInstance

public static CachedJarFileCallback getInstance()

addMapping

public void addMapping(URL remoteUrl,
 URL localUrl)

register

public static void register()

Registers this as URLJarFile callback. No-op on JDKs without URLJarFileCallBack; remote jar: URLs are then fetched by the JDK itself, bypassing the ITW cache.

retrieve

public JarFile retrieve(URL url)
                 throws IOException

Throws:

IOException

cacheJarFile

private JarFile cacheJarFile(URL url)
                      throws IOException

Throws:

IOException