org.nuxeo.common.utils

Class URLStreamHandlerFactoryInstaller

java.lang.Object

org.nuxeo.common.utils.URLStreamHandlerFactoryInstaller

public class URLStreamHandlerFactoryInstaller
extends Object

Used to force installation of URLStreamHandlerFactory as the default mechanism in Java is failing to set a new factory if one was already set.

This class provides the capability to stack any number of factories - each factory having precedence over the last one.

Thus, when querying for a URL protocol handler all factories will be asked in turn (from the newest one to the older one) until a stream handler is obtained.

Contains some code from Eclipse Framework class.

Author:

Bogdan Stefanescu

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	URLStreamHandlerFactoryInstaller.FactoryStack

Method Summary

Modifier and Type	Method and Description
protected static void	flush(Field factoryField)
static URLStreamHandlerFactoryInstaller.FactoryStack	getStack() Get the underlying stack.
static void	installURLStreamHandlerFactory(URLStreamHandlerFactory shf)
static void	resetURLStreamHandlers()
static void	uninstallURLStreamHandlerFactory()
static void	uninstallURLStreamHandlerFactory(URLStreamHandlerFactory shf)

Methods inherited from class java.lang.Object

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

Method Detail

installURLStreamHandlerFactory

public static void installURLStreamHandlerFactory(URLStreamHandlerFactory shf)

uninstallURLStreamHandlerFactory

public static void uninstallURLStreamHandlerFactory()

uninstallURLStreamHandlerFactory

public static void uninstallURLStreamHandlerFactory(URLStreamHandlerFactory shf)

flush

protected static void flush(Field factoryField)
                     throws IllegalArgumentException,
                            IllegalAccessException

Throws:

IllegalArgumentException

IllegalAccessException

resetURLStreamHandlers

public static void resetURLStreamHandlers()

getStack

public static URLStreamHandlerFactoryInstaller.FactoryStack getStack()

Get the underlying stack.

This should not be used to register/unregister factories (since it is not synchronized). To install / uninstall factories use the static method of that class.