org.apache.catalina.webresources

Class TomcatURLStreamHandlerFactory

java.lang.Object

org.apache.catalina.webresources.TomcatURLStreamHandlerFactory

All Implemented Interfaces:

URLStreamHandlerFactory

public class TomcatURLStreamHandlerFactory
extends Object
implements URLStreamHandlerFactory

Method Summary

Modifier and Type	Method and Description
void	addUserFactory(URLStreamHandlerFactory factory) Since the JVM only allows a single call to URL.setURLStreamHandlerFactory(URLStreamHandlerFactory) and Tomcat needs to register a handler, provide a mechanism to allow applications to register their own handlers.
URLStreamHandler	createURLStreamHandler(String protocol)
static boolean	disable() Prevent this this factory from registering with the JVM.
static TomcatURLStreamHandlerFactory	getInstance() Obtain a reference to the singleton instance.
boolean	isRegistered()
static boolean	register() Register this factory with the JVM.
static void	release(ClassLoader classLoader) Release references to any user provided factories that have been loaded using the provided class loader.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static TomcatURLStreamHandlerFactory getInstance()

Obtain a reference to the singleton instance. It is recommended that callers check the value of isRegistered() before using the returned instance.

Returns:

A reference to the singleton instance

register

public static boolean register()

Register this factory with the JVM. May be called more than once. The implementation ensures that registration only occurs once.

Returns:

true if the factory is already registered with the JVM or was successfully registered as a result of this call. false if the factory was disabled prior to this call.

disable

public static boolean disable()

Prevent this this factory from registering with the JVM. May be called more than once.

Returns:

true if the factory is already disabled or was successfully disabled as a result of this call. false if the factory was already registered prior to this call.

release

public static void release(ClassLoader classLoader)

Release references to any user provided factories that have been loaded using the provided class loader. Called during web application stop to prevent memory leaks.

Parameters:

classLoader - The class loader to release

isRegistered

public boolean isRegistered()

addUserFactory

public void addUserFactory(URLStreamHandlerFactory factory)

Since the JVM only allows a single call to URL.setURLStreamHandlerFactory(URLStreamHandlerFactory) and Tomcat needs to register a handler, provide a mechanism to allow applications to register their own handlers.

Parameters:

factory - The user provided factory to add to the factories Tomcat has already registered

createURLStreamHandler

public URLStreamHandler createURLStreamHandler(String protocol)

Specified by:

createURLStreamHandler in interface URLStreamHandlerFactory