de.carne

Class ApplicationLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

de.carne.ApplicationLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public final class ApplicationLoader
extends java.net.URLClassLoader

Launcher class used to install a class loader making the jar file and it's contained jar files available for class loading.

Method Summary

Modifier and Type	Method and Description
static java.util.jar.JarFile	getCodeJar() Get the JarFile this application has been loaded from.
static java.net.URL	getDirectURL(java.net.URL u) Get the direct URL and remove a possibly existing resource re-direct.
java.lang.Class<?>	loadClass(java.lang.String name)
static void	main(java.lang.String[] args) Perform Classloader initialization and then invoke the actual main class.
static void	registerURLStreamHandlerFactory(java.lang.String protocol, java.net.URLStreamHandlerFactory factory) Register an additional URLStreamHandlerFactory.

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Method Detail

registerURLStreamHandlerFactory

public static void registerURLStreamHandlerFactory(java.lang.String protocol,
                                                   java.net.URLStreamHandlerFactory factory)

Register an additional URLStreamHandlerFactory.

Only one factory can be set per VM. Therefore this function is provided to add additional factories to the factory set by this loader.

Parameters:

protocol - The protocol to register the factory for.

factory - The URLStreamHandlerFactory to register.

getCodeJar

public static java.util.jar.JarFile getCodeJar()
                                        throws java.io.IOException

Get the JarFile this application has been loaded from.

Returns:

The JarFile or null if the application was not loaded from a release Jar.

Throws:

java.io.IOException - if an I/O error occurs while opening the Jar.

getDirectURL

public static java.net.URL getDirectURL(java.net.URL u)

Get the direct URL and remove a possibly existing resource re-direct.

By using this function the application can provide resource access via one of the JDK's standard URL handlers for code that cannot handle a custom URL handler.

Parameters:

u - The URL to get the direct URL.

Returns:

The native resource URL.

main

public static void main(java.lang.String[] args)

Perform Classloader initialization and then invoke the actual main class.

Parameters:

args - The program's command line.

loadClass

public java.lang.Class<?> loadClass(java.lang.String name)
                             throws java.lang.ClassNotFoundException

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException