de.skuzzle.tinyplugz.internal

Class DelegateClassLoader

java.lang.Object

java.lang.ClassLoader

de.skuzzle.tinyplugz.internal.DelegateClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public final class DelegateClassLoader
extends ClassLoader
implements Closeable

This ClassLoader allows the application to access classes and resources from any loaded plugin.

Author:

Simon Taddiken

Method Summary

Modifier and Type	Method and Description
void	close()
protected Class<?>	findClass(String name)
protected URL	findResource(String name)
protected Enumeration<URL>	findResources(String name)
static DelegateClassLoader	forPlugins(Stream<URL> urls, ClassLoader appClassLoader) Creates a new ClassLoader which provides access to all plugins given by the collection of URLs.
Collection<PluginInformation>	getInformation() Information about all loaded plugins.
String	toString()

Methods inherited from class java.lang.ClassLoader

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

Methods inherited from class java.lang.Object

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

Method Detail

forPlugins

public static DelegateClassLoader forPlugins(Stream<URL> urls,
                                             ClassLoader appClassLoader)

Creates a new ClassLoader which provides access to all plugins given by the collection of URLs.

Parameters:

urls - The URLs, each pointing to a plugin to be loaded.

appClassLoader - The ClassLoader to use as parent.

Returns:

The created ClassLoader.

getInformation

public final Collection<PluginInformation> getInformation()

Information about all loaded plugins.

Returns:

A read-only collection of plugin information.

findClass

protected final Class<?> findClass(String name)
                            throws ClassNotFoundException

Overrides:

findClass in class ClassLoader

Throws:

ClassNotFoundException

findResource

protected final URL findResource(String name)

Overrides:

findResource in class ClassLoader

findResources

protected final Enumeration<URL> findResources(String name)
                                        throws IOException

Overrides:

findResources in class ClassLoader

Throws:

IOException

close

public final void close()
                 throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

toString

public final String toString()

Overrides:

toString in class Object