Package eu.cloudnetservice.driver.module

Class ModuleURLClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

eu.cloudnetservice.driver.module.ModuleURLClassLoader

All Implemented Interfaces:

InjectionLayerHolder<dev.derklaro.aerogel.SpecifiedInjector>, Closeable, AutoCloseable

@Internal
public class ModuleURLClassLoader
extends URLClassLoader
implements InjectionLayerHolder<dev.derklaro.aerogel.SpecifiedInjector>

This module url class loader is a unique url class loader for each module. Loading a class using this ClassLoader ensures that all other modules have access to the loaded class too.

Since:

4.0

See Also:

• Module

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Lock	CLASS_LOADING_LOCK	All loaders which were created and of which the associated module is still loaded.
protected final InjectionLayer<dev.derklaro.aerogel.SpecifiedInjector>	injectionLayer
protected static final Set<ModuleURLClassLoader>	LOADERS

Constructor Summary

Constructors

Constructor	Description
ModuleURLClassLoader(@NonNull URL moduleFileUrl, @NonNull Set<URL> moduleDependencyUrls, @NonNull InjectionLayer<dev.derklaro.aerogel.SpecifiedInjector> injectionLayer)	Creates an instance of this FinalizeURLClassLoader.

Method Summary

Modifier and Type	Method	Description
void	close()
@NonNull InjectionLayer<dev.derklaro.aerogel.SpecifiedInjector>	injectionLayer()	Get the injection layer associated with this holder.
protected @NonNull Class<?>	loadClass(String name, boolean resolve)
protected @NonNull Class<?>	loadClass(String name, boolean resolve, boolean global)	Tries to load a class by the provided name.
void	registerGlobally()	Registers this loader to all loaders.

Methods inherited from class java.net.URLClassLoader

addURL, 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, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Field Details

CLASS_LOADING_LOCK

protected static final Lock CLASS_LOADING_LOCK

All loaders which were created and of which the associated module is still loaded.

LOADERS

protected static final Set<ModuleURLClassLoader> LOADERS

injectionLayer

protected final InjectionLayer<dev.derklaro.aerogel.SpecifiedInjector> injectionLayer

Constructor Details

ModuleURLClassLoader

public ModuleURLClassLoader(@NonNull
 @NonNull URL moduleFileUrl,
 @NonNull
 @NonNull Set<URL> moduleDependencyUrls,
 @NonNull
 @NonNull InjectionLayer<dev.derklaro.aerogel.SpecifiedInjector> injectionLayer)

Creates an instance of this FinalizeURLClassLoader.

Parameters:

moduleFileUrl - the module file to which this loader is associated.

moduleDependencyUrls - all dependencies which were loaded for the module.

injectionLayer - the injection layer for the module associated with this loader.

Throws:

NullPointerException - if moduleFileUrl or moduleDependencyUrls is null.

Method Details

registerGlobally

public void registerGlobally()

Registers this loader to all loaders. This causes all other instances of this class to search for classes in this loader too.

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class URLClassLoader

Throws:

IOException

loadClass

@NonNull
protected @NonNull Class<?> loadClass(String name,
 boolean resolve)
                               throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

injectionLayer

@NonNull
public @NonNull InjectionLayer<dev.derklaro.aerogel.SpecifiedInjector> injectionLayer()

Get the injection layer associated with this holder.

Specified by:

injectionLayer in interface InjectionLayerHolder<dev.derklaro.aerogel.SpecifiedInjector>

Returns:

the injection layer of this holder.

loadClass

@NonNull
protected @NonNull Class<?> loadClass(String name,
 boolean resolve,
 boolean global)
                               throws ClassNotFoundException

Tries to load a class by the provided name.

Parameters:

name - the name of the class to load.

resolve - if the class should be resolved.

global - if all loaders registered in LOADERS should be checked.

Returns:

The resulting Class object

Throws:

ClassNotFoundException - if the class could not be found