org.mule.runtime.deployment.model.internal.tooling

Class ToolingArtifactClassLoader

java.lang.Object

org.mule.runtime.deployment.model.internal.tooling.ToolingArtifactClassLoader

All Implemented Interfaces:

ArtifactClassLoader, ClassLoaderLookupPolicyProvider, DisposableClassLoader, LocalResourceLocator

public class ToolingArtifactClassLoader
extends Object
implements ArtifactClassLoader

Tooling ClassLoader that will delegate every call to it's delegate (the specific org.eclipse.aether.artifact.Artifact under delegateArtifactClassLoader, but when doing the dispose() it will dispatch to the RegionClassLoader pointed by regionClassLoader that contains all the related class loaders in it.

Since:

4.0

Constructor Summary

Constructors

Constructor and Description
ToolingArtifactClassLoader(RegionClassLoader regionClassLoader, ArtifactClassLoader delegateArtifactClassLoader) Generates an instance of an ArtifactClassLoader if the parametrized regionClassLoader does contain within its RegionClassLoader.getArtifactPluginClassLoaders() the class loader responsible of handling the artifactPluginDescriptor.

Method Summary

Modifier and Type	Method and Description
void	addShutdownListener(ShutdownListener listener)
void	dispose() We want tooling believe the ArtifactClassLoader he's handling is the plugin's or application's one, but we are actually shipping more than that with the RegionClassLoader.
Class<?>	findLocalClass(String name)
URL	findLocalResource(String resourceName)
URL	findResource(String resource)
Enumeration<URL>	findResources(String name)
<T extends ArtifactDescriptor> T	getArtifactDescriptor()
String	getArtifactId()
List<ArtifactClassLoader>	getArtifactPluginClassLoaders()
ClassLoader	getClassLoader()
ClassLoaderLookupPolicy	getClassLoaderLookupPolicy()
RegionClassLoader	getRegionClassLoader()

Methods inherited from class java.lang.Object

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

Constructor Detail

ToolingArtifactClassLoader

public ToolingArtifactClassLoader(RegionClassLoader regionClassLoader,
                                  ArtifactClassLoader delegateArtifactClassLoader)

Generates an instance of an ArtifactClassLoader if the parametrized regionClassLoader does contain within its RegionClassLoader.getArtifactPluginClassLoaders() the class loader responsible of handling the artifactPluginDescriptor.

Parameters:

regionClassLoader - class loader used to execute the dispose() properly.

delegateArtifactClassLoader - ArtifactClassLoader where this classloader should delegate.

Method Detail

getArtifactPluginClassLoaders

public List<ArtifactClassLoader> getArtifactPluginClassLoaders()

Returns:

List for ArtifactClassLoader for the plugins of the region.

getRegionClassLoader

public RegionClassLoader getRegionClassLoader()

Returns:

RegionClassLoader that this artifact class loader belongs too.

getArtifactId

public String getArtifactId()

Specified by:

getArtifactId in interface ArtifactClassLoader

getArtifactDescriptor

public <T extends ArtifactDescriptor> T getArtifactDescriptor()

Specified by:

getArtifactDescriptor in interface ArtifactClassLoader

findResource

public URL findResource(String resource)

Specified by:

findResource in interface ArtifactClassLoader

findResources

public Enumeration<URL> findResources(String name)
                               throws IOException

Specified by:

findResources in interface ArtifactClassLoader

Throws:

IOException

findLocalClass

public Class<?> findLocalClass(String name)
                        throws ClassNotFoundException

Specified by:

findLocalClass in interface ArtifactClassLoader

Throws:

ClassNotFoundException

getClassLoader

public ClassLoader getClassLoader()

Specified by:

getClassLoader in interface ArtifactClassLoader

addShutdownListener

public void addShutdownListener(ShutdownListener listener)

Specified by:

addShutdownListener in interface ArtifactClassLoader

getClassLoaderLookupPolicy

public ClassLoaderLookupPolicy getClassLoaderLookupPolicy()

Specified by:

getClassLoaderLookupPolicy in interface ClassLoaderLookupPolicyProvider

findLocalResource

public URL findLocalResource(String resourceName)

Specified by:

findLocalResource in interface LocalResourceLocator

dispose

public void dispose()

We want tooling believe the ArtifactClassLoader he's handling is the plugin's or application's one, but we are actually shipping more than that with the RegionClassLoader.

So, to avoid any leaks the dispose() of the plugin's ArtifactClassLoader is actually the one for the RegionClassLoader, which will eventually execute a dispose() over the plugin's or application's one.

Specified by:

dispose in interface DisposableClassLoader