org.apache.ignite.osgi.classloaders

Class BundleDelegatingClassLoader

java.lang.Object

java.lang.ClassLoader

org.apache.ignite.osgi.classloaders.BundleDelegatingClassLoader

Direct Known Subclasses:

ContainerSweepClassLoader

public class BundleDelegatingClassLoader
extends ClassLoader

A ClassLoader implementation delegating to a given OSGi bundle, and to the specified ClassLoader as a fallback.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.osgi.framework.Bundle	bundle The bundle which loaded Ignite.
protected ClassLoader	clsLdr The fallback classloader, expected to be the ignite-core classloader.

Constructor Summary

Constructors

Constructor and Description
BundleDelegatingClassLoader(org.osgi.framework.Bundle bundle) Constructor.
BundleDelegatingClassLoader(org.osgi.framework.Bundle bundle, ClassLoader classLoader) Constructor.

Method Summary

Modifier and Type	Method and Description
protected ClassNotFoundException	classNotFoundException(String clsName) Builds a ClassNotFoundException.
protected Class<?>	findClass(String name)
protected URL	findResource(String name)
protected Enumeration	findResources(String name) Finds a given resource from within the bundle.
org.osgi.framework.Bundle	getBundle() Returns the Bundle to which this ClassLoader is associated.
protected Class<?>	loadClass(String name, boolean resolve) Loads a class trying the bundle first, falling back to the ClassLoader clsLdr.
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, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Field Detail

bundle

protected final org.osgi.framework.Bundle bundle

The bundle which loaded Ignite.

clsLdr

@GridToStringExclude
protected final ClassLoader clsLdr

The fallback classloader, expected to be the ignite-core classloader.

Constructor Detail

BundleDelegatingClassLoader

public BundleDelegatingClassLoader(org.osgi.framework.Bundle bundle)

Constructor.

Parameters:

bundle - The bundle

BundleDelegatingClassLoader

public BundleDelegatingClassLoader(org.osgi.framework.Bundle bundle,
                                   ClassLoader classLoader)

Constructor.

Parameters:

bundle - The bundle.

classLoader - Fallback classloader.

Method Detail

findClass

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

Overrides:

findClass in class ClassLoader

Throws:

ClassNotFoundException

findResource

protected URL findResource(String name)

Overrides:

findResource in class ClassLoader

findResources

protected Enumeration findResources(String name)
                             throws IOException

Finds a given resource from within the bundle.

Overrides:

findResources in class ClassLoader

Parameters:

name - The resource name.

Returns:

URLs of resources.

Throws:

IOException

loadClass

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

Loads a class trying the bundle first, falling back to the ClassLoader clsLdr.

Overrides:

loadClass in class ClassLoader

Parameters:

name - Class name.

resolve - true to resolve the class.

Returns:

The Class.

Throws:

ClassNotFoundException

getBundle

public org.osgi.framework.Bundle getBundle()

Returns the Bundle to which this ClassLoader is associated.

Returns:

The Bundle.

toString

public String toString()

Overrides:

toString in class Object

classNotFoundException

protected ClassNotFoundException classNotFoundException(String clsName)

Builds a ClassNotFoundException.

Parameters:

clsName - Class name.

Returns:

The exception.