org.mule.modules.sparksql.cl

Class UrlDelegatingCl

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.mule.modules.sparksql.cl.UrlDelegatingCl

All Implemented Interfaces:

Closeable, AutoCloseable

public class UrlDelegatingCl
extends URLClassLoader

An utility class to execute under a diferent classloader. This classloader, has principal URLClassLoader made of the URLs of the sources containing the classes passed on the "create" method, and a reference classloader with the ability to change.
Thread Safe.

Author:

j.penalba@mnemo.com

Field Summary

Fields

Modifier and Type	Field and Description
protected ClassLoader	parent
protected URL[]	urls

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	UrlDelegatingCl(URL[] urls, ClassLoader parent)

Method Summary

Modifier and Type	Method and Description
static UrlDelegatingCl	create(Class<?>[] classOnJar, ClassLoader parent) Create a new instance of the runner that contains a classloader with the sources for the classes at "classOnJar".
void	run(Runnable r) Run "r" on a classloader that contains the sources for the classes passed on the "create" method and delegated to current ContextClassLoader.
String	toString()

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, 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

parent

protected ClassLoader parent

urls

protected URL[] urls

Constructor Detail

UrlDelegatingCl

protected UrlDelegatingCl(URL[] urls,
                          ClassLoader parent)

Method Detail

create

public static UrlDelegatingCl create(Class<?>[] classOnJar,
                                     ClassLoader parent)

Create a new instance of the runner that contains a classloader with the sources for the classes at "classOnJar".

Parameters:

classOnJar - class name to find the source

parent - the parent class loader for delegation

Returns:

UrlDelegatingCl

run

public void run(Runnable r)

Run "r" on a classloader that contains the sources for the classes passed on the "create" method and delegated to current ContextClassLoader.
Thread Safe.

Parameters:

r - the Runnable

toString

public String toString()

Overrides:

toString in class Object