Package org.apache.druid.guice

Class StandardURLClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.apache.druid.guice.StandardURLClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

ExtensionFirstClassLoader

public class StandardURLClassLoader
extends URLClassLoader

The ClassLoader that gets used when druid.extensions.useExtensionClassloaderFirst = false.

Constructor Summary

Constructors

Constructor	Description
StandardURLClassLoader(URL[] urls, ClassLoader druidLoader, List<ClassLoader> extensionDependencyClassLoaders)

Method Summary

Modifier and Type	Method	Description
protected void	addExtensionResources(String name, List<URL> urls)
List<ClassLoader>	getExtensionDependencyClassLoaders()
URL	getResource(String name)
protected URL	getResourceFromExtensionsDependencies(String name)
Enumeration<URL>	getResources(String name)
protected Class<?>	loadClass(String name, boolean resolve)
protected Class<?>	loadClassFromExtensionDependencies(String name)

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, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, 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

Constructor Details

StandardURLClassLoader

public StandardURLClassLoader(URL[] urls,
 ClassLoader druidLoader,
 List<ClassLoader> extensionDependencyClassLoaders)

Method Details

loadClass

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

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

getResource

public URL getResource(String name)

Overrides:

getResource in class ClassLoader

getResources

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

Overrides:

getResources in class ClassLoader

Throws:

IOException

getResourceFromExtensionsDependencies

protected URL getResourceFromExtensionsDependencies(String name)

loadClassFromExtensionDependencies

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

Throws:

ClassNotFoundException

addExtensionResources

protected void addExtensionResources(String name,
 List<URL> urls)
                              throws IOException

Throws:

IOException

getExtensionDependencyClassLoaders

public List<ClassLoader> getExtensionDependencyClassLoaders()