org.picocontainer.defaults

Class CustomPermissionsURLClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.picocontainer.defaults.CustomPermissionsURLClassLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class CustomPermissionsURLClassLoader
extends java.net.URLClassLoader

CustomPermissionsURLClassLoader extends URLClassLoader, adding the abilty to programatically add permissions easily. To be effective for permission management, it should be run in conjunction with a policy that restricts some of the classloaders, but not all. It's not ordinarily used by PicoContainer, but is here because PicoContainer is common to most classloader trees.

Author:

Paul Hammant

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map	permissionsMap

Constructor Summary

Constructors

Constructor and Description
CustomPermissionsURLClassLoader(java.net.URL[] urls, java.util.Map permissionsMap, java.lang.ClassLoader parent)

Method Summary

Methods

Modifier and Type	Method and Description
private java.lang.ClassNotFoundException	decorateException(java.lang.String name, java.lang.ClassNotFoundException e)
protected java.lang.Class	findClass(java.lang.String name)
java.security.PermissionCollection	getPermissions(java.security.CodeSource codeSource)
java.lang.Class	loadClass(java.lang.String name)
java.lang.String	toString()

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findResource, findResources, 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, 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

permissionsMap

private final java.util.Map permissionsMap

Constructor Detail

CustomPermissionsURLClassLoader

public CustomPermissionsURLClassLoader(java.net.URL[] urls,
                               java.util.Map permissionsMap,
                               java.lang.ClassLoader parent)

Method Detail

loadClass

public java.lang.Class loadClass(java.lang.String name)
                          throws java.lang.ClassNotFoundException

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException

findClass

protected java.lang.Class findClass(java.lang.String name)
                             throws java.lang.ClassNotFoundException

Overrides:

findClass in class java.net.URLClassLoader

Throws:

java.lang.ClassNotFoundException

decorateException

private java.lang.ClassNotFoundException decorateException(java.lang.String name,
                                                 java.lang.ClassNotFoundException e)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getPermissions

public java.security.PermissionCollection getPermissions(java.security.CodeSource codeSource)

Overrides:

getPermissions in class java.net.URLClassLoader