Package org.wso2.carbon.ui

Class JspClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.wso2.carbon.ui.JspClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class JspClassLoader
extends URLClassLoader

Jasper requires that this class loader be an instance of URLClassLoader. At runtime it uses the URLClassLoader's getURLs method to find jar files that are in turn searched for TLDs. In a webapp these jar files would normally be located in WEB-INF/lib. In the OSGi context, this behaviour is provided by returning the URLs of the jar files contained on the Bundle-ClassPath. Other than jar file tld resources this classloader is not used for loading classes which should be done by the other contained class loaders.

The rest of the ClassLoader is as follows: 1) Thread-ContextClassLoader (top - parent) -- see ContextFinder 2) Jasper Bundle 3) The Bundle referenced at JSPServlet creation

Field Summary

Fields

Modifier and Type	Field	Description
protected ClassLoader	system	The system class loader.

Constructor Summary

Constructors

Constructor	Description
JspClassLoader(org.osgi.framework.Bundle bundle, PermissionCollection permissions)

Method Summary

Modifier and Type	Method	Description
protected Class	findClass(String name)
protected PermissionCollection	getPermissions(CodeSource codesource)
InputStream	getResourceAsStream(String name)
protected Class	loadClass(String name, boolean resolve)

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findResource, findResources, 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, getResource, getResources, 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

Field Detail

system

protected ClassLoader system

The system class loader.

Constructor Detail

JspClassLoader

public JspClassLoader(org.osgi.framework.Bundle bundle,
                      PermissionCollection permissions)

Method Detail

loadClass

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

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

findClass

protected Class findClass(String name)
                   throws ClassNotFoundException

Overrides:

findClass in class URLClassLoader

Throws:

ClassNotFoundException

getPermissions

protected PermissionCollection getPermissions(CodeSource codesource)

Overrides:

getPermissions in class URLClassLoader

getResourceAsStream

public InputStream getResourceAsStream(String name)

Overrides:

getResourceAsStream in class URLClassLoader