org.tp23.jasper.servlet
Class JasperLoader

java.lang.Object
  |
  +--java.lang.ClassLoader
        |
        +--org.tp23.jasper.runtime.JspLoader
              |
              +--org.tp23.jasper.servlet.JasperLoader

Direct Known Subclasses:

JasperLoader12

public class JasperLoader

extends JspLoader

This is a class loader that loads JSP files as though they were Java classes. It calls the compiler to compile the JSP file into a servlet and then loads the generated class. This code is quite fragile and needs careful treatment/handling/revisiting. I know this doesn't work very well right now for: (a) inner classes (b) does not work at all for tag handlers that have inner classes; but that is likely to change with the new JSP PR2 spec.

Author:

Anil K. Vijendran, Harish Prabandham, Paul Hinds

Fields inherited from class org.tp23.jasper.runtime.JspLoader

jars, options, parent

Constructor Summary

JasperLoader()

Method Summary

protected java.lang.Class	defClass(java.lang.String className, byte[] classData) Just a short hand for defineClass now...
protected byte[]	doLoadClassDataFromFile(java.lang.String fileName) Load JSP class data from file, method may be called from within a doPriviledged if a SecurityManager is installed.
protected java.lang.Class	findClass(java.lang.String className)
java.net.URL	getResource(java.lang.String name)
java.io.InputStream	getResourceAsStream(java.lang.String name)
protected java.lang.Class	loadClass(java.lang.String name, boolean resolve)
protected byte[]	loadClassDataFromFile(java.lang.String fileName) Load JSP class data from file, method may be called from within a doPriviledged if a SecurityManager is installed.
void	setProtectionDomain(java.lang.Object pd)
java.lang.String	toString()

Methods inherited from class org.tp23.jasper.runtime.JspLoader

addJar, getClassPath, setOptions, setParentClassLoader

Methods inherited from class java.lang.ClassLoader

defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, resolveClass, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

JasperLoader

public JasperLoader()

Method Detail

setProtectionDomain

public void setProtectionDomain(java.lang.Object pd)

loadClass

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

Overrides:

loadClass in class java.lang.ClassLoader

getResourceAsStream

public java.io.InputStream getResourceAsStream(java.lang.String name)

Overrides:

getResourceAsStream in class java.lang.ClassLoader

getResource

public java.net.URL getResource(java.lang.String name)

Overrides:

getResource in class java.lang.ClassLoader

findClass

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

Overrides:

findClass in class java.lang.ClassLoader

defClass

protected java.lang.Class defClass(java.lang.String className,
                                   byte[] classData)

Just a short hand for defineClass now... I suspect we might need to make this public at some point of time.

loadClassDataFromFile

protected byte[] loadClassDataFromFile(java.lang.String fileName)

Load JSP class data from file, method may be called from within a doPriviledged if a SecurityManager is installed.

doLoadClassDataFromFile

protected byte[] doLoadClassDataFromFile(java.lang.String fileName)

Load JSP class data from file, method may be called from within a doPriviledged if a SecurityManager is installed.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object