org.jmlspecs.racwrap.runner
Class ChxClassLoader

java.lang.Object
  java.lang.ClassLoader
      org.jmlspecs.racwrap.runner.ChxClassLoader

public class ChxClassLoader

extends ClassLoader

ChxClassLoader is the custom classloader that will load the wrapper classes when needed.

Nested Class Summary

 

Nested classes inherited from class java.lang.ClassLoader

 

Field Summary
private  Hashtable	classes
private  Hashtable	tree

 

Fields inherited from class java.lang.ClassLoader

 

Constructor Summary

ChxClassLoader(Node root)           Constructor.

 

Method Summary
private  byte[]	getByteArray(Location loc)           Given the location of a class, return the contents of the file.
Class	loadClass(String name)           Alias for loadClass(name, null);
Class	loadClass(String name, boolean resolve)           This classloader does *not* follow the Java ClassLoader delegation model.
private  Class	loadClassFromTree(String name)           Given the name of a class, this method will find the location of the class (if it knows about it), and load it.
private  void	populate(Hashtable lookupParent, Node nodeParent)           The classloader does not use the Node directly, rather it creates a new tree based on the class tree.
void	printTree()
void	printTree(Hashtable parent, int level)           prints the internal tree representation to stdout.

 

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getPackage, getPackages, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

 

Methods inherited from class java.lang.Object

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

 

Field Detail

classes

private Hashtable classes

tree

private Hashtable tree

ChxClassLoader

public ChxClassLoader(Node root)

Constructor.

Parameters:

root - The root node of the tree.

populate

private void populate(Hashtable lookupParent,
                      Node nodeParent)

The classloader does not use the Node directly, rather it creates a new tree based on the class tree. This is to make it easier to lookup names of classes. That is, "$chx_*" classes are not easily located in the original tree.

loadClass

public Class loadClass(String name)
                throws ClassNotFoundException

Alias for loadClass(name, null);

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

loadClass

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

This classloader does *not* follow the Java ClassLoader delegation model. This is because we want to preempt the system classloader from loading the classes that are requested.

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

loadClassFromTree

private Class loadClassFromTree(String name)

Given the name of a class, this method will find the location of the class (if it knows about it), and load it.

getByteArray

private byte[] getByteArray(Location loc)

Given the location of a class, return the contents of the file.

Returns:

returns an array of bytes that is the contents of the file.

printTree

public void printTree(Hashtable parent,
                      int level)

prints the internal tree representation to stdout. Useful for debugging.

printTree

public void printTree()