neosim.util
Class SimpleClassLoader

java.lang.Object
  |
  +--java.lang.ClassLoader
        |
        +--neosim.util.SimpleClassLoader

public class SimpleClassLoader

extends java.lang.ClassLoader

Field Summary

static SimpleClassLoader	ourLoader
static java.lang.String	urlPrefix

Method Summary

boolean	applyDefinitions(java.util.Vector classList) Define a class from the bytecodes that were collected early...
static SimpleClassLoader	createLoader(java.lang.String cookie, java.lang.String dir) Returns an InputStream on the resource
void	defineClassFromBytes(java.lang.String name, byte[] buf) Set some bytecodes as a definition for a class.
java.net.URL	getLocalResource(java.lang.String name) Return a URL to the desired resource.
static java.lang.Object	getLocalResource(java.lang.String cookie, java.lang.String name)
static java.io.InputStream	getLocalResourceAsStream(java.lang.String cookie, java.lang.String name)
java.net.URL	getResource(java.lang.String name)
java.io.InputStream	getResourceAsStream(java.lang.String name)
java.lang.Object	instantiate(java.lang.String name, InputStreamProducer isp) Interface to Beans.instantiate.
java.lang.Class	loadClass(java.lang.String name) Load a class from this class loader.
protected java.lang.Class	loadClass(java.lang.String name, boolean resolve) This is the main method for ClassLoaders, that is being redefined
java.lang.Class	loadClassFromFile(java.lang.String fileName) Helper function; load a class from a file
void	setLocalResourceSource(java.lang.String name, InputStreamProducer isp) Assign an InputStream as the source for a given property name This value comes first after the system resources

Methods inherited from class java.lang.ClassLoader

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

Methods inherited from class java.lang.Object

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

Field Detail

urlPrefix

public static final java.lang.String urlPrefix

ourLoader

public static SimpleClassLoader ourLoader

Method Detail

defineClassFromBytes

public void defineClassFromBytes(java.lang.String name,
                                 byte[] buf)

Set some bytecodes as a definition for a class. Do not actually define the class until later

loadClassFromFile

public java.lang.Class loadClassFromFile(java.lang.String fileName)
                                  throws java.lang.ClassNotFoundException

Helper function; load a class from a file

loadClass

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

Load a class from this class loader.

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException - if the class could not be found.

loadClass

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

This is the main method for ClassLoaders, that is being redefined

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException - if the class could not be found.

instantiate

public java.lang.Object instantiate(java.lang.String name,
                                    InputStreamProducer isp)
                             throws java.lang.ClassNotFoundException,
                                    java.io.IOException

Interface to Beans.instantiate. Name is that of the bean. The stream producer provides the serialized representation of the bean

setLocalResourceSource

public void setLocalResourceSource(java.lang.String name,
                                   InputStreamProducer isp)

Assign an InputStream as the source for a given property name This value comes first after the system resources

getResource

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

Overrides:

getResource in class java.lang.ClassLoader

getResourceAsStream

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

Overrides:

getResourceAsStream in class java.lang.ClassLoader

getLocalResource

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

Return a URL to the desired resource.

createLoader

public static SimpleClassLoader createLoader(java.lang.String cookie,
                                             java.lang.String dir)

Returns an InputStream on the resource

getLocalResource

public static java.lang.Object getLocalResource(java.lang.String cookie,
                                                java.lang.String name)

getLocalResourceAsStream

public static java.io.InputStream getLocalResourceAsStream(java.lang.String cookie,
                                                           java.lang.String name)

applyDefinitions

public boolean applyDefinitions(java.util.Vector classList)

Define a class from the bytecodes that were collected early... Will return false if there were problems applying the definitions This is only invoked if we are defining classes up front. Code will be removed if we don't discover any problems in testing.