Package fr.ifremer.isisfish.aspect

Class AspectJUrlClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.aspectj.weaver.bcel.ExtensibleURLClassLoader

fr.ifremer.isisfish.aspect.AspectJUrlClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable, org.aspectj.weaver.tools.GeneratedClassHandler, org.aspectj.weaver.tools.WeavingClassLoader

public class AspectJUrlClassLoader
extends org.aspectj.weaver.bcel.ExtensibleURLClassLoader
implements org.aspectj.weaver.tools.WeavingClassLoader

Cette classe est un copié/coller de WeavingURLClassLoader qui permet de définit notre propre instance de adaptor pour, dans le cas d'IsisFish, permettre d'ajouter des aspects à l'execution. Elle définie deux nouvelles méthodes:

• deploy(Class) : qui permet de deployer un nouvel aspect
• prepare() : à appeler après l'ajout de tous les aspects dynamiques

Since:

4.2.0.0

Field Summary

Fields

Modifier and Type	Field	Description
static final String	WEAVING_ASPECT_PATH
static final String	WEAVING_CLASS_PATH

Constructor Summary

Constructors

Constructor	Description
AspectJUrlClassLoader(URL[] urls, ClassLoader parent)

Method Summary

Modifier and Type	Method	Description
void	acceptClass(String name, byte[] classBytes, byte[] weavedBytes)
protected void	addURL(URL url)
protected Class	defineClass(String name, byte[] b, CodeSource cs)	Override to weave class using WeavingAdaptor
void	deploy(Class<?> aspectClass)
URL[]	getAspectURLs()	Implement method from WeavingClassLoader
protected byte[]	getBytes(String name)	Override to find classes generated by WeavingAdaptor
void	prepare()	Mark classloader as configured with aspects and tell to prepare for weaving.

Methods inherited from class org.aspectj.weaver.bcel.ExtensibleURLClassLoader

close, findClass

Methods inherited from class java.net.URLClassLoader

definePackage, findResource, findResources, getPermissions, 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, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, 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 Details

WEAVING_CLASS_PATH

public static final String WEAVING_CLASS_PATH

See Also:

• Constant Field Values

WEAVING_ASPECT_PATH

public static final String WEAVING_ASPECT_PATH

See Also:

• Constant Field Values

Constructor Details

AspectJUrlClassLoader

public AspectJUrlClassLoader(URL[] urls,
 ClassLoader parent)

Method Details

addURL

protected void addURL(URL url)

Overrides:

addURL in class org.aspectj.weaver.bcel.ExtensibleURLClassLoader

defineClass

protected Class defineClass(String name,
 byte[] b,
 CodeSource cs)
                     throws IOException

Override to weave class using WeavingAdaptor

Overrides:

defineClass in class org.aspectj.weaver.bcel.ExtensibleURLClassLoader

Throws:

IOException

getBytes

protected byte[] getBytes(String name)
                   throws IOException

Override to find classes generated by WeavingAdaptor

Overrides:

getBytes in class org.aspectj.weaver.bcel.ExtensibleURLClassLoader

Throws:

IOException

getAspectURLs

public URL[] getAspectURLs()

Implement method from WeavingClassLoader

Specified by:

getAspectURLs in interface org.aspectj.weaver.tools.WeavingClassLoader

acceptClass

public void acceptClass(String name,
 byte[] classBytes,
 byte[] weavedBytes)

Specified by:

acceptClass in interface org.aspectj.weaver.tools.GeneratedClassHandler

deploy

public void deploy(Class<?> aspectClass)

prepare

public void prepare()

Mark classloader as configured with aspects and tell to prepare for weaving. Must call this method to avoid NPE in aspectj weaver.