org.springframework.instrument.classloading

Class ResourceOverridingShadowingClassLoader

java.lang.Object

java.lang.ClassLoader

org.springframework.core.DecoratingClassLoader

org.springframework.instrument.classloading.ShadowingClassLoader

org.springframework.instrument.classloading.ResourceOverridingShadowingClassLoader

public class ResourceOverridingShadowingClassLoader
extends ShadowingClassLoader

Subclass of ShadowingClassLoader that overrides attempts to locate certain files.

Since:

2.0

Author:

Rod Johnson, Adrian Colyer

Field Summary

Fields

Modifier and Type	Field and Description
private static java.util.Enumeration<java.net.URL>	EMPTY_URL_ENUMERATION
private java.util.Map<java.lang.String,java.lang.String>	overrides Key is asked for value: value is actual value

Fields inherited from class org.springframework.instrument.classloading.ShadowingClassLoader

DEFAULT_EXCLUDED_PACKAGES

Fields inherited from class org.springframework.core.DecoratingClassLoader

parallelCapableClassLoaderAvailable

Constructor Summary

Constructors

Constructor and Description
ResourceOverridingShadowingClassLoader(java.lang.ClassLoader enclosingClassLoader) Create a new ResourceOverridingShadowingClassLoader, decorating the given ClassLoader.

Method Summary

Modifier and Type	Method and Description
void	copyOverrides(ResourceOverridingShadowingClassLoader other) Copy all overrides from the given ClassLoader.
java.net.URL	getResource(java.lang.String requestedPath)
java.io.InputStream	getResourceAsStream(java.lang.String requestedPath)
java.util.Enumeration<java.net.URL>	getResources(java.lang.String requestedPath)
void	override(java.lang.String oldPath, java.lang.String newPath) Return the resource (if any) at the new path on an attempt to locate a resource at the old path.
void	suppress(java.lang.String oldPath) Ensure that a resource with the given path is not found.

Methods inherited from class org.springframework.instrument.classloading.ShadowingClassLoader

addTransformer, copyTransformers, isEligibleForShadowing, loadClass

Methods inherited from class org.springframework.core.DecoratingClassLoader

excludeClass, excludePackage, isExcluded

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findResources, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, 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

EMPTY_URL_ENUMERATION

private static final java.util.Enumeration<java.net.URL> EMPTY_URL_ENUMERATION

overrides

private java.util.Map<java.lang.String,java.lang.String> overrides

Key is asked for value: value is actual value

Constructor Detail

ResourceOverridingShadowingClassLoader

public ResourceOverridingShadowingClassLoader(java.lang.ClassLoader enclosingClassLoader)

Create a new ResourceOverridingShadowingClassLoader, decorating the given ClassLoader.

Parameters:

enclosingClassLoader - the ClassLoader to decorate

Method Detail

override

public void override(java.lang.String oldPath,
                     java.lang.String newPath)

Return the resource (if any) at the new path on an attempt to locate a resource at the old path.

Parameters:

oldPath - the path requested

newPath - the actual path to be looked up

suppress

public void suppress(java.lang.String oldPath)

Ensure that a resource with the given path is not found.

Parameters:

oldPath - the path of the resource to hide even if it exists in the parent ClassLoader

copyOverrides

public void copyOverrides(ResourceOverridingShadowingClassLoader other)

Copy all overrides from the given ClassLoader.

Parameters:

other - the other ClassLoader to copy from

getResource

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

Overrides:

getResource in class ShadowingClassLoader

getResourceAsStream

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

Overrides:

getResourceAsStream in class ShadowingClassLoader

getResources

public java.util.Enumeration<java.net.URL> getResources(java.lang.String requestedPath)
                                                 throws java.io.IOException

Overrides:

getResources in class ShadowingClassLoader

Throws:

java.io.IOException