Package net.bytebuddy.dynamic

Class ClassFileLocator.ForUrl

java.lang.Object

net.bytebuddy.dynamic.ClassFileLocator.ForUrl

All Implemented Interfaces:

Closeable, AutoCloseable, ClassFileLocator

Enclosing interface:

ClassFileLocator

@Enhance
public static class ClassFileLocator.ForUrl
extends Object
implements ClassFileLocator

A class file locator that reads class files from one or several URLs. The reading is accomplished via using an URLClassLoader. Doing so, boot loader resources might be located additionally to those found via the specified URLs.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	ClassFileLocator.ForUrl.ClassLoaderCreationAction	An action to create a class loader with the purpose of locating classes from an URL location.

Nested classes/interfaces inherited from interface net.bytebuddy.dynamic.ClassFileLocator

ClassFileLocator.Compound, ClassFileLocator.Filtering, ClassFileLocator.ForClassLoader, ClassFileLocator.ForFolder, ClassFileLocator.ForInstrumentation, ClassFileLocator.ForJarFile, ClassFileLocator.ForModule, ClassFileLocator.ForModuleFile, ClassFileLocator.ForUrl, ClassFileLocator.NoOp, ClassFileLocator.PackageDiscriminating, ClassFileLocator.Resolution, ClassFileLocator.Simple

Field Summary

Fields

Modifier and Type	Field	Description
private final ClassLoader	classLoader	The class loader that delegates to the URLs.

Fields inherited from interface net.bytebuddy.dynamic.ClassFileLocator

CLASS_FILE_EXTENSION

Constructor Summary

Constructors

Constructor	Description
ForUrl(URL... url)	Creates a new class file locator for the given URLs.
ForUrl(Collection<? extends URL> urls)	Creates a new class file locator for the given URLs.

Method Summary

Modifier and Type	Method	Description
void	close()
private static <T> T	doPrivileged(PrivilegedAction<T> action)	A proxy for java.security.AccessController#doPrivileged that is activated if available.
ClassFileLocator.Resolution	locate(String name)	Locates the class file for a given type and returns the binary data of the class file.

Methods inherited from class java.lang.Object

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

Field Details

classLoader

private final ClassLoader classLoader

The class loader that delegates to the URLs.

Constructor Details

ForUrl

public ForUrl(URL... url)

Creates a new class file locator for the given URLs.

Parameters:

url - The URLs to search for class files.

ForUrl

public ForUrl(Collection<? extends URL> urls)

Creates a new class file locator for the given URLs.

Parameters:

urls - The URLs to search for class files.

Method Details

doPrivileged

@Enhance
private static <T> T doPrivileged(PrivilegedAction<T> action)

A proxy for java.security.AccessController#doPrivileged that is activated if available.

Type Parameters:

T - The type of the action's resolved value.

Parameters:

action - The action to execute from a privileged context.

Returns:

The action's resolved value.

locate

public ClassFileLocator.Resolution locate(String name)
                                   throws IOException

Locates the class file for a given type and returns the binary data of the class file.

Specified by:

locate in interface ClassFileLocator

Parameters:

name - The name of the type to locate a class file representation for.

Returns:

Any binary representation of the type which might be illegal.

Throws:

IOException - If reading a class file causes an error.

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException