net.bytebuddy.utility

Class JavaModule.Dispatcher.Enabled

java.lang.Object

net.bytebuddy.utility.JavaModule.Dispatcher.Enabled

All Implemented Interfaces:

JavaModule.Dispatcher

Enclosing interface:

JavaModule.Dispatcher

@HashCodeAndEqualsPlugin.Enhance
public static class JavaModule.Dispatcher.Enabled
extends Object
implements JavaModule.Dispatcher

A dispatcher for a VM that does support the java.lang.Module API.

Nested Class Summary

Nested classes/interfaces inherited from interface net.bytebuddy.utility.JavaModule.Dispatcher

JavaModule.Dispatcher.CreationAction, JavaModule.Dispatcher.Disabled, JavaModule.Dispatcher.Enabled

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Enabled(Method getModule, Method getClassLoader, Method isNamed, Method getName, Method getResourceAsStream, Method isExported, Method isOpened, Method canRead, Method isModifiableModule, Method redefineModule) Creates an enabled dispatcher.

Method Summary

Modifier and Type	Method and Description
boolean	canRead(Object source, Object target) Checks if the source module can read the target module.
ClassLoader	getClassLoader(Object module) Returns the module's class loader.
String	getName(Object module) Returns the module's name.
InputStream	getResourceAsStream(Object module, String name) Returns a resource stream for this module for a resource of the given name or null if such a resource does not exist.
boolean	isAlive() Checks if this dispatcher is alive, i.e.
boolean	isExported(Object source, Object target, String aPackage) Returns true if the source module exports the supplied package to the target module.
boolean	isNamed(Object module) Returns true if the supplied module is named.
boolean	isOpened(Object source, Object target, String aPackage) Returns true if the source module opens the supplied package to the target module.
void	modify(Instrumentation instrumentation, Object source, Set<Object> reads, Map<String,Set<Object>> exports, Map<String,Set<Object>> opens, Set<Class<?>> uses, Map<Class<?>,List<Class<?>>> provides) Modifies this module's properties.
JavaModule	moduleOf(Class<?> type) Extracts the Java Module for the provided class or returns null if the current VM does not support modules.

Methods inherited from class java.lang.Object

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

Constructor Detail

Enabled

protected Enabled(Method getModule,
                  Method getClassLoader,
                  Method isNamed,
                  Method getName,
                  Method getResourceAsStream,
                  Method isExported,
                  Method isOpened,
                  Method canRead,
                  Method isModifiableModule,
                  Method redefineModule)

Creates an enabled dispatcher.

Parameters:

getModule - The java.lang.Class#getModule() method.

getClassLoader - The java.lang.Module#getClassLoader() method.

isNamed - The java.lang.Module#isNamed() method.

getName - The java.lang.Module#getName() method.

getResourceAsStream - The java.lang.Module#getResourceAsStream(String) method.

isExported - The java.lang.Module#isExported(String,Module) method.

isOpened - The java.lang.Module#isOpened(String,Module) method.

canRead - The java.lang.Module#canRead(Module) method.

isModifiableModule - The java.lang.instrument.Instrumentation#isModifiableModule method.

redefineModule - The java.lang.instrument.Instrumentation#redefineModule method.

Method Detail

isAlive

public boolean isAlive()

Checks if this dispatcher is alive, i.e. supports modules.

Specified by:

isAlive in interface JavaModule.Dispatcher

Returns:

true if modules are supported on the current VM.

moduleOf

public JavaModule moduleOf(Class<?> type)

Extracts the Java Module for the provided class or returns null if the current VM does not support modules.

Specified by:

moduleOf in interface JavaModule.Dispatcher

Parameters:

type - The type for which to extract the module.

Returns:

The class's Module or null if the current VM does not support modules.

getResourceAsStream

public InputStream getResourceAsStream(Object module,
                                       String name)

Returns a resource stream for this module for a resource of the given name or null if such a resource does not exist.

Specified by:

getResourceAsStream in interface JavaModule.Dispatcher

Parameters:

module - The java.lang.Module instance to apply this method upon.

name - The name of the resource.

Returns:

An input stream for the resource or null if it does not exist.

getClassLoader

public ClassLoader getClassLoader(Object module)

Returns the module's class loader.

Specified by:

getClassLoader in interface JavaModule.Dispatcher

Parameters:

module - The java.lang.Module

Returns:

The module's class loader.

isNamed

public boolean isNamed(Object module)

Returns true if the supplied module is named.

Specified by:

isNamed in interface JavaModule.Dispatcher

Parameters:

module - The java.lang.Module to check for the existence of a name.

Returns:

true if the supplied module is named.

getName

public String getName(Object module)

Returns the module's name.

Specified by:

getName in interface JavaModule.Dispatcher

Parameters:

module - The java.lang.Module to check for its name.

Returns:

The module's (implicit or explicit) name.

isExported

public boolean isExported(Object source,
                          Object target,
                          String aPackage)

Returns true if the source module exports the supplied package to the target module.

Specified by:

isExported in interface JavaModule.Dispatcher

Parameters:

source - The source module.

target - The target module.

aPackage - The name of the package to check.

Returns:

true if the source module exports the supplied package to the target module.

isOpened

public boolean isOpened(Object source,
                        Object target,
                        String aPackage)

Returns true if the source module opens the supplied package to the target module.

Specified by:

isOpened in interface JavaModule.Dispatcher

Parameters:

source - The source module.

target - The target module.

aPackage - The name of the package to check.

Returns:

true if the source module opens the supplied package to the target module.

canRead

public boolean canRead(Object source,
                       Object target)

Checks if the source module can read the target module.

Specified by:

canRead in interface JavaModule.Dispatcher

Parameters:

source - The source module.

target - The target module.

Returns:

true if the source module can read the target module.

modify

public void modify(Instrumentation instrumentation,
                   Object source,
                   Set<Object> reads,
                   Map<String,Set<Object>> exports,
                   Map<String,Set<Object>> opens,
                   Set<Class<?>> uses,
                   Map<Class<?>,List<Class<?>>> provides)

Modifies this module's properties.

Specified by:

modify in interface JavaModule.Dispatcher

Parameters:

instrumentation - The instrumentation instace to use for applying the modification.

source - The module to modify.

reads - A set of additional modules this module should read.

exports - A map of packages to export to a set of modules.

opens - A map of packages to open to a set of modules.

uses - A set of provider interfaces to use by this module.

provides - A map of provider interfaces to provide by this module mapped to the provider implementations.