Module jakarta.activation

Package jakarta.activation

Class FactoryFinder

java.lang.Object

jakarta.activation.FactoryFinder

class FactoryFinder
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final ServiceLoaderUtil.ExceptionHandler<RuntimeException>	EXCEPTION_HANDLER
private static final Logger	logger

Constructor Summary

Constructors

Constructor	Description
FactoryFinder()

Method Summary

Modifier and Type	Method	Description
(package private) static <T> T	find(Class<T> factoryClass)	Finds the implementation Class object for the given factory type.
(package private) static <T> T	find(Class<T> factoryClass, ClassLoader loader)
private static String	fromSystemProperty(String factoryId)
private static ClassLoader[]	getClassLoaders(Class<?>... classes)
private static Class<?>[]	getHk2ServiceLoaderTargets(Class<?> factoryClass)
private static String	getSystemProperty(String property)
private static void	logFound(String value)
private static <T> T	lookupUsingHk2ServiceLoader(Class<T> factoryClass, ClassLoader loader)
private static <T> T	newInstance(String className, Class<? extends T> service, ClassLoader loader)

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final Logger logger

EXCEPTION_HANDLER

private static final ServiceLoaderUtil.ExceptionHandler<RuntimeException> EXCEPTION_HANDLER

Constructor Details

FactoryFinder

FactoryFinder()

Method Details

find

static <T> T find(Class<T> factoryClass)
           throws RuntimeException

Finds the implementation Class object for the given factory type.

This method is package private so that this code can be shared.

Parameters:

factoryClass - factory abstract class or interface to be found

Returns:

the Class object of the specified message factory; may not be null

Throws:

IllegalStateException - if there is no factory found

RuntimeException

find

static <T> T find(Class<T> factoryClass,
 ClassLoader loader)
           throws RuntimeException

Throws:

RuntimeException

newInstance

private static <T> T newInstance(String className,
 Class<? extends T> service,
 ClassLoader loader)
                          throws RuntimeException

Throws:

RuntimeException

fromSystemProperty

private static String fromSystemProperty(String factoryId)

getSystemProperty

private static String getSystemProperty(String property)

logFound

private static void logFound(String value)

getHk2ServiceLoaderTargets

private static Class<?>[] getHk2ServiceLoaderTargets(Class<?> factoryClass)

lookupUsingHk2ServiceLoader

private static <T> T lookupUsingHk2ServiceLoader(Class<T> factoryClass,
 ClassLoader loader)

getClassLoaders

private static ClassLoader[] getClassLoaders(Class<?>... classes)