Class FactoryFinder

java.lang.Object

jakarta.ws.rs.sse.FactoryFinder

final class FactoryFinder
extends Object

Factory finder utility class.

Since:

2.1

Field Summary

Fields

Modifier and Type	Field	Description
private static final Logger	LOGGER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	FactoryFinder()

Method Summary

Modifier and Type	Method	Description
(package private) static <T> Object	find(String factoryId, Class<T> service)	Finds the implementation Class for the given factory name and create its instance.
private static <T> T	findFirstService(String factoryId, ClassLoader cl, Class<T> service)
private static ClassLoader	getClassLoader()
private static ClassLoader	getContextClassLoader()
private static Object	newInstance(String className, ClassLoader classLoader)	Creates an instance of the specified class using the specified ClassLoader object.

Methods inherited from class Object

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

Field Details

LOGGER

private static final Logger LOGGER

Constructor Details

FactoryFinder

private FactoryFinder()

Method Details

getContextClassLoader

private static ClassLoader getContextClassLoader()

newInstance

private static Object newInstance(String className,
 ClassLoader classLoader)
                           throws ClassNotFoundException

Creates an instance of the specified class using the specified ClassLoader object.

Parameters:

className - name of the class to be instantiated.

classLoader - class loader to be used.

Returns:

instance of the specified class.

Throws:

ClassNotFoundException - if the given class could not be found or could not be instantiated.

find

static <T> Object find(String factoryId,
 Class<T> service)
                throws ClassNotFoundException

Finds the implementation Class for the given factory name and create its instance.

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

Type Parameters:

T - type of the service to be found.

Parameters:

factoryId - the name of the factory to find, which is a system property.

service - service to be found.

Returns:

the instance of the specified service; may not be null.

Throws:

ClassNotFoundException - if the given class could not be found or could not be instantiated.

getClassLoader

private static ClassLoader getClassLoader()

findFirstService

private static <T> T findFirstService(String factoryId,
 ClassLoader cl,
 Class<T> service)