mondrian.util

Class ServiceDiscovery<T>

java.lang.Object

mondrian.util.ServiceDiscovery<T>

public class ServiceDiscovery<T>
extends Object

Utility functions to discover Java services.

Java services are described in the JAR File Specification.

Based on the suggested file format, this class reads the service entries in a JAR file and discovers implementors of an interface.

Author:

Marc Batchelor

Method Summary

Modifier and Type	Method and Description
static <T> ServiceDiscovery<T>	forClass(Class<T> theInterface) Creates a ServiceDiscovery.
List<Class<T>>	getImplementor() Returns a list of classes that implement the service.
protected void	parseImplementor(String clazz, ClassLoader cLoader, Set<Class<T>> uniqueClasses) Parses a list of classes that implement a service.

Methods inherited from class java.lang.Object

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

Method Detail

forClass

public static <T> ServiceDiscovery<T> forClass(Class<T> theInterface)

Creates a ServiceDiscovery.

Parameters:

theInterface - Interface for service

Returns:

ServiceDiscovery for finding instances of the given interface

getImplementor

public List<Class<T>> getImplementor()

Returns a list of classes that implement the service.

Returns:

List of classes that implement the service

parseImplementor

protected void parseImplementor(String clazz,
                                ClassLoader cLoader,
                                Set<Class<T>> uniqueClasses)

Parses a list of classes that implement a service.

Parameters:

clazz - Class name (or list of class names)

cLoader - Class loader

uniqueClasses - Set of classes (output)