at.mug.iqm.core.plugin

Class DefaultPluginService

java.lang.Object

at.mug.iqm.core.plugin.DefaultPluginService

All Implemented Interfaces:

IPluginService

public class DefaultPluginService
extends Object
implements IPluginService

This class is responsible for loading all classes from the class path that are implementing the IPlugin interface.

Author:

Philipp Kainz

Field Summary

Fields

Modifier and Type	Field and Description
private static org.apache.log4j.Logger	logger Custom class logger.
private static DefaultPluginService	pluginService The singleton reference.
private ServiceLoader<IPlugin>	serviceLoader The service loader for the IPlugins.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	DefaultPluginService() Private constructor.

Method Summary

Modifier and Type	Method and Description
static DefaultPluginService	getInstance() Gets a singleton instance of DefaultPluginService.
Iterator<IPlugin>	getPlugins() Gets all plugins on the class path.
void	initPlugins() Initialize the plugin.

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final org.apache.log4j.Logger logger

Custom class logger.

pluginService

private static DefaultPluginService pluginService

The singleton reference.

serviceLoader

private ServiceLoader<IPlugin> serviceLoader

The service loader for the IPlugins.

Constructor Detail

DefaultPluginService

private DefaultPluginService()

Private constructor.

Method Detail

getInstance

public static DefaultPluginService getInstance()

Gets a singleton instance of DefaultPluginService.

Returns:

the reference to the singleton

getPlugins

public Iterator<IPlugin> getPlugins()

Description copied from interface: IPluginService

Gets all plugins on the class path.

Specified by:

getPlugins in interface IPluginService

Returns:

an Iterator of IPlugins

initPlugins

public void initPlugins()
                 throws Exception

Initialize the plugin.

On calling IPlugin.init() the IPlugin registers its operator with the default IPluginRegistry;

Specified by:

initPlugins in interface IPluginService

Throws:

Exception