org.apache.stratum.component
Class ComponentLoader

java.lang.Object
  org.apache.stratum.component.ComponentLoader

public class ComponentLoader

extends java.lang.Object

Loader for Components implementing the lifecyle Interfaces. NOTE: This class is in its infancy and will more than likely change.

Version:

$Id: ComponentLoader.java 264191 2005-08-29 18:07:52Z henning $

Author:

Eric Dobbs , Martin Poeschl

Constructor Summary

ComponentLoader(org.apache.commons.configuration.Configuration configuration)
Constructor

Method Summary

org.apache.commons.configuration.Configuration	getConfiguration() Support method for testing the constructor
java.lang.Object[]	load() Load all the components listed in the ComponentLoader's configuration.
java.lang.Object	loadComponent(java.lang.String className, java.lang.String configFile, org.apache.commons.configuration.Configuration additionalConfig) load the given component, configure it with the given config file, and initialize it.
void	setConfiguration(org.apache.commons.configuration.Configuration configuration) Set the configuration for this ComponentLoader

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentLoader

public ComponentLoader(org.apache.commons.configuration.Configuration configuration)

Constructor

Parameters:

configuration -

Method Detail

setConfiguration

public void setConfiguration(org.apache.commons.configuration.Configuration configuration)

Set the configuration for this ComponentLoader

Parameters:

configuration - Configuration

getConfiguration

public org.apache.commons.configuration.Configuration getConfiguration()

Support method for testing the constructor

Returns:

the configuration

load

public java.lang.Object[] load()

Load all the components listed in the ComponentLoader's configuration. Log any errors, but throw no exceptions if components cannot be loaded.

Configuration notes:
Components are identified in the properties file as follows:
component.name=NAME component.NAME.classname = com.mycompany.components.SomeComponent component.NAME.config = path/to/SomeComponent.properties

Returns:

an array of loaded components

loadComponent

public java.lang.Object loadComponent(java.lang.String className,
                                      java.lang.String configFile,
                                      org.apache.commons.configuration.Configuration additionalConfig)

load the given component, configure it with the given config file, and initialize it.
The component must implement the Initializable and Configurable interfaces.

Parameters:

className - the String class name of the component to load

configFile - the String path name of the component's config file

additionalConfig - TODO: DOCUMENT ME!

Returns:

the loaded component or null if it failed to load

See Also:

Initializable, Configurable