edu.isi.pegasus.planner.selector.site
Class SiteSelectorFactory

java.lang.Object
  edu.isi.pegasus.planner.selector.site.SiteSelectorFactory

public class SiteSelectorFactory
extends Object

A factory class to load the appropriate type of Site Selector, as specified by the user at runtime in properties. Each invocation of the factory results in a SiteSelector being instantiated.

Version:

$Revision: 2572 $

Author:

Karan Vahi

Field Summary

static String	DEFAULT_PACKAGE_NAME The default package where the all the implementing classes provided with the VDS reside.
static String	DEFAULT_SITE_SELECTOR The name of the class in the DEFAULT package, that corresponds to the default site selector.

Constructor Summary

SiteSelectorFactory()

Method Summary

static SiteSelector

loadInstance(PegasusBag bag) Loads the implementing class corresponding to the mode specified by the user at runtime in the properties file.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PACKAGE_NAME

public static final String DEFAULT_PACKAGE_NAME

The default package where the all the implementing classes provided with the VDS reside.

See Also:

Constant Field Values

DEFAULT_SITE_SELECTOR

public static final String DEFAULT_SITE_SELECTOR

The name of the class in the DEFAULT package, that corresponds to the default site selector.

See Also:

Constant Field Values

Constructor Detail

SiteSelectorFactory

public SiteSelectorFactory()

Method Detail

loadInstance

public static SiteSelector loadInstance(PegasusBag bag)
                                 throws SiteSelectorFactoryException

Loads the implementing class corresponding to the mode specified by the user at runtime in the properties file. A default replica selector is loaded if property is not specified in the properties.

Parameters:

bag - the bag of objects that is required.

Returns:

the instance of the class implementing this interface.

Throws:

SiteSelectorFactoryException - that chains any error that might occur during the instantiation

See Also:

DEFAULT_PACKAGE_NAME, DEFAULT_SITE_SELECTOR