edu.isi.pegasus.planner.transfer.refiner

Class RefinerFactory

java.lang.Object

edu.isi.pegasus.planner.transfer.refiner.RefinerFactory

public class RefinerFactory
extends Object

The factory class that loads an appropriate Transfer Refiner class, as specified by the properties.

Version:

$Revision$

Author:

Karan Vahi

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_PACKAGE_NAME The default package where the implementations reside, which this factory loads.
static String	DEFAULT_REFINER_IMPLEMENTATION The default refiner implementation that is picked up.

Constructor Summary

Constructors

Constructor and Description
RefinerFactory()

Method Summary

Methods

Modifier and Type	Method and Description
static Refiner	loadInstance(ADag dag, PegasusBag bag) Loads the implementing class corresponding to the value specified in the properties.
static Refiner	loadInstance(String className, PegasusBag bag, ADag dag) Loads the implementing class corresponding to the class.

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 implementations reside, which this factory loads.

See Also:

Constant Field Values

DEFAULT_REFINER_IMPLEMENTATION

public static final String DEFAULT_REFINER_IMPLEMENTATION

The default refiner implementation that is picked up.

See Also:

Constant Field Values

Constructor Detail

RefinerFactory

public RefinerFactory()

Method Detail

loadInstance

public static Refiner loadInstance(ADag dag,
                   PegasusBag bag)
                            throws TransferRefinerFactoryException

Loads the implementing class corresponding to the value specified in the properties. If the package name is not specified with the class, then class is assumed to be in the DEFAULT_PACKAGE. The properties object passed should not be null.

In addition it ends up loading the appropriate Transfer Implementation that is required by the refiner.

Parameters:

dag - the workflow that is being refined.

bag - the bag of initialization objects

Returns:

the instance of the class implementing this interface.

Throws:

TransferRefinerException - that nests any error that might occur during the instantiation.

TransferRefinerFactoryException

See Also:

DEFAULT_PACKAGE_NAME

loadInstance

public static Refiner loadInstance(String className,
                   PegasusBag bag,
                   ADag dag)
                            throws TransferRefinerFactoryException

Loads the implementing class corresponding to the class. If the package name is not specified with the class, then class is assumed to be in the DEFAULT_PACKAGE. The properties object passed should not be null. In addition it ends up loading the appropriate Transfer Implementation that is required by the refiner.

Parameters:

className - the name of the class that implements the mode.It can or cannot be with the package name.

bag - the bag of initialization objects

dag - the workflow that is being refined.

Returns:

the instance of the class implementing this interface.

Throws:

TransferRefinerFactoryException - that nests any error that might occur during the instantiation.

See Also:

DEFAULT_PACKAGE_NAME