org.ow2.proactive.resourcemanager.nodesource.policy

Class NodeSourcePolicyFactory

java.lang.Object

org.ow2.proactive.resourcemanager.nodesource.policy.NodeSourcePolicyFactory

public class NodeSourcePolicyFactory
extends Object

Provides a generic way to create a node source policy. Loads all supported policies names from a config file. Checks that required policy is supported at creation time and also that it is compatible with specified infrastructure.

Constructor Summary

Constructors

Constructor and Description
NodeSourcePolicyFactory()

Method Summary

Modifier and Type	Method and Description
static NodeSourcePolicy	activate(NodeSourcePolicy policy, Object[] policyParameters) Creates the node source policy activity, given a node source policy instance.
static NodeSourcePolicy	create(String policyClassName) Creates a new node source policy.
static NodeSourcePolicy	createAndActivate(String policyClassName, String infrastructureType, Object[] policyParameters) Creates a new active node source policy using reflection mechanism.
static Collection<Class<?>>	getSupportedPolicies() Loads a list of supported policies from a configuration file

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeSourcePolicyFactory

public NodeSourcePolicyFactory()

Method Detail

createAndActivate

public static NodeSourcePolicy createAndActivate(String policyClassName,
                                                 String infrastructureType,
                                                 Object[] policyParameters)

Creates a new active node source policy using reflection mechanism.

Parameters:

policyClassName - full class name of the policy

infrastructureType - infrastructure class name (for compatibility check)

policyParameters - policy parameters

Returns:

a stub of the node source policy

create

public static NodeSourcePolicy create(String policyClassName)

Creates a new node source policy.

Parameters:

policyClassName - full class name of the policy

Returns:

new instance of the node source policy

activate

public static NodeSourcePolicy activate(NodeSourcePolicy policy,
                                        Object[] policyParameters)

Creates the node source policy activity, given a node source policy instance.

Parameters:

policy - the node source policy to turn active

policyParameters - the policy parameters needed to configure it once it is turned active

Returns:

a stub to the node source policy activity

getSupportedPolicies

public static Collection<Class<?>> getSupportedPolicies()

Loads a list of supported policies from a configuration file

Returns:

list of supported infrastructures