Package org.btrplace.plan

Interface ReconfigurationPlanMonitor

All Known Implementing Classes:

DefaultReconfigurationPlanMonitor

public interface ReconfigurationPlanMonitor

This allows to monitor the execution of a reconfiguration plan while considering the dependencies between the actions that are established in a ReconfigurationPlan.

With regards to the actions that have already been executed, it is possible to get the actions that can be safely executed.

Author:

Fabien Hermenier

Method Summary

Modifier and Type	Method	Description
Set<Action>	commit(Action a)	Commit an action that was applyable.
Model	getCurrentModel()	Get the current model.
int	getNbCommitted()	Get the number of actions that have been committed.
ReconfigurationPlan	getReconfigurationPlan()	Get the plan associated to the monitor.
boolean	isBlocked(Action a)	Check if an action is blocked.

Method Details

getCurrentModel

Model getCurrentModel()

Get the current model.

Returns:

a model

commit

Set<Action> commit(Action a) throws InfeasibleActionException

Commit an action that was applyable. If it is theoretically possible to execute the action on the current model, the model is updated accordingly.

Parameters:

a - the action to commit

Returns:

a set of unblocked actions that may be empty if the operation succeed.

Throws:

InfeasibleActionException - if the action was not applyable.

getNbCommitted

int getNbCommitted()

Get the number of actions that have been committed.

Returns:

a number between 0 and ReconfigurationPlan.getSize()

isBlocked

boolean isBlocked(Action a)

Check if an action is blocked.

Parameters:

a - the action to check

Returns:

true iff the action is blocked

getReconfigurationPlan

ReconfigurationPlan getReconfigurationPlan()

Get the plan associated to the monitor.

Returns:

a non-null plan