/// <summary>
/// Retrieve wlb optimize pool recommendation action complete handler.
/// Populate optimize pool listview and enable controls properly.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">e</param>
protected void OptRecRetrieveAction_Completed(ActionBase sender)
{
AsyncAction action = (AsyncAction)sender;
if (action.IsCompleted)
{
action.Completed -= OptRecRetrieveAction_Completed;
if (action is WlbRetrieveRecommendationAction)
{
WlbRetrieveRecommendationAction thisAction = (WlbRetrieveRecommendationAction)action;
_recommendations = thisAction.WLBOptPoolRecommendations;
if (_recommendations != null && IsGoodRecommendation(_recommendations) && _xenObject.Connection == action.Connection)
{
Program.Invoke(this, delegate()
{
PopulateData(_recommendations);
// In case optimizePoolListView is empty
if (optimizePoolListView.Items.Count == 0)
{
statusLabel.Text = Messages.WLB_OPT_POOL_NO_RECOMMENDATION;
EnableControls(true, false);
}
else
{
EnableControls(false, true);
}
});
}
else
{
Program.Invoke(this, delegate()
{
statusLabel.Text = Messages.WLB_OPT_POOL_NO_RECOMMENDATION;
EnableControls(true, false);
});
}
}
}
}
/// <summary>
/// WLB Optimize Pool
/// </summary>
/// <param name="connection">May not be null.</param>
/// <returns></returns>
internal static AsyncAction FindActiveOptAction(IXenConnection connection)
{
Program.AssertOnEventThread();
foreach (ActionBase action in ConnectionsManager.History)
{
if (action.IsCompleted)
{
continue;
}
WlbOptimizePoolAction optAction = action as WlbOptimizePoolAction;
if (optAction != null && optAction.Connection == connection)
{
return(optAction);
}
WlbRetrieveRecommendationAction optRecAction = action as WlbRetrieveRecommendationAction;
if (optRecAction != null && optRecAction.Connection == connection)
{
return(optRecAction);
}
}
return(null);
}
/// <summary>
/// Build optimize pool list view properly
/// </summary>
private void BuildRecList()
{
Program.AssertOnEventThread();
if (_xenObject == null)
{
return;
}
if (Helpers.WlbEnabled(_xenObject.Connection))
{
try
{
if (_xenObject is Pool)
{
_pool = (Pool)_xenObject;
// get any active WLB action
action = HelpersGUI.FindActiveWLBAction(_xenObject.Connection);
// make sure we are not initializing, starting or stopping WLB
if (action is DisableWLBAction || action is EnableWLBAction || action is InitializeWLBAction)
{
return;
}
optimizePoolListView.BeginUpdate();
// check whether optimize pool is running before load optimize pool listview
if ((action != null && action is WlbOptimizePoolAction) ||
(action == null && _pool.other_config.ContainsKey(WlbOptimizationRecommendation.OPTIMIZINGPOOL) &&
_pool.other_config[WlbOptimizationRecommendation.OPTIMIZINGPOOL] == Messages.IN_PROGRESS))
{
//statusLabel.Text = Messages.WLB_OPT_OPTIMIZING;
this.applyButton.Text = Messages.WLB_OPT_OPTIMIZING;
EnableControls(false, false);
}
else if (action == null || (action != null && action.GetType() != typeof(WlbRetrieveRecommendationAction)))
{
this.applyButton.Text = Messages.WLB_OPT_APPLY_RECOMMENDATIONS;
// retrieve recommendations, and load optimize pool listview properly
WlbRetrieveRecommendationAction optAction = new WlbRetrieveRecommendationAction(_pool);
optAction.Completed += this.OptRecRetrieveAction_Completed;
optAction.RunAsync();
}
}
}
catch (Failure f)
{
statusLabel.Text = Messages.WLB_OPT_LOADING_ERROR;
log.Error(f, f);
}
catch (Exception e)
{
statusLabel.Text = Messages.WLB_OPT_LOADING_ERROR;
log.ErrorFormat("There was an error calling retrieve_wlb_recommendations on pool {0}", _pool.name_label);
log.Error(e, e);
}
finally
{
optimizePoolListView.EndUpdate();
}
}
else
{
this.WLBOptDisable(true);
}
}
