public async Task <JobImpactTranslationMode> EvaluateJobImpactAsync(IManagementNotificationContext notification)
{
notification.Validate("notification");
if (notification.NotificationType != NotificationType.StartJobStep)
{
// this is a coding error
throw new ArgumentException("Notification not relevant. Notification: {0}".ToString(notification.ToShortDisplayString()));
}
if (DoesAssessmentMatchNotification(notification))
{
return(currentJobImpactData.AssessedImpact);
}
traceType.WriteInfo(
"JobImpactData doesn't match, starting new evaluation. Notification: {0}, Current JobImpactData: {1}",
notification.ToShortDisplayString(), currentJobImpactData != null ? currentJobImpactData.ToString() : "<null>");
var now = DateTimeOffset.UtcNow;
// There is already retry built into the QueryClient wrapper. If it goes beyond retry boundaries,
// we'll let the caller handle this
IList <INode> nodeList = await QueryClient.GetNodeListAsync(now).ConfigureAwait(false);
var queriedNodes = nodeList.ToDictionary(e => e.NodeName, StringComparer.OrdinalIgnoreCase);
Dictionary <string, INode> nodesToBeImpacted = GetNodesInNotification(notification, queriedNodes);
var newJobImpactData = new JobImpactData
{
JobId = notification.ActiveJobId,
JobType = notification.ActiveJobType,
UD = notification.ActiveJobStepTargetUD,
AssessedNodes = nodesToBeImpacted,
Timestamp = now,
AssessedImpact = JobImpactTranslationMode.Default,
};
// no previous data
if (currentJobImpactData == null)
{
currentJobImpactData = newJobImpactData;
traceType.WriteInfo(
"New assessed job impact stored. Returning {0}, JobImpactData: {1}, Notification: {2}",
currentJobImpactData.AssessedImpact,
currentJobImpactData,
notification.ToShortDisplayString());
return(currentJobImpactData.AssessedImpact);
}
// has too much time passed after assessment?
bool expired = HasPreviousEvaluationExpired(now, currentJobImpactData);
if (expired)
{
currentJobImpactData = newJobImpactData;
traceType.WriteWarning(
"New assessed job impact stored. Time since last assessment is either invalid or has exceeded expiration time. Returning {0}. JobImpactData: {1}, Notification: {2}",
currentJobImpactData.AssessedImpact,
currentJobImpactData,
notification.ToShortDisplayString());
return(currentJobImpactData.AssessedImpact);
}
bool?restarted = DidPreviouslyAssessedNodesRestart(queriedNodes, currentJobImpactData);
if (restarted == null)
{
traceType.WriteInfo(
"Unable to assess job impact, continuing to use previous assessment. Returning {0}, JobImpactData: {1}, Notification: {2}",
currentJobImpactData.AssessedImpact,
currentJobImpactData,
notification.ToShortDisplayString());
return(currentJobImpactData.AssessedImpact);
}
currentJobImpactData = newJobImpactData;
currentJobImpactData.AssessedImpact = restarted.Value
? JobImpactTranslationMode.Default
: JobImpactTranslationMode.Optimized;
traceType.WriteInfo(
"New assessed job impact stored. Returning {0}, JobImpactData: {1}, Notification: {2}",
currentJobImpactData.AssessedImpact,
currentJobImpactData,
notification.ToShortDisplayString());
return(currentJobImpactData.AssessedImpact);
}
