/// <summary>
/// Creates a new work item.
/// </summary>
/// <param name="p"></param>
/// <param name="expirationTime"></param>
/// <returns></returns>
public static WorkQueueItem CreateWorkQueueItem(Procedure p, TimeSpan expirationTime)
{
WorkQueueItem item = new WorkQueueItem(WorkQueueItemType);
item.ExpirationTime = Platform.Time.Add(expirationTime);
item.ExtendedProperties.Add(ProcedureOIDKey, p.GetRef().Serialize());
return item;
}
public void EnqueueEvents(Order order)
{
var queueItem = new WorkQueueItem(WorkQueueItemType);
queueItem.ExtendedProperties.Add("EventType", this.EventType);
queueItem.ExtendedProperties.Add("OrderOID", order.OID.ToString());
queueItem.ExtendedProperties.Add("AccessionNumber", order.AccessionNumber);
EnqueueWorkItem(queueItem);
}
protected override bool ShouldReschedule(WorkQueueItem item, Exception error, out DateTime rescheduleTime)
{
if (error == null)
return base.ShouldReschedule(item, null, out rescheduleTime);
//todo: should we retry? things might end up being processed out of order
rescheduleTime = Platform.Time + _failedItemRetryDelay;
return true;
}
protected override void ActOnItem(WorkQueueItem item)
{
var logicalEvent = new LogicalHL7EventArgs(item);
Platform.Log(LogLevel.Info, String.Format("Procssing HL7LogicalEvent {0}", item.OID));
foreach (ILogicalHL7EventListener listener in new LogicalHL7EventListenerExtensionPoint().CreateExtensions())
{
listener.OnEvent(logicalEvent);
}
}
public void EnqueueEvents(PatientProfile patientProfile)
{
var queueItem = new WorkQueueItem(WorkQueueItemType);
queueItem.ExtendedProperties.Add("EventType", this.EventType);
queueItem.ExtendedProperties.Add("PatientOID", patientProfile.Patient.OID.ToString());
queueItem.ExtendedProperties.Add("PatientProfileOID", patientProfile.OID.ToString());
queueItem.ExtendedProperties.Add("Mrn", patientProfile.Mrn.ToString());
EnqueueWorkItem(queueItem);
}
protected override void ActOnItem(WorkQueueItem item)
{
var actionType = item.ExtendedProperties["ActionType"];
var action = (IPublicationAction)new PublicationActionExtensionPoint().CreateExtension(new ClassNameExtensionFilter(actionType));
var reportPartRef = new EntityRef(item.ExtendedProperties["ReportPartRef"]);
var reportPart = PersistenceScope.CurrentContext.Load<ReportPart>(reportPartRef, EntityLoadFlags.None);
Platform.Log(LogLevel.Info, String.Format("Processing Publication Action {0} for report part {1}", actionType, reportPart.OID));
action.Execute(reportPart, PersistenceScope.CurrentContext);
}
private static WorkQueueItem Create(
string accessionNumber,
EntityRef reportRef,
EntityRef practitionerRef,
EntityRef contactPointRef)
{
var workQueueItem = new WorkQueueItem("Mail/Fax Report");
workQueueItem.ExtendedProperties.Add("AccessionNumber", accessionNumber);
workQueueItem.ExtendedProperties.Add("ReportOID", reportRef.ToString(false, false));
workQueueItem.ExtendedProperties.Add("ExternalPractitionerOID", practitionerRef.ToString(false, false));
workQueueItem.ExtendedProperties.Add("ExternalPractitionerContactPointOID", contactPointRef.ToString(false, false));
return workQueueItem;
}
protected override bool ShouldReschedule(WorkQueueItem item, Exception error, out DateTime rescheduleTime)
{
var actionType = item.ExtendedProperties["ActionType"];
var action = (IPublicationAction)new PublicationActionExtensionPoint().CreateExtension(new ClassNameExtensionFilter(actionType));
if (error == null)
return base.ShouldReschedule(item, null, out rescheduleTime);
if (action.RetryCount >= 0 && item.FailureCount > action.RetryCount)
return base.ShouldReschedule(item, null, out rescheduleTime);
//todo: should we retry? things might end up being processed out of order
rescheduleTime = Platform.Time + _failedItemRetryDelay;
return true;
}
protected override void OnItemSucceeded(WorkQueueItem item)
{
// this method is overridden because image availability work items are never considered complete until they expire
Procedure procedure = ImageAvailabilityWorkQueue.GetProcedure(item, PersistenceScope.CurrentContext);
DateTime nextPollTime = Platform.Time.Add(GetPollingInterval(procedure.ImageAvailability));
if(nextPollTime < item.ExpirationTime)
{
item.Reschedule(nextPollTime);
}
else
{
base.OnItemSucceeded(item);
}
}
public WorkQueueItemSummary CreateWorkQueueItemSummary(WorkQueueItem workQueueItem, IPersistenceContext context)
{
WorkQueueItemSummary summary = new WorkQueueItemSummary();
summary.WorkQueueItemRef = workQueueItem.GetRef();
summary.CreationTime = workQueueItem.CreationTime;
summary.ScheduledTime = workQueueItem.ScheduledTime;
summary.ExpirationTime = workQueueItem.ExpirationTime;
summary.User = workQueueItem.User;
summary.Type = workQueueItem.Type;
summary.Status = EnumUtils.GetEnumValueInfo(workQueueItem.Status, context);
summary.ProcessedTime = workQueueItem.ProcessedTime;
summary.FailureCount = workQueueItem.FailureCount;
summary.FailureDescription = workQueueItem.FailureDescription;
return summary;
}
public WorkQueueItemDetail CreateWorkQueueItemDetail(WorkQueueItem workQueueItem, IPersistenceContext context)
{
WorkQueueItemDetail detail = new WorkQueueItemDetail();
detail.WorkQueueItemRef = workQueueItem.GetRef();
detail.CreationTime = workQueueItem.CreationTime;
detail.ScheduledTime = workQueueItem.ScheduledTime;
detail.ExpirationTime = workQueueItem.ExpirationTime;
detail.User = workQueueItem.User;
detail.Type = workQueueItem.Type;
detail.Status = EnumUtils.GetEnumValueInfo(workQueueItem.Status, context);
detail.ProcessedTime = workQueueItem.ProcessedTime;
detail.FailureCount = workQueueItem.FailureCount;
detail.FailureDescription = workQueueItem.FailureDescription;
detail.ExtendedProperties = ExtendedPropertyUtils.Copy(workQueueItem.ExtendedProperties);
return detail;
}
/// <summary>
/// Gets the procedure associated with the specified work item.
/// </summary>
/// <param name="item"></param>
/// <param name="context"></param>
/// <returns></returns>
public static Procedure GetProcedure(WorkQueueItem item, IPersistenceContext context)
{
EntityRef procedureRef = new EntityRef(item.ExtendedProperties[ProcedureOIDKey]);
return context.Load<Procedure>(procedureRef, EntityLoadFlags.Proxy);
}
protected override bool ShouldReschedule(WorkQueueItem item, Exception error, out DateTime retryTime)
{
// retry unless expired
retryTime = Platform.Time.AddSeconds(_settings.PollingIntervalForError);
return (retryTime < item.ExpirationTime);
}
protected override void ActOnItem(WorkQueueItem item)
{
Procedure procedure = ImageAvailabilityWorkQueue.GetProcedure(item, PersistenceScope.CurrentContext);
procedure.ImageAvailability = _imageAvailabilityStrategy.ComputeProcedureImageAvailability(procedure, PersistenceScope.CurrentContext);
}
public static EntityRef GetTargetRef(WorkQueueItem item)
{
return new EntityRef(item.ExtendedProperties["Target"]);
}
public static WorkQueueItem Create(EntityRef targetRef)
{
var workQueueItem = new WorkQueueItem(Tag);
workQueueItem.ExtendedProperties.Add("Target", targetRef.Serialize());
return workQueueItem;
}
public void EnqueueEvents(Report report)
{
var orders = report.Procedures.Select(rp => rp.Order).Distinct();
var workItems = orders.Select(order =>
{
var queueItem = new WorkQueueItem(WorkQueueItemType);
queueItem.ExtendedProperties.Add("EventType", this.EventType);
queueItem.ExtendedProperties.Add("OrderOID", order.OID.ToString());
queueItem.ExtendedProperties.Add("AccessionNumber", order.AccessionNumber);
queueItem.ExtendedProperties.Add("ReportOID", report.OID.ToString());
return queueItem;
});
EnqueueWorkItems(workItems);
}
protected void EnqueueWorkItem(WorkQueueItem workItem)
{
if (!new LogicalHL7EventSettings().EnableEvents)
return;
PersistenceScope.CurrentContext.Lock(workItem, DirtyState.New);
}