protected internal override Activity LoadCompletedContextActivity(Guid id, Activity outerActivity)
{
using (PersistenceDBAccessor accessor = new PersistenceDBAccessor(this._dbResourceAllocator, this._enableRetries))
{
return(WorkflowPersistenceService.RestoreFromDefaultSerializedForm(accessor.RetrieveCompletedScope(id), outerActivity));
}
}
protected internal override Activity LoadWorkflowInstanceState(Guid id)
{
using (PersistenceDBAccessor accessor = new PersistenceDBAccessor(this._dbResourceAllocator, this._enableRetries))
{
WorkflowTrace.Host.TraceEvent(TraceEventType.Information, 0, "SqlWorkflowPersistenceService({0}):Loading instance {1}", new object[] { this._serviceInstanceId.ToString(), id.ToString() });
return(WorkflowPersistenceService.RestoreFromDefaultSerializedForm(accessor.RetrieveInstanceState(id, this._serviceInstanceId, this.OwnershipTimeout), null));
}
}
protected internal override void SaveCompletedContextActivity(Activity completedScopeActivity)
{
PendingWorkItem workItem = new PendingWorkItem {
Type = PendingWorkItem.ItemType.CompletedScope,
SerializedActivity = WorkflowPersistenceService.GetDefaultSerializedForm(completedScopeActivity),
InstanceId = WorkflowEnvironment.WorkflowInstanceId,
StateId = ((ActivityExecutionContextInfo)completedScopeActivity.GetValue(Activity.ActivityExecutionContextInfoProperty)).ContextGuid
};
WorkflowEnvironment.WorkBatch.Add(this, workItem);
}
protected internal override void SaveWorkflowInstanceState(Activity rootActivity, bool unlock)
{
if (rootActivity == null)
{
throw new ArgumentNullException("rootActivity");
}
WorkflowStatus workflowStatus = WorkflowPersistenceService.GetWorkflowStatus(rootActivity);
bool isBlocked = WorkflowPersistenceService.GetIsBlocked(rootActivity);
string suspendOrTerminateInfo = WorkflowPersistenceService.GetSuspendOrTerminateInfo(rootActivity);
Guid guid = (Guid)rootActivity.GetValue(Activity.ActivityContextGuidProperty);
PendingWorkItem workItem = new PendingWorkItem {
Type = PendingWorkItem.ItemType.Instance,
InstanceId = WorkflowEnvironment.WorkflowInstanceId
};
if ((workflowStatus != WorkflowStatus.Completed) && (workflowStatus != WorkflowStatus.Terminated))
{
workItem.SerializedActivity = WorkflowPersistenceService.GetDefaultSerializedForm(rootActivity);
}
else
{
workItem.SerializedActivity = new byte[0];
}
workItem.Status = (int)workflowStatus;
workItem.Blocked = isBlocked ? 1 : 0;
workItem.Info = suspendOrTerminateInfo;
workItem.StateId = guid;
workItem.Unlocked = unlock;
TimerEventSubscription subscription = ((TimerEventSubscriptionCollection)rootActivity.GetValue(TimerEventSubscriptionCollection.TimerCollectionProperty)).Peek();
workItem.NextTimer = (subscription == null) ? SqlDateTime.MaxValue : subscription.ExpiresAt;
if (workItem.Info == null)
{
workItem.Info = "";
}
WorkflowTrace.Host.TraceEvent(TraceEventType.Information, 0, "SqlWorkflowPersistenceService({4}):Committing instance {0}, Blocked={1}, Unlocked={2}, NextTimer={3}", new object[] { guid.ToString(), workItem.Blocked, workItem.Unlocked, workItem.NextTimer.Value.ToLocalTime(), this._serviceInstanceId.ToString() });
WorkflowEnvironment.WorkBatch.Add(this, workItem);
}
public SkipUnloadOnFirstIdleWorkflowPersistenceService(WorkflowPersistenceService inner)
{
if (inner == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("inner");
}
this.inner = inner;
}