internal void RevertToCheckpointState()
{
Activity rootActivity = null;
this.clonedInstanceStateStream.Position = 0L;
using (new RuntimeEnvironment(this.workflowExecutor.WorkflowRuntime))
{
rootActivity = Activity.Load(this.clonedInstanceStateStream, this.workflowDefinition);
}
rootActivity.SetValue(WorkflowExecutor.TrackingListenerBrokerProperty, this.workflowExecutor.RootActivity.GetValue(WorkflowExecutor.TrackingListenerBrokerProperty));
WorkflowExecutor newWorkflowExecutor = new WorkflowExecutor(Guid.Empty);
newWorkflowExecutor.Initialize(rootActivity, this.workflowExecutor.WorkflowRuntime, this.workflowExecutor);
Activity contextActivityForId = newWorkflowExecutor.GetContextActivityForId(this.activityContextId);
Activity activityByName = contextActivityForId.GetActivityByName(this.activityQualifiedName);
using (new ServiceEnvironment(activityByName))
{
using (newWorkflowExecutor.SetCurrentActivity(activityByName))
{
using (ActivityExecutionContext context = new ActivityExecutionContext(activityByName))
{
context.Invoke<EventArgs>(this.callbackHandler, this.callbackData);
}
}
}
newWorkflowExecutor.BatchCollection.WorkItemOrderId = this.workflowExecutor.BatchCollection.WorkItemOrderId;
foreach (KeyValuePair<object, WorkBatch> pair in this.workflowExecutor.BatchCollection)
{
pair.Value.SetWorkBatchCollection(newWorkflowExecutor.BatchCollection);
Activity key = pair.Key as Activity;
if (key != null)
{
Activity activity5 = contextActivityForId.GetActivityByName(key.QualifiedName);
newWorkflowExecutor.BatchCollection.Add(activity5, pair.Value);
}
}
this.workflowExecutor.BatchCollection.Clear();
newWorkflowExecutor.CompletedContextActivities = this.completedContextActivities;
this.workflowExecutor.WorkflowRuntime.ReplaceWorkflowExecutor(this.workflowExecutor.InstanceId, this.workflowExecutor, newWorkflowExecutor);
if (!this.suspendOnRevert)
{
newWorkflowExecutor.Scheduler.Resume();
}
else
{
newWorkflowExecutor.SuspendOnIdle(this.suspendOnRevertInfo);
}
this.DisposeCheckpointState();
}
internal void RevertToCheckpointState()
{
Debug.Assert(this.clonedInstanceStateStream != null, "cloned instance-state stream null at restore time");
// deserialize only on first access
Activity clonedRootActivity = null;
this.clonedInstanceStateStream.Position = 0;
using (RuntimeEnvironment runtimeEnv = new RuntimeEnvironment(this.workflowExecutor.WorkflowRuntime))
{
clonedRootActivity = Activity.Load(this.clonedInstanceStateStream, (Activity)this.workflowDefinition);
}
Debug.Assert(clonedRootActivity != null);
//
// Set the trackingListenerBroker before initializing the executor so the tracking
// runtime gets a reference to the correct object
clonedRootActivity.SetValue(WorkflowExecutor.TrackingListenerBrokerProperty, workflowExecutor.RootActivity.GetValue(WorkflowExecutor.TrackingListenerBrokerProperty));
// create the new workflowExecutor
WorkflowExecutor newWorkflowExecutor = new WorkflowExecutor(Guid.Empty); // use a dummy guid while swapping executors
newWorkflowExecutor.Initialize(clonedRootActivity, this.workflowExecutor.WorkflowRuntime, this.workflowExecutor);
// enqueue the activity notifier
Activity activityContext = newWorkflowExecutor.GetContextActivityForId(this.activityContextId);
Activity activity = activityContext.GetActivityByName(this.activityQualifiedName);
using (new ServiceEnvironment(activity))
{
using (newWorkflowExecutor.SetCurrentActivity(activity))
{
using (ActivityExecutionContext executionContext = new ActivityExecutionContext(activity))
executionContext.Invoke<EventArgs>(this.callbackHandler, this.callbackData);
}
}
//
// Push the batch item ordering id to the new instance
newWorkflowExecutor.BatchCollection.WorkItemOrderId = this.workflowExecutor.BatchCollection.WorkItemOrderId;
// replace pending batch items
foreach (KeyValuePair<object, WorkBatch> batch in this.workflowExecutor.BatchCollection)
{
batch.Value.SetWorkBatchCollection(newWorkflowExecutor.BatchCollection);
Activity oldActivity = batch.Key as Activity;
// no need to add the transient state batch
if (oldActivity != null)
{
Activity newactivity = activityContext.GetActivityByName(oldActivity.QualifiedName);
newWorkflowExecutor.BatchCollection.Add(newactivity, batch.Value);
}
}
this.workflowExecutor.BatchCollection.Clear();
Debug.Assert(this.completedContextActivities != null);
newWorkflowExecutor.CompletedContextActivities = this.completedContextActivities;
// replace with the WorkflowRuntime
Debug.Assert(this.workflowExecutor.IsInstanceValid);
this.workflowExecutor.WorkflowRuntime.ReplaceWorkflowExecutor(this.workflowExecutor.InstanceId, this.workflowExecutor, newWorkflowExecutor);
// now resume or suspend the scheduler as needed
if (!this.suspendOnRevert)
{
// get the new one going
newWorkflowExecutor.Scheduler.Resume();
}
else
{
// this call will be old scheduler's thread
newWorkflowExecutor.SuspendOnIdle(this.suspendOnRevertInfo);
}
DisposeCheckpointState();
}
