internal static void InitializeCorrelationTokenCollection(Activity activity, CorrelationToken correlator)
{
if ((correlator != null) && !string.IsNullOrEmpty(correlator.OwnerActivityName))
{
string ownerActivityName = correlator.OwnerActivityName;
Activity activityByName = activity.GetActivityByName(ownerActivityName);
if (activityByName == null)
{
activityByName = Helpers.ParseActivityForBind(activity, ownerActivityName);
}
if (activityByName == null)
{
throw new ArgumentException("ownerActivity");
}
CorrelationTokenCollection tokens = activityByName.GetValue(CorrelationTokenCollection.CorrelationTokenCollectionProperty) as CorrelationTokenCollection;
if (tokens == null)
{
tokens = new CorrelationTokenCollection();
activityByName.SetValue(CorrelationTokenCollection.CorrelationTokenCollectionProperty, tokens);
}
if (!tokens.Contains(correlator.Name))
{
tokens.Add(correlator);
}
}
}
private static void CollectCompensatableCompletedContexts(ActivityExecutionContext context, Activity targetActivity, SortedDictionary<int, CompensationInfo> sortedListOfCompensatableTargets, bool immediateCompensation)
{
ActivityExecutionContextManager executionContextManager = context.ExecutionContextManager;
for (int i = executionContextManager.CompletedExecutionContexts.Count - 1; i >= 0; i--)
{
ActivityExecutionContextInfo targetExecutionInfo = executionContextManager.CompletedExecutionContexts[i];
if (((byte) (targetExecutionInfo.Flags & PersistFlags.NeedsCompensation)) != 0)
{
Activity activityByName = targetActivity.GetActivityByName(targetExecutionInfo.ActivityQualifiedName, true);
if ((activityByName != null) && (!immediateCompensation || !IsActivityInBackWorkBranch(targetActivity, activityByName)))
{
sortedListOfCompensatableTargets.Add(targetExecutionInfo.CompletedOrderId, new CompensationInfo(targetExecutionInfo, executionContextManager));
}
}
}
}
public override bool Evaluate(Activity activity, IServiceProvider provider)
{
if (activity == null)
{
throw new ArgumentNullException("activity");
}
if (string.IsNullOrEmpty(this._condition))
{
throw new InvalidOperationException(SR.GetString("Error_MissingConditionName", new object[] { activity.Name }));
}
RuleDefinitions ruleDefinitions = null;
if (string.IsNullOrEmpty(this.declaringActivityId))
{
CompositeActivity declaringActivity = null;
ruleDefinitions = GetRuleDefinitions(activity, out declaringActivity);
}
else
{
ruleDefinitions = (RuleDefinitions) activity.GetActivityByName(this.declaringActivityId).GetValue(RuleDefinitions.RuleDefinitionsProperty);
}
if ((ruleDefinitions == null) || (ruleDefinitions.Conditions == null))
{
throw new InvalidOperationException(SR.GetString("Error_MissingRuleConditions"));
}
RuleCondition condition = ruleDefinitions.Conditions[this._condition];
if (condition == null)
{
return true;
}
Activity enclosingActivity = Helpers.GetEnclosingActivity(activity);
RuleValidation validation = new RuleValidation(enclosingActivity);
if (!condition.Validate(validation))
{
throw new InvalidOperationException(string.Format(CultureInfo.CurrentCulture, Messages.ConditionValidationFailed, new object[] { this._condition }));
}
RuleExecution execution = new RuleExecution(validation, enclosingActivity, provider as ActivityExecutionContext);
return condition.Evaluate(execution);
}
internal static void InitializeCorrelationTokenCollection(Activity activity, CorrelationToken correlator)
{
if (correlator != null && !String.IsNullOrEmpty(correlator.OwnerActivityName))
{
string ownerActivityId = correlator.OwnerActivityName;
Activity owner = activity.GetActivityByName(ownerActivityId);
if (owner == null)
owner = System.Workflow.Activities.Common.Helpers.ParseActivityForBind(activity, ownerActivityId);
if (owner == null)
throw new ArgumentException("ownerActivity");
CorrelationTokenCollection collection = owner.GetValue(CorrelationTokenCollection.CorrelationTokenCollectionProperty) as CorrelationTokenCollection;
if (collection == null)
{
collection = new CorrelationTokenCollection();
owner.SetValue(CorrelationTokenCollection.CorrelationTokenCollectionProperty, collection);
}
if (!collection.Contains(correlator.Name))
{
collection.Add(correlator);
}
}
}
private static bool CollectCompensatableActiveContexts(ActivityExecutionContext context, Activity targetActivity, SortedDictionary<int, CompensationInfo> sortedListOfCompensatableTargets, bool immediateCompensation)
{
foreach (ActivityExecutionContext context2 in context.ExecutionContextManager.ExecutionContexts)
{
if ((targetActivity.GetActivityByName(context2.Activity.QualifiedName, true) != null) && (!immediateCompensation || !IsActivityInBackWorkBranch(targetActivity, context2.Activity)))
{
if ((context2.Activity is ICompensatableActivity) && (((context2.Activity.ExecutionStatus == ActivityExecutionStatus.Compensating) || (context2.Activity.ExecutionStatus == ActivityExecutionStatus.Faulting)) || (context2.Activity.ExecutionStatus == ActivityExecutionStatus.Canceling)))
{
return true;
}
if (context2.Activity is CompositeActivity)
{
Activity[] compensatableChildren = GetCompensatableChildren(context2.Activity as CompositeActivity);
if (compensatableChildren != null)
{
int key = 0;
foreach (Activity activity in compensatableChildren)
{
int num2 = (int) activity.GetValue(Activity.CompletedOrderIdProperty);
if (key < num2)
{
key = num2;
}
}
if (key != 0)
{
sortedListOfCompensatableTargets.Add(key, new CompensationInfo(context2));
}
}
CollectCompensatableActiveContexts(context2, targetActivity, sortedListOfCompensatableTargets, immediateCompensation);
CollectCompensatableCompletedContexts(context2, targetActivity, sortedListOfCompensatableTargets, immediateCompensation);
}
}
}
return false;
}
private static void CompleteRevokedExecutionContext(Activity targetActivity, ActivityExecutionContext context)
{
ActivityExecutionContext[] array = new ActivityExecutionContext[context.ExecutionContextManager.ExecutionContexts.Count];
context.ExecutionContextManager.ExecutionContexts.CopyTo(array, 0);
foreach (ActivityExecutionContext context2 in array)
{
if (targetActivity.GetActivityByName(context2.Activity.QualifiedName, true) != null)
{
if (context2.Activity.ExecutionStatus == ActivityExecutionStatus.Closed)
{
CompleteRevokedExecutionContext(context2.Activity, context2);
}
context.ExecutionContextManager.CompleteExecutionContext(context2);
}
}
}
private static bool IsOwnerActivitySame(string ownerActivityName, string existingOwnerActivityName, Activity currentActivity, Activity existingActivity)
{
if (ownerActivityName.Equals(existingOwnerActivityName))
{
return true;
}
Activity activityByName = currentActivity.GetActivityByName(ownerActivityName);
if (activityByName == null)
{
activityByName = Helpers.ParseActivityForBind(currentActivity, ownerActivityName);
}
Activity activity2 = currentActivity.GetActivityByName(existingOwnerActivityName);
if (activity2 == null)
{
activity2 = Helpers.ParseActivityForBind(existingActivity, existingOwnerActivityName);
}
return (((activityByName != null) && (activity2 != null)) && activityByName.QualifiedName.Equals(activity2.QualifiedName));
}
public override bool Evaluate(Activity activity, IServiceProvider provider)
{
if (activity == null)
{
throw new ArgumentNullException("activity");
}
if (string.IsNullOrEmpty(this._condition))
{
throw new InvalidOperationException(SR.GetString(SR.Error_MissingConditionName, activity.Name));
}
RuleDefinitions defs = null;
if (string.IsNullOrEmpty(this.declaringActivityId))
{
// No Runtime Initialization.
CompositeActivity declaringActivity = null;
defs = RuleConditionReference.GetRuleDefinitions(activity, out declaringActivity);
}
else
{
// Runtime Initialized.
defs = (RuleDefinitions)activity.GetActivityByName(declaringActivityId).GetValue(RuleDefinitions.RuleDefinitionsProperty);
}
if ((defs == null) || (defs.Conditions == null))
{
throw new InvalidOperationException(SR.GetString(SR.Error_MissingRuleConditions));
}
RuleCondition conditionDefinitionToEvaluate = defs.Conditions[this._condition];
if (conditionDefinitionToEvaluate != null)
{
Activity contextActivity = System.Workflow.Activities.Common.Helpers.GetEnclosingActivity(activity);
RuleValidation validation = new RuleValidation(contextActivity);
if (!conditionDefinitionToEvaluate.Validate(validation))
{
string message = string.Format(CultureInfo.CurrentCulture, Messages.ConditionValidationFailed, this._condition);
throw new InvalidOperationException(message);
}
RuleExecution context = new RuleExecution(validation, contextActivity, provider as ActivityExecutionContext);
return conditionDefinitionToEvaluate.Evaluate(context);
}
else
{
// no condition, so defaults to true
return true;
}
}
private static bool IsOwnerActivitySame(string ownerActivityName, string existingOwnerActivityName, Activity currentActivity, Activity existingActivity)
{
if (ownerActivityName.Equals(existingOwnerActivityName))
return true;
Activity owner = currentActivity.GetActivityByName(ownerActivityName);
if (owner == null)
owner = Helpers.ParseActivityForBind(currentActivity, ownerActivityName);
Activity existingowner = currentActivity.GetActivityByName(existingOwnerActivityName);
if (existingowner == null)
existingowner = Helpers.ParseActivityForBind(existingActivity, existingOwnerActivityName);
if (owner != null && existingowner != null && owner.QualifiedName.Equals(existingowner.QualifiedName))
return true;
return false;
}
private ActivityExecutionStatus CompensateTargetActivity(ActivityExecutionContext context)
{
Activity targetActivity = null;
Activity commonParentActivity = context.Activity;
do
{
commonParentActivity = commonParentActivity.Parent;
targetActivity = commonParentActivity.GetActivityByName(this.TargetActivityName, true);
} while (targetActivity == null);
if (targetActivity is ICompensatableActivity &&
targetActivity.ExecutionStatus == ActivityExecutionStatus.Closed &&
targetActivity.ExecutionResult == ActivityExecutionResult.Succeeded)
{
// same execution context
targetActivity.RegisterForStatusChange(Activity.ClosedEvent, this);
context.CompensateActivity(targetActivity);
return(context.Activity.ExecutionStatus);
}
else if (targetActivity.ExecutionStatus == ActivityExecutionStatus.Initialized)
{
// Template activity
// walk through active contexts
ActivityExecutionContextManager contextManager = context.ExecutionContextManager;
foreach (ActivityExecutionContext activeContext in contextManager.ExecutionContexts)
{
if (targetActivity.GetActivityByName(activeContext.Activity.QualifiedName, true) != null)
{
if (activeContext.Activity.ExecutionStatus == ActivityExecutionStatus.Compensating ||
activeContext.Activity.ExecutionStatus == ActivityExecutionStatus.Faulting ||
activeContext.Activity.ExecutionStatus == ActivityExecutionStatus.Canceling
)
{
return(context.Activity.ExecutionStatus);
}
}
}
// walk through all completed execution contexts
for (int index = contextManager.CompletedExecutionContexts.Count - 1; index >= 0; index--)
{
//only compensate direct child during explicit compensation
ActivityExecutionContextInfo completedActivityInfo = contextManager.CompletedExecutionContexts[index];
if (((completedActivityInfo.Flags & PersistFlags.NeedsCompensation) != 0))
{
ActivityExecutionContext revokedExecutionContext = contextManager.DiscardPersistedExecutionContext(completedActivityInfo);
if (revokedExecutionContext.Activity is ICompensatableActivity)
{
revokedExecutionContext.Activity.RegisterForStatusChange(Activity.ClosedEvent, this);
revokedExecutionContext.CompensateActivity(revokedExecutionContext.Activity);
}
return(context.Activity.ExecutionStatus);
}
}
}
else
{
// currently faulting, canceling, or compensating
if (CompensationUtils.TryCompensateLastCompletedChildActivity(context, targetActivity, this))
{
return(context.Activity.ExecutionStatus);
}
}
return(ActivityExecutionStatus.Closed);
}
public override bool Run(IWorkflowCoreRuntime workflowCoreRuntime)
{
// get state reader
Activity contextActivity = workflowCoreRuntime.GetContextActivityForId(this.ContextId);
Activity activity = contextActivity.GetActivityByName(this.activityName);
using (workflowCoreRuntime.SetCurrentActivity(activity))
{
using (ActivityExecutionContext activityExecutionContext = new ActivityExecutionContext(activity))
{
ActivityExecutor activityExecutor = ActivityExecutors.GetActivityExecutor(activity);
switch (this.operation)
{
case ActivityOperationType.Execute:
if (activity.ExecutionStatus == ActivityExecutionStatus.Executing)
{
try
{
workflowCoreRuntime.RaiseActivityExecuting(activity);
ActivityExecutionStatus newStatus = activityExecutor.Execute(activity, activityExecutionContext);
if (newStatus == ActivityExecutionStatus.Closed)
{
activityExecutionContext.CloseActivity();
}
else if (newStatus != ActivityExecutionStatus.Executing)
{
throw new InvalidOperationException(SR.GetString(SR.InvalidExecutionStatus, activity.QualifiedName, newStatus.ToString(), ActivityExecutionStatus.Executing.ToString()));
}
}
catch (Exception e)
{
System.Workflow.Runtime.WorkflowTrace.Runtime.TraceEvent(TraceEventType.Error, 1, "Execute of Activity {0} threw {1}", activity.QualifiedName, e.ToString());
throw;
}
}
break;
case ActivityOperationType.Cancel:
if (activity.ExecutionStatus == ActivityExecutionStatus.Canceling)
{
try
{
ActivityExecutionStatus newStatus = activityExecutor.Cancel(activity, activityExecutionContext);
if (newStatus == ActivityExecutionStatus.Closed)
{
activityExecutionContext.CloseActivity();
}
else if (newStatus != ActivityExecutionStatus.Canceling)
{
throw new InvalidOperationException(SR.GetString(SR.InvalidExecutionStatus, activity.QualifiedName, newStatus.ToString(), ActivityExecutionStatus.Canceling.ToString()));
}
}
catch (Exception e)
{
System.Workflow.Runtime.WorkflowTrace.Runtime.TraceEvent(TraceEventType.Error, 1, "Cancel of Activity {0} threw {1}", activity.QualifiedName, e.ToString());
throw;
}
}
break;
case ActivityOperationType.Compensate:
if (activity.ExecutionStatus == ActivityExecutionStatus.Compensating)
{
try
{
ActivityExecutionStatus newStatus = activityExecutor.Compensate(activity, activityExecutionContext);
if (newStatus == ActivityExecutionStatus.Closed)
{
activityExecutionContext.CloseActivity();
}
else if (newStatus != ActivityExecutionStatus.Compensating)
{
throw new InvalidOperationException(SR.GetString(SR.InvalidExecutionStatus, activity.QualifiedName, newStatus.ToString(), ActivityExecutionStatus.Compensating.ToString()));
}
}
catch (Exception e)
{
System.Workflow.Runtime.WorkflowTrace.Runtime.TraceEvent(TraceEventType.Error, 1, "Compensate of Activity {0} threw {1}", activity.QualifiedName, e.ToString());
throw;
}
}
break;
case ActivityOperationType.HandleFault:
if (activity.ExecutionStatus == ActivityExecutionStatus.Faulting)
{
try
{
ActivityExecutionStatus newStatus = activityExecutor.HandleFault(activity, activityExecutionContext, this.exceptionToDeliver);
if (newStatus == ActivityExecutionStatus.Closed)
{
activityExecutionContext.CloseActivity();
}
else if (newStatus != ActivityExecutionStatus.Faulting)
{
throw new InvalidOperationException(SR.GetString(SR.InvalidExecutionStatus, activity.QualifiedName, newStatus.ToString(), ActivityExecutionStatus.Faulting.ToString()));
}
}
catch (Exception e)
{
System.Workflow.Runtime.WorkflowTrace.Runtime.TraceEvent(TraceEventType.Error, 1, "Compensate of Activity {0} threw {1}", activity.QualifiedName, e.ToString());
throw;
}
}
break;
}
}
}
return(true);
}