internal NextActivityKey Execute(WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
var execParameters = new ActivityParameterDictionary();
foreach (var param in parameters.Values)
{
execParameters.Add(param);
}
foreach (var param in Parameters)
{
if (!execParameters.ContainsKey(param.Name))
{
execParameters.Add(param);
}
}
return(_Execute(context, execParameters));
}
private Activity GetStartActivity(WorkflowExecutionContext context)
{
if (context.Restoring)
{
return(Activities[context.GetActivityNameToRestore()]);
}
if (StartActivity == null)
{
return(Activities.Values.First());
}
var startActivityFullName = WorkflowSchemeParser.CreateFullActivityName(StartActivity, Name);
if (!Activities.ContainsKey(startActivityFullName))
{
throw new ActivityExecutionException(
"Начальное действие не найдено: " + startActivityFullName, this, context);
}
return(Activities[startActivityFullName]);
}
internal NextActivityKey ExecuteNestedActivity(
WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
InitProperties(context, parameters);
var nextActivityKey = context.DefaultNextActivityKey;
var currentExecutingActivity = GetStartActivity(context);
while (currentExecutingActivity != null)
{
var returnActivity = currentExecutingActivity as ReturnActivity;
if (returnActivity != null)
{
return(returnActivity.Result);
}
try
{
nextActivityKey = currentExecutingActivity.Execute(context);
}
catch (ActivityExecutionInterruptException ex)
{
currentExecutingActivity = context.GetToggledActivity(ex);
continue;
}
catch (Exception ex)
{
throw new ActivityExecutionException(
"Ошибка выполнения действия", ex, currentExecutingActivity, context);
}
currentExecutingActivity = GetNextActivity(currentExecutingActivity, nextActivityKey);
if (currentExecutingActivity == null)
{
return(context.DefaultNextActivityKey);
}
}
return(nextActivityKey);
}
public ActivityExecutionException(string message, Activity activity, WorkflowExecutionContext context)
: this(message, null, activity, context)
{
}
private static string FormatMessage(string message, Activity activity, WorkflowExecutionContext context)
{
return(string.Format("[действие: {0}; контекст: {1}] {2}", activity, context, message));
}
public ActivityExecutionException(
string message, Exception innerEx, Activity activity, WorkflowExecutionContext context)
: base(FormatMessage(message, activity, context), innerEx)
{
Activity = activity;
}
public NextActivityKey Call(WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
return((NextActivityKey)Call(new object[] { context, parameters }));
}
internal NextActivityKey MonitorExit(
WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
context.MonitorExit(LockName);
return context.DefaultNextActivityKey;
}
protected override void Initialize(WorkflowExecutionContext context)
{
base.Initialize(context);
StartActivity = null;
}
internal NextActivityKey SubscribeToEvent(
WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
context.SubscribeToEvent(Event, Handler, HandlingType);
return(context.DefaultNextActivityKey);
}
public void Call(WorkflowExecutionContext context)
{
Call(new object[] { context });
}
internal NextActivityKey ExecuteReferencedActivity(
WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
return(ActivityForExecute.Execute(context, parameters));
}
internal NextActivityKey Execute(WorkflowExecutionContext context)
{
return(_Execute(context, Parameters));
}
public static void Save(WorkflowExecutionContext context, Stream stream)
{
s_formatter.Serialize(stream, context.GetState());
}
internal NextActivityKey UnsubscribeFromEvent(
WorkflowExecutionContext context, ActivityParameterDictionary parameters)
{
context.UnsubscribeFromEvent(Event, Handler);
return(context.DefaultNextActivityKey);
}