public static void isValid_NextStates(StateChangeDefinition obj, PropertyIsValidEventArgs e)
{
// Check if next states are member of the same workflow definition
if (obj.StateDefinition != null)
{
var invalidNextStates = obj.NextStates.Where(ns => ns.WFDefinition != obj.StateDefinition.WFDefinition).ToList();
e.IsValid = invalidNextStates.Count == 0;
e.Error = e.IsValid ? string.Empty : "At least one next state does not belong to the same workflow. These states are: " + string.Join(", ", invalidNextStates.Select(ns => ns.Name).ToArray());
}
}
public static void isValid_InvokedByActions(StateChangeDefinition obj, PropertyIsValidEventArgs e)
{
// Check if actions invoke only one state change
if (obj.StateDefinition != null)
{
var allOtherActions = obj.StateDefinition.StateChanges.Except(new[] { obj }).SelectMany(sc => sc.InvokedByActions);
var actions = allOtherActions.Intersect(obj.InvokedByActions).ToList();
e.IsValid = actions.Count == 0;
e.Error = e.IsValid ? string.Empty : "A Action is invoking more than one state change. This state change is one of it. Actions found: " + string.Join(", ", actions.Select(a => a.Action.Name).ToArray());
}
}
public static void Execute(StateChangeDefinition obj, Zetbox.Basic.Workflow.State current)
{
var identity = _idResolver.GetCurrent();
Logging.Log.InfoFormat("Executing workflow StateChange [{0}].{1}", current, obj.Name);
var nextStates = obj.NextStates.ToList();
// call invocation
if (_invocationExec.HasValidInvocation(obj))
{
Logging.Log.DebugFormat(" calling invocation [{0}].{1}", obj.ImplementorName, obj.MemberName);
nextStates = _invocationExec.CallInvocation <List <StateDefinition> >(obj, typeof(StateChangeInvocationPrototype), obj, current, identity);
}
Logging.Log.InfoFormat(" nextStates.Count = {0}", nextStates.Count);
var stateEnds = true;
if (nextStates == null || nextStates.Count == 0)
{
// workflow branch ends here
Logging.Log.Info("No next states, workflow will end");
}
else
{
// change current state
foreach (var stateDef in nextStates)
{
if (stateDef == current.StateDefinition)
{
Logging.Log.Info("Staying in current state");
stateEnds = false;
}
else
{
StateActions.CreateState(current.Instance, stateDef);
}
}
}
// set on left
if (stateEnds)
{
current.LeftOn = DateTime.Now;
current.Persons.Clear();
current.Groups.Clear();
current.ScheduledActions.Clear();
}
}
public static void NotifyDeleting(StateChangeDefinition obj)
{
obj.InvokedByActions.Clear();
obj.NextStates.Clear();
obj.StateDefinition = null;
}
public static void ToString(StateChangeDefinition obj, MethodReturnEventArgs <string> e)
{
e.Result = obj.Name;
}
