public TriggerResult(string triggerName, TransitionContext context, bool canTrigger)
{
TriggerName = triggerName;
_triggerContext = context;
CanTrigger = canTrigger;
IsAborted = _triggerContext.TransitionAborted;
Errors = _triggerContext.Errors;
}
/// <summary>
/// Returns the workflow variable from the TransitionContext.
/// </summary>
/// <typeparam name="TVariable"></typeparam>
/// <param name="transitionContext"></param>
/// <returns></returns>
public static TVariable ReturnVariable <TVariable>(
this TransitionContext transitionContext
) where TVariable : WorkflowVariableBase
{
return(transitionContext.GetVariable <TVariable>(
KeyBuilder.ToKey(typeof(TVariable))
));
}
private static TriggerResult CreateTriggerResult(
string triggerName,
TransitionContext context,
Transition transition)
{
var canTrigger = transition != null && transition.CanMakeTransition(context);
return(new TriggerResult(triggerName, context, canTrigger));
}
private static TransitionContext CreateTransitionContext(
IWorkflow instance,
Dictionary <string, WorkflowVariableBase> variables)
{
var context = new TransitionContext(instance);
if (variables != null)
{
foreach (var variable in variables)
{
context.SetVariable(variable.Key, variable.Value);
}
}
return(context);
}
private TriggerResult CanMakeTransition(
TransitionContext context,
string triggerName,
IWorkflow instance)
{
var transition = GetTransition(triggerName, instance);
var triggerResult = CreateTriggerResult(triggerName, context, transition);
if (transition != null)
{
return(triggerResult);
}
context.AddError($"Transition for trigger '{triggerName}' not found!");
return(triggerResult);
}
/// <summary>
/// Checks whether the workflow variable is present in the TransitionContext.
/// </summary>
/// <typeparam name="TVariable"></typeparam>
/// <param name="transitionContext"></param>
/// <returns></returns>
public static bool HasVariable <TVariable>(
this TransitionContext transitionContext
)
{
return(transitionContext.ContainsKey(KeyBuilder.ToKey(typeof(TVariable))));
}