/// <summary>
/// Sends request for timer value for all timer transitions that are outgoing from the CurrentActivity if timer value is equal 0 or -1
/// </summary>
/// <param name="processInstance">Process instance</param>
public void RequestTimerValue(ProcessInstance processInstance, ActivityDefinition activity = null)
{
if (NeedTimerValue == null)
{
return;
}
var notDefinedTimerTransitions =
processInstance.ProcessScheme.GetTimerTransitionForActivity(activity ?? processInstance.CurrentActivity, ForkTransitionSearchType.Both)
.Where(
t =>
(t.Trigger.Timer.Value.Equals(ImmediateTimerValue) || t.Trigger.Timer.Value.Equals(InfinityTimerValue)) &&
!processInstance.IsParameterExisting(GetTimerValueParameterName(t.Trigger.Timer))).ToList();
if (!notDefinedTimerTransitions.Any())
{
return;
}
var eventArgs = new NeedTimerValueEventArgs(processInstance, notDefinedTimerTransitions);
NeedTimerValue(this, eventArgs);
foreach (var request in eventArgs.TimerValueRequests)
{
if (request.NewValue.HasValue)
{
processInstance.SetParameter(GetTimerValueParameterName(request.Definition), request.NewValue.Value, ParameterPurpose.Persistence);
}
}
}
/// <summary>
/// Resets value of named timer
/// </summary>
/// <param name="processInstance">Process instance</param>
/// <param name="timerName">Timer name in Scheme</param>
public void ResetTimerValue(ProcessInstance processInstance, string timerName)
{
var parameterName = GetTimerValueParameterName(timerName);
if (!processInstance.IsParameterExisting(parameterName))
{
return;
}
processInstance.SetParameter <DateTime?>(parameterName, null, ParameterPurpose.Persistence);
}
private static void MergeWorkflowParameter(ProcessInstance processInstance, string name, JObject value)
{
var workflowParams = GetWorkflowParameters(processInstance, null);
JObject newParams = value;
if (workflowParams.ContainsKey(name))
{
newParams = workflowParams[name] as JObject;
newParams.Merge(value, new JsonMergeSettings {
MergeArrayHandling = MergeArrayHandling.Merge
});
}
var json = JsonConvert.SerializeObject(newParams);
processInstance.SetParameter(name, json, ParameterPurpose.Persistence);
}
/// <summary>
/// Sets new value of named timer
/// </summary>
/// <param name="processInstance">Process instance</param>
/// <param name="timerName">Timer name in Scheme</param>
/// <param name="newValue">New value of the timer</param>
public void SetTimerValue(ProcessInstance processInstance, string timerName, DateTime newValue)
{
var parameterName = GetTimerValueParameterName(timerName);
processInstance.SetParameter(parameterName, newValue, ParameterPurpose.Persistence);
}