public void RegisterWorkflowTask(IWorkflowTask workflowTask)
{
var taskType = workflowTask.GetType();
var taskName = taskType.Name;
SupportedTaskTypes.Add(taskName, taskType);
}
public void InitializeFromJson(object definition)
{
Definition = (IDictionary <string, dynamic>)definition;
VarName = Definition["var"];
InExpression = Definition["in"];
LoopTask = WorkSharp.CreateFromJSON(Definition["task"]);
}
protected bool CanTransition(IWorkflowTask t)
{
if (!typeof(IDecisionWorkflowTask).IsAssignableFrom(t.GetType()))
{
return(false);
}
return(((IDecisionWorkflowTask)t).CanTransition());
}
public void UpdateTask(IWorkflowTask task)
{
var index = Tasks.FindIndex(t => t.Id == task.Id);
if (index > -1)
{
Tasks[index] = task;
}
}
protected bool CanTransition(IWorkflowTask t, int instantiator)
{
if (!(t is IDecisionWorkflowTask))
{
return(false);
}
return(((IDecisionWorkflowTask)t).CanTransition(instantiator));
}
public IUiWorkflowTask Create(IWorkflowTask task, IUiPoint point)
{
var t = task.GetType();
var entityUi = (IWorkflowTaskEntityUi)WorkflowEntityUiResolver.Instance.Resolve(task);
var cssClass = entityUi.UiAttributes.ContainsKey("class") ? entityUi.UiAttributes["class"] : string.Empty;
var w = new UiWorkflowTask
{
Top = point.Top,
Left = point.Left,
Description = task.Description,
AvailableTransitions = task.AvailableTransitions,
Id = task.Id,
Name = task.Name,
Transitions = task.Transitions,
TypeName = t.FullName,
AssemblyQualifiedTypeName = t.AssemblyQualifiedName,
Class = cssClass,
IsStartTask = task.IsStartTask,
TransitionDescriptions = new Dictionary <string, string>(),
CustomProperties = new Dictionary <string, object>()
};
foreach (var transition in task.AvailableTransitions)
{
w.TransitionDescriptions.Add(transition, entityUi.TransitionDescriptions[transition]);
}
foreach (var p in t.GetProperties())
{
if (p.Name == "Name" || p.Name == "Description" || p.Name == "IsStartTask")
{
continue;
}
if (
p.PropertyType != typeof(string) &&
p.PropertyType != typeof(int) &&
p.PropertyType != typeof(Boolean) &&
p.PropertyType != typeof(IList <string>) &&
p.PropertyType != typeof(IList <int>)
)
{
continue;
}
w.CustomProperties.Add(p.Name, p.GetValue(task, null));
}
return(w);
}
public IUiWorkflowTask Create(IWorkflowTask task, IUiPoint point)
{
var t = task.GetType();
var entityUi = (IWorkflowTaskEntityUi)WorkflowEntityUiResolver.Instance.Resolve(task);
var cssClass = entityUi.UiAttributes.ContainsKey("class") ? entityUi.UiAttributes["class"] : string.Empty;
var w = new UiWorkflowTask
{
Top = point.Top,
Left = point.Left,
Description = task.Description,
AvailableTransitions = task.AvailableTransitions,
Id = task.Id,
Name = task.Name,
Transitions = task.Transitions,
TypeName = t.FullName,
AssemblyQualifiedTypeName = t.AssemblyQualifiedName,
Class = cssClass,
IsStartTask = task.IsStartTask,
TransitionDescriptions = new Dictionary<string, string>(),
CustomProperties = new Dictionary<string, object>()
};
foreach (var transition in task.AvailableTransitions)
{
w.TransitionDescriptions.Add(transition, entityUi.TransitionDescriptions[transition]);
}
foreach(var p in t.GetProperties())
{
if (p.Name == "Name" || p.Name == "Description" || p.Name == "IsStartTask") continue;
if (
p.PropertyType != typeof(string) &&
p.PropertyType != typeof(int) &&
p.PropertyType != typeof(Boolean) &&
p.PropertyType != typeof(IList<string>) &&
p.PropertyType != typeof(IList<int>)
) continue;
w.CustomProperties.Add(p.Name, p.GetValue(task, null));
}
return w;
}
private async Task ProcessTask(Swagger.Api.Task task, IWorkflowTask workflowTask)
{
_logger.LogInformation(GetWorkerName() + $"Processing task:{task.TaskDefName} id:{task.TaskId}");
//TODO: we need to think about this try-catch
try
{
await AckTask(task);
var result = await workflowTask.Execute(task);
result.WorkerId = _workerId;
await UpdateTask(result);
}
catch (Exception e)
{
_logger.LogError(e, GetWorkerName() + "Failed to execute task");
await UpdateTask(task.FailedWithTerminalError(e.ToString()));
}
}
public IWorkflowTaskUiAdapter CreateWorkflowTaskUiAdapter(IWorkflowTask adaptedTask)
{
var t = adaptedTask.GetType();
Log.Debug(string.Format("Getting adapater for {0}", t.AssemblyQualifiedName));
var w = new WorkflowTaskUiAdapter
{
AvailableTransitions = adaptedTask.AvailableTransitions.Count,
TypeName = t.FullName,
AssemblyQualifiedTypeName = t.AssemblyQualifiedName,
IsStartTask = adaptedTask.IsStartTask
};
Log.Debug("Finding WorkflowTaskEntityUi");
var entityUi = (IWorkflowTaskEntityUi)WorkflowEntityUiResolver.Instance.Resolve(adaptedTask);
if (entityUi == null)
{
var message = string.Format("No IWorkflowTaskEntityUi defined for {0}", t.AssemblyQualifiedName);
Log.Fatal(message);
throw new Exception(message);
}
Log.Debug(string.Format("Got entity Ui {0} for {1}", entityUi.GetType().AssemblyQualifiedName, t.AssemblyQualifiedName));
w.Name = entityUi.EntityName;
w.Class = entityUi.UiAttributes.ContainsKey("class") ? entityUi.UiAttributes["class"] : string.Empty;
w.TransitionDescriptions = new Dictionary<string, string>();
foreach (var transition in adaptedTask.AvailableTransitions)
{
w.TransitionDescriptions.Add(transition, entityUi.TransitionDescriptions[transition]);
}
return w;
}
public IWorkflowTaskUiAdapter CreateWorkflowTaskUiAdapter(IWorkflowTask adaptedTask)
{
var t = adaptedTask.GetType();
Log.Debug(string.Format("Getting adapater for {0}", t.AssemblyQualifiedName));
var w = new WorkflowTaskUiAdapter
{
AvailableTransitions = adaptedTask.AvailableTransitions.Count,
TypeName = t.FullName,
AssemblyQualifiedTypeName = t.AssemblyQualifiedName,
IsStartTask = adaptedTask.IsStartTask
};
Log.Debug("Finding WorkflowTaskEntityUi");
var entityUi = (IWorkflowTaskEntityUi)WorkflowEntityUiResolver.Instance.Resolve(adaptedTask);
if (entityUi == null)
{
var message = string.Format("No IWorkflowTaskEntityUi defined for {0}", t.AssemblyQualifiedName);
Log.Fatal(message);
throw new Exception(message);
}
Log.Debug(string.Format("Got entity Ui {0} for {1}", entityUi.GetType().AssemblyQualifiedName, t.AssemblyQualifiedName));
w.Name = entityUi.EntityName;
w.Class = entityUi.UiAttributes.ContainsKey("class") ? entityUi.UiAttributes["class"] : string.Empty;
w.TransitionDescriptions = new Dictionary <string, string>();
foreach (var transition in adaptedTask.AvailableTransitions)
{
w.TransitionDescriptions.Add(transition, entityUi.TransitionDescriptions[transition]);
}
return(w);
}
public void Transition(IWorkflowInstance workflowInstance, IWorkflowTask workflowTask, string transitionName, string comment)
{
if (workflowTask.Transitions.Values.Count == 0)
{
Log.Warn(string.Format("Ending workflow '{0}' as it has no transitions.", workflowInstance.Id));
EndWorkflow(workflowInstance);
TheWorkflowInstanceRepository.Update(workflowInstance);
return;
}
if (!workflowTask.Transitions.ContainsKey(transitionName))
{
LogAndThrow(new WorkflowTaskInvalidTransitionException(string.Format("Inavlid transition '{0}' for task '{1}'", transitionName, workflowTask.Name)));
}
var transitionGuid = workflowTask.Transitions[transitionName];
var transitionTask = workflowInstance.Tasks.SingleOrDefault(task => task.Id == transitionGuid);
if (transitionTask == null)
{
LogAndThrow(new WorkflowTaskInvalidTransitionException(string.Format("Can't transition to task '{0}' in workflow '{1}' as it is not found", transitionGuid.ToString(), workflowInstance.Id)));
}
Log.Info(string.Format("Transitioning workflow '{0}' - '{1}' from '{2}' to '{3}' using transition '{4}'", workflowInstance.Name, workflowInstance.Id, workflowInstance.CurrentTask.Name, transitionTask.Name, transitionName));
workflowInstance.TransitionHistory.Add(string.Format("{0} - Transition '{1}' - '{2}' -> '{3}' {4}", DateTime.Now, transitionName, workflowInstance.CurrentTask.Name, transitionTask.Name, comment));
workflowInstance.CurrentTask = transitionTask;
if (workflowInstance.CurrentTask is IDelayWorkflowTask)
{
((IDelayWorkflowTask)workflowInstance.CurrentTask).StartTime = DateTime.Now;
}
TheWorkflowInstanceRepository.Update(workflowInstance);
}
public void Transition(IWorkflowInstance workflowInstance, IWorkflowTask workflowTask, string transitionName)
{
Transition(workflowInstance, workflowTask, transitionName, "");
}
public void Transition(IWorkflowInstance workflowInstance, IWorkflowTask workflowTask, string transitionName)
{
Log.Info(string.Format("The workflow runtime is transitioning {0} - {1} '{2}' - '{3}'", workflowTask.Name, transitionName, workflowInstance.Id, workflowInstance.Name));
Transition(workflowInstance, workflowTask, transitionName, "");
}
public void AddTask(IWorkflowTask task)
{
Tasks.Add(task);
}
public void Transition(IWorkflowInstance workflowInstance, IWorkflowTask workflowTask, string transitionName, string comment)
{
if (workflowTask.Transitions.Values.Count == 0)
{
Log.Warn(string.Format("Ending workflow '{0}' as it has no transitions.", workflowInstance.Id));
EndWorkflow(workflowInstance);
TheWorkflowInstanceRepository.Update(workflowInstance);
return;
}
if(!workflowTask.Transitions.ContainsKey(transitionName))
{
LogAndThrow(new WorkflowTaskInvalidTransitionException(string.Format("Inavlid transition '{0}' for task '{1}'", transitionName, workflowTask.Name)));
}
var transitionGuid = workflowTask.Transitions[transitionName];
var transitionTask = workflowInstance.Tasks.SingleOrDefault(task => task.Id == transitionGuid);
if(transitionTask == null)
{
LogAndThrow(new WorkflowTaskInvalidTransitionException(string.Format("Can't transition to task '{0}' in workflow '{1}' as it is not found", transitionGuid.ToString(), workflowInstance.Id)));
}
Log.Info(string.Format("Transitioning workflow '{0}' - '{1}' from '{2}' to '{3}' using transition '{4}'", workflowInstance.Name, workflowInstance.Id, workflowInstance.CurrentTask.Name, transitionTask.Name, transitionName));
workflowInstance.TransitionHistory.Add(string.Format("{0} - Transition '{1}' - '{2}' -> '{3}' {4}", DateTime.Now, transitionName, workflowInstance.CurrentTask.Name, transitionTask.Name, comment));
workflowInstance.CurrentTask = transitionTask;
if (workflowInstance.CurrentTask is IDelayWorkflowTask)
{
((IDelayWorkflowTask)workflowInstance.CurrentTask).StartTime = DateTime.Now;
}
TheWorkflowInstanceRepository.Update(workflowInstance);
}
public void AddTask(IWorkflowTask task)
{
Tasks.Add(task);
}
protected bool CanTransition(IWorkflowTask t, int instantiator)
{
if (!(t is IDecisionWorkflowTask)) return false;
return ((IDecisionWorkflowTask) t).CanTransition(instantiator);
}
public void Transition(IWorkflowInstance workflowInstance, IWorkflowTask workflowTask, string transitionName)
{
Log.Info(string.Format("The workflow runtime is transitioning {0} - {1} '{2}' - '{3}'", workflowTask.Name, transitionName, workflowInstance.Id, workflowInstance.Name));
Transition(workflowInstance, workflowTask, transitionName, "");
}
public void UpdateTask(IWorkflowTask task)
{
var index = Tasks.FindIndex(t => t.Id == task.Id);
if (index > -1) Tasks[index] = task;
}
