public void Null_argument_tests()
{
IChildWorkflowItem childWorkflowItem = null;
Assert.Throws <ArgumentNullException>(() => childWorkflowItem.Result());
Assert.Throws <ArgumentNullException>(() => childWorkflowItem.Result <int>());
Assert.Throws <ArgumentNullException>(() => childWorkflowItem.HasCompleted());
Assert.Throws <ArgumentNullException>(() => childWorkflowItem.HasFailed());
Assert.Throws <ArgumentNullException>(() => childWorkflowItem.HasTimedout());
}
/// <summary>
/// Access completed result of child workflow as dynamic object. If completed result is JSON object then you can directly access its properties.
/// Throws exception when last event is not <see cref="ChildWorkflowCompletedEvent"/>.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public static dynamic Result(this IChildWorkflowItem item)
{
Ensure.NotNull(item, nameof(item));
var completedEvent = item.LastEvent() as ChildWorkflowCompletedEvent;
if (completedEvent == null)
{
throw new InvalidOperationException(Resources.ChildWorkflow_result_can_not_be_accessed);
}
return(completedEvent.Result());
}
/// <summary>
/// Retruns the <see cref="ChildWorkflowFailedEvent"/> and if it is the last event, otherwise null is returned.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public static ChildWorkflowFailedEvent LastFailedEvent(this IChildWorkflowItem item)
{
Ensure.NotNull(item, nameof(item));
return(item.LastEvent() as ChildWorkflowFailedEvent);
}
/// <summary>
/// Returns true if last event of child workflow is <see cref="ChildWorkflowCancelledEvent"/>
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public static bool HasCancelled(this IChildWorkflowItem item)
{
Ensure.NotNull(item, nameof(item));
return(item.LastEvent() is ChildWorkflowCancelledEvent);
}
/// <summary> /// Returns true if last event of child workflow is <see cref="ChildWorkflowTerminatedEvent"/> /// </summary> /// <param name="item"></param> /// <returns></returns> public static bool HasTerminated(this IChildWorkflowItem item) => item.LastTerminatedEvent() != null;
/// <summary> /// Returns true if the last event of child workflow is <see cref="ChildWorkflowTimedoutEvent"/>. /// </summary> /// <param name="item"></param> /// <returns></returns> public static bool HasTimedout(this IChildWorkflowItem item) => item.LastTimedoutEvent() != null;
/// <summary> /// Returns true if the last event of child workflow is <see cref="ChildWorkflowFailedEvent"/>. /// </summary> /// <param name="item"></param> /// <returns></returns> public static bool HasFailed(this IChildWorkflowItem item) => item.LastFailedEvent() != null;
/// <summary> /// Returns true if the last event of child workflow is <see cref="ChildWorkflowCompletedEvent"/>. /// </summary> /// <param name="item"></param> /// <returns></returns> public static bool HasCompleted(this IChildWorkflowItem item) => item.LastCompletedEvent() != null;
private string WorkflowInput(IChildWorkflowItem item)
{
var lastEvent = item.LastEvent() as ChildWorkflowEvent;
return(lastEvent != null ? lastEvent.Input : StartedEvent.Input);
}
/// <summary>
/// Send signal to child workflow.
/// </summary>
/// <param name="childWorkflow"></param>
/// <returns></returns>
public WorkflowAction ForChildWorkflow(IChildWorkflowItem childWorkflow)
{
Ensure.NotNull(childWorkflow, nameof(childWorkflow));
return(ForChildWorkflow(childWorkflow.Name, childWorkflow.Version, childWorkflow.PositionalName));
}
