/// <summary>
/// Called by the workflow runtime to execute an activity.
/// </summary>
/// <param name="context">The <see cref="ActionActivityContext"/> to associate with this activity and execution.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/> used to propagate notifications that the operation should be canceled.</param>
/// <returns>
/// The <see cref="ActionActivityResult"/> of the run task, which determines whether the activity remains in the executing state, or transitions to the closed state.
/// </returns>
public async Task <ActionActivityResult> ExecuteAsync(ActionActivityContext context, CancellationToken cancellationToken)
{
if (context.Contact != null)
{
var contact = await FindContactAsync(context, cancellationToken);
if (contact != null)
{
PatchContact(contact, context.Contact);
context.Contact = contact;
}
}
var result = await ExecuteNodeAsync(context, cancellationToken);
if (result == null)
{
throw new InvalidOperationException("Action result is required.");
}
// Preserve backward-compatibility and log each event received from old actions
// without having an effect on the action result
if (!result.HasLogAction)
{
await ExecuteNodeAsync(context.Clone(new ActionItem
{
Type = ActionType.Log,
Enabled = true,
Options = JObject.FromObject(new { Anonymous = true })
}),
cancellationToken);
}
return(result);
}
/// <summary>
/// Invokes an activity.
/// </summary>
/// <param name="context">The <see cref="ActionActivityContext" /> to associate with this activity and execution.</param>
/// <param name="actions">The actions.</param>
/// <returns>
/// The <see cref="ActionActivityResult" /> of the run task, which determines whether the activity remains in the executing state, or transitions to the closed state.
/// </returns>
private async Task <ActionActivityResult> ExecuteNodeListAsync(ActionActivityContext context, IEnumerable <ActionItem> actions, CancellationToken cancellationToken)
{
Debug.Assert(context != null);
Debug.Assert(actions != null);
ActionActivityResult status = null;
foreach (var action in actions)
{
context = context.Clone(action);
status = await ExecuteNodeAsync(context, cancellationToken);
if (status.StatusCode == ActionActivityStatusCode.Success && status.ReturnUrl != null ||
status.StatusCode == ActionActivityStatusCode.Forbidden)
{
return(status);
}
}
return(status ?? context.CreateResult(ActionActivityStatusCode.Failed));
}
