public override bool Compensate(WorkLog item, RoutingSlip routingSlip)
{
object reservationId = item.Result["reservationId"];
Logger.Message($"Cancelled flight {reservationId}.");
return(true);
}
public override Boolean AcceptMessage(Uri?uri, RoutingSlip routingSlip)
{
var activity = new T();
if (activity.CompensationQueueAddress.Equals(uri))
{
ProcessBackwardMessage(routingSlip);
return(true);
}
if (activity.WorkItemQueueAddress.Equals(uri))
{
ProcessForwardMessage(routingSlip);
return(true);
}
return(false);
}
public void ProcessBackwardMessage(RoutingSlip routingSlip)
{
if (routingSlip.IsInProgress)
{
// UndoLast can put new work on the routing slip
// and return false to go back on the forward
// path.
if (routingSlip.UndoLast())
{
// recursion stands for passing context via message
// the routing slip can be fully serialized and passed
// between systems .
_send(routingSlip.CompensationUri, routingSlip);
}
else
{
_send(routingSlip.ProgressUri, routingSlip);
}
}
}
public void ProcessForwardMessage(RoutingSlip routingSlip)
{
if (!routingSlip.IsCompleted)
{
// if the current step is successful, proceed
// otherwise go to the Unwind path
if (routingSlip.ProcessNext())
{
// recursion stands for passing context via message
// the routing slip can be fully serialized and passed
// between systems.
_send(routingSlip.ProgressUri, routingSlip);
}
else
{
// pass message to unwind message route
_send(routingSlip.CompensationUri, routingSlip);
}
}
}
public abstract bool AcceptMessage(Uri?uri, RoutingSlip routingSlip);
public abstract bool Compensate(WorkLog item, RoutingSlip routingSlip);