private string TryAddExecutionPointer(string pathId, BaseFlowNode flowNode, ICollection <MessageToken> outcomeValues = null)
{
ICollection <MessageToken> incoming = new List <MessageToken>();
if (outcomeValues != null)
{
incoming = outcomeValues;
}
var instanceId = string.Empty;
if (!TryAddInstance(flowNode, pathId, out instanceId))
{
var pointer = GetActiveExecutionPointer(pathId, instanceId);
if (pointer != null)
{
var e = new IncomingTokenAddedEvent(Guid.NewGuid().ToString(), AggregateId, Version + 1, pointer.ExecutionPathId, pointer.Id, JsonConvert.SerializeObject(incoming), DateTime.UtcNow);
Handle(e);
DomainEvents.Add(e);
return(pointer.Id);
}
}
var id = Guid.NewGuid().ToString();
var evt = new ExecutionPointerAddedEvent(Guid.NewGuid().ToString(), AggregateId, Version + 1, id, pathId, instanceId, flowNode.EltId, JsonConvert.SerializeObject(incoming), DateTime.UtcNow);
Handle(evt);
DomainEvents.Add(evt);
return(id);
}
private void Handle(IncomingTokenAddedEvent evt)
{
var pointer = GetExecutionPointer(evt.ExecutionPathId, evt.ExecutionPointerId);
var tokens = MessageToken.DeserializeLst(evt.SerializedToken);
pointer.AddIncoming(tokens);
Version = evt.Version;
UpdateDateTime = evt.CreateDateTime;
}
private void ConsumeMessage(ExecutionPath executionPath, MessageToken messageToken)
{
foreach (var pointer in executionPath.ActivePointers)
{
var nodeDef = GetDefinition(pointer.FlowNodeId) as BaseCatchEvent;
if (nodeDef == null)
{
continue;
}
if (nodeDef.EventDefinitions.Any(_ => _.IsSatisfied(this, messageToken)))
{
var tokens = new List <MessageToken> {
messageToken
};
var evt = new IncomingTokenAddedEvent(Guid.NewGuid().ToString(), AggregateId, Version + 1, executionPath.Id, pointer.Id, JsonConvert.SerializeObject(tokens), DateTime.UtcNow);
Handle(evt);
DomainEvents.Add(evt);
}
}
}
