//Metodo barbaro per calcolare i nodi coinvolti nel percorso anche in caso di biforcazioni
private List <string> BackTrace(IComputableWorkflow WF, string checkPointNode)
{
List <string> backNodes = new List <string>();
while (!WF.IsInitialState())//backtrace dal nodo corrente
{
backNodes.Add(WF.GetState().Name);
WF.ComputeNewStatus(WFeventType.ROLLBACK, null, null);
//nodePlaceHolder.ResetStates();
presenPanel2.Controls.Clear();
presenPanel2.Visible = false;
//renderNode(workflow.GetState());
//nodePlaceHolder.ResetStates();
//nodePlaceHolder.Controls.Clear();
presenPanel.Controls.Clear();
renderNode(workflow.GetState());
}
backNodes.Add(WF.GetState().Name);
WFnode curr = WF.GetState();
while (curr.Name != checkPointNode)//riporta il workflow allo stato corrente
{
WFnode actual = workflow.GetState();
XmlDocument doc = new XmlDocument();
doc.LoadXml(actual.GetValue(nodePlaceHolder.Controls[0], actual.GetRenderingDocument().DocumentElement.FirstChild));
ActionResult ar = workflow.ComputeNewStatus(WFeventType.TRYGOON, doc, ValidationEventHandler);
curr = WF.GetState();
//nodePlaceHolder.ResetStates();
//nodePlaceHolder.Controls.Clear();
presenPanel.Controls.Clear();
renderNode(workflow.GetState());
}
return(backNodes);
}
protected void forward_Click(object sender, EventArgs e)
{
bool final = workflow.IsFinalState();
WFnode actual = workflow.GetState();
XmlDocument doc = new XmlDocument();
doc.LoadXml(actual.GetValue(/*nodePlaceHolder.Controls[0]*/ presenPanel.Controls[0], actual.GetRenderingDocument().DocumentElement.FirstChild));
ActionResult ar = workflow.ComputeNewStatus(WFeventType.TRYGOON, doc, ValidationEventHandler);
if (ar.OK && !final)
{
//nodePlaceHolder.ResetStates();
//nodePlaceHolder.Controls.Clear();
presenPanel.Controls.Clear();
WFnode currentNode = workflow.GetState();
renderNode(currentNode);
/////////////////////////////////HISTORY//////////////////////////////////////////////////////////////////
UpdateHistory(currentNode, ar);
/////////////////////////////////HISTORY//////////////////////////////////////////////////////////////////
}
else if (ar.OK && final)
{
//nodePlaceHolder.ResetStates();
//nodePlaceHolder.Controls.Clear();
presenPanel.Controls.Clear();
//nodePlaceHolder.Controls.Add(new Panel());//To not handle generic error dialog
presenPanel.Controls.Add(new Panel());
presenPanel2.Visible = true;
forward.Visible = false;
save.Visible = true;
XmlDocument xd = workflow.GetCollectedDocument();
xd.Schemas = workflow.GetCollectedDocumentSchemas();
xd.Validate(null);//bug
XmlNodeList ln = xd.ChildNodes[1].ChildNodes;
IEnumerable <WFnode> nodeList = workflow.getNodeList();
foreach (XmlNode xnd in ln)
{
foreach (WFnode wfn in nodeList)
{
if (wfn.Name == XmlConvert.DecodeName(xnd.Name))
{
renderFinal(wfn, xnd);
}
}
}
presenPanel3.Controls.Clear();
}
else
{
/*It remains here...but someone should say him that there is no edge or his input doesn't validate*/
WFnode currentNode = workflow.GetState();
UpdateHistory(currentNode, ar);
}
}