public override object Run(WorkFlowContext context, SearchMode mode, WorkFlow.Visitors.IVisitor visitor = null)
{
if (visitor == null)
visitor = new DefaultVisitor();
Queue<string> fila = new Queue<string>();
List<string> mark = new List<string>();
fila.Enqueue(context.SourceState);
mark.Add(context.SourceState);
while (fila.Count != 0)
{
string statusfila = fila.Dequeue();
context.SourceState = statusfila;
foreach (var item in this.GetActivities(context).OrderBy(x => x.Operation))
{
context.Operation = item.Operation;
string newstatus = this.GetNextStatus(context);
visitor.Visit(statusfila, new Activity { Operation = item.Operation, Description = item.Description }, newstatus);
if (!mark.Contains(newstatus))
{
fila.Enqueue(newstatus);
mark.Add(newstatus);
}
}
}
return visitor.EndVisit();
}
private void RunInWidth(WorkFlowContext context, IVisitor visitor)
{
Queue<string> fila = new Queue<string>();
List<string> mark = new List<string>();
fila.Enqueue(context.SourceState);
mark.Add(context.SourceState);
while (fila.Count != 0)
{
string statusfila = fila.Dequeue();
context.SourceState = statusfila;
foreach (var item in this.GetActivities(context).OrderBy(x => x.Operation))
{
context.Operation = item.Operation;
string newstatus = this.GetNextStatus(context);
visitor.Visit(statusfila, new Activity { Operation = item.Operation, Description = item.Description }, newstatus);
if (!mark.Contains(newstatus))
{
fila.Enqueue(newstatus);
mark.Add(newstatus);
}
}
}
}
private void RunInDepth(WorkFlowContext context, IVisitor visitor)
{
if (string.IsNullOrEmpty(context.SourceState))
{
return;
}
else
{
foreach (var item in this.GetActivities(context).OrderBy(x => x.Operation))
{
context.Operation = item.Operation;
string newstatus = this.GetNextStatus(context);
string laststate = context.SourceState;
string transition = string.Format("{0},{1},{2}", context.SourceState, item.Description, newstatus);
if (NotPresent(transition))
{
visitor.Visit(context.SourceState, new Activity { Operation = item.Operation, Description = item.Description }, newstatus);
context.SourceState = newstatus;
RunInDepth(context, visitor);
context.SourceState = laststate;
}
}
}
}
public virtual IList<Activity> GetActivities(WorkFlowContext context, IControlAccess access = null)
{
var atividades = from w in GetNode().WorkFlow
from i in w.Transitions
where w.Area.Equals(context.Area)
&& (w.SourceState.Equals(context.SourceState) || context.Match.CheckExcludeAtivity(context.SourceState, w, i))
&& context.Match.CheckConditions(i.Condition, context)
select new Activity { Operation = i.Operation, Description = i.Description };
return (access != null) ? access.checkAccessActivity(atividades.ToList()) : atividades.ToList();
}
public virtual bool CheckParameters(WorkFlowContext context, Condition cond)
{
var conditions = cond.Parameters.ToDictionary(x => x.Key, y => y.Value);
//first verifying if parameters keys supply all conditions keys
bool keysmatch = (context.Count >= conditions.Keys.Count) &&
(context.Keys.Intersect(conditions.Keys).Count() == conditions.Keys.Count);
//verifying if parameter values are in condition values
int numbervaluesmatches = context.Keys
.Where(k => conditions.ContainsKey(k) && conditions[k].Intersect(context[k]).Count() == context[k].Count)
.Count();
return keysmatch && (numbervaluesmatches == conditions.Count);
}
public virtual string GetNextStatus(WorkFlowContext context)
{
var retorno = (from w in GetNode().WorkFlow
from i in w.Transitions
where w.Area.Equals(context.Area)
&& context.Match.IsOriginStateNotNeeded(w, context.SourceState)
&& i.Operation.Equals(context.Operation)
&& context.Match.CheckConditions(i.Condition, context)
select i.DestinyState).ToList();
if (retorno.Count == 0) throw new StatusNotFoundException("There is no destiny for this source.");
if (retorno.Count > 1) throw new StatusNotFoundException("There are 2 or more destinies.");
return retorno[0].ToString();
}
public override bool CheckConditions(string condition, WorkFlowContext context)
{
if (condition == null) return true;
if (condition.StartsWith("!"))
{
Condition cond = GetNode().Conditions.Where(x => x.Name.Equals(condition.Substring(1))).FirstOrDefault();
return !CheckParameters(context, cond);
}
else
{
Condition cond = GetNode().Conditions.Where(x => x.Name.Equals(condition)).FirstOrDefault();
return CheckParameters(context, cond);
}
}
public override object Run(WorkFlowContext context, SearchMode mode, IVisitor visitor = null)
{
if (visitor == null)
visitor = new DefaultVisitor();
if (mode == SearchMode.Depth)
{
RunInDepth(context, visitor);
}
else if (mode == SearchMode.Breadth)
{
RunInWidth(context, visitor);
}
return visitor.EndVisit();
}
public abstract object Run(WorkFlowContext context, SearchMode mode, IVisitor visitor = null);
static void Main(string[] args)
{
//put this line in a global.asax for web
WorkFlowConfiguration.Binder.SetRepository(typeof(DAOEmbeddedResource))
.Setup(x => x.TypeName, "WorkFlow.Json.workflow.json , LightWorkFlow");
IWorkFlow work = WorkFlowManager.GetManager();//getting instance of workflow.
/*
{
"Id": 36,
"SourceState": "ATDRAFT",
"StateOrder": "Initial",
"Transitions": [{ Operation:"AskAprovePURCHASEASK", Description:"Ask Aproving" , "DestinyState": "WAITINGALLOW"},
{ Operation:"CancelDraft", Description:"Erase Draft" , "DestinyState": "None"}],
"Area": "AreaPURCHASEASK"
},
*/
//1) Getting Initial State
string initialstate = work.GetInitialStatus("AreaPURCHASEASK");//ATDRAFT
//======================================================================================================
//2) listing operations that can be done from a specific state.
WorkFlowContext workoperation = work.GetContext()
.SetArea("AreaPURCHASEASK")
.SetSourceState("ATDRAFT");
IList<Activity> operations = work.GetActivities(workoperation);//AskAprovePURCHASEASK, CancelDraft
string description = work.GetActivityDescription("AskAprovePURCHASEASK");//Ask Aproving
//=======================================================================================================
//3) Get Next Status
WorkFlowContext workgetnextstatus = work.GetContext()
.SetArea("AreaPURCHASEASK")
.SetSourceState("ATDRAFT")
.SetOperation("AskAprovePURCHASEASK");
string nextstatus = work.GetNextStatus(workgetnextstatus);//WAITINGALLOW
//========================================================================================================
//4)Runner - walk throughout workflow in depth and breadth
//setting area and initial state from which runner will start to look at.
WorkFlowContext workc = work.GetContext()
.SetArea("AreaPURCHASEASK")
.SetSourceState("ATDRAFT");
var depth = work.Run(workc, SearchMode.Depth);//all transitions printed in a depth search mode.
work.GetContext()
.SetArea("AreaPURCHASEASK")
.SetSourceState("ATDRAFT");
var breadth = (IList<string>)work.Run(workc, SearchMode.Breadth);//all transitions printed in a breadth search mode.
//4.1 configuring visitor
WorkFlowContext workvisitor = work.GetContext()
.SetArea("AreaPURCHASEASK")
.SetSourceState("ATDRAFT");
var workvisitordepth = work.Run(workc, SearchMode.Depth, new CustomVisitor());//ok
//========================================================================================================
//5) setting conditions
/*
* {
"Name": "EXTINTION",
"Parameters": [
{
"Key": "Objective",
"Value": [
"4",
"3",
"7",
"5",
"9",
"8"
]
}
]
},
{
"Id": 10,
"SourceState": "WAITMOVEMENTDESTINY",
"Transitions": [{ Condition:"!EXTINTION", Operation:"PURCHASEORDER_CONFIRM_ARRIVE_DESTINY", Description:"Confirm chegada" , "DestinyState": "WAITRETURN"},
{ Condition: "EXTINTION", Operation:"PROTOCOLR_REQUIREMENT", Description:"Protocolar Requerimento" , "DestinyState": "PROTOCOLREQUIREMENT"}],
"Area": "AreaPURCHASEORDER"
},
*/
WorkFlowContext workoperationcond = work.GetContext()
.SetArea("AreaPURCHASEORDER")
.SetSourceState("WAITMOVEMENTDESTINY");
workoperationcond["Objective"] = new List<string> { "4" };
IList<Activity> operationsExtintion = work.GetActivities(workoperationcond);
//PROTOCOLR_REQUIREMENT,PURCHASEORDER_CANCEL
workoperationcond["Objective"] = new List<string> { "1" };
IList<Activity> operationsNoExtintion = work.GetActivities(workoperationcond);
//PURCHASEORDER_CONFIRM_ARRIVE_DESTINY,PURCHASEORDER_CANCEL
//PURCHASEORDER_CANCEL shows up here because SourceState is configured with "All" in the area "AreaPURCHASEORDER".
//if you dont want this operation shows up in a set of states, use "But" inside operation.
//6) Setting a new condition match class
WorkFlowContext context = new WorkFlowContext {
Area = "AreaPURCHASEORDER",
Operation = "PURCHASEORDER_CONFIRM_ARRIVE_DESTINY",
SourceState = "WAITMOVEMENTDESTINY"
}.SetCondition(typeof(NewMatch));
context["Objective"] = new List<string> { "2" };
string state = work.GetNextStatus(context);
}
public abstract bool CheckConditions(string p, WorkFlowContext context);
