private async Task <bool> HasAdjustmentAmountAsync(State state)
{
if (((Adjustment)state).AdjustmentAmount.HasValue)
{
var adjustmentDecision = state.Antecedent as AdjustmentDecision;
var collateData = adjustmentDecision.Antecedent as CollateData;
if ((((Adjustment)state).AdjustmentAmount.Value
+ collateData.RedressAmount.Value) > 100)
{
if (Transition == null)
{
Transition = Transitions.FirstOrDefault();
}
await TaskRunner.DoAsyncStuff();
return(true);
}
var error = "The sum of the redress amount and the adjustment amount must be greater than 100.";
state.Log.Add(new LogEntry(error));
throw new StateException(state, error);
}
else
{
var error = String.Format("{0} requires an adjustment amount before it can be completed.", state.Name);
state.WriteLogEntry(error);
throw new StateException(state, error);
}
}
private VisualTransition FindTransition(string oldStateName, string newStateName)
{
if (oldStateName.IsNullOrEmpty() || newStateName.IsNullOrEmpty())
{
return(null);
}
var perfectMatch = Transitions.FirstOrDefault(vt =>
string.Equals(vt.From, oldStateName) &&
string.Equals(vt.To, newStateName));
if (perfectMatch != null)
{
return(perfectMatch);
}
var fromMatch = Transitions.FirstOrDefault(vt =>
string.Equals(vt.From, oldStateName) &&
vt.To == null);
if (fromMatch != null)
{
return(fromMatch);
}
var toMatch = Transitions.FirstOrDefault(vt =>
vt.From == null &&
string.Equals(vt.To, newStateName));
return(toMatch);
}
/// <summary>
/// Handle an event.
/// </summary>
/// <param name="e">Event to handle.</param>
/// <returns>Returns the new state of the machine.</returns>
public IState <D> ReceiveEvent(IMachineEvent e)
{
var transition = Transitions.FirstOrDefault(t => t.Event.Equals(e) && (t.Guard?.Invoke(Data, e) ?? true));
if (transition == null)
{
return(null);
}
transition.Data = Data;
transition.Action?.Invoke(Data, e);
return(transition.To);
}
public StateInfo TransitionTo(object state, object trigger)
{
if (Transitions.FirstOrDefault(x => x.State == (int)state && x.Trigger == (int)trigger) == null)
{
Transitions.Add(new Transition()
{
State = (int)state,
Trigger = (int)trigger
});
}
return(this);
}
protected bool CanTriggerFirstAble(out PetrinetTransition first)
{
var ret = false;
first = null;
if (GlobalTriggerAreaForAllTransitions == null)
{
}
else if (GlobalTriggerAreaForAllTransitions.bounds.Contains(Controller.transform.position))
{
ret = true;
}
else
{
var forward = Controller.transform.forward;
switch (TransitionTrigger)
{
case Trigger.Point:
RaycastHit info;
if (GlobalTriggerAreaForAllTransitions.Raycast(new Ray(Controller.transform.position, forward), out info, 10f))
{
ret = true;
}
break;
case Trigger.Proximity:
var distance = GlobalTriggerAreaForAllTransitions.bounds.Contains(Controller.transform.position) ?
0f :
Vector3.Distance(Controller.transform.position, GlobalTriggerAreaForAllTransitions.ClosestPointOnBounds(Controller.transform.position));
if (distance < TriggerDistance)
{
ret = true;
}
break;
}
}
if (!ret)
{
return(false);
}
first = Transitions.FirstOrDefault(t => t.GetConditionsFulfilled().Values.Any(v => v));
if (first == null)
{
ret = false;
}
return(ret);
}
/// <summary>
/// 获取当前执行的跳转路线
/// </summary>
/// <param name="transitionID">跳转ID</param>
/// <returns>跳转对象</returns>
protected Transition GetExecuteTransition(string transitionID)
{
Transition executeTransition = Transitions
.FirstOrDefault(t => t.NID == transitionID);
ASTNode an = this.GetNode(executeTransition.Destination);
Transition returnTransition = executeTransition;
while (an.NodeType == Enums.WorkflowNodeCategory.Decision)
{
WorkflowDecision decision = WorkflowDecision.ConvertToReallyType(an);
returnTransition = decision.GetTransition();
an = this.GetNode(returnTransition.Destination);
}
return(returnTransition);
}
private async Task <bool> HasRedressRateAsync(State state)
{
if (((CollateData)state).RedressAmount.HasValue)
{
if (Transition == null)
{
Transition = Transitions.FirstOrDefault();
}
await TaskRunner.DoAsyncStuff();
return(true);
}
var error = String.Format("{0} requires a redress amount before it can be completed.", state.Name);
state.WriteLogEntry(error);
throw new StateException(state, error);
}
internal async Task CalculateFinalRedressAmountAsync(State context)
{
var states = context.Flatten();
var collateData = states.OfType <CollateData>().FirstOrDefault(s => s.Name.Equals("Collate Data"));
var responseReceived = states.OfType <ResponseReceived>().FirstOrDefault(s => s.Name.Equals("Response Received"));
var adjustment = states.OfType <Adjustment>().FirstOrDefault(s => s.Name.Equals("Adjustment"));
decimal?finalRedressAmount = 0;
if (collateData != null &&
collateData.RedressAmount.HasValue)
{
finalRedressAmount = collateData.RedressAmount;
}
if (adjustment != null &&
adjustment.AdjustmentAmount.HasValue)
{
finalRedressAmount += adjustment.AdjustmentAmount;
}
if (responseReceived != null &&
responseReceived.ConsequentialLossClaim.HasValue)
{
finalRedressAmount += responseReceived.ConsequentialLossClaim;
}
FinalRedressAmount = finalRedressAmount;
if (Transition == null)
{
Transition = Transitions.FirstOrDefault(s => s.Name.Equals("Payment"));
}
await TaskRunner.DoAsyncStuff();
}
public int ProcessLine(string line)
{
currentState = StartState;
var tempState = currentState;
currentInput = line;
int i;
var tempI = 0;
var currentWord = "";
var tempCurrentWord = "";
for (i = 0; i < currentInput.Length; i++)
{
var currentChar = currentInput[i];
if (char.IsWhiteSpace(currentChar))
{
continue;
}
if (AcceptStates.Contains(currentState))
{
tempState = currentState;
tempI = i;
tempCurrentWord = currentWord;
}
var transition = Transitions.FirstOrDefault(t => t.FromState == currentState && t.Symbol == currentChar);
if (transition == null)
{
if (AcceptStates.Contains(currentState))
{
currentState = StartState;
i--;
tempState = null;
Console.WriteLine(currentWord + " " + LanguageWords.FirstOrDefault(kvp => kvp.Value == currentWord).Key);
currentWord = "";
continue;
}
if (tempState == null || tempState == StartState)
{
return(i);
}
currentState = tempState;
currentWord = tempCurrentWord;
i = tempI - 1;
i--;
tempState = null;
continue;
}
currentState = transition.ToState;
currentWord += currentChar;
}
if (!AcceptStates.Contains(currentState))
{
return(i);
}
Console.WriteLine(currentWord + " " + LanguageWords.FirstOrDefault(kvp => kvp.Value == currentWord).Key);
return(-1);
}
public State GetNextState(List <TuringTape> read)
{
var match = Transitions.FirstOrDefault(c => c.IsMatch(read));
return(match.Apply(read));
}
/// <summary>
/// Returns the first element that matches the name.
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
/// <author>Jannik Arndt</author>
public Transition FindTransition(String name)
{
return(Transitions.FirstOrDefault(x => x.Name == name));
}
public void Minimize()
{
var distinct = new TriangularTable <int, State>(States.Count, f => f.StateNumber);
distinct.Fill(-1); // Fill with empty states
// Create a function for the distinct state pairs and performing an action on them
Action <Action <State, State> > distinctStatePairs = action =>
{
for (int i = 0; i < States.Count; ++i)
{
var p = States[i];
for (int j = i + 1; j < States.Count; ++j)
{
var q = States[j];
action(p, q);
}
}
};
// Get a set of all valid input ranges that we have in the DFA
ISet <CharRange> allValidInputs = new HashSet <CharRange>();
foreach (var transition in Transitions)
{
allValidInputs.UnionWith(transition.ValidInput.Ranges);
}
// For every distinct pair of states, if one of them is an accepting state
// and the other one is not set the distinct
distinctStatePairs((p, q) =>
{
var pIsAcceptState = p.AcceptState;
var bIsAcceptState = q.AcceptState;
if (bIsAcceptState && pIsAcceptState)
{
// If both are accepting states, then we might have an issue merging them.
// this is because we use multiple regular expressions with different endings when
// constructing lexers.
var pAcceptStates = p.NfaStates.Where(f => f.AcceptState).ToList();
var qAcceptStates = q.NfaStates.Where(f => f.AcceptState).ToList();
if (pAcceptStates.Count() == qAcceptStates.Count())
{
foreach (var pAcceptState in pAcceptStates)
{
if (!qAcceptStates.Contains(pAcceptState))
{
// Since the accepting states differ, its not cool to merge
// these two states.
distinct[p, q] = int.MaxValue;
}
}
}
else
{
// Not the same number of states, not cool to merge
distinct[p, q] = int.MaxValue;
}
}
if (pIsAcceptState ^ bIsAcceptState)
{
distinct[p, q] = int.MaxValue;
}
});
// Make a dictionary of from transitions. This is well worth the time, since
// this gets accessed lots of times.
var targetDict = new Dictionary <State, Dictionary <CharRange, State> >();
foreach (var transition in Transitions)
{
Dictionary <CharRange, State> toDict;
targetDict.TryGetValue(transition.From, out toDict);
if (toDict == null)
{
toDict = new Dictionary <CharRange, State>();
targetDict.Add(transition.From, toDict);
}
foreach (var range in transition.ValidInput.Ranges)
{
toDict.Add(range, transition.To);
}
}
// Start iterating
bool changes;
do
{
changes = false;
distinctStatePairs((p, q) =>
{
if (distinct[p, q] == -1)
{
Func <State, CharRange, State> targetState = (state, c) =>
{
Dictionary <CharRange, State> charDict;
if (targetDict.TryGetValue(state, out charDict))
{
State toState;
if (charDict.TryGetValue(c, out toState))
{
return(toState);
}
}
return(null);
};
foreach (var a in allValidInputs)
{
var qa = targetState(q, a);
var pa = targetState(p, a);
if (pa == null ^ qa == null)
{
// If one of them has a transition on this character range but the other one doesn't then
// they are separate.
distinct[p, q] = a.GetHashCode();
changes = true;
break;
}
// If both are null, then we carry on.
// The other one is null implictly since we have XOR checked it earlier
if (qa == null)
{
continue;
}
if (distinct[qa, pa] != -1)
{
distinct[p, q] = a.GetHashCode();
changes = true;
break;
}
}
}
});
} while (changes);
// Merge states that still have blank square
// To make this work we have to bunch states together since the indices will be screwed up
var mergeSets = new List <ISet <State> >();
Func <State, ISet <State> > findMergeList = s => mergeSets.FirstOrDefault(m => m.Contains(s));
distinctStatePairs((p, q) =>
{
// No need to check those that we have already determined to be distinct
if (distinct[p, q] != -1)
{
return;
}
// These two states are supposed to merge!
// See if p or q is already part of a merge list!
var pMergeSet = findMergeList(p);
var qMergeSet = findMergeList(q);
if (pMergeSet == null && qMergeSet == null)
{
// No previous set for either
// Add a new merge set
mergeSets.Add(new HashSet <State> {
p, q
});
}
else if (pMergeSet != null && qMergeSet == null)
{
// Add q to pMergeSet
pMergeSet.Add(q);
}
else if (pMergeSet == null)
{
// Add p to qMergeSet
qMergeSet.Add(p);
}
else
{
// Both previously have merge sets
// If its not the same set (which it shoudln't be) then add their union
if (pMergeSet != qMergeSet)
{
// Union everything into the pMergeSet
pMergeSet.UnionWith(qMergeSet);
// Remove the qMergeSet
mergeSets.Remove(qMergeSet);
}
}
});
// Armed with the merge sets, we can now do the actual merge
foreach (var mergeSet in mergeSets)
{
// The lone state that should remain is the FIRST set in the mergeset
var stateList = mergeSet.ToList();
var outputState = stateList[0];
// If this statelist contains the startstate, the new startstate will have to be
// the new output state
if (stateList.Contains(StartState))
{
StartState = outputState;
}
// Iterate over all the states in the merge list except for the one we have decided
// to merge everything into.
for (int i = 1; i < stateList.Count; ++i)
{
var toRemove = stateList[i];
// Find all transitions that went to this state
var toTransitions = Transitions.Where(f => f.To == toRemove).ToList();
foreach (var transition in toTransitions)
{
// There can be two cases here, either there already is a new transition to be found, in
// which case we can merge the valid input instead. The alternative is that there is no prior
// transition, in which case we repoint our transition to the output state.
var existingTransition = Transitions.FirstOrDefault(f => f.From == transition.From && f.To == outputState);
if (existingTransition != null)
{
existingTransition.ValidInput.UnionWith(transition.ValidInput);
Transitions.Remove(transition); // Remove the old transition
}
else
{
transition.To = outputState;
}
}
// Find all transitions that went from this state
var fromTransitions = Transitions.Where(f => f.From == toRemove).ToList();
foreach (var transition in fromTransitions)
{
// Same two cases as the code above
var existingTransition = Transitions.FirstOrDefault(f => f.From == outputState && f.To == transition.To);
if (existingTransition != null)
{
existingTransition.ValidInput.UnionWith(transition.ValidInput);
Transitions.Remove(transition); // Remove the old transition
}
else
{
transition.From = outputState;
}
}
// Since before removing this state, we need to merge the list of NFA states that created both of these states
foreach (var nfaState in toRemove.NfaStates)
{
if (!outputState.NfaStates.Contains(nfaState))
{
outputState.NfaStates.Add(nfaState);
}
}
// There should be no more references to this state. It can thus be removed.
States.Remove(toRemove);
}
}
// The states now need to be renumbered
AssignStateNumbers();
}