public override FactValue SelfEvaluate(Dictionary <string, FactValue> workingMemory, Jint.Engine nashorn)
{
int numberOfTrueChildren = NumberOfTrueChildren(workingMemory);
int sizeOfGivenList = this.givenListSize;
FactBooleanValue fbv = null;
switch (this.numberOfTarget)
{
case "ALL":
if (numberOfTrueChildren == sizeOfGivenList)
{
fbv = FactValue.Parse(true);
}
else
{
fbv = FactValue.Parse(false);
}
break;
case "NONE":
if (numberOfTrueChildren == 0)
{
fbv = FactValue.Parse(true);
}
else
{
fbv = FactValue.Parse(false);
}
break;
case "SOME":
if (numberOfTrueChildren > 0)
{
fbv = FactValue.Parse(true);
}
else
{
fbv = FactValue.Parse(false);
}
break;
default:
if (numberOfTrueChildren == Int32.Parse(this.numberOfTarget))
{
fbv = FactValue.Parse(true);
}
else
{
fbv = FactValue.Parse(false);
}
break;
}
return(fbv);
}
public void HandleListItem(string parentText, string itemText, MetaType?metaType)
{
Tokens tokens = Tokenizer.GetTokens(itemText);
FactValue fv;
if (tokens.tokensString.Equals("Da"))
{
DateTime factValueInDate;
DateTime.TryParseExact(itemText, "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out factValueInDate);
fv = FactValue.Parse(factValueInDate);
}
else if (tokens.tokensString.Equals("De"))
{
fv = FactValue.Parse(Double.Parse(itemText));
}
else if (tokens.tokensString.Equals("No"))
{
fv = FactValue.Parse(Int32.Parse(itemText));
}
else if (tokens.tokensString.Equals("Ha"))
{
fv = FactValue.ParseHash(itemText);
}
else if (tokens.tokensString.Equals("Url"))
{
fv = FactValue.ParseURL(itemText);
}
else if (tokens.tokensString.Equals("Id"))
{
fv = FactValue.ParseUUID(itemText);
}
else if (Regex.Match(itemText, "FfAaLlSsEe").Success || Regex.Match(itemText, "TtRrUuEe").Success)
{
fv = FactValue.Parse(Boolean.Parse(itemText));
}
else
{
fv = FactValue.Parse(itemText);
}
string stringToGetFactValue = (parentText.Substring(5, parentText.IndexOf("AS", StringComparison.CurrentCulture) - 5)).Trim(); //the int value of 5 refers to the length of keyword, 'INPUT', +1
if (metaType.Equals(MetaType.INPUT))
{
((FactListValue)this.nodeSet.GetInputMap()[stringToGetFactValue]).AddFactValueToListValue(fv);
}
else if (metaType.Equals(MetaType.FIXED))
{
((FactListValue)this.nodeSet.GetFactMap()[stringToGetFactValue]).AddFactValueToListValue(fv);
}
}
/*
* this method is to set a rule as a fact in the workingMemory
* before this method is called, nodeName should be given and look up nodeMap in NodeSet to find variableName of the node
* then the variableName of the node should be passed to this method.
*/
public void SetFact(string nodeVariableName, FactValue value)
{
if (workingMemory.ContainsKey(nodeVariableName))
{
FactValue tempFv = workingMemory[nodeVariableName];
if (tempFv.GetFactValueType().Equals(FactValueType.LIST))
{
((FactListValue)tempFv).AddFactValueToListValue(tempFv);
}
else
{
FactListValue flv = FactValue.Parse(new List <FactValue>());
flv.AddFactValueToListValue(tempFv);
}
}
else
{
workingMemory.Add(nodeVariableName, value);
}
}
public override FactValue SelfEvaluate(Dictionary <string, FactValue> workingMemory, Jint.Engine nashorn)
{
FactValue fv = null;
/*
* Negation and Known type are a part of dependency
* hence, only checking its variableName value against the workingMemory is necessary.
* type is as follows;
* 1. the rule is a plain statement
* 2. the rule is a statement of 'A IS B'
* 3. the rule is a statement of 'A IS IN LIST: B'
* 4. the rule is a statement of 'needs(wants) A'. this is from a child node of ExprConclusionLine type
*/
if (!this.isPlainStatementFormat)
{
if (tokens.tokensList.Any(s => s.Equals("IS")))
{
fv = this.value;
}
else if (tokens.tokensList.Any((s) => s.Equals("IS IN LIST:")))
{
bool lineValue = false;
string listName = FactValue.GetValueInString(this.GetFactValue().GetFactValueType(), this.GetFactValue());
if (workingMemory[listName] != null)
{
FactValue variableValueFromWorkingMemory = workingMemory[this.variableName];
lineValue = variableValueFromWorkingMemory != null ?
((FactListValue)workingMemory[listName]).GetValue().Any((item) => (item as FactStringValue).GetValue().Equals(FactValue.GetValueInString(variableValueFromWorkingMemory.GetFactValueType(), variableValueFromWorkingMemory)))
:
((FactListValue)workingMemory[listName]).GetValue().Any((item) => (item as FactStringValue).GetValue().Equals(this.variableName));
}
fv = FactValue.Parse(lineValue);
}
}
return(fv);
}
public NodeSet CreateIterateNodeSet(NodeSet parentNodeSet)
{
DependencyMatrix parentDM = parentNodeSet.GetDependencyMatrix();
Dictionary <string, Node> parentNodeMap = parentNodeSet.GetNodeMap();
Dictionary <int?, string> parentNodeIdMap = parentNodeSet.GetNodeIdMap();
Dictionary <string, Node> thisNodeMap = new Dictionary <string, Node>();
Dictionary <int?, string> thisNodeIdMap = new Dictionary <int?, string>();
List <Dependency> tempDependencyList = new List <Dependency>();
NodeSet newNodeSet = new NodeSet();
thisNodeMap.Add(this.nodeName, this);
thisNodeIdMap.Add(this.nodeId, this.nodeName);
Enumerable.Range(1, this.givenListSize).ToList().ForEach((nth) =>
{
parentDM.GetToChildDependencyList(this.nodeId).ForEach((item) =>
{
if (this.GetNodeId() + 1 != item) // not first question id
{
Node tempChildNode = parentNodeMap[parentNodeIdMap[item]];
LineType lineType = tempChildNode.GetLineType();
Node tempNode = null;
string nextNThInString = Oridinal(nth);
if (lineType.Equals(LineType.VALUE_CONCLUSION))
{
tempNode = new ValueConclusionLine(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), tempChildNode.GetTokens());
}
else if (lineType.Equals(LineType.COMPARISON))
{
tempNode = new ComparisonLine(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), tempChildNode.GetTokens());
FactValue tempNodeFv = ((ComparisonLine)tempNode).GetRHS();
if (tempNodeFv.GetFactValueType().Equals(FactValueType.STRING))
{
FactValue tempFv = FactValue.Parse(nextNThInString + " " + this.GetVariableName() + " " + FactValue.GetValueInString(FactValueType.STRING, tempNodeFv));
tempNode.SetValue(tempFv);
}
}
else if (lineType.Equals(LineType.EXPR_CONCLUSION))
{
tempNode = new ExprConclusionLine(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), tempChildNode.GetTokens());
}
thisNodeMap.Add(tempNode.GetNodeName(), tempNode);
thisNodeIdMap.Add(tempNode.GetNodeId(), tempNode.GetNodeName());
tempDependencyList.Add(new Dependency(this, tempNode, parentDM.GetDependencyType(this.nodeId, item)));
CreateIterateNodeSetAux(parentDM, parentNodeMap, parentNodeIdMap, thisNodeMap, thisNodeIdMap, tempDependencyList, item, tempNode.GetNodeId(), nextNThInString);
}
else // first question id
{
Node firstIterateQuestionNode = parentNodeSet.GetNodeByNodeId(parentNodeSet.GetDependencyMatrix().GetToChildDependencyList(this.GetNodeId()).Min());
if (!thisNodeMap.ContainsKey(firstIterateQuestionNode.GetNodeName()))
{
thisNodeMap.Add(firstIterateQuestionNode.GetNodeName(), firstIterateQuestionNode);
thisNodeIdMap.Add(item, firstIterateQuestionNode.GetNodeName());
tempDependencyList.Add(new Dependency(this, firstIterateQuestionNode, parentDM.GetDependencyType(this.nodeId, item)));
}
}
});
});
int numberOfRules = Node.GetStaticNodeId();
int[,] dependencyMatrix = new int[numberOfRules, numberOfRules];
tempDependencyList.ForEach(dp => {
int parentId = dp.GetParentNode().GetNodeId();
int childId = dp.GetChildNode().GetNodeId();
int dpType = dp.GetDependencyType();
dependencyMatrix[parentId, childId] = dpType;
});
newNodeSet.SetNodeIdMap(thisNodeIdMap);
newNodeSet.SetNodeMap(thisNodeMap);
newNodeSet.SetDependencyMatrix(new DependencyMatrix(dependencyMatrix));
newNodeSet.SetFactMap(parentNodeSet.GetFactMap());
newNodeSet.SetNodeSortedList(TopoSort.DfsTopoSort(thisNodeMap, thisNodeIdMap, dependencyMatrix));
// newNodeSet.getNodeSortedList().stream().forEachOrdered(item->System.out.println(item.getNodeId()+"="+item.getNodeName()));
return(newNodeSet);
}
/*
* this method is used when a givenList exists as a string
*/
public void IterateFeedAnswers(string givenJsonString, NodeSet parentNodeSet, AssessmentState parentAst, Assessment ass) // this method uses JSON object via jackson library
{
/*
* givenJsonString has to be in same format as Example otherwise the engine would NOT be able to enable 'IterateLine' node
* --------------------------- "givenJsonString" Format ----------------------------
*
* string givenJsonString = "{
* \"iterateLineVariableName\":
* [
* {
* \"1st iterateLineVariableName\":
* {
* \"1st iterateLineVariableName ruleNme1\":\"..value..\",
* \"1st iterateLineVariableName ruleNme2\":\"..value..\"
* }
* },
* {
* \"2nd iterateLineVariableName\":
* {
* \"2nd iterateLineVariableName ruleName1\":\"..value..\",
* \"2nd iterateLineVariableName ruleName2\":\"..value..\"}
* }
* ]
* }";
*
* ----------------------------- "givenJsonString" Example ----------------------------
* string givenJsonString = "{
* \"service\":
* [
* {
* \"1st service\":
* {
* \"1st service period\":\"..value..\",
* \"1st service type\":\"..value..\"
* }
* },
* {
* \"2nd service\":
* {
* \"2nd service period\":\"..value..\",
* \"2nd service type\":\"..value..\"}
* }
* ]
* }";
*/
JObject jObject = JObject.Parse(givenJsonString);
List <JToken> serviceList = jObject.Property(this.variableName).ToList();
this.givenListSize = serviceList.Count;
if (this.iterateNodeSet == null)
{
this.iterateNodeSet = CreateIterateNodeSet(parentNodeSet);
this.iterateIE = new InferenceEngine(this.iterateNodeSet);
if (this.iterateIE.GetAssessment() == null)
{
this.iterateIE.SetAssessment(new Assessment(this.iterateNodeSet, this.GetNodeName()));
}
}
while (!this.iterateIE.GetAssessmentState().GetWorkingMemory().ContainsKey(this.nodeName))
{
Node nextQuestionNode = GetIterateNextQuestion(parentNodeSet, parentAst);
string answer = "";
Dictionary <string, FactValueType> questionFvtMap = this.iterateIE.FindTypeOfElementToBeAsked(nextQuestionNode);
foreach (string question in this.iterateIE.GetQuestionsFromNodeToBeAsked(nextQuestionNode))
{
// answer = jObject.GetValue(this.variableName)
// .SelectToken
// jsonObj.get(this.variableName)
// .get(nextQuestionNode.getVariableName().substring(0, nextQuestionNode.getVariableName().lastIndexOf(this.variableName) + this.variableName.length()))
// .get(nextQuestionNode.getVariableName())
// .asText().trim();
this.iterateIE.FeedAnswerToNode(nextQuestionNode, question, FactValue.Parse(answer), this.iterateIE.GetAssessment());
}
Dictionary <string, FactValue> iterateWorkingMemory = this.iterateIE.GetAssessmentState().GetWorkingMemory();
Dictionary <String, FactValue> parentWorkingMemory = parentAst.GetWorkingMemory();
TranseferFactValue(iterateWorkingMemory, parentWorkingMemory);
}
}
public void CreateIterateNodeSetAux(DependencyMatrix parentDM, Dictionary <string, Node> parentNodeMap, Dictionary <int?, string> parentNodeIdMap, Dictionary <string, Node> thisNodeMap, Dictionary <int?, string> thisNodeIdMap, List <Dependency> tempDependencyList, int originalParentId, int modifiedParentId, string nextNThInString)
{
List <int> childDependencyList = parentDM.GetToChildDependencyList(originalParentId);
if (childDependencyList.Count > 0)
{
childDependencyList.ForEach((item) => {
Node tempChildNode = parentNodeMap[parentNodeIdMap[item]];
LineType lt = tempChildNode.GetLineType();
Node tempNode;
thisNodeMap.TryGetValue(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), out tempNode);
if (tempNode == null)
{
if (lt.Equals(LineType.VALUE_CONCLUSION))
{
tempNode = new ValueConclusionLine(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), tempChildNode.GetTokens());
if (parentNodeMap[parentNodeIdMap[originalParentId]].GetLineType().Equals(LineType.EXPR_CONCLUSION))
{
ExprConclusionLine exprTempNode = thisNodeMap[thisNodeIdMap[modifiedParentId]] as ExprConclusionLine;
string replacedString = FactValue.GetValueInString(exprTempNode.GetEquation().GetFactValueType(), exprTempNode.GetEquation()).Replace(tempChildNode.GetNodeName(), nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName());
exprTempNode.SetValue(FactValue.Parse(replacedString));
exprTempNode.SetEquation(FactValue.Parse(replacedString));
}
}
else if (lt.Equals(LineType.COMPARISON))
{
tempNode = new ComparisonLine(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), tempChildNode.GetTokens());
FactValue tempNodeFv = ((ComparisonLine)tempNode).GetRHS();
if (tempNodeFv.GetFactValueType().Equals(FactValueType.STRING))
{
FactValue tempFv = FactValue.Parse(nextNThInString + " " + this.GetVariableName() + " " + tempNodeFv);
tempNode.SetValue(tempFv);
}
}
else if (lt.Equals(LineType.EXPR_CONCLUSION))
{
tempNode = new ExprConclusionLine(nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName(), tempChildNode.GetTokens());
}
}
else
{
if (lt.Equals(LineType.VALUE_CONCLUSION) && parentNodeMap[parentNodeIdMap[originalParentId]].GetLineType().Equals(LineType.EXPR_CONCLUSION))
{
ExprConclusionLine exprTempNode = ((ExprConclusionLine)thisNodeMap[thisNodeIdMap[modifiedParentId]]);
string replacedString = FactValue.GetValueInString(exprTempNode.GetEquation().GetFactValueType(), exprTempNode.GetEquation()).Replace(tempChildNode.GetNodeName(), nextNThInString + " " + this.GetVariableName() + " " + tempChildNode.GetNodeName());
exprTempNode.SetValue(FactValue.Parse(replacedString));
exprTempNode.SetEquation(FactValue.Parse(replacedString));
}
}
if (!thisNodeMap.ContainsKey(tempNode.GetNodeName()))
{
thisNodeMap.Add(tempNode.GetNodeName(), tempNode);
thisNodeIdMap.Add(tempNode.GetNodeId(), tempNode.GetNodeName());
tempDependencyList.Add(new Dependency(thisNodeMap[thisNodeIdMap[modifiedParentId]], tempNode, parentDM.GetDependencyType(originalParentId, item)));
CreateIterateNodeSetAux(parentDM, parentNodeMap, parentNodeIdMap, thisNodeMap, thisNodeIdMap, tempDependencyList, item, tempNode.GetNodeId(), nextNThInString);
}
});
}
}
public void SetValue(string valueInString, Tokens tokens)
{
int tokenStringListSize = tokens.tokensStringList.Count;
string lastTokenString = tokens.tokensStringList[tokenStringListSize - 1];
string[] tempArray = Regex.Split(valueInString, " ");
string tempStr = tempArray[0];
if (metaType.Equals(MetaType.FIXED))
{
if (tempStr.Equals("IS"))
{
if (this.IsDate(lastTokenString))
{
DateTime factValueInDate;
DateTime.TryParseExact(tempArray[1], "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out factValueInDate);
this.value = FactValue.Parse(factValueInDate);
}
else if (this.IsDouble(lastTokenString))
{
double tempDouble = Double.Parse(tempArray[1]);
this.value = FactValue.Parse(tempDouble);
}
else if (this.IsInteger(lastTokenString))
{
int tempInt = Int32.Parse(tempArray[1]);
this.value = FactValue.Parse(tempInt);
}
else if (this.IsBoolean(tempArray[1]))
{
this.value = tempArray[1].ToLower().Equals("false") ? FactValue.Parse(false) : FactValue.Parse(true);
}
else if (this.IsHash(lastTokenString))
{
this.value = FactValue.ParseHash(tempArray[1]);
}
else if (this.IsURL(lastTokenString))
{
this.value = FactValue.ParseURL(tempArray[1]);
}
else if (this.IsGUID(lastTokenString))
{
this.value = FactValue.ParseUUID(tempArray[1]);
}
}
else if (tempStr.Equals("AS"))
{
if (tempArray[1].Equals("LIST"))
{
this.value = FactValue.Parse(new List <FactValue>());
}
else
{
this.value = FactValue.Parse("WARNING");
}
}
}
else if (metaType.Equals(MetaType.INPUT))
{
if (tempArray.Length > 1)
{
/*
* within this case 'DefaultValue' will be set due to the statement format is as follows;
* 'A AS 'TEXT' IS B'
* and 'A' is variable, 'TEXT' is a type of variable, and 'B' is a default value.
* if the type is 'LIST' then variable is a list then the factValue has a default value.
*/
String tempStr2 = tempArray[2];
if (FactValueType.LIST.ToString().Equals(tempStr))
{
List <FactValue> valueList = new List <FactValue>();
FactValue tempValue;
if (this.IsDate(lastTokenString)) // tempStr2 is date value
{
DateTime factValueInDate;
DateTime.TryParseExact(tempStr2, "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out factValueInDate);
tempValue = FactValue.Parse(factValueInDate);
valueList.Add(tempValue);
}
else if (this.IsDouble(lastTokenString)) //tempStr2 is double value
{
double tempDouble = Double.Parse(tempStr2);
tempValue = FactValue.Parse(tempDouble);
valueList.Add(tempValue);
}
else if (this.IsInteger(lastTokenString)) //tempStr2 is integer value
{
int tempInt = Int32.Parse(tempStr2);
tempValue = FactValue.Parse(tempInt);
valueList.Add(tempValue);
}
else if (this.IsHash(lastTokenString)) //tempStr2 is integer value
{
tempValue = FactValue.ParseHash(tempStr2);
valueList.Add(tempValue);
}
else if (this.IsURL(lastTokenString)) //tempStr2 is integer value
{
tempValue = FactValue.ParseURL(tempStr2);
valueList.Add(tempValue);
}
else if (this.IsGUID(lastTokenString)) //tempStr2 is integer value
{
tempValue = FactValue.ParseUUID(tempStr2);
valueList.Add(tempValue);
}
else if (this.IsBoolean(tempStr2)) // tempStr2 is boolean value
{
if (tempStr2.ToLower().Equals("false"))
{
tempValue = FactValue.Parse(false);
}
else
{
tempValue = FactValue.Parse(true);
}
valueList.Add(tempValue);
}
else // tempStr2 is String value
{
tempValue = FactValue.Parse(tempStr2);
valueList.Add(tempValue);
}
this.value = FactValue.Parse(valueList);
((FactListValue)this.value).SetDefaultValue(tempValue);
}
else if (FactValueType.TEXT.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(tempStr2);
}
else if (FactValueType.DATE.ToString().Equals(tempStr))
{
DateTime factValueInDate;
DateTime.TryParseExact(tempStr2, "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out factValueInDate);
this.value = FactValue.Parse(factValueInDate);
}
else if (FactValueType.NUMBER.ToString().Equals(tempStr))
{
int factValueInInteger = Int32.Parse(tempStr2);
this.value = FactValue.Parse(factValueInInteger);
}
else if (FactValueType.DECIMAL.ToString().Equals(tempStr))
{
double factValueInDouble = Double.Parse(tempStr2);
this.value = FactValue.Parse(factValueInDouble);
}
else if (FactValueType.BOOLEAN.ToString().Equals(tempStr))
{
if (tempStr2.ToLower().Equals("true"))
{
this.value = FactValue.Parse(true);
}
else
{
this.value = FactValue.Parse(false);
}
}
else if (FactValueType.URL.ToString().Equals(tempStr))
{
this.value = FactValue.ParseURL(tempStr2);
}
else if (FactValueType.HASH.ToString().Equals(tempStr))
{
this.value = FactValue.ParseHash(tempStr2);
}
else if (FactValueType.UUID.ToString().Equals(tempStr))
{
this.value = FactValue.ParseUUID(tempStr2);
}
}
else
{
/*
* case of the statement does not have value, only contains a type of the variable
* so that the value will not have any default values
*/
if (FactValueType.LIST.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(new List <FactValue>());
}
else if (FactValueType.TEXT.ToString().Equals(tempStr) || FactValueType.URL.ToString().Equals(tempStr) || FactValueType.HASH.ToString().Equals(tempStr) || FactValueType.UUID.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(" ");
}
else if (FactValueType.DATE.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(DateTime.MinValue);
}
else if (FactValueType.NUMBER.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(-1111);
}
else if (FactValueType.DECIMAL.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(-0.1111);
}
else if (FactValueType.BOOLEAN.ToString().Equals(tempStr))
{
this.value = FactValue.Parse(Boolean.TrueString);
}
}
}
}
public override FactValue SelfEvaluate(Dictionary <string, FactValue> workingMemory, Jint.Engine jint)
{
/*
* Negation type can only be used for this line type
*
*/
FactValue workingMemoryLhsValue = workingMemory.ContainsKey(this.variableName) ? workingMemory[this.variableName] : null;
string rhsValueInString = FactValue.GetValueInString(this.GetRHS().GetFactValueType(), this.GetRHS());
FactValue workingMemoryRhsValue = this.GetRHS().GetFactValueType().Equals(FactValueType.STRING) ?
workingMemory[rhsValueInString]
:
this.GetRHS();
String script = "";
/*
* There will NOT be the case of that workingMemoryRhsValue is null because the node must be in following format;
* - A = 12231 (int or double)
* - A = Adam sandler (String)
* - A = 11/11/1977 (Date)
* - A = 123123dfae1421412aer(Hash)
* - A = 1241414-12421312-142421312(UUID)
* - A = true(Boolean)
* - A = www.aiBrain.com(URL)
* - A = B(another variable)
*/
/*
* if it is about date comparison then string of 'script' needs rewriting
*/
if ((workingMemoryLhsValue != null && workingMemoryLhsValue.GetFactValueType().Equals(FactValueType.DATE)) || (workingMemoryRhsValue != null && workingMemoryRhsValue.GetFactValueType().Equals(FactValueType.DATE)))
{
Boolean returnValue;
switch (this.operatorString)
{
case ">":
returnValue = (((FactDateValue)workingMemoryLhsValue).GetValue()).CompareTo((((FactDateValue)workingMemoryRhsValue).GetValue())) > 0 ? true : false;
return(FactValue.Parse(returnValue));
case ">=":
returnValue = (((FactDateValue)workingMemoryLhsValue).GetValue()).CompareTo((((FactDateValue)workingMemoryRhsValue).GetValue())) >= 0 ? true : false;
return(FactValue.Parse(returnValue));
case "<":
returnValue = (((FactDateValue)workingMemoryLhsValue).GetValue()).CompareTo((((FactDateValue)workingMemoryRhsValue).GetValue())) < 0 ? true : false;
return(FactValue.Parse(returnValue));
case "<=":
returnValue = (((FactDateValue)workingMemoryLhsValue).GetValue()).CompareTo((((FactDateValue)workingMemoryRhsValue).GetValue())) <= 0 ? true : false;
return(FactValue.Parse(returnValue));
}
// script = "new Date("+((FactDateValue)workingMemoryLhsValue).getValue().getYear()+"/"+((FactDateValue)workingMemoryLhsValue).getValue().getMonthValue()+"/"+((FactDateValue)workingMemoryLhsValue).getValue().getDayOfMonth()+")"+operator+"new Date("+((FactDateValue)workingMemoryRhsValue).getValue().getYear()+"/"+((FactDateValue)workingMemoryRhsValue).getValue().getMonthValue()+"/"+((FactDateValue)workingMemoryRhsValue).getValue().getDayOfMonth()+");" ;
}
else if (workingMemoryLhsValue != null && (workingMemoryLhsValue.GetFactValueType().Equals(FactValueType.DECIMAL) || workingMemoryLhsValue.GetFactValueType().Equals(FactValueType.DOUBLE) ||
workingMemoryLhsValue.GetFactValueType().Equals(FactValueType.INTEGER) || workingMemoryLhsValue.GetFactValueType().Equals(FactValueType.NUMBER)))
{
script = FactValue.GetValueInString(workingMemoryLhsValue.GetFactValueType(), workingMemoryLhsValue) + operatorString + FactValue.GetValueInString(workingMemoryRhsValue.GetFactValueType(), workingMemoryRhsValue);
}
else
{
if (workingMemoryRhsValue != null && workingMemoryLhsValue != null)
{
script = "'" + FactValue.GetValueInString(workingMemoryLhsValue.GetFactValueType(), workingMemoryLhsValue) + "' " + operatorString + " '" + FactValue.GetValueInString(workingMemoryRhsValue.GetFactValueType(), workingMemoryRhsValue) + "'";
}
}
Boolean result;
FactValue fv = null;
if (workingMemoryRhsValue != null && workingMemoryLhsValue != null)
{
result = Convert.ToBoolean(jint.Execute(script).GetCompletionValue().ToString());
fv = FactValue.Parse(result);
}
return(fv);
}
public override FactValue SelfEvaluate(Dictionary <string, FactValue> workingMemory, Jint.Engine jint)
{
/*
* calculation can only handle int, double(long) and difference in years between two dates at the moment.
* if difference in days or months is required then new 'keyword' must be introduced such as 'Diff Years', 'Diff Days', or 'Diff Months'
*/
string equationInString = FactValue.GetValueInString(this.equation.GetFactValueType(), this.equation);
string pattern = @"[-+/*()?:;,.""](\s*)";
string datePattern = @"([0-2]?[0-9]|3[0-1])/(0?[0-9]|1[0-2])/([0-9][0-9])?[0-9][0-9]|([0-9][0-9])?[0-9][0-9]/(0?[0-9]|1[0-2])/([0-2]?[0-9]|3[0-1])";
/*
* logic for this is as follows;
* 1. replace all variables with actual values from 'workingMemory'
* 2. find out if equation is about date (difference in years) calculation or not
* 3. if it is about date then call 'java.time.LocalDate'and 'java.time.temporal.ChronoUnit' package then do the calculation
* 3-1. if it is about int or double(long) then use plain Javascript
*
*/
string script = equationInString;
string tempScript = script;
string result;
if (Regex.IsMatch(equationInString, pattern))
{
string[] tempArray = Regex.Split(equationInString, pattern);
int tempArrayLength = tempArray.Length;
string tempItem;
for (int i = 0; i < tempArrayLength; i++)
{
tempItem = tempArray[i];
if (!string.IsNullOrEmpty(tempItem.Trim()) && (workingMemory.ContainsKey(tempItem.Trim()) && workingMemory[tempItem.Trim()] != null))
{
FactValue tempFv = workingMemory[tempItem.Trim()];
if (tempFv.GetFactValueType().Equals(FactValueType.DATE))
{
/*
* below line is temporary solution.
* Within next iteration it needs to be that this node should take dateFormatter for its constructor to determine which date format it needs
*/
string tempStr = DateTime.ParseExact(FactValue.GetValueInString(tempFv.GetFactValueType(), tempFv), dateFormatter, CultureInfo.InvariantCulture).ToString().Split(' ')[0].Trim();
tempScript = tempScript.Replace(tempItem.Trim(), tempStr);
}
else
{
tempScript = tempScript.Replace(tempItem.Trim(), FactValue.GetValueInString(workingMemory[tempItem.Trim()].GetFactValueType(), workingMemory[tempItem.Trim()]).Trim());
}
}
}
}
MatchCollection dateMatcher = Regex.Matches(tempScript, datePattern);
List <DateTime> dateTimeList = new List <DateTime>();
if (dateMatcher.Count > 0)
{
foreach (Match match in dateMatcher)
{
string[] datetimeString = Regex.Split(match.Groups[0].ToString(), @"/");
int year = 0;
int month = 0;
int day = 0;
if (Int32.TryParse(datetimeString[2], out year) && Int32.TryParse(datetimeString[1], out month) && Int32.TryParse(datetimeString[0], out day))
{
dateTimeList.Add(new DateTime(year, month, day));
}
}
result = (dateTimeList[0].Subtract(dateTimeList[1]).TotalDays / 365.25).ToString();
}
else
{
result = jint.Execute(tempScript).GetCompletionValue().ToString();
}
FactValue returnValue = null;
switch (Tokenizer.GetTokens(result).tokensString)
{
case "No":
int intResult = 0;
Int32.TryParse(result, out intResult);
returnValue = FactValue.Parse(intResult);
break;
case "De":
returnValue = FactValue.Parse(Convert.ToDouble(result));
break;
//there is no function for outcome to be a date at the moment E.g.The determination IS CALC(enrollment date + 5 days)
//case "Da":
default:
returnValue = FactValue.Parse(result);
break;
}
return(returnValue);
}
protected void SetValue(string lastTokenstring, string lastToken)
{
switch (lastTokenstring)
{
case "No":
int intValue = 0;
Int32.TryParse(lastToken, out intValue);
this.value = FactValue.Parse(intValue);
break;
case "Do":
double doubleValue = 0.0;
Double.TryParse(lastToken, out doubleValue);
this.value = FactValue.Parse(doubleValue);
break;
case "Da":
DateTime dateValue;
DateTime.TryParseExact(lastToken, "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out dateValue);
this.value = FactValue.Parse(dateValue);
break;
case "Url":
this.value = FactValue.ParseURL(lastToken);
break;
case "Id":
this.value = FactValue.ParseUUID(lastToken);
break;
case "Ha":
this.value = FactValue.ParseHash(lastToken);
break;
case "Q":
this.value = FactValue.ParseDefiString(lastToken);
break;
case "L":
case "M":
case "U":
case "C":
if (this.IsBoolean(lastToken))
{
this.value = string.Equals(lastToken, "false", StringComparison.OrdinalIgnoreCase)? FactValue.Parse(false) : FactValue.Parse(true);
}
else
{
Regex regex = new Regex(@"^([""\“])(.*)([""\”]$)");
Match match = regex.Match(lastToken);
if (match.Success)
{
string newS = match.Groups[2].Value;
this.value = FactValue.ParseDefiString(newS);
}
else
{
this.value = FactValue.Parse(lastToken);
}
}
break;
}
}
