private static object ParseFunction(string functionString, string inputJson, JArray array, JToken currentArrayElement, JUSTContext localContext)
{
try
{
object output;
string functionName, argumentString;
if (!ExpressionHelper.TryParseFunctionNameAndArguments(functionString, out functionName, out argumentString))
{
return(functionName);
}
string[] arguments = ExpressionHelper.GetArguments(argumentString);
var listParameters = new List <object>();
if (functionName == "ifcondition")
{
var condition = ParseArgument(inputJson, array, currentArrayElement, arguments[0], localContext);
var value = ParseArgument(inputJson, array, currentArrayElement, arguments[1], localContext);
var index = condition.ToString().ToLower() == value.ToString().ToLower() ? 2 : 3;
output = ParseArgument(inputJson, array, currentArrayElement, arguments[index], localContext);
}
else
{
int i = 0;
for (; i < (arguments?.Length ?? 0); i++)
{
listParameters.Add(ParseArgument(inputJson, array, currentArrayElement, arguments[i], localContext));
}
listParameters.Add(localContext ?? GlobalContext);
var parameters = listParameters.ToArray();
if (new[] { "currentvalue", "currentindex", "lastindex", "lastvalue" }.Contains(functionName))
{
output = ReflectionHelper.caller(null, "JUST.Transformer", functionName, new object[] { array, currentArrayElement }, true, localContext ?? GlobalContext);
}
else if (new[] { "currentvalueatpath", "lastvalueatpath" }.Contains(functionName))
{
output = ReflectionHelper.caller(null, "JUST.Transformer", functionName, new object[] { array, currentArrayElement, parameters[0] }, true, localContext ?? GlobalContext);
}
else if (functionName == "currentproperty")
{
output = ReflectionHelper.caller(null, "JUST.Transformer", functionName,
new object[] { array, currentArrayElement, localContext ?? GlobalContext },
false, localContext ?? GlobalContext);
}
else if (functionName == "customfunction")
{
output = CallCustomFunction(parameters, localContext);
}
else if (localContext?.IsRegisteredCustomFunction(functionName) ?? false)
{
var methodInfo = localContext.GetCustomMethod(functionName);
output = ReflectionHelper.InvokeCustomMethod(methodInfo, parameters, true, localContext ?? GlobalContext);
}
else if (GlobalContext.IsRegisteredCustomFunction(functionName))
{
var methodInfo = GlobalContext.GetCustomMethod(functionName);
output = ReflectionHelper.InvokeCustomMethod(methodInfo, parameters, true, localContext ?? GlobalContext);
}
else if (Regex.IsMatch(functionName, ReflectionHelper.EXTERNAL_ASSEMBLY_REGEX))
{
output = ReflectionHelper.CallExternalAssembly(functionName, parameters, localContext ?? GlobalContext);
}
else if (new[] { "xconcat", "xadd",
"mathequals", "mathgreaterthan", "mathlessthan", "mathgreaterthanorequalto", "mathlessthanorequalto",
"stringcontains", "stringequals" }.Contains(functionName))
{
object[] oParams = new object[1];
oParams[0] = parameters;
output = ReflectionHelper.caller(null, "JUST.Transformer", functionName, oParams, true, localContext ?? GlobalContext);
}
else if (functionName == "applyover")
{
var contextInput = GetInputToken(localContext);
var input = JToken.Parse(Transform(parameters[0].ToString(), contextInput.ToString(), localContext));
(localContext ?? GlobalContext).Input = input;
output = ParseFunction(parameters[1].ToString().Trim('\''), inputJson, array, currentArrayElement, localContext ?? GlobalContext);
(localContext ?? GlobalContext).Input = contextInput;
}
else
{
var input = ((JUSTContext)parameters.Last()).Input;
if (currentArrayElement != null && functionName != "valueof")
{
((JUSTContext)parameters.Last()).Input = currentArrayElement;
}
output = ReflectionHelper.caller(null, "JUST.Transformer", functionName, parameters, true, localContext ?? GlobalContext);
((JUSTContext)parameters.Last()).Input = input;
}
}
return(output);
}
catch (Exception ex)
{
throw new Exception("Error while calling function : " + functionString + " - " + ex.Message, ex);
}
}
private static void RecursiveEvaluate(JToken parentToken, string inputJson, JArray parentArray, JToken currentArrayToken, JUSTContext localContext)
{
if (parentToken == null)
{
return;
}
JEnumerable <JToken> tokens = parentToken.Children();
List <JToken> selectedTokens = null;
Dictionary <string, JToken> tokensToReplace = null;
List <JToken> tokensToDelete = null;
List <string> loopProperties = null;
JArray arrayToForm = null;
JObject dictToForm = null;
List <JToken> tokenToForm = null;
List <JToken> tokensToAdd = null;
bool isLoop = false;
bool isBulk = false;
foreach (JToken childToken in tokens)
{
if (childToken.Type == JTokenType.Array && (parentToken as JProperty)?.Name.Trim() != "#")
{
JArray arrayToken = childToken as JArray;
List <object> itemsToAdd = new List <object>();
foreach (JToken arrEl in childToken.Children())
{
object itemToAdd = arrEl.Value <JToken>();
if (arrEl.Type == JTokenType.String && arrEl.ToString().Trim().StartsWith("#"))
{
object value = ParseFunction(arrEl.ToString(), inputJson, parentArray, currentArrayToken, localContext);
itemToAdd = value;
}
itemsToAdd.Add(itemToAdd);
}
arrayToken.RemoveAll();
foreach (object itemToAdd in itemsToAdd)
{
if (itemToAdd is Array)
{
foreach (var item in itemToAdd as Array)
{
arrayToken.Add(Utilities.GetNestedData(item));
}
}
else
{
arrayToken.Add(JToken.FromObject(itemToAdd));
}
}
}
if (childToken.Type == JTokenType.Property)
{
JProperty property = childToken as JProperty;
if (property.Name != null && property.Name == "#" && property.Value.Type == JTokenType.Array)
{
JArray values = property.Value as JArray;
JEnumerable <JToken> arrayValues = values.Children();
foreach (JToken arrayValue in arrayValues)
{
if (arrayValue.Type == JTokenType.String &&
ExpressionHelper.TryParseFunctionNameAndArguments(
arrayValue.Value <string>().Trim(), out string functionName, out string arguments))
{
if (functionName == "copy")
{
if (selectedTokens == null)
{
selectedTokens = new List <JToken>();
}
selectedTokens.Add(Copy(arguments, inputJson, parentArray, currentArrayToken, localContext));
}
else if (functionName == "replace")
{
if (tokensToReplace == null)
{
tokensToReplace = new Dictionary <string, JToken>();
}
var replaceResult = Replace(arguments, inputJson, parentArray, currentArrayToken, localContext);
tokensToReplace.Add(replaceResult.Key, replaceResult.Value);
}
else if (functionName == "delete")
{
if (tokensToDelete == null)
{
tokensToDelete = new List <JToken>();
}
tokensToDelete.Add(Delete(arguments, inputJson, parentArray, currentArrayToken, localContext));
}
}
}
isBulk = true;
}
if (property.Name != null && property.Value.ToString().Trim().StartsWith("#") &&
!property.Name.Contains("#eval") && !property.Name.Contains("#ifgroup") &&
!property.Name.Contains("#loop"))
{
object newValue = ParseFunction(property.Value.ToString(), inputJson, parentArray, currentArrayToken, localContext);
property.Value = GetToken(newValue, localContext);
}
/* For looping*/
isLoop = false;
if (property.Name != null && property.Name.Contains("#eval"))
{
ExpressionHelper.TryParseFunctionNameAndArguments(property.Name, out string functionName, out string functionString);
object functionResult = ParseFunction(functionString, inputJson, parentArray, currentArrayToken, localContext);
JProperty clonedProperty = new JProperty(functionResult.ToString(), ParseFunction(property.Value.ToString(), inputJson, parentArray, currentArrayToken, localContext));
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
if (tokensToAdd == null)
{
tokensToAdd = new List <JToken>
{
clonedProperty
};
}
}
if (property.Name != null && property.Name.Contains("#ifgroup"))
{
ExpressionHelper.TryParseFunctionNameAndArguments(property.Name, out string functionName, out string functionString);
object functionResult = ParseFunction(functionString, inputJson, parentArray, currentArrayToken, localContext);
bool result = false;
try
{
result = (bool)ReflectionHelper.GetTypedValue(typeof(bool), functionResult, GetEvaluationMode(localContext));
}
catch
{
if (IsStrictMode(localContext))
{
throw;
}
result = false;
}
if (result == true)
{
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
RecursiveEvaluate(childToken, inputJson, parentArray, currentArrayToken, localContext);
if (tokenToForm == null)
{
tokenToForm = new List <JToken>();
}
foreach (JToken grandChildToken in childToken.Children())
{
tokenToForm.Add(grandChildToken.DeepClone());
}
}
else
{
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
}
isLoop = true;
}
if (property.Name != null && property.Name.Contains("#loop"))
{
ExpressionHelper.TryParseFunctionNameAndArguments(property.Name, out string functionName, out string arguments);
var token = currentArrayToken != null && functionName == "loopwithincontext" ? currentArrayToken : GetInputToken(localContext);
var strArrayToken = ParseArgument(inputJson, parentArray, currentArrayToken, arguments, localContext) as string;
bool isDictionary = false;
JToken arrayToken;
try
{
arrayToken = token.SelectToken(strArrayToken);
if (Regex.IsMatch(strArrayToken ?? string.Empty, "\\[.+\\]$") && arrayToken.Type != JTokenType.Array)
{
arrayToken = new JArray(arrayToken);
}
if (arrayToken is IDictionary <string, JToken> dict) //JObject is a dictionary
{
isDictionary = true;
JArray arr = new JArray();
foreach (var item in dict)
{
arr.Add(new JObject {
{ item.Key, item.Value }
});
}
arrayToken = arr;
}
}
catch
{
var multipleTokens = token.SelectTokens(strArrayToken);
arrayToken = new JArray(multipleTokens);
}
JArray array = arrayToken as JArray;
if (array != null)
{
using (IEnumerator <JToken> elements = array.GetEnumerator())
{
arrayToForm = new JArray();
if (!isDictionary)
{
while (elements.MoveNext())
{
JToken clonedToken = childToken.DeepClone();
RecursiveEvaluate(clonedToken, inputJson, array, elements.Current, localContext);
foreach (JToken replacedProperty in clonedToken.Children())
{
arrayToForm.Add(replacedProperty);
}
}
}
else
{
dictToForm = new JObject();
while (elements.MoveNext())
{
JToken clonedToken = childToken.DeepClone();
RecursiveEvaluate(clonedToken, inputJson, array, elements.Current, localContext);
foreach (JToken replacedProperty in clonedToken.Children().Select(t => t.First))
{
dictToForm.Add(replacedProperty);
}
}
}
}
}
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
isLoop = true;
}
/*End looping */
}
if (childToken.Type == JTokenType.String && childToken.Value <string>().Trim().StartsWith("#") &&
parentArray != null && currentArrayToken != null)
{
object newValue = ParseFunction(childToken.Value <string>(), inputJson, parentArray, currentArrayToken, localContext);
JToken replaceToken = GetToken(newValue, localContext);
childToken.Replace(replaceToken);
}
if (!isLoop && !isBulk)
{
RecursiveEvaluate(childToken, inputJson, parentArray, currentArrayToken, localContext);
}
}
if (selectedTokens != null)
{
foreach (JToken selectedToken in selectedTokens)
{
if (selectedToken != null)
{
JEnumerable <JToken> copyChildren = selectedToken.Children();
foreach (JToken copyChild in copyChildren)
{
JProperty property = copyChild as JProperty;
(parentToken as JObject).Add(property.Name, property.Value);
}
}
}
}
if (tokensToReplace != null)
{
foreach (KeyValuePair <string, JToken> tokenToReplace in tokensToReplace)
{
JToken selectedToken = (parentToken as JObject).SelectToken(tokenToReplace.Key);
selectedToken.Replace(tokenToReplace.Value);
}
}
if (tokensToDelete != null)
{
foreach (string selectedToken in tokensToDelete)
{
JToken tokenToRemove = parentToken.SelectToken(selectedToken);
if (tokenToRemove != null)
{
tokenToRemove.Ancestors().First().Remove();
}
}
}
if (tokensToAdd != null)
{
foreach (JToken token in tokensToAdd)
{
(parentToken as JObject).Add((token as JProperty).Name, (token as JProperty).Value);
}
}
if (tokenToForm != null)
{
foreach (JToken token in tokenToForm)
{
foreach (JProperty childToken in token.Children())
{
(parentToken as JObject).Add(childToken.Name, childToken.Value);
}
}
}
if (parentToken is JObject jObject)
{
jObject.Remove("#");
}
if (loopProperties != null)
{
foreach (string propertyToDelete in loopProperties)
{
if (dictToForm == null && arrayToForm == null && parentToken.Count() <= 1)
{
parentToken.Replace(JValue.CreateNull());
}
else
{
(parentToken as JObject).Remove(propertyToDelete);
}
}
}
if (dictToForm != null)
{
parentToken.Replace(dictToForm);
}
else if (arrayToForm != null)
{
if (parentToken.Parent != null && parentToken.Parent is JArray arr)
{
foreach (var item in arrayToForm)
{
arr.Add(item);
}
if (!parentToken.HasValues)
{
var tmp = parentToken;
parentToken = arr;
tmp.Remove();
}
}
else if (parentToken.Parent != null)
{
parentToken.Replace(arrayToForm);
}
}
}
private static void RecursiveEvaluate(JToken parentToken, string inputJson, JArray parentArray, JToken currentArrayToken, JUSTContext localContext)
{
if (parentToken == null)
{
return;
}
JEnumerable <JToken> tokens = parentToken.Children();
List <JToken> selectedTokens = null;
Dictionary <string, JToken> tokensToReplace = null;
List <JToken> tokensToDelete = null;
List <string> loopProperties = null;
JArray arrayToForm = null;
List <JToken> tokenToForm = null;
List <JToken> tokensToAdd = null;
bool isLoop = false;
foreach (JToken childToken in tokens)
{
if (childToken.Type == JTokenType.Array && (parentToken as JProperty).Name.Trim() != "#")
{
JArray arrayToken = childToken as JArray;
List <object> itemsToAdd = new List <object>();
foreach (JToken arrEl in childToken.Children())
{
object itemToAdd = arrEl.Value <JToken>();
if (arrEl.Type == JTokenType.String && arrEl.ToString().Trim().StartsWith("#"))
{
object value = ParseFunction(arrEl.ToString(), inputJson, parentArray, currentArrayToken, localContext);
itemToAdd = value;
}
itemsToAdd.Add(itemToAdd);
}
arrayToken.RemoveAll();
foreach (object itemToAdd in itemsToAdd)
{
arrayToken.Add(itemToAdd);
}
}
if (childToken.Type == JTokenType.Property)
{
JProperty property = childToken as JProperty;
if (property.Name != null && property.Name == "#" && property.Value.Type == JTokenType.Array)
{
JArray values = property.Value as JArray;
JEnumerable <JToken> arrayValues = values.Children();
foreach (JToken arrayValue in arrayValues)
{
if (arrayValue.Type == JTokenType.String &&
ExpressionHelper.TryParseFunctionNameAndArguments(
arrayValue.Value <string>().Trim(), out string functionName, out string arguments))
{
if (functionName == "copy")
{
if (selectedTokens == null)
{
selectedTokens = new List <JToken>();
}
selectedTokens.Add(Copy(arguments, inputJson, localContext));
}
else if (functionName == "replace")
{
if (tokensToReplace == null)
{
tokensToReplace = new Dictionary <string, JToken>();
}
var replaceResult = Replace(arguments, inputJson, localContext);
tokensToReplace.Add(replaceResult.Key, replaceResult.Value);
}
else if (functionName == "delete")
{
if (tokensToDelete == null)
{
tokensToDelete = new List <JToken>();
}
tokensToDelete.Add(Delete(arguments, inputJson, localContext));
}
}
}
}
if (property.Name != null && property.Value.ToString().Trim().StartsWith("#") &&
!property.Name.Contains("#eval") && !property.Name.Contains("#ifgroup") &&
!property.Name.Contains("#loop"))
{
object newValue = ParseFunction(property.Value.ToString(), inputJson, parentArray, currentArrayToken, localContext);
property.Value = GetToken(newValue, localContext);
}
/* For looping*/
isLoop = false;
if (property.Name != null && property.Name.Contains("#eval"))
{
ExpressionHelper.TryParseFunctionNameAndArguments(property.Name, out string functionName, out string functionString);
object functionResult = ParseFunction(functionString, inputJson, null, null, localContext);
JProperty clonedProperty = new JProperty(functionResult.ToString(), property.Value);
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
if (tokensToAdd == null)
{
tokensToAdd = new List <JToken>
{
clonedProperty
};
}
}
if (property.Name != null && property.Name.Contains("#ifgroup"))
{
ExpressionHelper.TryParseFunctionNameAndArguments(property.Name, out string functionName, out string functionString);
object functionResult = ParseFunction(functionString, inputJson, null, null, localContext);
bool result = false;
try
{
result = (bool)ReflectionHelper.GetTypedValue(typeof(bool), functionResult, GetEvaluationMode(localContext));
}
catch
{
if (IsStrictMode(localContext))
{
throw;
}
result = false;
}
if (result == true)
{
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
RecursiveEvaluate(childToken, inputJson, parentArray, currentArrayToken, localContext);
if (tokenToForm == null)
{
tokenToForm = new List <JToken>();
}
foreach (JToken grandChildToken in childToken.Children())
{
tokenToForm.Add(grandChildToken.DeepClone());
}
}
else
{
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
}
isLoop = true;
}
if (property.Name != null && property.Name.Contains("#loop"))
{
string strArrayToken = property.Name.Substring(6, property.Name.Length - 7);
var jsonToLoad = inputJson;
if (currentArrayToken != null && property.Name.Contains("#loopwithincontext"))
{
strArrayToken = property.Name.Substring(19, property.Name.Length - 20);
jsonToLoad = JsonConvert.SerializeObject(currentArrayToken);
}
JToken token = JsonConvert.DeserializeObject <JObject>(jsonToLoad);
JToken arrayToken = null;
if (strArrayToken.Contains("#"))
{
int sIndex = strArrayToken.IndexOf("#");
string sub1 = strArrayToken.Substring(0, sIndex);
int indexOfENdFubction = GetIndexOfFunctionEnd(strArrayToken);
if (indexOfENdFubction > sIndex && sIndex > 0)
{
string sub2 = strArrayToken.Substring(indexOfENdFubction + 1, strArrayToken.Length - indexOfENdFubction - 1);
string functionResult = ParseFunction(strArrayToken.Substring(sIndex, indexOfENdFubction - sIndex + 1), inputJson, parentArray, currentArrayToken, localContext).ToString();
strArrayToken = sub1 + functionResult + sub2;
}
}
try
{
arrayToken = token.SelectToken(strArrayToken);
if (arrayToken is JObject)
{
arrayToken = new JArray(arrayToken);
}
}
catch
{
var multipleTokens = token.SelectTokens(strArrayToken);
arrayToken = new JArray(multipleTokens);
}
if (arrayToken == null)
{
arrayToForm = new JArray();
}
else
{
JArray array = (JArray)arrayToken;
IEnumerator <JToken> elements = array.GetEnumerator();
while (elements.MoveNext())
{
if (arrayToForm == null)
{
arrayToForm = new JArray();
}
JToken clonedToken = childToken.DeepClone();
RecursiveEvaluate(clonedToken, inputJson, array, elements.Current, localContext);
foreach (JToken replacedProperty in clonedToken.Children())
{
arrayToForm.Add(replacedProperty);
}
}
}
if (loopProperties == null)
{
loopProperties = new List <string>();
}
loopProperties.Add(property.Name);
isLoop = true;
}
/*End looping */
}
if (childToken.Type == JTokenType.String && childToken.Value <string>().Trim().StartsWith("#") &&
parentArray != null && currentArrayToken != null)
{
object newValue = ParseFunction(childToken.Value <string>(), inputJson, parentArray, currentArrayToken, localContext);
JToken replaceToken = GetToken(newValue, localContext);
childToken.Replace(replaceToken);
}
if (!isLoop)
{
RecursiveEvaluate(childToken, inputJson, parentArray, currentArrayToken, localContext);
}
}
if (selectedTokens != null)
{
foreach (JToken selectedToken in selectedTokens)
{
if (selectedToken != null)
{
JEnumerable <JToken> copyChildren = selectedToken.Children();
foreach (JToken copyChild in copyChildren)
{
JProperty property = copyChild as JProperty;
(parentToken as JObject).Add(property.Name, property.Value);
}
}
}
}
if (tokensToReplace != null)
{
foreach (KeyValuePair <string, JToken> tokenToReplace in tokensToReplace)
{
JToken selectedToken = (parentToken as JObject).SelectToken(tokenToReplace.Key);
if (selectedToken != null && selectedToken is JObject)
{
JObject selectedObject = selectedToken as JObject;
selectedObject.RemoveAll();
JEnumerable <JToken> copyChildren = tokenToReplace.Value.Children();
foreach (JToken copyChild in copyChildren)
{
JProperty property = copyChild as JProperty;
selectedObject.Add(property.Name, property.Value);
}
}
if (selectedToken != null && selectedToken is JValue)
{
JValue selectedObject = selectedToken as JValue;
selectedObject.Value = tokenToReplace.Value.ToString();
}
}
}
if (tokensToDelete != null)
{
foreach (string selectedToken in tokensToDelete)
{
JToken tokenToRemove = parentToken.SelectToken(selectedToken);
if (tokenToRemove != null)
{
tokenToRemove.Ancestors().First().Remove();
}
}
}
if (tokensToAdd != null)
{
foreach (JToken token in tokensToAdd)
{
(parentToken as JObject).Add((token as JProperty).Name, (token as JProperty).Value);
}
}
if (tokenToForm != null)
{
foreach (JToken token in tokenToForm)
{
foreach (JProperty childToken in token.Children())
{
(parentToken as JObject).Add(childToken.Name, childToken.Value);
}
}
}
if (parentToken is JObject)
{
(parentToken as JObject).Remove("#");
}
if (loopProperties != null)
{
foreach (string propertyToDelete in loopProperties)
{
(parentToken as JObject).Remove(propertyToDelete);
}
}
if (arrayToForm != null)
{
parentToken.Replace(arrayToForm);
}
}