public Rule(string sourceColumn, string destinationColumn, string dataType, MappingRule mappingRule)
{
SourceColumn = sourceColumn;
DestinationColumn = destinationColumn;
DataType = dataType;
ComplexType = mappingRule;
}
public Rule(string sourceColumn, string destinationColumn, string dataType, MappingRule mappingRule, Transform transform)
{
SourceColumn = sourceColumn;
DestinationColumn = destinationColumn;
DataType = dataType;
ComplexType = mappingRule;
TransformValue = transform;
}
/// <summary>
/// Creates an intance of destination type and sets the properties
/// </summary>
/// <param name="jsonObject"></param>
/// <param name="mapping"></param>
/// <returns></returns>
private object Execute(JObject jsonObject, MappingRule mapping)
{
Type type = Type.GetType(mapping.DestinationType, true);
var entity = Activator.CreateInstance(type);
// Set the value for each item in destinationType
foreach (var rule in mapping.TruthTable)
{
var propertyInfo = entity.GetType().GetProperty(rule.DestinationColumn);
if (propertyInfo != null)
{
if (rule.ComplexType == null)
{
string valueType;
var value = GetValue(jsonObject, rule.SourceColumn, rule.TransformValue, out valueType);
if (value != null)
{
if (rule.DataType == null)
{
rule.DataType = valueType;
}
var finalValue = handler.GetHandler <TypeConverterHandler>()
.Run(JObject.FromObject(rule), JObject.FromObject(new { value = value }));
propertyInfo.SetValue(entity, finalValue, null);
}
else
{
propertyInfo.SetValue(entity, value, null);
}
}
else
{
propertyInfo.SetValue(entity, Execute(jsonObject, rule.ComplexType), null);
}
}
}
return(entity);
}
private dynamic TransformJArray(JObject jsonObject, MappingRule mapping, bool ignoreNullVaue)
{
var tokens = jsonObject.SelectTokens(mapping.Node);
JArray array = new JArray();
bool hasToken = false;
foreach (var item in tokens)
{
hasToken = true;
if (string.Equals(item.GetType().Name, "jarray", StringComparison.OrdinalIgnoreCase))
{
JArray itemJArray = (JArray)item;
if (itemJArray.Any())
{
foreach (var a in itemJArray)
{
var o = (JToken)JsonConvert.DeserializeObject(JsonConvert.SerializeObject(ExecuteToJson((JObject)a, mapping)), JsonConvertSettings);
array.Add(o);
}
}
else
{
itemJArray.Add(new JObject(new JProperty("temp", "")));
array.Add((JToken)JsonConvert.DeserializeObject(JsonConvert.SerializeObject(ExecuteToJson((JObject)item.FirstOrDefault(), mapping))));
}
}
else
{
array.Add((JToken)JsonConvert.DeserializeObject(JsonConvert.SerializeObject(ExecuteToJson((JObject)item, mapping)), JsonConvertSettings));
}
}
if (!hasToken && mapping.IgnoreEmptyArray)
{
return(null);
}
return(array);
}
protected JObject ExecuteToJson(JObject jsonObject, MappingRule mapping)
{
var jsonString = new JsonTransform();
foreach (var rule in mapping.TruthTable)
{
// handle transpose
if (rule.TransformValue != null && rule.TransformValue.Type != null && string.Equals(rule.TransformValue.Type, "promoteArrayToProperty", StringComparison.OrdinalIgnoreCase))
{
Dictionary <string, object> transposeResponse = handler.GetHandler <TransposeHandler>()
.Run(JObject.FromObject(rule), jsonObject);
if (transposeResponse != null)
{
jsonString.Json.AddRange(transposeResponse);
}
}
else if (!string.IsNullOrEmpty(rule.DestinationColumn))
{
if (rule.ComplexType == null)
{
// Handle Jvalue
string valueType;
string destinationValue = rule.DestinationColumn.StartsWith("$") ? jsonObject.SelectToken(rule.DestinationColumn).ToString() : rule.DestinationColumn;
var value = GetValue(jsonObject, rule.SourceColumn, rule.TransformValue, out valueType);
if (rule.DataType == null)
{
rule.DataType = valueType;
}
var finalValue = handler.GetHandler <TypeConverterHandler>()
.Run(JObject.FromObject(rule), JObject.FromObject(new { value = value }));
if (finalValue != null || finalValue.Type != JTokenType.Null || (finalValue == null && !mapping.IgnoreNullValue) || (finalValue.Type == JTokenType.Null && !mapping.IgnoreNullValue))
{
jsonString.Json.Add(destinationValue, finalValue);
}
}
else if (rule.ComplexType.DataType != null && rule.ComplexType.DataType.ToUpperInvariant().Equals("JARRAY"))
{
var result = TransformJArray(jsonObject, rule.ComplexType, mapping.IgnoreNullValue);
if (result != null)
{
jsonString.Json.Add(rule.DestinationColumn, result);
}
}
else
{
// Recursive call to handle complex type
var result = ExecuteToJson(jsonObject, rule.ComplexType);
if (result != null)
{
if (!string.IsNullOrWhiteSpace(rule.DataType))
{
jsonString.Json.Add(rule.DestinationColumn, handler.GetHandler <TypeConverterHandler>()
.Run(JObject.FromObject(rule), JObject.FromObject(new { value = result })));
}
else
{
jsonString.Json.Add(rule.DestinationColumn, result);
}
}
}
}
}
return(JObject.FromObject(jsonString));
}
