/**
* Reads the value form Json Reader for Array Types and cretaes instances
*/
private static void ReadArray(object currentInst, HtmJsonTextReder reader, Type currentMemberType)
{
var prop = GetPropertyName(reader);
Type lstType = Type.GetType(currentMemberType.AssemblyQualifiedName.Replace("[]", ""));
List <object> elements = new List <object>();
do
{
var val = reader.ReadValue(lstType);
if (val == null)
{
break;
}
else
{
elements.Add(val);
}
} while (true);
//Type genericList1 = typeof(List<>);
//Type genericList2 = genericList1.MakeGenericType(lstType);
dynamic arr;
if (currentMemberType.Name.Contains("List"))
{
arr = Activator.CreateInstance(currentMemberType);
for (int i = 0; i < elements.Count; i++)
{
arr.Add(elements[i]);
}
}
else
{
arr = Array.CreateInstance(lstType, elements.Count);
for (int i = 0; i < elements.Count; i++)
{
arr.SetValue(elements[i], i);
}
}
SetMemberValue(currentInst, prop, arr);
//Type t = typeof(List<>).MakeGenericType(lstType);
//arr.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, currentInst, (object[]) arr);
//var listOfElements = Activator.CreateInstance(t);
}
/**
* This method Deserializes the Json string based on the output of the Json Text Reader.
* The type of the property is fetched through Reflection and Creates an instance of the specified type.
* Lower level methods are called to set the values for the particular property
*/
public static T Deserialize <T>(string fileName) where T : class
{
var settings = new JsonSerializerSettings {
TypeNameHandling = TypeNameHandling.Auto
};
var json = File.ReadAllText(fileName);
T res = JsonConvert.DeserializeObject <T>(json, settings);
List <object> instanceList = new List <object>();
int instanceCnt = 0;
object currentInst = null;
HtmJsonTextReder reader = new HtmJsonTextReder(new StringReader(json));
Type currentMemberType = null;
while (reader.Read())
{
if (reader.Value != null)
{
if (reader.IsProperty)
{
MemberInfo memberInfo;
currentMemberType = GetMemberType(GetPropertyName(reader), currentInst.GetType(), out memberInfo);
if (currentMemberType.IsPrimitive || currentMemberType == typeof(string))
{
var val = reader.ReadValue(currentMemberType);
SetMemberValue(currentInst, GetPropertyName(reader), val);
}
}
else if (reader.IsValue)
{
}
Console.WriteLine("Token: {0}, Value: {1}", reader.TokenType, reader.Value);
}
else
{
if (reader.IsStart)
{
if (instanceCnt == 0)
{
instanceList.Add(currentInst = Activator.CreateInstance <T>());
instanceCnt++;
}
else
{
string propName = GetPropertyName(reader);
MemberInfo membInf;
Type memberType = GetMemberType(propName, currentInst.GetType(), out membInf);
if (memberType == null)
{
Debug.WriteLine($"The prop/field '{reader.Path}' cannot be found on the object '{currentInst.GetType().Name}'");
}
else
{
var propInst = Activator.CreateInstance(memberType);
SetMemberValue(currentInst, propName, propInst);
instanceList.Add(currentInst = propInst);
instanceCnt++;
}
}
}
else if (reader.IsArrayStart)
{
ReadArray(currentInst, reader, currentMemberType);
}
else if (reader.IsObjectEnd)
{
instanceCnt--;
instanceList.RemoveAt(instanceCnt);
currentInst = instanceList[instanceList.Count - 1];
}
else
{
}
Console.WriteLine("Token: {0}", reader.TokenType);
}
}
return(default(T));
}