private object UnwrapParamValue(JToken parameterToken, Type parameterType, IPluginManager pluginManager)
{
var defaultValue = new Func <object>(() => parameterToken.ToObject(parameterType));
var jobject = parameterToken as JObject;
if (jobject != null)
{
if (jobject.Type == JTokenType.Object)
{
if (parameterType == typeof(object))
{
return(defaultValue());
}
if (parameterType == typeof(string))
{
// If the parameter is a JSON object, but the parameter type is string return the raw JSON.
return(jobject.ToString());
}
JToken typeValue, payload;
if (!jobject.TryGetValue("__type__", out typeValue) || !jobject.TryGetValue("__payload__", out payload))
{
return(defaultValue());
}
var payloadJObj = payload as JObject;
if (payloadJObj == null)
{
return(defaultValue());
}
if (payloadJObj.Type != JTokenType.Object)
{
return(defaultValue());
}
if ((string)typeValue != "reference")
{
return(defaultValue());
}
JToken dynamicPluginGuid;
if (!payloadJObj.TryGetValue("id", out dynamicPluginGuid))
{
return(defaultValue());
}
var dynamicPlugin = pluginManager.GetLocalPlugin((string)dynamicPluginGuid);
if (dynamicPlugin != null)
{
return(dynamicPlugin.NativeObject);
}
throw new NullReferenceException("Failed to map Javascript parameter to native dynamic plugin object ");
}
}
var jarray = parameterToken as JArray;
if (jarray != null)
{
if (jarray.Type != JTokenType.Array)
{
return(defaultValue());
}
if (parameterType == typeof(object))
{
return(defaultValue());
}
var elementType = parameterType.GetElementType();
if (elementType == null)
{
if (!typeof(JArray).IsAssignableFrom(parameterType) && !typeof(Array).IsAssignableFrom(parameterType))
{
return(parameterType == typeof(string) ? jarray.ToString() : null);
}
if (typeof(JArray).IsAssignableFrom(parameterType))
{
return(defaultValue());
}
}
elementType = elementType ?? typeof(object);
var nativeArray = Array.CreateInstance(elementType, jarray.Count);
for (var i = 0; i < jarray.Count; i++)
{
nativeArray.SetValue(Convert.ChangeType(UnwrapParamValue(jarray[i], elementType, pluginManager), elementType), i);
}
return(nativeArray);
}
return(defaultValue());
}
