private PatchResult <JObject> TryPrivatePatch(JObject JSON,
JObject Patch)
{
foreach (var property in Patch)
{
if (property.Key == "id")
{
return(PatchResult <JObject> .Failed(JSON,
"Patching the 'identification' of a connector is not allowed!"));
}
else if (property.Value is null)
{
JSON.Remove(property.Key);
}
else if (property.Value is JObject subObject)
{
if (JSON.ContainsKey(property.Key))
{
if (JSON[property.Key] is JObject oldSubObject)
{
//ToDo: Perhaps use a more generic JSON patch here!
// PatchObject.Apply(ToJSON(), EVSEPatch),
var patchResult = TryPrivatePatch(oldSubObject, subObject);
if (patchResult.IsSuccess)
{
JSON[property.Key] = patchResult.PatchedData;
}
}
else
{
JSON[property.Key] = subObject;
}
}
else
{
JSON.Add(property.Key, subObject);
}
}
//else if (property.Value is JArray subArray)
//{
//}
else
{
JSON[property.Key] = property.Value;
}
}
return(PatchResult <JObject> .Success(JSON));
}
/// <summary>
/// Try to patch the JSON representaion of this connector.
/// </summary>
/// <param name="ConnectorPatch">The JSON merge patch.</param>
/// <param name="AllowDowngrades">Allow to set the 'lastUpdated' timestamp to an earlier value.</param>
public PatchResult <Connector> TryPatch(JObject ConnectorPatch,
Boolean AllowDowngrades = false)
{
if (ConnectorPatch == null)
{
return(PatchResult <Connector> .Failed(this,
"The given connector patch must not be null!"));
}
lock (patchLock)
{
if (ConnectorPatch["last_updated"] is null)
{
ConnectorPatch["last_updated"] = DateTime.UtcNow.ToIso8601();
}
else if (AllowDowngrades == false &&
ConnectorPatch["last_updated"].Type == JTokenType.Date &&
(ConnectorPatch["last_updated"].Value <DateTime>().ToIso8601().CompareTo(LastUpdated.ToIso8601()) < 1))
{
return(PatchResult <Connector> .Failed(this,
"The 'lastUpdated' timestamp of the connector patch must be newer then the timestamp of the existing connector!"));
}
var patchResult = TryPrivatePatch(ToJSON(), ConnectorPatch);
if (patchResult.IsFailed)
{
return(PatchResult <Connector> .Failed(this,
patchResult.ErrorResponse));
}
if (TryParse(patchResult.PatchedData,
out Connector PatchedConnector,
out String ErrorResponse))
{
return(PatchResult <Connector> .Success(PatchedConnector,
ErrorResponse));
}