public void CreatePatch(JToken original, JToken modified, JsonPatchPath path, IPatchContext context)
{
var originalObj = (JObject)original;
var modifiedObj = (JObject)modified;
var allProperties = new HashSet <string>();
AddProperties(allProperties, originalObj);
AddProperties(allProperties, modifiedObj);
foreach (var propertyName in allProperties)
{
var originalValue = GetPropertyValue(originalObj, propertyName);
var modifiedValue = GetPropertyValue(modifiedObj, propertyName);
var propertyPath = path.AddSegment(propertyName);
context.CreatePatch(originalValue, modifiedValue, propertyPath);
}
}
public void CreatePatch(JToken original, JToken modified, JsonPatchPath path, IPatchContext context)
{
var originalArr = (JArray)original;
var modifiedArr = (JArray)modified;
var items = originalArr.ToList();
// remove all items that were removed
var newArrayItems = modifiedArr.ToList();
for (var i = items.Count - 1; i >= 0; i--)
{
var item = items[i];
var existingIndex = newArrayItems.FindLastIndex(x => JToken.DeepEquals(x, item));
if (existingIndex > -1)
{
newArrayItems.RemoveAt(existingIndex);
}
else
{
context.Document.Remove(path.AtIndex(i).ToString());
items.RemoveAt(i);
}
}
// either move or add items that changed
for (var i = 0; i < modifiedArr.Count; i++)
{
var modifiedItem = modifiedArr[i];
var existingItem = items.FindIndex(token => JToken.DeepEquals(modifiedItem, token));
if (existingItem > -1)
{
if (existingItem == i)
{
continue;
}
var origItem = items[existingItem];
var sourcePath = path.AtIndex(existingItem);
var targetPath = path.AtIndex(i);
if (modifiedArr.Count > existingItem && JToken.DeepEquals(modifiedArr[existingItem], origItem))
{
// the item also exists at the current position, we have to copy
context.Document.Copy(sourcePath.ToString(), targetPath.ToString());
items.Insert(i, origItem);
}
else
{
context.Document.Move(sourcePath.ToString(), targetPath.ToString());
items.RemoveAt(existingItem);
items.Insert(i, origItem);
}
}
else
{
var itemPath = items.Count == i?path.AddSegment("-") : path.AtIndex(i);
context.Document.Add(itemPath.ToString(), modifiedItem);
items.Insert(i, modifiedItem);
}
}
}