/// <summary>
/// Constructor for given json content and optional JsonSerializer Settings.
/// </summary>
/// <param name="patchDocument">json MergePatchDocument content.</param>
/// <param name="settings">Serializer settings to use. NullValueHandling will always be NullValueHandling.Include though.</param>
/// <exception cref="ArgumentException">if <paramref name="patchDocument" /> is null or whitespace.</exception>
/// <exception cref="InvalidJsonMergePatchDocumentException">
/// if <paramref name="patchDocument" /> anything other than a
/// parsable json object.
/// </exception>
public JsonMergePatchDocument(string patchDocument, JsonSerializerSettings settings = null)
{
if (string.IsNullOrWhiteSpace(patchDocument))
{
throw new ArgumentException("Value cannot be null or whitespace.", nameof(patchDocument));
}
_serializerSettings = settings ?? new JsonSerializerSettings();
var serializer = JsonSerializer.Create(_serializerSettings);
_internalValidator = new InternalValidator <TResource>();
// Ensure that the serializer does not ignore null values to comply with RFC 7386
serializer.NullValueHandling = NullValueHandling.Include;
if (!patchDocument.Trim().StartsWith("{"))
{
throw new InvalidJsonMergePatchDocumentException(ErrorMessages.DocumentRootMustBeObject);
}
try
{
var patchObject = JObject.Parse(patchDocument);
_internalDocument = new PatchDocument(patchObject, typeof(TResource),
serializer);
}
catch (JsonReaderException ex)
{
throw new InvalidJsonMergePatchDocumentException(ErrorMessages.DocumentNotParseable, ex);
}
}
/// <summary>
/// Constructor for given json content and optional JsonSerializer Settings.
/// </summary>
/// <param name="reader">JsonReader.</param>
/// <param name="serializer">settings</param>
/// <exception cref="InvalidJsonMergePatchDocumentException">
/// if <paramref name="reader" /> points to anything other than a
/// parsable json object.
/// </exception>
public JsonMergePatchDocument(JsonReader reader, JsonSerializer serializer)
{
_internalValidator = new InternalValidator <TResource>();
if (reader.TokenType != JsonToken.StartObject)
{
throw new InvalidJsonMergePatchDocumentException(ErrorMessages.DocumentRootMustBeObject);
}
try
{
var patchObject = JObject.Load(reader);
_internalDocument = new PatchDocument(patchObject, typeof(TResource),
serializer);
}
catch (JsonReaderException ex)
{
throw new InvalidJsonMergePatchDocumentException(ErrorMessages.DocumentNotParseable, ex);
}
}
