private object CreateObjectUsingCreatorWithParameters(JsonReader reader, JsonObjectContract contract, JsonProperty containerProperty, ObjectConstructor<object> creator, string id)
{
ValidationUtils.ArgumentNotNull(creator, nameof(creator));
// only need to keep a track of properies presence if they are required or a value should be defaulted if missing
bool trackPresence = (contract.HasRequiredOrDefaultValueProperties || HasFlag(Serializer._defaultValueHandling, DefaultValueHandling.Populate));
Type objectType = contract.UnderlyingType;
if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Info)
{
string parameters = string.Join(", ", contract.CreatorParameters.Select(p => p.PropertyName).ToArray());
TraceWriter.Trace(TraceLevel.Info, JsonPosition.FormatMessage(reader as IJsonLineInfo, reader.Path, "Deserializing {0} using creator with parameters: {1}.".FormatWith(CultureInfo.InvariantCulture, contract.UnderlyingType, parameters)), null);
}
List<CreatorPropertyContext> propertyContexts = ResolvePropertyAndCreatorValues(contract, containerProperty, reader, objectType);
if (trackPresence)
{
foreach (JsonProperty property in contract.Properties)
{
if (propertyContexts.All(p => p.Property != property))
{
propertyContexts.Add(new CreatorPropertyContext
{
Property = property,
Name = property.PropertyName,
Presence = PropertyPresence.None
});
}
}
}
object[] creatorParameterValues = new object[contract.CreatorParameters.Count];
foreach (CreatorPropertyContext context in propertyContexts)
{
// set presence of read values
if (trackPresence)
{
if (context.Property != null && context.Presence == null)
{
object v = context.Value;
PropertyPresence propertyPresence;
if (v == null)
{
propertyPresence = PropertyPresence.Null;
}
else if (v is string)
{
propertyPresence = CoerceEmptyStringToNull(context.Property.PropertyType, context.Property.PropertyContract, (string)v)
? PropertyPresence.Null
: PropertyPresence.Value;
}
else
{
propertyPresence = PropertyPresence.Value;
}
context.Presence = propertyPresence;
}
}
JsonProperty constructorProperty = context.ConstructorProperty;
if (constructorProperty == null && context.Property != null)
{
constructorProperty = contract.CreatorParameters.ForgivingCaseSensitiveFind(p => p.PropertyName, context.Property.UnderlyingName);
}
if (constructorProperty != null && !constructorProperty.Ignored)
{
// handle giving default values to creator parameters
// this needs to happen before the call to creator
if (trackPresence)
{
if (context.Presence == PropertyPresence.None || context.Presence == PropertyPresence.Null)
{
if (constructorProperty.PropertyContract == null)
{
constructorProperty.PropertyContract = GetContractSafe(constructorProperty.PropertyType);
}
if (HasFlag(constructorProperty.DefaultValueHandling.GetValueOrDefault(Serializer._defaultValueHandling), DefaultValueHandling.Populate))
{
context.Value = EnsureType(
reader,
constructorProperty.GetResolvedDefaultValue(),
CultureInfo.InvariantCulture,
constructorProperty.PropertyContract,
constructorProperty.PropertyType);
}
}
}
int i = contract.CreatorParameters.IndexOf(constructorProperty);
creatorParameterValues[i] = context.Value;
context.Used = true;
}
}
object createdObject = creator(creatorParameterValues);
if (id != null)
{
AddReference(reader, id, createdObject);
}
OnDeserializing(reader, contract, createdObject);
// go through unused values and set the newly created object's properties
foreach (CreatorPropertyContext context in propertyContexts)
{
if (context.Used ||
context.Property == null ||
context.Property.Ignored ||
context.Presence == PropertyPresence.None)
{
continue;
}
JsonProperty property = context.Property;
object value = context.Value;
if (ShouldSetPropertyValue(property, value))
{
property.ValueProvider.SetValue(createdObject, value);
context.Used = true;
}
else if (!property.Writable && value != null)
{
// handle readonly collection/dictionary properties
JsonContract propertyContract = Serializer._contractResolver.ResolveContract(property.PropertyType);
if (propertyContract.ContractType == JsonContractType.Array)
{
JsonArrayContract propertyArrayContract = (JsonArrayContract)propertyContract;
object createdObjectCollection = property.ValueProvider.GetValue(createdObject);
if (createdObjectCollection != null)
{
IWrappedCollection createdObjectCollectionWrapper = propertyArrayContract.CreateWrapper(createdObjectCollection);
IWrappedCollection newValues = propertyArrayContract.CreateWrapper(value);
foreach (object newValue in newValues)
{
createdObjectCollectionWrapper.Add(newValue);
}
}
}
else if (propertyContract.ContractType == JsonContractType.Dictionary)
{
JsonDictionaryContract dictionaryContract = (JsonDictionaryContract)propertyContract;
object createdObjectDictionary = property.ValueProvider.GetValue(createdObject);
if (createdObjectDictionary != null)
{
IDictionary targetDictionary = (dictionaryContract.ShouldCreateWrapper) ? dictionaryContract.CreateWrapper(createdObjectDictionary) : (IDictionary)createdObjectDictionary;
IDictionary newValues = (dictionaryContract.ShouldCreateWrapper) ? dictionaryContract.CreateWrapper(value) : (IDictionary)value;
foreach (DictionaryEntry newValue in newValues)
{
targetDictionary.Add(newValue.Key, newValue.Value);
}
}
}
context.Used = true;
}
}
if (contract.ExtensionDataSetter != null)
{
foreach (CreatorPropertyContext propertyValue in propertyContexts)
{
if (!propertyValue.Used)
{
contract.ExtensionDataSetter(createdObject, propertyValue.Name, propertyValue.Value);
}
}
}
if (trackPresence)
{
foreach (CreatorPropertyContext context in propertyContexts)
{
if (context.Property == null)
{
continue;
}
EndProcessProperty(
createdObject,
reader,
contract,
reader.Depth,
context.Property,
context.Presence.GetValueOrDefault(),
!context.Used);
}
}
OnDeserialized(reader, contract, createdObject);
return createdObject;
}
private void SetExtensionData(JsonObjectContract contract, JsonProperty member, JsonReader reader, string memberName, object o)
{
if (contract.ExtensionDataSetter != null)
{
try
{
object value = ReadExtensionDataValue(contract, member, reader);
contract.ExtensionDataSetter(o, memberName, value);
}
catch (Exception ex)
{
throw JsonSerializationException.Create(reader, "Error setting value in extension data for type '{0}'.".FormatWith(CultureInfo.InvariantCulture, contract.UnderlyingType), ex);
}
}
else
{
reader.Skip();
}
}