private void SerializeObject(JsonWriter writer, object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { OnSerializing(writer, contract, value); _serializeStack.Add(value); WriteObjectStart(writer, value, contract, member, collectionContract, containerProperty); int initialDepth = writer.Top; for (int index = 0; index < contract.Properties.Count; index++) { JsonProperty property = contract.Properties[index]; try { object memberValue; JsonContract memberContract; if (!CalculatePropertyValues(writer, value, contract, member, property, out memberContract, out memberValue)) { continue; } property.WritePropertyName(writer); SerializeValue(writer, memberValue, memberContract, property, contract, member); } catch (Exception ex) { if (IsErrorHandled(value, contract, property.PropertyName, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth); } else { throw; } } } if (contract.ExtensionDataGetter != null) { IEnumerable <KeyValuePair <object, object> > extensionData = contract.ExtensionDataGetter(value); if (extensionData != null) { foreach (KeyValuePair <object, object> e in extensionData) { JsonContract keyContract = GetContractSafe(e.Key); JsonContract valueContract = GetContractSafe(e.Value); bool escape; string propertyName = GetPropertyName(writer, e.Key, keyContract, out escape); if (ShouldWriteReference(e.Value, null, valueContract, contract, member)) { writer.WritePropertyName(propertyName); WriteReference(writer, e.Value); } else { if (!CheckForCircularReference(writer, e.Value, null, valueContract, contract, member)) { continue; } writer.WritePropertyName(propertyName); SerializeValue(writer, e.Value, valueContract, null, contract, member); } } } } writer.WriteEndObject(); _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, value); }
private void SerializeObject(JsonWriter writer, object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { OnSerializing(writer, contract, value); _serializeStack.Add(value); WriteObjectStart(writer, value, contract, member, collectionContract, containerProperty); int initialDepth = writer.Top; for (int index = 0; index < contract.Properties.Count; index++) { JsonProperty property = contract.Properties[index]; try { object memberValue; JsonContract memberContract; if (!CalculatePropertyValues(writer, value, contract, member, property, out memberContract, out memberValue)) continue; property.WritePropertyName(writer); SerializeValue(writer, memberValue, memberContract, property, contract, member); } catch (Exception ex) { if (IsErrorHandled(value, contract, property.PropertyName, null, writer.ContainerPath, ex)) HandleError(writer, initialDepth); else throw; } } if (contract.ExtensionDataGetter != null) { IEnumerable<KeyValuePair<object, object>> extensionData = contract.ExtensionDataGetter(value); if (extensionData != null) { foreach (KeyValuePair<object, object> e in extensionData) { JsonContract keyContract = GetContractSafe(e.Key); JsonContract valueContract = GetContractSafe(e.Value); bool escape; string propertyName = GetPropertyName(writer, e.Key, keyContract, out escape); if (ShouldWriteReference(e.Value, null, valueContract, contract, member)) { writer.WritePropertyName(propertyName); WriteReference(writer, e.Value); } else { if (!CheckForCircularReference(writer, e.Value, null, valueContract, contract, member)) continue; writer.WritePropertyName(propertyName); SerializeValue(writer, e.Value, valueContract, null, contract, member); } } } } writer.WriteEndObject(); _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, value); }
private void EndObject(object newObject, JsonReader reader, JsonObjectContract contract, int initialDepth, Dictionary<JsonProperty, PropertyPresence> propertiesPresence) { if (propertiesPresence != null) { foreach (KeyValuePair<JsonProperty, PropertyPresence> propertyPresence in propertiesPresence) { JsonProperty property = propertyPresence.Key; PropertyPresence presence = propertyPresence.Value; if (presence == PropertyPresence.None || presence == PropertyPresence.Null) { try { Required resolvedRequired = property._required ?? contract.ItemRequired ?? Required.Default; switch (presence) { case PropertyPresence.None: if (resolvedRequired == Required.AllowNull || resolvedRequired == Required.Always) throw JsonSerializationException.Create(reader, "Required property '{0}' not found in JSON.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName)); if (property.PropertyContract == null) property.PropertyContract = GetContractSafe(property.PropertyType); if (HasFlag(property.DefaultValueHandling.GetValueOrDefault(Serializer._defaultValueHandling), DefaultValueHandling.Populate) && property.Writable && !property.Ignored) property.ValueProvider.SetValue(newObject, EnsureType(reader, property.GetResolvedDefaultValue(), CultureInfo.InvariantCulture, property.PropertyContract, property.PropertyType)); break; case PropertyPresence.Null: if (resolvedRequired == Required.Always) throw JsonSerializationException.Create(reader, "Required property '{0}' expects a value but got null.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName)); break; } } catch (Exception ex) { if (IsErrorHandled(newObject, contract, property.PropertyName, reader as IJsonLineInfo, reader.Path, ex)) HandleError(reader, true, initialDepth); else throw; } } } } }
private void GenerateObjectSchema(Type type, JsonObjectContract contract) { CurrentSchema.Properties = new Dictionary<string, JsonSchema>(); foreach (JsonProperty property in contract.Properties) { if (!property.Ignored) { bool optional = property.NullValueHandling == NullValueHandling.Ignore || HasFlag(property.DefaultValueHandling.GetValueOrDefault(), DefaultValueHandling.Ignore) || property.ShouldSerialize != null || property.GetIsSpecified != null; JsonSchema propertySchema = GenerateInternal(property.PropertyType, property.Required, !optional); if (property.DefaultValue != null) propertySchema.Default = JToken.FromObject(property.DefaultValue); CurrentSchema.Properties.Add(property.PropertyName, propertySchema); } } if (type.IsSealed()) CurrentSchema.AllowAdditionalProperties = false; }
private void SetExtensionData(JsonObjectContract contract, JsonProperty member, JsonReader reader, string memberName, object o) { if (contract.ExtensionDataSetter != null) { try { object value = CreateValueInternal(reader, null, null, null, contract, member, null); 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(); } }
private object PopulateObject(object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, string id) { OnDeserializing(reader, contract, newObject); // only need to keep a track of properies presence if they are required or a value should be defaulted if missing Dictionary<JsonProperty, PropertyPresence> propertiesPresence = (contract.HasRequiredOrDefaultValueProperties || HasFlag(Serializer._defaultValueHandling, DefaultValueHandling.Populate)) ? contract.Properties.ToDictionary(m => m, m => PropertyPresence.None) : null; if (id != null) AddReference(reader, id, newObject); int initialDepth = reader.Depth; bool finished = false; do { switch (reader.TokenType) { case JsonToken.PropertyName: { string memberName = reader.Value.ToString(); if (CheckPropertyName(reader, memberName)) continue; try { // attempt exact case match first // then try match ignoring case JsonProperty property = contract.Properties.GetClosestMatchProperty(memberName); if (property == null) { if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Verbose) TraceWriter.Trace(TraceLevel.Verbose, JsonPosition.FormatMessage(reader as IJsonLineInfo, reader.Path, "Could not find member '{0}' on {1}".FormatWith(CultureInfo.InvariantCulture, memberName, contract.UnderlyingType)), null); if (Serializer._missingMemberHandling == MissingMemberHandling.Error) throw JsonSerializationException.Create(reader, "Could not find member '{0}' on object of type '{1}'".FormatWith(CultureInfo.InvariantCulture, memberName, contract.UnderlyingType.Name)); if (!reader.Read()) break; SetExtensionData(contract, member, reader, memberName, newObject); continue; } if (property.PropertyContract == null) property.PropertyContract = GetContractSafe(property.PropertyType); JsonConverter propertyConverter = GetConverter(property.PropertyContract, property.MemberConverter, contract, member); if (!ReadForType(reader, property.PropertyContract, propertyConverter != null)) throw JsonSerializationException.Create(reader, "Unexpected end when setting {0}'s value.".FormatWith(CultureInfo.InvariantCulture, memberName)); SetPropertyPresence(reader, property, propertiesPresence); // set extension data if property is ignored or readonly if (!SetPropertyValue(property, propertyConverter, contract, member, reader, newObject)) SetExtensionData(contract, member, reader, memberName, newObject); } catch (Exception ex) { if (IsErrorHandled(newObject, contract, memberName, reader as IJsonLineInfo, reader.Path, ex)) HandleError(reader, true, initialDepth); else throw; } break; } case JsonToken.EndObject: finished = true; break; case JsonToken.Comment: // ignore break; default: throw JsonSerializationException.Create(reader, "Unexpected token when deserializing object: " + reader.TokenType); } } while (!finished && reader.Read()); if (!finished) ThrowUnexpectedEndException(reader, contract, newObject, "Unexpected end when deserializing object."); EndObject(newObject, reader, contract, initialDepth, propertiesPresence); OnDeserialized(reader, contract, newObject); return newObject; }
public object CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, string id, out bool createdFromNonDefaultCreator) { object newObject = null; if (objectContract.OverrideCreator != null) { if (objectContract.CreatorParameters.Count > 0) { createdFromNonDefaultCreator = true; return CreateObjectUsingCreatorWithParameters(reader, objectContract, containerMember, objectContract.OverrideCreator, id); } newObject = objectContract.OverrideCreator(new object[0]); } else if (objectContract.DefaultCreator != null && (!objectContract.DefaultCreatorNonPublic || Serializer._constructorHandling == ConstructorHandling.AllowNonPublicDefaultConstructor || objectContract.ParametrizedCreator == null)) { // use the default constructor if it is... // public // non-public and the user has change constructor handling settings // non-public and there is no other creator newObject = objectContract.DefaultCreator(); } else if (objectContract.ParametrizedCreator != null) { createdFromNonDefaultCreator = true; return CreateObjectUsingCreatorWithParameters(reader, objectContract, containerMember, objectContract.ParametrizedCreator, id); } if (newObject == null) { if (!objectContract.IsInstantiable) throw JsonSerializationException.Create(reader, "Could not create an instance of type {0}. Type is an interface or abstract class and cannot be instantiated.".FormatWith(CultureInfo.InvariantCulture, objectContract.UnderlyingType)); throw JsonSerializationException.Create(reader, "Unable to find a constructor to use for type {0}. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute.".FormatWith(CultureInfo.InvariantCulture, objectContract.UnderlyingType)); } createdFromNonDefaultCreator = false; return newObject; }
private IDictionary<JsonProperty, object> ResolvePropertyAndCreatorValues(JsonObjectContract contract, JsonProperty containerProperty, JsonReader reader, Type objectType, out IDictionary<string, object> extensionData) { extensionData = (contract.ExtensionDataSetter != null) ? new Dictionary<string, object>() : null; IDictionary<JsonProperty, object> propertyValues = new Dictionary<JsonProperty, object>(); bool exit = false; do { switch (reader.TokenType) { case JsonToken.PropertyName: string memberName = reader.Value.ToString(); // attempt exact case match first // then try match ignoring case JsonProperty property = contract.CreatorParameters.GetClosestMatchProperty(memberName) ?? contract.Properties.GetClosestMatchProperty(memberName); if (property != null) { if (property.PropertyContract == null) property.PropertyContract = GetContractSafe(property.PropertyType); JsonConverter propertyConverter = GetConverter(property.PropertyContract, property.MemberConverter, contract, containerProperty); if (!ReadForType(reader, property.PropertyContract, propertyConverter != null)) throw JsonSerializationException.Create(reader, "Unexpected end when setting {0}'s value.".FormatWith(CultureInfo.InvariantCulture, memberName)); if (!property.Ignored) { if (property.PropertyContract == null) property.PropertyContract = GetContractSafe(property.PropertyType); object propertyValue; if (propertyConverter != null && propertyConverter.CanRead) propertyValue = DeserializeConvertable(propertyConverter, reader, property.PropertyType, null); else propertyValue = CreateValueInternal(reader, property.PropertyType, property.PropertyContract, property, contract, containerProperty, null); propertyValues[property] = propertyValue; continue; } } else { if (!reader.Read()) throw JsonSerializationException.Create(reader, "Unexpected end when setting {0}'s value.".FormatWith(CultureInfo.InvariantCulture, memberName)); if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Verbose) TraceWriter.Trace(TraceLevel.Verbose, JsonPosition.FormatMessage(reader as IJsonLineInfo, reader.Path, "Could not find member '{0}' on {1}.".FormatWith(CultureInfo.InvariantCulture, memberName, contract.UnderlyingType)), null); if (Serializer._missingMemberHandling == MissingMemberHandling.Error) throw JsonSerializationException.Create(reader, "Could not find member '{0}' on object of type '{1}'".FormatWith(CultureInfo.InvariantCulture, memberName, objectType.Name)); } if (extensionData != null) { object value = CreateValueInternal(reader, null, null, null, contract, containerProperty, null); extensionData[memberName] = value; } else { reader.Skip(); } break; case JsonToken.Comment: break; case JsonToken.EndObject: exit = true; break; default: throw JsonSerializationException.Create(reader, "Unexpected token when deserializing object: " + reader.TokenType); } } while (!exit && reader.Read()); return propertyValues; }
private object CreateObjectUsingCreatorWithParameters(JsonReader reader, JsonObjectContract contract, JsonProperty containerProperty, ObjectConstructor<object> creator, string id) { ValidationUtils.ArgumentNotNull(creator, "creator"); // only need to keep a track of properies presence if they are required or a value should be defaulted if missing Dictionary<JsonProperty, PropertyPresence> propertiesPresence = (contract.HasRequiredOrDefaultValueProperties || HasFlag(Serializer._defaultValueHandling, DefaultValueHandling.Populate)) ? contract.Properties.ToDictionary(m => m, m => PropertyPresence.None) : null; 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); } IDictionary<string, object> extensionData; IDictionary<JsonProperty, object> propertyValues = ResolvePropertyAndCreatorValues(contract, containerProperty, reader, objectType, out extensionData); object[] creatorParameterValues = new object[contract.CreatorParameters.Count]; IDictionary<JsonProperty, object> remainingPropertyValues = new Dictionary<JsonProperty, object>(); foreach (KeyValuePair<JsonProperty, object> propertyValue in propertyValues) { JsonProperty property = propertyValue.Key; JsonProperty matchingCreatorParameter; if (contract.CreatorParameters.Contains(property)) { matchingCreatorParameter = property; } else { // check to see if a parameter with the same name as the underlying property name exists and match to that matchingCreatorParameter = contract.CreatorParameters.ForgivingCaseSensitiveFind(p => p.PropertyName, property.UnderlyingName); } if (matchingCreatorParameter != null) { int i = contract.CreatorParameters.IndexOf(matchingCreatorParameter); creatorParameterValues[i] = propertyValue.Value; } else { remainingPropertyValues.Add(propertyValue); } if (propertiesPresence != null) { // map from creator property to normal property JsonProperty presenceProperty = propertiesPresence.Keys.FirstOrDefault(p => p.PropertyName == property.PropertyName); if (presenceProperty != null) propertiesPresence[presenceProperty] = (propertyValue.Value == null) ? PropertyPresence.Null : PropertyPresence.Value; } } 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 (KeyValuePair<JsonProperty, object> remainingPropertyValue in remainingPropertyValues) { JsonProperty property = remainingPropertyValue.Key; object value = remainingPropertyValue.Value; if (ShouldSetPropertyValue(property, value)) { property.ValueProvider.SetValue(createdObject, value); } 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); } } } } } if (extensionData != null) { foreach (KeyValuePair<string, object> e in extensionData) { contract.ExtensionDataSetter(createdObject, e.Key, e.Value); } } EndObject(createdObject, reader, contract, reader.Depth, propertiesPresence); OnDeserialized(reader, contract, createdObject); return createdObject; }