コード例 #1
0
        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();
            }
        }
コード例 #2
0
        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;
        }