private IDictionary CreateNewDictionary(JsonReader reader, JsonDictionaryContract contract, out bool createdFromNonDefaultCreator)
        {
            if (contract.IsReadOnlyOrFixedSize)
            {
                createdFromNonDefaultCreator = true;
                return contract.CreateTemporaryDictionary();
            }
            if (contract.DefaultCreator != null && (!contract.DefaultCreatorNonPublic || Serializer._constructorHandling == ConstructorHandling.AllowNonPublicDefaultConstructor))
            {
                var dictionary = contract.DefaultCreator();

                if (contract.ShouldCreateWrapper)
                    dictionary = contract.CreateWrapper(dictionary);

                createdFromNonDefaultCreator = false;
                return (IDictionary)dictionary;
            }
            if (contract.HasParametrizedCreator)
            {
                createdFromNonDefaultCreator = true;
                return contract.CreateTemporaryDictionary();
            }
            if (!contract.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, contract.UnderlyingType));

            throw JsonSerializationException.Create(reader, "Unable to find a default constructor to use for type {0}.".FormatWith(CultureInfo.InvariantCulture, contract.UnderlyingType));
        }
Beispiel #2
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        private void SerializeDictionary(JsonWriter writer, IDictionary values, JsonDictionaryContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
        {
            var wrappedDictionary    = values as IWrappedDictionary;
            var underlyingDictionary = wrappedDictionary != null ? wrappedDictionary.UnderlyingDictionary : values;

            OnSerializing(writer, contract, underlyingDictionary);
            _serializeStack.Add(underlyingDictionary);

            WriteObjectStart(writer, underlyingDictionary, contract, member, collectionContract, containerProperty);

            if (contract.ItemContract == null)
            {
                contract.ItemContract = Serializer._contractResolver.ResolveContract(contract.DictionaryValueType ?? typeof(object));
            }

            if (contract.KeyContract == null)
            {
                contract.KeyContract = Serializer._contractResolver.ResolveContract(contract.DictionaryKeyType ?? typeof(object));
            }

            var initialDepth = writer.Top;

            foreach (DictionaryEntry entry in values)
            {
                bool escape;
                var  propertyName = GetPropertyName(writer, entry.Key, contract.KeyContract, out escape);

                propertyName = (contract.PropertyNameResolver != null)
                    ? contract.PropertyNameResolver(propertyName)
                    : propertyName;

                try
                {
                    var value         = entry.Value;
                    var valueContract = contract.FinalItemContract ?? GetContractSafe(value);

                    if (ShouldWriteReference(value, null, valueContract, contract, member))
                    {
                        writer.WritePropertyName(propertyName, escape);
                        WriteReference(writer, value);
                    }
                    else
                    {
                        if (!CheckForCircularReference(writer, value, null, valueContract, contract, member))
                        {
                            continue;
                        }

                        writer.WritePropertyName(propertyName, escape);

                        SerializeValue(writer, value, valueContract, null, contract, member);
                    }
                }
                catch (Exception ex)
                {
                    if (IsErrorHandled(underlyingDictionary, contract, propertyName, null, writer.ContainerPath, ex))
                    {
                        HandleError(writer, initialDepth);
                    }
                    else
                    {
                        throw;
                    }
                }
            }

            writer.WriteEndObject();

            _serializeStack.RemoveAt(_serializeStack.Count - 1);

            OnSerialized(writer, contract, underlyingDictionary);
        }
        private object PopulateDictionary(IDictionary dictionary, JsonReader reader, JsonDictionaryContract contract, JsonProperty containerProperty, string id)
        {
            var wrappedDictionary = dictionary as IWrappedDictionary;
            var underlyingDictionary = wrappedDictionary != null ? wrappedDictionary.UnderlyingDictionary : dictionary;

            if (id != null)
                AddReference(reader, id, underlyingDictionary);

            OnDeserializing(reader, contract, underlyingDictionary);

            var initialDepth = reader.Depth;

            if (contract.KeyContract == null)
                contract.KeyContract = GetContractSafe(contract.DictionaryKeyType);

            if (contract.ItemContract == null)
                contract.ItemContract = GetContractSafe(contract.DictionaryValueType);

            var dictionaryValueConverter = contract.ItemConverter ?? GetConverter(contract.ItemContract, null, contract, containerProperty);
            var keyTypeCode = (contract.KeyContract is JsonPrimitiveContract) ? ((JsonPrimitiveContract)contract.KeyContract).TypeCode : PrimitiveTypeCode.Empty;

            var finished = false;
            do
            {
                switch (reader.TokenType)
                {
                    case JsonToken.PropertyName:
                        var keyValue = reader.Value;
                        if (CheckPropertyName(reader, keyValue.ToString()))
                            continue;

                        try
                        {
                            try
                            {
                                DateParseHandling dateParseHandling;
                                switch (keyTypeCode)
                                {
                                    case PrimitiveTypeCode.DateTime:
                                    case PrimitiveTypeCode.DateTimeNullable:
                                        dateParseHandling = DateParseHandling.DateTime;
                                        break;
                                    case PrimitiveTypeCode.DateTimeOffset:
                                    case PrimitiveTypeCode.DateTimeOffsetNullable:
                                        dateParseHandling = DateParseHandling.DateTimeOffset;
                                        break;
                                    default:
                                        dateParseHandling = DateParseHandling.None;
                                        break;
                                }

                                // this is for correctly reading ISO and MS formatted dictionary keys
                                object dt;
                                if (dateParseHandling != DateParseHandling.None && DateTimeUtils.TryParseDateTime(keyValue.ToString(), dateParseHandling, reader.DateTimeZoneHandling, reader.DateFormatString, reader.Culture, out dt))
                                    keyValue = dt;
                                else
                                    keyValue = EnsureType(reader, keyValue, CultureInfo.InvariantCulture, contract.KeyContract, contract.DictionaryKeyType);
                            }
                            catch (Exception ex)
                            {
                                throw JsonSerializationException.Create(reader, "Could not convert string '{0}' to dictionary key type '{1}'. Create a TypeConverter to convert from the string to the key type object.".FormatWith(CultureInfo.InvariantCulture, reader.Value, contract.DictionaryKeyType), ex);
                            }

                            if (!ReadForType(reader, contract.ItemContract, dictionaryValueConverter != null))
                                throw JsonSerializationException.Create(reader, "Unexpected end when deserializing object.");

                            object itemValue;
                            if (dictionaryValueConverter != null && dictionaryValueConverter.CanRead)
                                itemValue = DeserializeConvertable(dictionaryValueConverter, reader, contract.DictionaryValueType, null);
                            else
                                itemValue = CreateValueInternal(reader, contract.DictionaryValueType, contract.ItemContract, null, contract, containerProperty, null);

                            dictionary[keyValue] = itemValue;
                        }
                        catch (Exception ex)
                        {
                            if (IsErrorHandled(underlyingDictionary, contract, keyValue, reader as IJsonLineInfo, reader.Path, ex))
                                HandleError(reader, true, initialDepth);
                            else
                                throw;
                        }
                        break;
                    case JsonToken.Comment:
                        break;
                    case JsonToken.EndObject:
                        finished = true;
                        break;
                    default:
                        throw JsonSerializationException.Create(reader, "Unexpected token when deserializing object: " + reader.TokenType);
                }
            } while (!finished && reader.Read());

            if (!finished)
                ThrowUnexpectedEndException(reader, contract, underlyingDictionary, "Unexpected end when deserializing object.");

            OnDeserialized(reader, contract, underlyingDictionary);
            return underlyingDictionary;
        }
        private void SerializeDictionary(JsonWriter writer, IDictionary values, JsonDictionaryContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
        {
            var wrappedDictionary = values as IWrappedDictionary;
            var underlyingDictionary = wrappedDictionary != null ? wrappedDictionary.UnderlyingDictionary : values;

            OnSerializing(writer, contract, underlyingDictionary);
            _serializeStack.Add(underlyingDictionary);

            WriteObjectStart(writer, underlyingDictionary, contract, member, collectionContract, containerProperty);

            if (contract.ItemContract == null)
                contract.ItemContract = Serializer._contractResolver.ResolveContract(contract.DictionaryValueType ?? typeof(object));

            if (contract.KeyContract == null)
                contract.KeyContract = Serializer._contractResolver.ResolveContract(contract.DictionaryKeyType ?? typeof(object));

            var initialDepth = writer.Top;

            foreach (DictionaryEntry entry in values)
            {
                bool escape;
                var propertyName = GetPropertyName(writer, entry.Key, contract.KeyContract, out escape);

                propertyName = (contract.PropertyNameResolver != null)
                    ? contract.PropertyNameResolver(propertyName)
                    : propertyName;

                try
                {
                    var value = entry.Value;
                    var valueContract = contract.FinalItemContract ?? GetContractSafe(value);

                    if (ShouldWriteReference(value, null, valueContract, contract, member))
                    {
                        writer.WritePropertyName(propertyName, escape);
                        WriteReference(writer, value);
                    }
                    else
                    {
                        if (!CheckForCircularReference(writer, value, null, valueContract, contract, member))
                            continue;

                        writer.WritePropertyName(propertyName, escape);

                        SerializeValue(writer, value, valueContract, null, contract, member);
                    }
                }
                catch (Exception ex)
                {
                    if (IsErrorHandled(underlyingDictionary, contract, propertyName, null, writer.ContainerPath, ex))
                        HandleError(writer, initialDepth);
                    else
                        throw;
                }
            }

            writer.WriteEndObject();

            _serializeStack.RemoveAt(_serializeStack.Count - 1);

            OnSerialized(writer, contract, underlyingDictionary);
        }