Beispiel #1
0
        private void SerializeDynamic(JsonWriter writer, IDynamicMetaObjectProvider value, JsonDynamicContract 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];

                // only write non-dynamic properties that have an explicit attribute
                if (property.HasMemberAttribute)
                {
                    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;
                        }
                    }
                }
            }

            foreach (string memberName in value.GetDynamicMemberNames())
            {
                object memberValue;
                if (contract.TryGetMember(value, memberName, out memberValue))
                {
                    try
                    {
                        JsonContract valueContract = GetContractSafe(memberValue);

                        if (!ShouldWriteDynamicProperty(memberValue))
                        {
                            continue;
                        }

                        if (CheckForCircularReference(writer, memberValue, null, valueContract, contract, member))
                        {
                            string resolvedPropertyName = (contract.PropertyNameResolver != null)
                                              ? contract.PropertyNameResolver(memberName)
                                              : memberName;

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

            writer.WriteEndObject();

            _serializeStack.RemoveAt(_serializeStack.Count - 1);
            OnSerialized(writer, contract, value);
        }
    private object CreateDynamic(JsonReader reader, JsonDynamicContract contract, JsonProperty member, string id)
    {
      IDynamicMetaObjectProvider newObject;

      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));

      if (contract.DefaultCreator != null &&
        (!contract.DefaultCreatorNonPublic || Serializer._constructorHandling == ConstructorHandling.AllowNonPublicDefaultConstructor))
        newObject = (IDynamicMetaObjectProvider) contract.DefaultCreator();
      else
        throw JsonSerializationException.Create(reader, "Unable to find a default constructor to use for type {0}.".FormatWith(CultureInfo.InvariantCulture, contract.UnderlyingType));

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

      OnDeserializing(reader, contract, newObject);

      int initialDepth = reader.Depth;

      bool finished = false;
      do
      {
        switch (reader.TokenType)
        {
          case JsonToken.PropertyName:
            string memberName = reader.Value.ToString();

            try
            {
              if (!reader.Read())
                throw JsonSerializationException.Create(reader, "Unexpected end when setting {0}'s value.".FormatWith(CultureInfo.InvariantCulture, memberName));

              // first attempt to find a settable property, otherwise fall back to a dynamic set without type
              JsonProperty property = contract.Properties.GetClosestMatchProperty(memberName);

              if (property != null && property.Writable && !property.Ignored)
              {
                if (property.PropertyContract == null)
                  property.PropertyContract = GetContractSafe(property.PropertyType);

                JsonConverter propertyConverter = GetConverter(property.PropertyContract, property.MemberConverter, null, null);

                if (!SetPropertyValue(property, propertyConverter, null, member, reader, newObject))
                  reader.Skip();
              }
              else
              {
                Type t = (JsonReader.IsPrimitiveToken(reader.TokenType)) ? reader.ValueType : typeof (IDynamicMetaObjectProvider);

                JsonContract dynamicMemberContract = GetContractSafe(t);
                JsonConverter dynamicMemberConverter = GetConverter(dynamicMemberContract, null, null, member);

                object value;
                if (dynamicMemberConverter != null && dynamicMemberConverter.CanRead)
                  value = DeserializeConvertable(dynamicMemberConverter, reader, t, null);
                else
                  value = CreateValueInternal(reader, t, dynamicMemberContract, null, null, member, null);

                contract.TrySetMember(newObject, memberName, value);
              }
            }
            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;
          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.");

      OnDeserialized(reader, contract, newObject);

      return newObject;
    }
    private void SerializeDynamic(JsonWriter writer, IDynamicMetaObjectProvider value, JsonDynamicContract 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];

        // only write non-dynamic properties that have an explicit attribute
        if (property.HasMemberAttribute)
        {
          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;
          }
        }
      }

      foreach (string memberName in value.GetDynamicMemberNames())
      {
        object memberValue;
        if (contract.TryGetMember(value, memberName, out memberValue))
        {
          try
          {
            JsonContract valueContract = GetContractSafe(memberValue);

            if (!ShouldWriteDynamicProperty(memberValue))
              continue;

            if (CheckForCircularReference(writer, memberValue, null, valueContract, contract, member))
            {
              string resolvedPropertyName = (contract.PropertyNameResolver != null)
                                              ? contract.PropertyNameResolver(memberName)
                                              : memberName;

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

      writer.WriteEndObject();

      _serializeStack.RemoveAt(_serializeStack.Count - 1);
      OnSerialized(writer, contract, value);
    }