コード例 #1
0
    private object PopulateObject(object newObject, JsonReader reader, JsonObjectContract contract, JsonProperty member, string id)
    {
      contract.InvokeOnDeserializing(newObject, Serializer.Context);

      // 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)
        Serializer.ReferenceResolver.AddReference(this, id, newObject);

      int initialDepth = reader.Depth;

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

              try
              {
                // attempt exact case match first
                // then try match ignoring case
                JsonProperty property = contract.Properties.GetClosestMatchProperty(memberName);

                if (property == 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));

                  reader.Skip();
                  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);

                SetPropertyValue(property, propertyConverter, contract, member, reader, newObject);
              }
              catch (Exception ex)
              {
                if (IsErrorHandled(newObject, contract, memberName, reader.Path, ex))
                  HandleError(reader, true, initialDepth);
                else
                  throw;
              }
            }
            break;
          case JsonToken.EndObject:
            {
              EndObject(newObject, reader, contract, initialDepth, propertiesPresence);

              contract.InvokeOnDeserialized(newObject, Serializer.Context);
              return newObject;
            }
          case JsonToken.Comment:
            // ignore
            break;
          default:
            throw JsonSerializationException.Create(reader, "Unexpected token when deserializing object: " + reader.TokenType);
        }
      } while (reader.Read());

      throw JsonSerializationException.Create(reader, "Unexpected end when deserializing object.");
    }
コード例 #2
0
    private object CreateObjectFromNonDefaultConstructor(JsonReader reader, JsonObjectContract contract, JsonProperty containerProperty, ConstructorInfo constructorInfo, string id)
    {
      ValidationUtils.ArgumentNotNull(constructorInfo, "constructorInfo");

      Type objectType = contract.UnderlyingType;

      IDictionary<JsonProperty, object> propertyValues = ResolvePropertyAndConstructorValues(contract, containerProperty, reader, objectType);

      IDictionary<ParameterInfo, object> constructorParameters = constructorInfo.GetParameters().ToDictionary(p => p, p => (object) null);
      IDictionary<JsonProperty, object> remainingPropertyValues = new Dictionary<JsonProperty, object>();

      foreach (KeyValuePair<JsonProperty, object> propertyValue in propertyValues)
      {
        ParameterInfo matchingConstructorParameter = constructorParameters.ForgivingCaseSensitiveFind(kv => kv.Key.Name, propertyValue.Key.UnderlyingName).Key;
        if (matchingConstructorParameter != null)
          constructorParameters[matchingConstructorParameter] = propertyValue.Value;
        else
          remainingPropertyValues.Add(propertyValue);
      }

      object createdObject = constructorInfo.Invoke(constructorParameters.Values.ToArray());

      if (id != null)
        Serializer.ReferenceResolver.AddReference(this, id, createdObject);

      contract.InvokeOnDeserializing(createdObject, Serializer.Context);

      // 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(remainingPropertyValue.Key, remainingPropertyValue.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 jsonDictionaryContract = (JsonDictionaryContract)propertyContract;

            object createdObjectDictionary = property.ValueProvider.GetValue(createdObject);
            if (createdObjectDictionary != null)
            {
              IWrappedDictionary createdObjectDictionaryWrapper = jsonDictionaryContract.CreateWrapper(createdObjectDictionary);
              IWrappedDictionary newValues = jsonDictionaryContract.CreateWrapper(value);

              foreach (DictionaryEntry newValue in newValues)
              {
                createdObjectDictionaryWrapper.Add(newValue.Key, newValue.Value);
              }
            }
          }
        }
      }

      contract.InvokeOnDeserialized(createdObject, Serializer.Context);
      return createdObject;
    }