private void SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
{
object underlyingList = values is IWrappedCollection wrappedCollection ? wrappedCollection.UnderlyingCollection : values;
OnSerializing(writer, contract, underlyingList);
_serializeStack.Add(underlyingList);
bool hasWrittenMetadataObject = WriteStartArray(writer, underlyingList, contract, member, collectionContract, containerProperty);
writer.WriteStartArray();
int initialDepth = writer.Top;
int index = 0;
// note that an error in the IEnumerable won't be caught
foreach (object value in values)
{
try
{
JsonContract valueContract = contract.FinalItemContract ?? GetContractSafe(value);
if (ShouldWriteReference(value, null, valueContract, contract, member))
{
WriteReference(writer, value);
}
else
{
if (CheckForCircularReference(writer, value, null, valueContract, contract, member))
{
SerializeValue(writer, value, valueContract, null, contract, member);
}
}
}
catch (Exception ex)
{
if (IsErrorHandled(underlyingList, contract, index, null, writer.ContainerPath, ex))
{
HandleError(writer, initialDepth);
}
else
{
throw;
}
}
finally
{
index++;
}
}
writer.WriteEndArray();
if (hasWrittenMetadataObject)
{
writer.WriteEndObject();
}
_serializeStack.RemoveAt(_serializeStack.Count - 1);
OnSerialized(writer, contract, underlyingList);
}
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
{
if (!CalculatePropertyValues(writer, value, contract, member, property, out JsonContract memberContract, out object 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())
{
if (contract.TryGetMember(value, memberName, out object 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 bool CalculatePropertyValues(JsonWriter writer, object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, out JsonContract memberContract, out object memberValue)
{
if (!property.Ignored && property.Readable && ShouldSerialize(writer, property, value) && IsSpecified(writer, property, value))
{
if (property.PropertyContract == null)
{
property.PropertyContract = Serializer._contractResolver.ResolveContract(property.PropertyType);
}
memberValue = property.ValueProvider.GetValue(value);
memberContract = property.PropertyContract.IsSealed ? property.PropertyContract : GetContractSafe(memberValue);
if (ShouldWriteProperty(memberValue, contract as JsonObjectContract, property))
{
if (ShouldWriteReference(memberValue, property, memberContract, contract, member))
{
property.WritePropertyName(writer);
WriteReference(writer, memberValue);
return(false);
}
if (!CheckForCircularReference(writer, memberValue, property, memberContract, contract, member))
{
return(false);
}
if (memberValue == null)
{
JsonObjectContract objectContract = contract as JsonObjectContract;
Required resolvedRequired = property._required ?? objectContract?.ItemRequired ?? Required.Default;
if (resolvedRequired == Required.Always)
{
throw JsonSerializationException.Create(null, writer.ContainerPath, "Cannot write a null value for property '{0}'. Property requires a value.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName), null);
}
if (resolvedRequired == Required.DisallowNull)
{
throw JsonSerializationException.Create(null, writer.ContainerPath, "Cannot write a null value for property '{0}'. Property requires a non-null value.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName), null);
}
}
return(true);
}
}
memberContract = null;
memberValue = null;
return(false);
}
private void SerializeConvertable(JsonWriter writer, JsonConverter converter, object value, JsonContract contract, JsonContainerContract collectionContract, JsonProperty containerProperty)
{
if (ShouldWriteReference(value, null, contract, collectionContract, containerProperty))
{
WriteReference(writer, value);
}
else
{
if (!CheckForCircularReference(writer, value, null, contract, collectionContract, containerProperty))
{
return;
}
_serializeStack.Add(value);
if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Info)
{
TraceWriter.Trace(TraceLevel.Info, JsonPosition.FormatMessage(null, writer.Path, "Started serializing {0} with converter {1}.".FormatWith(CultureInfo.InvariantCulture, value.GetType(), converter.GetType())), null);
}
converter.WriteJson(writer, value, GetInternalSerializer());
if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Info)
{
TraceWriter.Trace(TraceLevel.Info, JsonPosition.FormatMessage(null, writer.Path, "Finished serializing {0} with converter {1}.".FormatWith(CultureInfo.InvariantCulture, value.GetType(), converter.GetType())), null);
}
_serializeStack.RemoveAt(_serializeStack.Count - 1);
}
}
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
{
if (!CalculatePropertyValues(writer, value, contract, member, property, out JsonContract memberContract, out object 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;
}
}
}
IEnumerable <KeyValuePair <object, object> > extensionData = contract.ExtensionDataGetter?.Invoke(value);
if (extensionData != null)
{
foreach (KeyValuePair <object, object> e in extensionData)
{
JsonContract keyContract = GetContractSafe(e.Key);
JsonContract valueContract = GetContractSafe(e.Value);
string propertyName = GetPropertyName(writer, e.Key, keyContract, out _);
propertyName = (contract.ExtensionDataNameResolver != null)
? contract.ExtensionDataNameResolver(propertyName)
: propertyName;
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 bool CheckForCircularReference(JsonWriter writer, object value, JsonProperty property, JsonContract contract, JsonContainerContract containerContract, JsonProperty containerProperty)
{
if (value == null || contract.ContractType == JsonContractType.Primitive || contract.ContractType == JsonContractType.String)
{
return(true);
}
ReferenceLoopHandling?referenceLoopHandling = null;
if (property != null)
{
referenceLoopHandling = property.ReferenceLoopHandling;
}
if (referenceLoopHandling == null && containerProperty != null)
{
referenceLoopHandling = containerProperty.ItemReferenceLoopHandling;
}
if (referenceLoopHandling == null && containerContract != null)
{
referenceLoopHandling = containerContract.ItemReferenceLoopHandling;
}
bool exists = (Serializer._equalityComparer != null)
? _serializeStack.Contains(value, Serializer._equalityComparer)
: _serializeStack.Contains(value);
if (exists)
{
string message = "Self referencing loop detected";
if (property != null)
{
message += " for property '{0}'".FormatWith(CultureInfo.InvariantCulture, property.PropertyName);
}
message += " with type '{0}'.".FormatWith(CultureInfo.InvariantCulture, value.GetType());
switch (referenceLoopHandling.GetValueOrDefault(Serializer._referenceLoopHandling))
{
case ReferenceLoopHandling.Error:
throw JsonSerializationException.Create(null, writer.ContainerPath, message, null);
case ReferenceLoopHandling.Ignore:
if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Verbose)
{
TraceWriter.Trace(TraceLevel.Verbose, JsonPosition.FormatMessage(null, writer.Path, message + ". Skipping serializing self referenced value."), null);
}
return(false);
case ReferenceLoopHandling.Serialize:
if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Verbose)
{
TraceWriter.Trace(TraceLevel.Verbose, JsonPosition.FormatMessage(null, writer.Path, message + ". Serializing self referenced value."), null);
}
return(true);
}
}
return(true);
}
private void SerializeValue(JsonWriter writer, object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
{
if (value == null)
{
writer.WriteNull();
return;
}
JsonConverter converter =
member?.Converter ??
containerProperty?.ItemConverter ??
containerContract?.ItemConverter ??
valueContract.Converter ??
Serializer.GetMatchingConverter(valueContract.UnderlyingType) ??
valueContract.InternalConverter;
if (converter != null && converter.CanWrite)
{
SerializeConvertable(writer, converter, value, valueContract, containerContract, containerProperty);
return;
}
switch (valueContract.ContractType)
{
case JsonContractType.Object:
SerializeObject(writer, value, (JsonObjectContract)valueContract, member, containerContract, containerProperty);
break;
case JsonContractType.Array:
JsonArrayContract arrayContract = (JsonArrayContract)valueContract;
if (!arrayContract.IsMultidimensionalArray)
{
SerializeList(writer, (IEnumerable)value, arrayContract, member, containerContract, containerProperty);
}
else
{
SerializeMultidimensionalArray(writer, (Array)value, arrayContract, member, containerContract, containerProperty);
}
break;
case JsonContractType.Primitive:
SerializePrimitive(writer, value, (JsonPrimitiveContract)valueContract, member, containerContract, containerProperty);
break;
case JsonContractType.String:
SerializeString(writer, value, (JsonStringContract)valueContract);
break;
case JsonContractType.Dictionary:
JsonDictionaryContract dictionaryContract = (JsonDictionaryContract)valueContract;
SerializeDictionary(writer, (value is IDictionary dictionary) ? dictionary : dictionaryContract.CreateWrapper(value), dictionaryContract, member, containerContract, containerProperty);
break;
#if HAVE_DYNAMIC
case JsonContractType.Dynamic:
SerializeDynamic(writer, (IDynamicMetaObjectProvider)value, (JsonDynamicContract)valueContract, member, containerContract, containerProperty);
break;
#endif
#if HAVE_BINARY_SERIALIZATION
case JsonContractType.Serializable:
SerializeISerializable(writer, (ISerializable)value, (JsonISerializableContract)valueContract, member, containerContract, containerProperty);
break;
#endif
case JsonContractType.Linq:
((JToken)value).WriteTo(writer, Serializer.Converters.ToArray());
break;
}
}
private string GetPropertyName(JsonWriter writer, object name, JsonContract contract, out bool escape)
{
if (contract.ContractType == JsonContractType.Primitive)
{
JsonPrimitiveContract primitiveContract = (JsonPrimitiveContract)contract;
switch (primitiveContract.TypeCode)
{
case PrimitiveTypeCode.DateTime:
case PrimitiveTypeCode.DateTimeNullable:
{
DateTime dt = DateTimeUtils.EnsureDateTime((DateTime)name, writer.DateTimeZoneHandling);
escape = false;
StringWriter sw = new StringWriter(CultureInfo.InvariantCulture);
DateTimeUtils.WriteDateTimeString(sw, dt, writer.DateFormatHandling, writer.DateFormatString, writer.Culture);
return(sw.ToString());
}
#if HAVE_DATE_TIME_OFFSET
case PrimitiveTypeCode.DateTimeOffset:
case PrimitiveTypeCode.DateTimeOffsetNullable:
{
escape = false;
StringWriter sw = new StringWriter(CultureInfo.InvariantCulture);
DateTimeUtils.WriteDateTimeOffsetString(sw, (DateTimeOffset)name, writer.DateFormatHandling, writer.DateFormatString, writer.Culture);
return(sw.ToString());
}
#endif
case PrimitiveTypeCode.Double:
case PrimitiveTypeCode.DoubleNullable:
{
double d = (double)name;
escape = false;
return(d.ToString("R", CultureInfo.InvariantCulture));
}
case PrimitiveTypeCode.Single:
case PrimitiveTypeCode.SingleNullable:
{
float f = (float)name;
escape = false;
return(f.ToString("R", CultureInfo.InvariantCulture));
}
default:
{
escape = true;
if (primitiveContract.IsEnum && EnumUtils.TryToString(primitiveContract.NonNullableUnderlyingType, name, null, out string enumName))
{
return(enumName);
}
return(Convert.ToString(name, CultureInfo.InvariantCulture));
}
}
}
else if (TryConvertToString(name, name.GetType(), out string propertyName))
{
escape = true;
return(propertyName);
}
else
{
escape = true;
return(name.ToString());
}
}
private void SerializeDictionary(JsonWriter writer, IDictionary values, JsonDictionaryContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
{
object underlyingDictionary = values is IWrappedDictionary wrappedDictionary ? 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));
}
int initialDepth = writer.Top;
// Manual use of IDictionaryEnumerator instead of foreach to avoid DictionaryEntry box allocations.
IDictionaryEnumerator e = values.GetEnumerator();
try
{
while (e.MoveNext())
{
DictionaryEntry entry = e.Entry;
string propertyName = GetPropertyName(writer, entry.Key, contract.KeyContract, out bool escape);
propertyName = (contract.DictionaryKeyResolver != null)
? contract.DictionaryKeyResolver(propertyName)
: propertyName;
try
{
object value = entry.Value;
JsonContract 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;
}
}
}
}
finally
{
(e as IDisposable)?.Dispose();
}
writer.WriteEndObject();
_serializeStack.RemoveAt(_serializeStack.Count - 1);
OnSerialized(writer, contract, underlyingDictionary);
}
