private async Task <T> GetDataInternal <T>(ObjectSerializer serializer, bool async, CancellationToken cancellationToken = default)
{
Argument.AssertNotNull(serializer, nameof(serializer));
if (Data != null)
{
return((T)Data);
}
else if (SystemEventExtensions.SystemEventDeserializers.TryGetValue(EventType, out Func <JsonElement, object> systemDeserializationFunction))
{
return((T)systemDeserializationFunction(SerializedData));
}
else
{
using (MemoryStream dataStream = SerializePayloadToStream(SerializedData, cancellationToken))
{
if (async)
{
return((T)await serializer.DeserializeAsync(dataStream, typeof(T), cancellationToken).ConfigureAwait(false));
}
else
{
return((T)serializer.Deserialize(dataStream, typeof(T), cancellationToken));
}
}
}
}
private async Task <T> GetDataInternal <T>(ObjectSerializer serializer, bool async, CancellationToken cancellationToken = default)
{
Argument.AssertNotNull(serializer, nameof(serializer));
if (Data != null)
{
return((T)Data);
}
else if (SerializedData.ValueKind != JsonValueKind.Null && SerializedData.ValueKind != JsonValueKind.Undefined)
{
// Try to deserialize to system event
if (SystemEventTypeMappings.SystemEventDeserializers.TryGetValue(Type, out Func <JsonElement, object> systemDeserializationFunction))
{
return((T)systemDeserializationFunction(SerializedData));
}
else
{
using (MemoryStream dataStream = SerializePayloadToStream(SerializedData, cancellationToken))
{
if (async)
{
return((T)await serializer.DeserializeAsync(dataStream, typeof(T), cancellationToken).ConfigureAwait(false));
}
else
{
return((T)serializer.Deserialize(dataStream, typeof(T), cancellationToken));
}
}
}
}
else // Both Data and SerializedData are null
{
return(default);
#pragma warning disable CS1572 // Not all parameters will be used depending on feature flags
/// <summary>
/// Deserialize a SearchSuggestion and its model.
/// </summary>
/// <param name="element">A JSON element.</param>
/// <param name="serializer">
/// Optional serializer that can be used to customize the serialization
/// of strongly typed models.
/// </param>
/// <param name="options">JSON serializer options.</param>
/// <param name="async">Whether to execute sync or async.</param>
/// <param name="cancellationToken">
/// Optional <see cref="CancellationToken"/> to propagate notifications
/// that the operation should be canceled.
/// </param>
/// <returns>Deserialized SearchSuggestion.</returns>
internal static async Task <SearchSuggestion <T> > DeserializeAsync(
JsonElement element,
#if EXPERIMENTAL_SERIALIZER
ObjectSerializer serializer,
#endif
JsonSerializerOptions options,
bool async,
CancellationToken cancellationToken)
#pragma warning restore CS1572
{
Debug.Assert(options != null);
SearchSuggestion <T> suggestion = new SearchSuggestion <T>();
foreach (JsonProperty prop in element.EnumerateObject())
{
if (prop.NameEquals(Constants.SearchTextKeyJson.EncodedUtf8Bytes))
{
suggestion.Text = prop.Value.GetString();
break; // We only have one non-model property
}
}
// Deserialize the model
#if EXPERIMENTAL_SERIALIZER
if (serializer != null)
{
using Stream stream = element.ToStream();
T document = async ?
(T)await serializer.DeserializeAsync(stream, typeof(T)).ConfigureAwait(false) :
(T)serializer.Deserialize(stream, typeof(T));
suggestion.Document = document;
}
else
{
#endif
T document;
if (async)
{
using Stream stream = element.ToStream();
document = await JsonSerializer.DeserializeAsync <T>(stream, options, cancellationToken).ConfigureAwait(false);
}
else
{
document = JsonSerializer.Deserialize <T>(element.GetRawText(), options);
}
suggestion.Document = document;
#if EXPERIMENTAL_SERIALIZER
}
#endif
return(suggestion);
}
/// <summary>
/// Reads the request using the provided <see cref="ObjectSerializer"/>.
/// </summary>
/// <typeparam name="T">The target type of the JSON value.</typeparam>
/// <param name="request">The request to be read.</param>
/// <param name="serializer">The <see cref="ObjectSerializer"/> to use for the deserialization.</param>
/// <param name="cancellationToken">A token that may be used to cancel the read operation.</param>
/// <returns>A <see cref="ValueTask{T}"/> representing the asynchronous operation.</returns>
public static ValueTask <T?> ReadFromJsonAsync <T>(this HttpRequestData request, ObjectSerializer serializer, CancellationToken cancellationToken = default)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (serializer is null)
{
throw new ArgumentNullException(nameof(serializer));
}
ValueTask <object?> result = serializer.DeserializeAsync(request.Body, typeof(T), cancellationToken);
private async Task <ConversionResult> GetConversionResultFromDeserialization(byte[] bytes, Type type)
{
try
{
await using (var stream = new MemoryStream(bytes))
{
var deserializedObject = await _serializer.DeserializeAsync(stream, type, CancellationToken.None);
return(ConversionResult.Success(deserializedObject));
}
}
catch (Exception ex)
{
return(ConversionResult.Failed(ex));
}
}
private async ValueTask <T> ToObjectInternalAsync <T>(
ObjectSerializer serializer,
bool async,
CancellationToken cancellationToken)
{
Argument.AssertNotNull(serializer, nameof(serializer));
if (async)
{
return((T)await serializer.DeserializeAsync(
ToStream(),
typeof(T),
cancellationToken)
.ConfigureAwait(false));
}
else
{
return((T)serializer.Deserialize(ToStream(), typeof(T), cancellationToken));
}
}
/// <summary> /// Converts the <see cref="BinaryData"/> to the specified type using /// the provided <see cref="ObjectSerializer"/>. /// </summary> /// <typeparam name="T">The type that the data should be /// converted to.</typeparam> /// <param name="data">The <see cref="BinaryData"/> instance to convert.</param> /// <param name="serializer">The serializer to use /// when deserializing the data.</param> /// <param name="cancellationToken">The <see cref="CancellationToken"/> to use during deserialization.</param> ///<returns>The data converted to the specified type.</returns> public static async ValueTask <T?> ToObjectAsync <T>(this BinaryData data, ObjectSerializer serializer, CancellationToken cancellationToken = default) => (T?)await serializer.DeserializeAsync(data.ToStream(), typeof(T), cancellationToken).ConfigureAwait(false);
private async Task <EventGridEvent[]> DeserializeEventGridEventsInternal(string requestContent, bool async, CancellationToken cancellationToken = default)
{
List <EventGridEventInternal> egInternalEvents = new List <EventGridEventInternal>();
List <EventGridEvent> egEvents = new List <EventGridEvent>();
// Deserialize raw JSON string into separate events, deserialize event envelope properties
JsonDocument requestDocument = await ParseJsonToDocument(requestContent, async, cancellationToken).ConfigureAwait(false);
foreach (JsonElement property in requestDocument.RootElement.EnumerateArray())
{
egInternalEvents.Add(EventGridEventInternal.DeserializeEventGridEventInternal(property));
}
// Deserialize 'Data' property from JsonElement for each event
foreach (EventGridEventInternal egEventInternal in egInternalEvents)
{
JsonElement dataElement = egEventInternal.Data;
object egEventData = null;
// Reserialize JsonElement to stream
MemoryStream dataStream = SerializePayloadToStream(dataElement, cancellationToken);
// First, let's attempt to find the mapping for the event type in the custom event mapping.
if (_customEventTypeMappings.TryGetValue(egEventInternal.EventType, out Type typeOfEventData))
{
if (!TryGetPrimitiveFromJsonElement(dataElement, out egEventData))
{
if (async)
{
egEventData = await _dataSerializer.DeserializeAsync(dataStream, typeOfEventData, cancellationToken).ConfigureAwait(false);
}
else
{
egEventData = _dataSerializer.Deserialize(dataStream, typeOfEventData, cancellationToken);
}
}
}
// If a custom mapping doesn't exist, let's attempt to find the mapping for the deserialization function in the system event type mapping.
else if (SystemEventTypeMappings.SystemEventDeserializers.TryGetValue(egEventInternal.EventType, out Func <JsonElement, object> systemDeserializationFunction))
{
egEventData = systemDeserializationFunction(dataElement);
}
else
{
// If event data is not a primitive/string, return as BinaryData
if (!TryGetPrimitiveFromJsonElement(dataElement, out egEventData))
{
egEventData = BinaryData.FromStream(dataStream);
}
}
egEvents.Add(new EventGridEvent(
egEventInternal.Subject,
egEventData,
egEventInternal.EventType,
egEventInternal.DataVersion)
{
Id = egEventInternal.Id,
EventTime = egEventInternal.EventTime
});
}
return(egEvents.ToArray());
}
