public NewtonsoftNdjsonWriterFactory(IHttpResponseStreamWriterFactory httpResponseStreamWriterFactory, IOptions <MvcNewtonsoftJsonOptions> options, ArrayPool <char> innerJsonArrayPool)
{
_httpResponseStreamWriterFactory = httpResponseStreamWriterFactory ?? throw new ArgumentNullException(nameof(httpResponseStreamWriterFactory));
_options = options?.Value ?? throw new ArgumentNullException(nameof(options));
if (innerJsonArrayPool == null)
{
throw new ArgumentNullException(nameof(innerJsonArrayPool));
}
_jsonArrayPool = new NewtonsoftNdjsonArrayPool(innerJsonArrayPool);
}
public NewtonsoftNdjsonWriter(TextWriter textResponseStreamWriter, JsonSerializerSettings jsonSerializerSettings, NewtonsoftNdjsonArrayPool jsonArrayPool)
{
_textResponseStreamWriter = textResponseStreamWriter;
_jsonResponseStreamWriter = new JsonTextWriter(textResponseStreamWriter)
{
ArrayPool = jsonArrayPool,
CloseOutput = false,
AutoCompleteOnClose = false
};
_jsonSerializer = JsonSerializer.Create(jsonSerializerSettings);
}
public async Task SerializeAsync(object?asyncEnumerable, TextWriter textResponseStreamWriter, JsonSerializerSettings jsonSerializerSettings, NewtonsoftNdjsonArrayPool jsonArrayPool, CancellationToken cancellationToken)
{
IAsyncEnumerable <T>?values = asyncEnumerable as IAsyncEnumerable <T>;
if (values is null)
{
throw new NotSupportedException($"The only type supported by {nameof(NewtonsoftNdjsonOutputFormatter)} is IAsyncEnumerable<T>");
}
using INdjsonWriter <T> ndjsonTextWriter = new NewtonsoftNdjsonWriter <T>(textResponseStreamWriter, jsonSerializerSettings, jsonArrayPool);
await foreach (T value in values.WithCancellation(cancellationToken))
{
await ndjsonTextWriter.WriteAsync(value, cancellationToken);
}
}
