public async Task <TItem> ReadItemAsync(string url)
{
if (!Uri.IsWellFormedUriString(url, UriKind.Absolute))
{
throw new ArgumentException(nameof(url));
}
var httpRequestMessage = new HttpRequestMessage(HttpMethod.Get, url);
var response = await _httpService.SendAsync(httpRequestMessage);
if (!response.IsSuccessStatusCode)
{
throw new FailedRequestException(response.StatusCode);
}
return(await _deserializer.DeserializeAsync <TItem>(response.Content));
}
public async Task <ICollectionPageData <TItem> > ReadPageAsync(string url)
{
if (!Uri.IsWellFormedUriString(url, UriKind.Absolute))
{
throw new ArgumentException(nameof(url));
}
var httpRequestMessage = new HttpRequestMessage(HttpMethod.Get, url);
var response = await _httpService.SendAsync(httpRequestMessage);
if (!response.IsSuccessStatusCode)
{
throw new FailedRequestException(response.StatusCode);
}
var items = await _deserializer.DeserializeAsync <ImmutableList <TItem> >(response.Content);
response.Headers.TryGetValues("Link", out var links);
return(new CollectionPageData <TItem>(items, links.FirstOrDefault()));
}
public async Task <FitsDocument> ReadAsync(Stream inputStream)
{
var pipeReader = PipeReader.Create(
inputStream,
new StreamPipeReaderOptions(
bufferSize: ChunkSize,
minimumReadSize: ChunkSize)) !;
var header = await headerDeserializer
.DeserializeAsync(pipeReader)
.ConfigureAwait(false);
var validatorTasks = new List <Task <ValidationResult> >();
foreach (var headerValidator in headerValidators)
{
validatorTasks.Add(headerValidator.ValidateAsync(header));
}
var validationResults = await Task.WhenAll(validatorTasks).ConfigureAwait(continueOnCapturedContext: false);
foreach (var validationResult in validationResults)
{
if (!validationResult.ValidationSuccessful)
{
throw new InvalidDataException($"Validation failed for the header of the fits file: {validationResult.ValidationFailureMessage}");
}
}
var content = await contentDeserializer
.DeserializeAsync(pipeReader, header)
.ConfigureAwait(false);
return(new FitsDocument(
header: header,
content: content));
}
static Task <T> DeserializeContentAsync <T>(IContentDeserializer deserializer, HttpContent content)
{
return(content == null
? Task.FromResult(default(T))
: deserializer.DeserializeAsync <T>(content));
}