private string GetConvertDataResult(ConvertDataRequest convertRequest, ITemplateProvider templateProvider, CancellationToken cancellationToken)
{
var converter = _converterMap.GetValueOrDefault(convertRequest.InputDataType);
if (converter == null)
{
// This case should never happen.
_logger.LogInformation("Invalid input data type for conversion.");
throw new RequestNotValidException("Invalid input data type for conversion.");
}
try
{
return(converter.Convert(convertRequest.InputData, convertRequest.RootTemplate, templateProvider, cancellationToken));
}
catch (FhirConverterException convertException)
{
if (convertException.FhirConverterErrorCode == FhirConverterErrorCode.TimeoutError)
{
_logger.LogError(convertException.InnerException, "Convert data operation timed out.");
throw new ConvertDataTimeoutException(Resources.ConvertDataOperationTimeout, convertException.InnerException);
}
_logger.LogInformation(convertException, "Convert data failed.");
throw new ConvertDataFailedException(string.Format(Resources.ConvertDataFailed, convertException.Message), convertException);
}
catch (Exception ex)
{
_logger.LogError(ex, "Unhandled exception: convert data process failed.");
throw new ConvertDataUnhandledException(string.Format(Resources.ConvertDataFailed, ex.Message), ex);
}
}
public async Task <ConvertDataResponse> Process(ConvertDataRequest convertRequest, CancellationToken cancellationToken)
{
var templateCollection = await _convertDataTemplateProvider.GetTemplateCollectionAsync(convertRequest, cancellationToken);
var result = GetConvertDataResult(convertRequest, new Hl7v2TemplateProvider(templateCollection), cancellationToken);
return(new ConvertDataResponse(result));
}
public async Task <ConvertDataResponse> Process(ConvertDataRequest convertRequest, CancellationToken cancellationToken)
{
var templateCollection = await _convertDataTemplateProvider.GetTemplateCollectionAsync(convertRequest, cancellationToken);
ITemplateProvider templateProvider = GetTemplateProvider(convertRequest.InputDataType, templateCollection);
if (templateProvider == null)
{
// This case should never happen.
_logger.LogError("Invalid input data type for conversion.");
throw new RequestNotValidException("Invalid input data type for conversion.");
}
var result = GetConvertDataResult(convertRequest, templateProvider, cancellationToken);
return(new ConvertDataResponse(result));
}
public async Task <IActionResult> ConvertData([FromBody] Parameters inputParams)
{
CheckIfConvertDataIsEnabled();
ValidateParams(inputParams);
string inputData = ReadStringParameter(inputParams, ConvertDataProperties.InputData);
string templateCollectionReference = ReadStringParameter(inputParams, ConvertDataProperties.TemplateCollectionReference);
string rootTemplate = ReadStringParameter(inputParams, ConvertDataProperties.RootTemplate);
Liquid.Converter.Models.DataType inputDataType = ReadEnumParameter <Liquid.Converter.Models.DataType>(inputParams, ConvertDataProperties.InputDataType);
// Validate template reference format.
if (!ImageInfo.IsValidImageReference(templateCollectionReference))
{
_logger.LogInformation("Templates collection reference format is invalid.");
throw new RequestNotValidException(string.Format(Resources.InvalidTemplateCollectionReference, templateCollectionReference));
}
// Validate if template has been configured.
bool isDefaultTemplateReference = ImageInfo.IsDefaultTemplateImageReference(templateCollectionReference);
string registryServer = ExtractRegistryServer(templateCollectionReference);
if (isDefaultTemplateReference)
{
CheckInputDataTypeAndDefaultTemplateImageReferenceConsistent(inputDataType, templateCollectionReference);
}
else
{
CheckIfCustomTemplateIsConfigured(registryServer, templateCollectionReference);
}
var convertDataRequest = new ConvertDataRequest(inputData, inputDataType, registryServer, isDefaultTemplateReference, templateCollectionReference, rootTemplate);
ConvertDataResponse response = await _mediator.Send(convertDataRequest, cancellationToken : default);
return(new ContentResult
{
Content = response.Resource,
ContentType = "text/plain",
});
}
/// <summary>
/// Fetch template collection from container registry or built-in archive.
/// </summary>
/// <param name="request">The convert data request which contains template reference.</param>
/// <param name="cancellationToken">Cancellation token to cancel the fetch operation.</param>
/// <returns>Template collection.</returns>
public async Task <List <Dictionary <string, Template> > > GetTemplateCollectionAsync(ConvertDataRequest request, CancellationToken cancellationToken)
{
// We have embedded a default template collection in the templatemanagement package.
// If the template collection is the default reference, we don't need to retrieve token.
var accessToken = string.Empty;
if (!request.IsDefaultTemplateReference)
{
_logger.LogInformation("Using a custom template collection for data conversion.");
async Task <string> TokenEntryFactory(ICacheEntry entry)
{
var token = await _containerRegistryTokenProvider.GetTokenAsync(request.RegistryServer, cancellationToken);
entry.Size = token.Length;
entry.AbsoluteExpiration = GetTokenAbsoluteExpiration(token);
return(token);
}
accessToken = await _cache.GetOrCreateAsync(GetCacheKey(request.RegistryServer), TokenEntryFactory);
}
else
{
_logger.LogInformation("Using the default template collection for data conversion.");
}
try
{
var provider = _templateCollectionProviderFactory.CreateTemplateCollectionProvider(request.TemplateCollectionReference, accessToken);
return(await provider.GetTemplateCollectionAsync(cancellationToken));
}
catch (ContainerRegistryAuthenticationException authEx)
{
// Remove token from cache when authentication failed.
_cache.Remove(GetCacheKey(request.RegistryServer));
_logger.LogError(authEx, "Failed to access container registry.");
throw new ContainerRegistryNotAuthorizedException(string.Format(Resources.ContainerRegistryNotAuthorized, request.RegistryServer), authEx);
}
catch (ImageFetchException fetchEx)
{
_logger.LogError(fetchEx, "Failed to fetch template image.");
throw new FetchTemplateCollectionFailedException(string.Format(Resources.FetchTemplateCollectionFailed, fetchEx.Message), fetchEx);
}
catch (TemplateManagementException templateEx)
{
_logger.LogError(templateEx, "Template collection is invalid.");
throw new TemplateCollectionErrorException(string.Format(Resources.FetchTemplateCollectionFailed, templateEx.Message), templateEx);
}
catch (Exception unhandledEx)
{
_logger.LogError(unhandledEx, "Unhandled exception: failed to get template collection.");
throw new FetchTemplateCollectionFailedException(string.Format(Resources.FetchTemplateCollectionFailed, unhandledEx.Message), unhandledEx);
}
}
