public async Task <DistributionResponse> SaveAsync(Distribution distribution)
{
try
{
/*
* Notice here we have to check if the dataset ID is valid before adding the distribution, to avoid errors.
* You can create a method into the DatasetService class to return the dataset and inject the service here if you prefer, but
* it doesn't matter given the API scope.
*/
var existingDataset = await _datasetRepository.FindByIdAsync(distribution.DatasetId);
if (existingDataset == null)
{
return(new DistributionResponse("Invalid dataset."));
}
await _distributionRepository.AddAsync(distribution);
// Send notification
await _notificationService.AddUserNotificationsAsync(existingDataset, existingDataset, existingDataset.Title + " - " + existingDataset.Publisher.Name, "Datasettet '" + existingDataset.Title + "' har lagt til en ny distribusjon.");
await _notificationService.AddPublisherNotificationsAsync(existingDataset, existingDataset, existingDataset.Title + " - " + existingDataset.Publisher.Name, "Datasettet ditt '" + existingDataset.Title + "' har lagt til en ny distribusjon.");
await _unitOfWork.CompleteAsync();
return(new DistributionResponse(distribution));
}
catch (Exception ex)
{
// Do some logging stuff
return(new DistributionResponse($"An error occurred when saving the distribution: {ex.Message}"));
}
}
// Add a distribution in a graph to the database
public async Task <List <Distribution> > AddDistribution(Graph g, int datasetId)
{
// Find the distribution subject uri
IUriNode dcatDistribution = g.CreateUriNode("dcat:Distribution");
String[] distributionUris = findSubjectUri(g, dcatDistribution).Split(",");
List <Distribution> distributions = new List <Distribution>();
foreach (String distributionUri in distributionUris)
{
Dictionary <string, string> attributes = getAttributesFromSubject(g, distributionUri);
//Parse file format
EFileFormat fileFormat = EFileFormat.annet;
String[] fileFormatString = attributes.GetValueOrDefault("format", "annet").Split(",");
try
{
fileFormat = (EFileFormat)Enum.Parse(typeof(EFileFormat), fileFormatString[0], true);
}
catch (Exception ex) { Console.WriteLine(ex.Message); }
// Add relevant attributes to a new distribution
Distribution distribution = new Distribution {
Title = (string)attributes.GetValueOrDefault("title", attributes.GetValueOrDefault("description", "")),
Uri = (string)attributes.GetValueOrDefault("accessURL", ""),
FileFormat = fileFormat,
DatasetId = datasetId
};
// Add the dataset to the distribution
await _distributionRepository.AddAsync(distribution);
await _unitOfWork.CompleteAsync();
distributions.Add(distribution);
}
return(distributions);
}