private async Task <List <object> > GetAsync(string resourceName, MessageNumberRange range)
{
var url = new Uri(new Uri(_host), relativeUri: Path.Combine("events", resourceName, $"{range.Start}-{range.End}"));
Console.WriteLine($"Getting events from {url}");
var message =
new HttpRequestMessage(
method: HttpMethod.Get,
requestUri: url);
var responseMessage = await _httpClientWrapper.SendAsync(message);
if (!responseMessage.IsSuccessStatusCode)
{
throw new Exception();
}
if (!responseMessage.IsSuccessStatusCode)
{
throw new EventApiRequestFailedException(url, statusCode: responseMessage.StatusCode);
}
if (responseMessage.Content == null)
{
return(new List <object>());
}
var content = await responseMessage.Content.ReadAsStringAsync();
return(MapJsonContentToObjects(content));
}
public async Task <IList <object> > GetEventsAfterAsync(string resourceName, MessageNumber lastMessageNumber)
{
Console.WriteLine($"GetEventsAfterAsync with Last message number: {lastMessageNumber}");
var allEvents = new List <object>();
List <object> retrievedEventsList;
MessageNumberRange numberRange;
if (lastMessageNumber == MessageNumber.NotSet)
{
numberRange = new MessageNumberRange(MessageNumber.New(0), _batchSize);
retrievedEventsList = await GetAsync(resourceName, numberRange);
allEvents.AddRange(retrievedEventsList);
}
else
{
var skippedBatches = lastMessageNumber.Value / _batchSize;
numberRange = new MessageNumberRange(MessageNumber.New(skippedBatches * _batchSize), _batchSize);
retrievedEventsList = await GetAsync(resourceName, numberRange);
var skippedBatchSize = lastMessageNumber.Value % _batchSize;
var eventsListStartingFromLastMessageNumber = retrievedEventsList.Skip(skippedBatchSize + 1).ToList();
allEvents.AddRange(eventsListStartingFromLastMessageNumber);
}
while (retrievedEventsList.Count == _batchSize)
{
numberRange = new MessageNumberRange(MessageNumber.New(numberRange.End.Value + 1), _batchSize);
retrievedEventsList = await GetAsync(resourceName, numberRange);
allEvents.AddRange(retrievedEventsList);
}
return(allEvents);
}
