public void Import(string feed)
{
Ensure.That(() => feed).IsNotNull();
FacebookImportLog entry = new FacebookImportLog
{
FacebookFeedId = feed,
StartDate = DateTime.UtcNow
};
DateTime? since = logRepository.GetFacebookImportDate(feed);
FacebookImportOptions options = new FacebookImportOptions
{
Feed = feed,
Log = entry,
Since = since
};
importerService.Import(options);
entry.Duration = DateTime.UtcNow - entry.StartDate;
logRepository.UpdateFacebookImportLog(entry);
}
internal IList<FacebookPost> FetchAll(string url, DateTime? since, FacebookImportLog importLog)
{
int queryCount = 0;
List<FacebookPost> posts = new List<FacebookPost>();
do
{
FacebookPostCollection response = Fetch(url);
posts.AddRange(response.Data);
queryCount++;
if (since.HasValue && response.Data.Any(p => p.UpdatedTime <= since.Value)) // prevent unnecessary over-querying.
{
posts.RemoveAll(p => p.UpdatedTime <= since.Value); // removed already-evaluated posts.
break;
}
if (response.Paging == null || response.Paging.Next == url) // sanity
{
break;
}
url = response.Paging.Next;
} while (url != null);
importLog.QueryCount = queryCount;
importLog.PostCount = posts.Count;
importLog.PostUpdated = posts.MaxOrDefault(p => (DateTime?)p.UpdatedTime);
return posts;
}