public IEnumerator <T> GetEnumerator()
{
var entries = _atomfeed.Entries.ToArray();
if (!entries.Any())
{
yield break;
}
IEnumerable <AtomEntry> outStandingEntries;
if (_lastReadFeedItem.LastEntryReadId != Guid.Empty)
{
outStandingEntries = entries
.Reverse()
.SkipWhile(entry => ((Guid)entry.Id) != _lastReadFeedItem.LastEntryReadId)
.Skip(1);
}
else
{
outStandingEntries = entries.Reverse();
}
foreach (var entry in outStandingEntries)
{
using (var scope = _lastReadFeedItemDao.BeginTransaction())
{
_lastReadFeedItem.LastEntryReadId = entry.Id;
_lastReadFeedItemDao.Update(_lastReadFeedItem);
scope.Commit();
}
yield return((T)entry.Content.Item);
}
}
public ReferenceDataFeedReader(ILastReadFeedItemDAO lastReadFeedItemDao, AtomFeed atomfeed)
{
_lastReadFeedItemDao = lastReadFeedItemDao;
_atomfeed = atomfeed;
_lastReadFeedItem = _lastReadFeedItemDao.FindByFeedId(atomfeed.Id);
if (_lastReadFeedItem == null)
{
using (var scope = _lastReadFeedItemDao.BeginTransaction())
{
_lastReadFeedItem = _lastReadFeedItemDao.Add(new LastReadFeedItem(atomfeed.Id, Guid.Empty));
scope.Commit();
}
}
}
