public async Task <bool> FetchSegment(FetchOptions fetchOptions)
{
var success = false;
while (true)
{
var changeNumber = _segmentCache.GetChangeNumber(Name);
try
{
var response = await _segmentChangeFetcher.Fetch(Name, changeNumber, fetchOptions);
if (response == null)
{
break;
}
if (changeNumber >= response.till)
{
success = true;
break;
}
if (response.added.Count() > 0 || response.removed.Count() > 0)
{
_segmentCache.AddToSegment(Name, response.added);
_segmentCache.RemoveFromSegment(Name, response.removed);
if (_log.IsDebugEnabled)
{
if (response.added.Count() > 0)
{
_log.Debug($"Segment {Name} - Added : {string.Join(" - ", response.added)}");
}
if (response.removed.Count() > 0)
{
_log.Debug($"Segment {Name} - Removed : {string.Join(" - ", response.removed)}");
}
}
}
_segmentCache.SetChangeNumber(Name, response.till);
}
catch (Exception e)
{
_log.Error("Exception caught refreshing segment", e);
}
finally
{
if (_log.IsDebugEnabled)
{
_log.Debug($"segment {Name} fetch before: {changeNumber}, after: {_segmentCache.GetChangeNumber(Name)}");
}
}
}
return(success);
}
public async void RefreshSegment()
{
while (true)
{
var changeNumber = segmentCache.GetChangeNumber(name);
try
{
var response = await segmentChangeFetcher.Fetch(name, changeNumber);
if (response == null)
{
break;
}
if (changeNumber >= response.till)
{
gates.SegmentIsReady(name);
break;
}
if (response.added.Count() > 0 || response.removed.Count() > 0)
{
segmentCache.AddToSegment(name, response.added);
segmentCache.RemoveFromSegment(name, response.removed);
if (response.added.Count() > 0)
{
if (Log.IsDebugEnabled)
{
Log.Debug(string.Format("Segment {0} - Added : {1}", name, string.Join(" - ", response.added)));
}
}
if (response.removed.Count() > 0)
{
if (Log.IsDebugEnabled)
{
Log.Debug(string.Format("Segment {0} - Removed : {1}", name, string.Join(" - ", response.removed)));
}
}
}
segmentCache.SetChangeNumber(name, response.till);
}
catch (Exception e)
{
Log.Error("Exception caught refreshing segment", e);
}
finally
{
if (Log.IsDebugEnabled)
{
Log.Debug(string.Format("segment {0} fetch before: {1}, after: {2}", name, changeNumber, segmentCache.GetChangeNumber(name)));
}
}
}
}