private void NotifyLocked(IEnumerable <MediaCacheRefresher.JsonPayload> payloads, out bool anythingChanged)
{
anythingChanged = false;
// locks:
// see notes for content cache refresher
foreach (var payload in payloads)
{
_logger.LogDebug("Notified {ChangeTypes} for media {MediaId}", payload.ChangeTypes, payload.Id);
if (payload.ChangeTypes.HasType(TreeChangeTypes.RefreshAll))
{
using (var scope = _scopeProvider.CreateScope())
{
scope.ReadLock(Constants.Locks.MediaTree);
LoadMediaFromDatabaseLocked(false);
scope.Complete();
}
anythingChanged = true;
continue;
}
if (payload.ChangeTypes.HasType(TreeChangeTypes.Remove))
{
if (_mediaStore.ClearLocked(payload.Id))
{
anythingChanged = true;
}
continue;
}
if (payload.ChangeTypes.HasTypesNone(TreeChangeTypes.RefreshNode | TreeChangeTypes.RefreshBranch))
{
// ?!
continue;
}
// TODO: should we do some RV checks here? (later)
var capture = payload;
using (var scope = _scopeProvider.CreateScope())
{
scope.ReadLock(Constants.Locks.MediaTree);
if (capture.ChangeTypes.HasType(TreeChangeTypes.RefreshBranch))
{
// ?? should we do some RV check here?
// IMPORTANT GetbranchContentSources sorts kits by level and by sort order
var kits = _publishedContentService.GetBranchMediaSources(capture.Id);
_mediaStore.SetBranchLocked(capture.Id, kits);
}
else
{
// ?? should we do some RV check here?
var kit = _publishedContentService.GetMediaSource(capture.Id);
if (kit.IsEmpty)
{
_mediaStore.ClearLocked(capture.Id);
}
else
{
_mediaStore.SetLocked(kit);
}
}
scope.Complete();
}
// ?? cannot tell really because we're not doing RV checks
anythingChanged = true;
}
}
// Calling this method means we have a lock on the contentStore (i.e. GetScopedWriteLock)
private void NotifyLocked(IEnumerable <ContentCacheRefresher.JsonPayload> payloads, out bool draftChanged, out bool publishedChanged)
{
publishedChanged = false;
draftChanged = false;
// locks:
// content (and content types) are read-locked while reading content
// contentStore is wlocked (so readable, only no new views)
// and it can be wlocked by 1 thread only at a time
// contentStore is write-locked during changes - see note above, calls to this method are wrapped in contentStore.GetScopedWriteLock
foreach (var payload in payloads)
{
_logger.LogDebug("Notified {ChangeTypes} for content {ContentId}", payload.ChangeTypes, payload.Id);
if (payload.ChangeTypes.HasType(TreeChangeTypes.RefreshAll))
{
using (var scope = _scopeProvider.CreateScope())
{
scope.ReadLock(Constants.Locks.ContentTree);
LoadContentFromDatabaseLocked(false);
scope.Complete();
}
draftChanged = publishedChanged = true;
continue;
}
if (payload.ChangeTypes.HasType(TreeChangeTypes.Remove))
{
if (_contentStore.ClearLocked(payload.Id))
{
draftChanged = publishedChanged = true;
}
continue;
}
if (payload.ChangeTypes.HasTypesNone(TreeChangeTypes.RefreshNode | TreeChangeTypes.RefreshBranch))
{
// ?!
continue;
}
// TODO: should we do some RV check here? (later)
var capture = payload;
using (var scope = _scopeProvider.CreateScope())
{
scope.ReadLock(Constants.Locks.ContentTree);
if (capture.ChangeTypes.HasType(TreeChangeTypes.RefreshBranch))
{
// ?? should we do some RV check here?
// IMPORTANT GetbranchContentSources sorts kits by level and by sort order
var kits = _publishedContentService.GetBranchContentSources(capture.Id);
_contentStore.SetBranchLocked(capture.Id, kits);
}
else
{
// ?? should we do some RV check here?
var kit = _publishedContentService.GetContentSource(capture.Id);
if (kit.IsEmpty)
{
_contentStore.ClearLocked(capture.Id);
}
else
{
_contentStore.SetLocked(kit);
}
}
scope.Complete();
}
// ?? cannot tell really because we're not doing RV checks
draftChanged = publishedChanged = true;
}
}