Esempio n. 1
0
        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;
            }
        }
Esempio n. 2
0
        // 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;
            }
        }