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Agniva De SarkerandGitHub
aac77cbd38
We use the same name for hit/miss/invalidation metrics. The downside is that now we have conflated a full cache purge and a single cache key invalidation into a single label, but the advantage is that it's easier to monitor the usage of a single cache. And moreover, duplicating the same string across multiple places increases the chances of making a mistake. Centralizing the cache name only at instantiation simplifies the code. After this, we would be ready to use Redis. https://mattermost.atlassian.net/browse/MM-57193 ```release-note NONE ```
82 lines
2.5 KiB
Go
82 lines
2.5 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package localcachelayer
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import (
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"bytes"
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"github.com/mattermost/mattermost/server/public/model"
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"github.com/mattermost/mattermost/server/v8/channels/store"
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)
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const (
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LatestKey = "latest"
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)
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type LocalCacheTermsOfServiceStore struct {
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store.TermsOfServiceStore
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rootStore *LocalCacheStore
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}
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func (s *LocalCacheTermsOfServiceStore) handleClusterInvalidateTermsOfService(msg *model.ClusterMessage) {
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if bytes.Equal(msg.Data, clearCacheMessageData) {
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s.rootStore.termsOfServiceCache.Purge()
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} else {
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s.rootStore.termsOfServiceCache.Remove(string(msg.Data))
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}
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}
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func (s LocalCacheTermsOfServiceStore) ClearCaches() {
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s.rootStore.doClearCacheCluster(s.rootStore.termsOfServiceCache)
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if s.rootStore.metrics != nil {
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s.rootStore.metrics.IncrementMemCacheInvalidationCounter(s.rootStore.termsOfServiceCache.Name())
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}
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}
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func (s LocalCacheTermsOfServiceStore) Save(termsOfService *model.TermsOfService) (*model.TermsOfService, error) {
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tos, err := s.TermsOfServiceStore.Save(termsOfService)
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if err == nil {
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s.rootStore.doStandardAddToCache(s.rootStore.termsOfServiceCache, tos.Id, tos)
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s.rootStore.doInvalidateCacheCluster(s.rootStore.termsOfServiceCache, LatestKey, nil)
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}
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return tos, err
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}
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func (s LocalCacheTermsOfServiceStore) GetLatest(allowFromCache bool) (*model.TermsOfService, error) {
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if allowFromCache {
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var cacheItem *model.TermsOfService
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if err := s.rootStore.doStandardReadCache(s.rootStore.termsOfServiceCache, LatestKey, &cacheItem); err == nil {
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return cacheItem, nil
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}
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}
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termsOfService, err := s.TermsOfServiceStore.GetLatest(allowFromCache)
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if allowFromCache && err == nil {
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s.rootStore.doStandardAddToCache(s.rootStore.termsOfServiceCache, termsOfService.Id, termsOfService)
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s.rootStore.doStandardAddToCache(s.rootStore.termsOfServiceCache, LatestKey, termsOfService)
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}
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return termsOfService, err
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}
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func (s LocalCacheTermsOfServiceStore) Get(id string, allowFromCache bool) (*model.TermsOfService, error) {
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if allowFromCache {
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var cacheItem *model.TermsOfService
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if err := s.rootStore.doStandardReadCache(s.rootStore.termsOfServiceCache, id, &cacheItem); err == nil {
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return cacheItem, nil
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}
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}
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termsOfService, err := s.TermsOfServiceStore.Get(id, allowFromCache)
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if allowFromCache && err == nil {
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s.rootStore.doStandardAddToCache(s.rootStore.termsOfServiceCache, termsOfService.Id, termsOfService)
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}
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return termsOfService, err
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}
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