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// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package store
import (
"context"
"github.com/mattermost/mattermost-server/einterfaces"
"github.com/mattermost/mattermost-server/model"
"github.com/mattermost/mattermost-server/utils"
)
const (
REACTION_CACHE_SIZE = 20000
REACTION_CACHE_SEC = 30 * 60
ROLE_CACHE_SIZE = 20000
ROLE_CACHE_SEC = 30 * 60
CLEAR_CACHE_MESSAGE_DATA = ""
)
type LocalCacheSupplier struct {
next LayeredStoreSupplier
reactionCache *utils.Cache
roleCache *utils.Cache
metrics einterfaces.MetricsInterface
cluster einterfaces.ClusterInterface
}
func NewLocalCacheSupplier(metrics einterfaces.MetricsInterface, cluster einterfaces.ClusterInterface) *LocalCacheSupplier {
supplier := &LocalCacheSupplier{
reactionCache: utils.NewLruWithParams(REACTION_CACHE_SIZE, "Reaction", REACTION_CACHE_SEC, model.CLUSTER_EVENT_INVALIDATE_CACHE_FOR_REACTIONS),
roleCache: utils.NewLruWithParams(ROLE_CACHE_SIZE, "Role", ROLE_CACHE_SEC, model.CLUSTER_EVENT_INVALIDATE_CACHE_FOR_ROLES),
metrics: metrics,
cluster: cluster,
}
if cluster != nil {
cluster.RegisterClusterMessageHandler(model.CLUSTER_EVENT_INVALIDATE_CACHE_FOR_REACTIONS, supplier.handleClusterInvalidateReaction)
cluster.RegisterClusterMessageHandler(model.CLUSTER_EVENT_INVALIDATE_CACHE_FOR_ROLES, supplier.handleClusterInvalidateRole)
}
return supplier
}
func (s *LocalCacheSupplier) SetChainNext(next LayeredStoreSupplier) {
s.next = next
}
func (s *LocalCacheSupplier) Next() LayeredStoreSupplier {
return s.next
}
func (s *LocalCacheSupplier) doStandardReadCache(ctx context.Context, cache utils.ObjectCache, key string, hints ...LayeredStoreHint) *LayeredStoreSupplierResult {
if hintsContains(hints, LSH_NO_CACHE) {
if s.metrics != nil {
s.metrics.IncrementMemCacheMissCounter(cache.Name())
}
return nil
}
if cacheItem, ok := cache.Get(key); ok {
if s.metrics != nil {
s.metrics.IncrementMemCacheHitCounter(cache.Name())
}
result := NewSupplierResult()
result.Data = cacheItem
return result
}
if s.metrics != nil {
s.metrics.IncrementMemCacheMissCounter(cache.Name())
}
return nil
}
func (s *LocalCacheSupplier) doStandardAddToCache(ctx context.Context, cache utils.ObjectCache, key string, result *LayeredStoreSupplierResult, hints ...LayeredStoreHint) {
if result.Err == nil && result.Data != nil {
cache.AddWithDefaultExpires(key, result.Data)
}
}
func (s *LocalCacheSupplier) doInvalidateCacheCluster(cache utils.ObjectCache, key string) {
cache.Remove(key)
if s.cluster != nil {
msg := &model.ClusterMessage{
Event: cache.GetInvalidateClusterEvent(),
SendType: model.CLUSTER_SEND_BEST_EFFORT,
Data: key,
}
s.cluster.SendClusterMessage(msg)
}
}
func (s *LocalCacheSupplier) doClearCacheCluster(cache utils.ObjectCache) {
cache.Purge()
if s.cluster != nil {
msg := &model.ClusterMessage{
Event: cache.GetInvalidateClusterEvent(),
SendType: model.CLUSTER_SEND_BEST_EFFORT,
Data: CLEAR_CACHE_MESSAGE_DATA,
}
s.cluster.SendClusterMessage(msg)
}
}
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