1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package store
import (
"context"
"github.com/mattermost/platform/einterfaces"
"github.com/mattermost/platform/model"
"github.com/mattermost/platform/utils"
)
const (
REACTION_CACHE_SIZE = 20000
REACTION_CACHE_SEC = 1800 // 30 minutes
CLEAR_CACHE_MESSAGE_DATA = ""
)
type LocalCacheSupplier struct {
next LayeredStoreSupplier
reactionCache *utils.Cache
}
func NewLocalCacheSupplier() *LocalCacheSupplier {
supplier := &LocalCacheSupplier{
reactionCache: utils.NewLruWithParams(REACTION_CACHE_SIZE, "Reaction", REACTION_CACHE_SEC, model.CLUSTER_EVENT_INVALIDATE_CACHE_FOR_REACTIONS),
}
registerClusterHandlers(supplier)
return supplier
}
func registerClusterHandlers(supplier *LocalCacheSupplier) {
if cluster := einterfaces.GetClusterInterface(); cluster != nil {
cluster.RegisterClusterMessageHandler(model.CLUSTER_EVENT_INVALIDATE_CACHE_FOR_REACTIONS, supplier.handleClusterInvalidateReaction)
}
}
func (s *LocalCacheSupplier) SetChainNext(next LayeredStoreSupplier) {
s.next = next
}
func (s *LocalCacheSupplier) Next() LayeredStoreSupplier {
return s.next
}
func doStandardReadCache(ctx context.Context, cache utils.ObjectCache, key string, hints ...LayeredStoreHint) *LayeredStoreSupplierResult {
metrics := einterfaces.GetMetricsInterface()
if hintsContains(hints, LSH_NO_CACHE) {
if metrics != nil {
metrics.IncrementMemCacheMissCounter(cache.Name())
}
return nil
}
if cacheItem, ok := cache.Get(key); ok {
if metrics != nil {
metrics.IncrementMemCacheHitCounter(cache.Name())
}
result := NewSupplierResult()
result.Data = cacheItem
return result
}
if metrics != nil {
metrics.IncrementMemCacheMissCounter(cache.Name())
}
return nil
}
func 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 doInvalidateCacheCluster(cache utils.ObjectCache, key string) {
cache.Remove(key)
if einterfaces.GetClusterInterface() != nil {
msg := &model.ClusterMessage{
Event: cache.GetInvalidateClusterEvent(),
SendType: model.CLUSTER_SEND_BEST_EFFORT,
Data: key,
}
einterfaces.GetClusterInterface().SendClusterMessage(msg)
}
}
func doClearCacheCluster(cache utils.ObjectCache) {
cache.Purge()
if einterfaces.GetClusterInterface() != nil {
msg := &model.ClusterMessage{
Event: cache.GetInvalidateClusterEvent(),
SendType: model.CLUSTER_SEND_BEST_EFFORT,
Data: CLEAR_CACHE_MESSAGE_DATA,
}
einterfaces.GetClusterInterface().SendClusterMessage(msg)
}
}
|
