/
store.go
72 lines (62 loc) · 1.86 KB
/
store.go
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
package main
import (
"errors"
"sort"
"github.com/golang/protobuf/ptypes"
"github.com/golang/protobuf/ptypes/any"
pbActivity "github.com/vuonghp92/grpc-mcro-demo/proto/activity"
"github.com/vuonghp92/grpc-mcro-demo/shared/inmemory"
)
type Store interface {
CreateActivity(activity *pbActivity.Activity) (*pbActivity.Activity, error)
FindActivities(userID uint64) ([]*pbActivity.Activity, error)
}
func NewStoreOnMemory() *StoreOnMemory {
return &StoreOnMemory{inmemory.NewIndexMap()}
}
type StoreOnMemory struct {
activities *inmemory.IndexMap
}
func (s *StoreOnMemory) CreateActivity(activity *pbActivity.Activity) (*pbActivity.Activity, error) {
if kindOf(activity.Content) == KindUnknown {
return nil, errors.New("unknown activity content")
}
newActivity := *activity
idx := s.activities.Index()
newActivity.Id = idx
s.activities.Set(idx, &newActivity)
return &newActivity, nil
}
func (s *StoreOnMemory) FindActivities(userID uint64) ([]*pbActivity.Activity, error) {
var activities []*pbActivity.Activity
s.activities.Range(func(idx uint64, value interface{}) bool {
activity := value.(*pbActivity.Activity)
if activity.UserId == userID {
activities = append(activities, activity)
}
return true
})
sort.Slice(activities, func(i, j int) bool {
return activities[i].CreatedAt.Seconds > activities[j].CreatedAt.Seconds
})
return activities, nil
}
type Kind int32
const (
KindUnknown Kind = 0
KindCreateTask Kind = 1
KindUpdateTaskStatus Kind = 2
KindCreateProject Kind = 3
)
func kindOf(any *any.Any) Kind {
if msg := new(pbActivity.CreateTaskContent); ptypes.Is(any, msg) {
return KindCreateTask
}
if msg := new(pbActivity.UpdateTaskStatusContent); ptypes.Is(any, msg) {
return KindUpdateTaskStatus
}
if msg := new(pbActivity.CreateProjectContent); ptypes.Is(any, msg) {
return KindCreateProject
}
return KindUnknown
}