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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| package idents | ||
|
|
||
| import ( | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/toolkits/pkg/logger" | ||
| "github.com/toolkits/pkg/slice" | ||
| "gorm.io/gorm" | ||
| ) | ||
|
|
||
| type Set struct { | ||
| sync.Mutex | ||
| items map[string]struct{} | ||
| db *gorm.DB | ||
| } | ||
|
|
||
| func New(db *gorm.DB) *Set { | ||
| set := &Set{ | ||
| items: make(map[string]struct{}), | ||
| db: db, | ||
| } | ||
|
|
||
| set.Init() | ||
| return set | ||
| } | ||
|
|
||
| func (s *Set) Init() { | ||
| go s.LoopPersist() | ||
| } | ||
|
|
||
| func (s *Set) MSet(items map[string]struct{}) { | ||
| s.Lock() | ||
| defer s.Unlock() | ||
| for ident := range items { | ||
| s.items[ident] = struct{}{} | ||
| } | ||
| } | ||
|
|
||
| func (s *Set) LoopPersist() { | ||
| for { | ||
| time.Sleep(time.Second) | ||
| s.persist() | ||
| } | ||
| } | ||
|
|
||
| func (s *Set) persist() { | ||
| var items map[string]struct{} | ||
|
|
||
| s.Lock() | ||
| if len(s.items) == 0 { | ||
| s.Unlock() | ||
| return | ||
| } | ||
|
|
||
| items = s.items | ||
| s.items = make(map[string]struct{}) | ||
| s.Unlock() | ||
|
|
||
| s.updateTimestamp(items) | ||
| } | ||
|
|
||
| func (s *Set) updateTimestamp(items map[string]struct{}) { | ||
| lst := make([]string, 0, 100) | ||
| now := time.Now().Unix() | ||
| num := 0 | ||
| for ident := range items { | ||
| lst = append(lst, ident) | ||
| num++ | ||
| if num == 100 { | ||
| if err := s.updateTargets(lst, now); err != nil { | ||
| logger.Errorf("failed to update targets: %v", err) | ||
| } | ||
| lst = lst[:0] | ||
| num = 0 | ||
| } | ||
| } | ||
|
|
||
| if err := s.updateTargets(lst, now); err != nil { | ||
| logger.Errorf("failed to update targets: %v", err) | ||
| } | ||
| } | ||
|
|
||
| func (s *Set) updateTargets(lst []string, now int64) error { | ||
| count := int64(len(lst)) | ||
| if count == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| ret := s.db.Table("target").Where("ident in ?", lst).Update("update_at", now) | ||
| if ret.Error != nil { | ||
| return ret.Error | ||
| } | ||
|
|
||
| if ret.RowsAffected == count { | ||
| return nil | ||
| } | ||
|
|
||
| // there are some idents not found in db, so insert them | ||
| var exists []string | ||
| err := s.db.Table("target").Where("ident in ?", lst).Pluck("ident", &exists).Error | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| news := slice.SubString(lst, exists) | ||
| for i := 0; i < len(news); i++ { | ||
| err = s.db.Exec("INSERT INTO target(ident, update_at, cluster) VALUES(?, ?, ?)", news[i], now, "").Error | ||
| if err != nil { | ||
| logger.Error("failed to insert target:", news[i], "error:", err) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |
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