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database: replace badger with redis (#28)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,85 @@ | ||
| package memory | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/ushis/gesundheit/db" | ||
| "github.com/ushis/gesundheit/db/badger" | ||
| "github.com/ushis/gesundheit/result" | ||
| ) | ||
|
|
||
| func init() { | ||
| db.Register("memory", New) | ||
| } | ||
|
|
||
| type Database struct { | ||
| db map[string]map[string]result.Event | ||
| } | ||
|
|
||
| func New(_ func(interface{}) error) (db.Database, error) { | ||
| return badger.New(badger.Opts{Persistent: false, Path: ""}) | ||
| return Database{make(map[string]map[string]result.Event)}, nil | ||
| } | ||
|
|
||
| func (db Database) Close() error { | ||
| return nil | ||
| } | ||
|
|
||
| func (db Database) Handle(e result.Event) error { | ||
| if checks, ok := db.db[e.NodeName]; ok { | ||
| checks[e.CheckId] = e | ||
| } else { | ||
| checks = make(map[string]result.Event) | ||
| checks[e.CheckId] = e | ||
| db.db[e.NodeName] = checks | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (db Database) GetEvents() ([]result.Event, error) { | ||
| events := []result.Event{} | ||
|
|
||
| for _, checks := range db.db { | ||
| for _, event := range checks { | ||
| if !isExpired(event) { | ||
| events = append(events, event) | ||
| } | ||
| } | ||
| } | ||
| return events, nil | ||
| } | ||
|
|
||
| func (db Database) GetEventsByNode(name string) ([]result.Event, error) { | ||
| checks, ok := db.db[name] | ||
|
|
||
| if !ok { | ||
| return []result.Event{}, nil | ||
| } | ||
| events := []result.Event{} | ||
|
|
||
| for _, event := range checks { | ||
| if !isExpired(event) { | ||
| events = append(events, event) | ||
| } | ||
| } | ||
| return events, nil | ||
| } | ||
|
|
||
| func (db Database) GetLatestEventByNode(name string) (event result.Event, ok bool, err error) { | ||
| events, _ := db.GetEventsByNode(name) | ||
|
|
||
| if len(events) == 0 { | ||
| return event, false, nil | ||
| } | ||
| event = events[0] | ||
|
|
||
| for _, e := range events[1:] { | ||
| if e.Timestamp.After(event.Timestamp) { | ||
| event = e | ||
| } | ||
| } | ||
| return event, true, nil | ||
| } | ||
|
|
||
| func isExpired(e result.Event) bool { | ||
| ttl := time.Duration(e.CheckInterval) * time.Second * 2 | ||
| return time.Since(e.Timestamp) > ttl | ||
| } |
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