Golang database.DataAccess类代码示例

func migrateTagMetadata(db *bolt.DB, data database.DataAccess) error {
	migrated, err := isMigrated(db, "metadata")
	if err != nil {
		return err
	}
	if !migrated {
		slog.Info("Migrating metadata to new database format")
		type Metavalue struct {
			Time  time.Time
			Value interface{}
		}
		metadata := make(map[metadata.Metakey]*Metavalue)
		if err := decode(db, "metadata", &metadata); err == nil {
			for k, v := range metadata {
				err = data.Metadata().PutTagMetadata(k.TagSet(), k.Name, fmt.Sprint(v.Value), v.Time)
				if err != nil {
					return err
				}
			}
			err = deleteKey(db, "metadata")
			if err != nil {
				return err
			}
		}
		err = setMigrated(db, "metadata")
		if err != nil {
			return err
		}
	}
	return nil
}

func migrateIncidents(db *bolt.DB, data database.DataAccess) error {
	migrated, err := isMigrated(db, "incidents")
	if err != nil {
		return err
	}
	if migrated {
		return nil
	}
	slog.Info("migrating incidents")
	incidents := map[uint64]*models.Incident{}
	if err := decode(db, "incidents", &incidents); err != nil {
		return err
	}
	max := uint64(0)
	for k, v := range incidents {
		data.Incidents().UpdateIncident(k, v)
		if k > max {
			max = k
		}
	}

	if err = data.Incidents().SetMaxId(max); err != nil {
		return err
	}
	if err = setMigrated(db, "incidents"); err != nil {
		return err
	}

	return nil
}

func migrateSearch(db *bolt.DB, data database.DataAccess) error {
	migrated, err := isMigrated(db, "search")
	if err != nil {
		return err
	}
	if !migrated {
		slog.Info("Migrating Search data to new database format")
		type duple struct{ A, B string }
		type present map[string]int64
		type qmap map[duple]present
		type smap map[string]present

		metric := qmap{}
		if err := decode(db, "metric", &metric); err == nil {
			for k, v := range metric {
				for metric, time := range v {
					data.Search().AddMetricForTag(k.A, k.B, metric, time)
				}
			}
		} else {
			return err
		}
		tagk := smap{}
		if err := decode(db, "tagk", &tagk); err == nil {
			for metric, v := range tagk {
				for tk, time := range v {
					data.Search().AddTagKeyForMetric(metric, tk, time)
				}
				data.Search().AddMetric(metric, time.Now().Unix())
			}
		} else {
			return err
		}

		tagv := qmap{}
		if err := decode(db, "tagv", &tagv); err == nil {
			for k, v := range tagv {
				for val, time := range v {
					data.Search().AddTagValue(k.A, k.B, val, time)
					data.Search().AddTagValue(database.Search_All, k.B, val, time)
				}
			}
		} else {
			return err
		}
		err = setMigrated(db, "search")
		if err != nil {
			return err
		}
	}
	return nil
}

func migrateSilence(db *bolt.DB, data database.DataAccess) error {
	migrated, err := isMigrated(db, "silence")
	if err != nil {
		return err
	}
	if migrated {
		return nil
	}
	slog.Info("migrating silence")
	silence := map[string]*models.Silence{}
	if err := decode(db, "silence", &silence); err != nil {
		return err
	}
	for _, v := range silence {
		v.TagString = v.Tags.Tags()
		data.Silence().AddSilence(v)
	}
	if err = setMigrated(db, "silence"); err != nil {
		return err
	}
	return nil
}

func migrateMetricMetadata(db *bolt.DB, data database.DataAccess) error {
	migrated, err := isMigrated(db, "metadata-metric")
	if err != nil {
		return err
	}
	if !migrated {
		slog.Info("Migrating metric metadata to new database format")
		type MetadataMetric struct {
			Unit        string `json:",omitempty"`
			Type        string `json:",omitempty"`
			Description string
		}
		mms := map[string]*MetadataMetric{}
		if err := decode(db, "metadata-metric", &mms); err == nil {
			for name, mm := range mms {
				if mm.Description != "" {
					err = data.Metadata().PutMetricMetadata(name, "desc", mm.Description)
					if err != nil {
						return err
					}
				}
				if mm.Unit != "" {
					err = data.Metadata().PutMetricMetadata(name, "unit", mm.Unit)
					if err != nil {
						return err
					}
				}
				if mm.Type != "" {
					err = data.Metadata().PutMetricMetadata(name, "rate", mm.Type)
					if err != nil {
						return err
					}
				}
			}
			err = setMigrated(db, "metadata-metric")
			if err != nil {
				return err
			}
		}
	}
	return nil
}

func migrateOldDataToRedis(db *bolt.DB, data database.DataAccess) error {
	// metadata-metric

	migrated, err := isMigrated(db, "metadata-metric")
	if err != nil {
		return err
	}
	if !migrated {
		type MetadataMetric struct {
			Unit        string `json:",omitempty"`
			Type        string `json:",omitempty"`
			Description string
		}
		slog.Info("Migrating metric metadata to new database format")
		mms := map[string]*MetadataMetric{}
		if err := decode(db, "metadata-metric", &mms); err == nil {
			for name, mm := range mms {
				if mm.Description != "" {
					err = data.PutMetricMetadata(name, "desc", mm.Description)
					if err != nil {
						return err
					}
				}
				if mm.Unit != "" {
					err = data.PutMetricMetadata(name, "unit", mm.Unit)
					if err != nil {
						return err
					}
				}
				if mm.Type != "" {
					err = data.PutMetricMetadata(name, "rate", mm.Type)
					if err != nil {
						return err
					}
				}
			}
			err = setMigrated(db, "metadata-metric")
			if err != nil {
				return err
			}
		}
	}
	//metadata
	migrated, err = isMigrated(db, "metadata")
	if err != nil {
		return err
	}
	if !migrated {
		slog.Info("Migrating metadata to new database format")
		type Metavalue struct {
			Time  time.Time
			Value interface{}
		}
		metadata := make(map[metadata.Metakey]*Metavalue)
		if err := decode(db, "metadata", &metadata); err == nil {

			for k, v := range metadata {
				err = data.PutTagMetadata(k.TagSet(), k.Name, fmt.Sprint(v.Value), v.Time)
				if err != nil {
					return err
				}
			}
			err = deleteKey(db, "metadata")
			if err != nil {
				return err
			}
		}
		err = setMigrated(db, "metadata")
		if err != nil {
			return err
		}
	}
	return nil
}

func migrateState(db *bolt.DB, data database.DataAccess) error {
	migrated, err := isMigrated(db, "state")
	if err != nil {
		return err
	}
	if migrated {
		return nil
	}
	//redefine the structs as they were when we gob encoded them
	type Result struct {
		*expr.Result
		Expr string
	}
	mResult := func(r *Result) *models.Result {
		if r == nil || r.Result == nil {
			return &models.Result{}
		}
		v, _ := valueToFloat(r.Result.Value)
		return &models.Result{
			Computations: r.Result.Computations,
			Value:        models.Float(v),
			Expr:         r.Expr,
		}
	}
	type Event struct {
		Warn, Crit  *Result
		Status      models.Status
		Time        time.Time
		Unevaluated bool
		IncidentId  uint64
	}
	type State struct {
		*Result
		History      []Event
		Actions      []models.Action
		Touched      time.Time
		Alert        string
		Tags         string
		Group        opentsdb.TagSet
		Subject      string
		Body         string
		EmailBody    []byte
		EmailSubject []byte
		Attachments  []*models.Attachment
		NeedAck      bool
		Open         bool
		Forgotten    bool
		Unevaluated  bool
		LastLogTime  time.Time
	}
	type OldStates map[models.AlertKey]*State
	slog.Info("migrating state")
	states := OldStates{}
	if err := decode(db, "status", &states); err != nil {
		return err
	}
	for ak, state := range states {
		if len(state.History) == 0 {
			continue
		}
		var thisId uint64
		events := []Event{}
		addIncident := func(saveBody bool) error {
			if thisId == 0 || len(events) == 0 || state == nil {
				return nil
			}
			incident := NewIncident(ak)
			incident.Expr = state.Expr

			incident.NeedAck = state.NeedAck
			incident.Open = state.Open
			incident.Result = mResult(state.Result)
			incident.Unevaluated = state.Unevaluated
			incident.Start = events[0].Time
			incident.Id = int64(thisId)
			incident.Subject = state.Subject
			if saveBody {
				incident.Body = state.Body
			}
			for _, ev := range events {
				incident.CurrentStatus = ev.Status
				mEvent := models.Event{
					Crit:        mResult(ev.Crit),
					Status:      ev.Status,
					Time:        ev.Time,
					Unevaluated: ev.Unevaluated,
					Warn:        mResult(ev.Warn),
				}
				incident.Events = append(incident.Events, mEvent)
				if ev.Status > incident.WorstStatus {
					incident.WorstStatus = ev.Status
				}
				if ev.Status > models.StNormal {
					incident.LastAbnormalStatus = ev.Status
					incident.LastAbnormalTime = ev.Time.UTC().Unix()
				}
			}
			for _, ac := range state.Actions {
				if ac.Time.Before(incident.Start) {
					continue
//.........这里部分代码省略.........