store

Documentation

Index

• Variables
• type Alerts
  • func NewAlerts() *Alerts
  • func (a *Alerts) DeleteIfNotModified(alerts types.AlertSlice) error
  • func (a *Alerts) Empty() bool
  • func (a *Alerts) GC() []types.Alert
  • func (a *Alerts) Get(fp model.Fingerprint) (*types.Alert, error)
  • func (a *Alerts) List() []*types.Alert
  • func (a *Alerts) Run(ctx context.Context, interval time.Duration)
  • func (a *Alerts) Set(alert *types.Alert) error
  • func (a *Alerts) SetGCCallback(cb func([]types.Alert))

Variables

var ErrNotFound = errors.New("alert not found")

ErrNotFound is returned if a Store cannot find the Alert.

Types

type Alerts

type Alerts struct {
	sync.Mutex
	// contains filtered or unexported fields
}

Alerts provides lock-coordinated to an in-memory map of alerts, keyed by their fingerprint. Resolved alerts are removed from the map based on gcInterval. An optional callback can be set which receives a slice of all resolved alerts that have been removed.

func NewAlerts

func NewAlerts() *Alerts

NewAlerts returns a new Alerts struct.

func (*Alerts) DeleteIfNotModified

func (a *Alerts) DeleteIfNotModified(alerts types.AlertSlice) error

DeleteIfNotModified deletes the slice of Alerts from the store if not modified.

func (*Alerts) Empty

func (a *Alerts) Empty() bool

Empty returns true if the store is empty.

func (*Alerts) GC

func (a *Alerts) GC() []types.Alert

GC deletes resolved alerts and returns them.

func (*Alerts) Get

func (a *Alerts) Get(fp model.Fingerprint) (*types.Alert, error)

Get returns the Alert with the matching fingerprint, or an error if it is not found.

func (*Alerts) List

func (a *Alerts) List() []*types.Alert

List returns a slice of Alerts currently held in memory.

func (*Alerts) Run

func (a *Alerts) Run(ctx context.Context, interval time.Duration)

Run starts the GC loop. The interval must be greater than zero; if not, the function will panic.

func (*Alerts) Set

func (a *Alerts) Set(alert *types.Alert) error

Set unconditionally sets the alert in memory.

func (*Alerts) SetGCCallback

func (a *Alerts) SetGCCallback(cb func([]types.Alert))

SetGCCallback sets a GC callback to be executed after each GC.