Beispiel #1
0
func updatePlacements(view db.Database, spec stitch.Stitch) {
	var placements db.PlacementSlice
	for _, sp := range spec.Placements {
		placements = append(placements, db.Placement{
			TargetLabel: sp.TargetLabel,
			Exclusive:   sp.Exclusive,
			OtherLabel:  sp.OtherLabel,
			Provider:    sp.Provider,
			Size:        sp.Size,
			Region:      sp.Region,
		})
	}

	key := func(val interface{}) interface{} {
		p := val.(db.Placement)
		p.ID = 0
		return p
	}

	dbPlacements := db.PlacementSlice(view.SelectFromPlacement(nil))
	_, addSet, removeSet := join.HashJoin(placements, dbPlacements, key, key)

	for _, toAddIntf := range addSet {
		toAdd := toAddIntf.(db.Placement)

		id := view.InsertPlacement().ID
		toAdd.ID = id
		view.Commit(toAdd)
	}

	for _, toRemove := range removeSet {
		view.Remove(toRemove.(db.Placement))
	}
}
Beispiel #2
0
func updatePlacements(view db.Database, spec stitch.Stitch) {
	stitchPlacements := toDBPlacements(spec.QueryPlacements())
	key := func(val interface{}) interface{} {
		pVal := val.(db.Placement)
		return struct {
			tl   string
			rule db.PlacementRule
		}{pVal.TargetLabel, pVal.Rule}
	}

	_, addSet, removeSet := join.HashJoin(stitchPlacements,
		db.PlacementSlice(view.SelectFromPlacement(nil)), key, key)

	for _, toAddIntf := range addSet {
		toAdd := toAddIntf.(db.Placement)

		newPlacement := view.InsertPlacement()
		newPlacement.TargetLabel = toAdd.TargetLabel
		newPlacement.Rule = toAdd.Rule
		view.Commit(newPlacement)
	}

	for _, toRemove := range removeSet {
		view.Remove(toRemove.(db.Placement))
	}
}