frostfs-node/cmd/neofs-node/attributes.go

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package main
import (
"strconv"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
"github.com/nspcc-dev/neofs-node/pkg/util/attributes"
"github.com/spf13/viper"
)
const (
// list of default values for well-known attributes
defaultCapacity = 0
defaultPrice = 0
)
func parseAttributes(v *viper.Viper) []*netmap.NodeAttribute {
stringAttributes := readAttributes(v)
attrs, err := attributes.ParseV2Attributes(stringAttributes, nil)
if err != nil {
fatalOnErr(err)
}
return addWellKnownAttributes(attrs)
}
func readAttributes(v *viper.Viper) (attrs []string) {
const maxAttributes = 100
for i := 0; i < maxAttributes; i++ {
attr := v.GetString(cfgNodeAttributePrefix + "_" + strconv.Itoa(i))
if attr == "" {
return
}
attrs = append(attrs, attr)
}
return attrs
}
func addWellKnownAttributes(attrs []*netmap.NodeAttribute) []*netmap.NodeAttribute {
var hasCapacity, hasPrice bool
// check if user defined capacity and price attributes
for i := range attrs {
if !hasPrice && attrs[i].Key() == netmap.PriceAttr {
hasPrice = true
} else if !hasCapacity && attrs[i].Key() == netmap.CapacityAttr {
hasCapacity = true
}
}
// do not override user defined capacity and price attributes
if !hasCapacity {
capacity := netmap.NewNodeAttribute()
capacity.SetKey(netmap.CapacityAttr)
capacity.SetValue(strconv.FormatUint(defaultCapacity, 10))
attrs = append(attrs, capacity)
}
if !hasPrice {
price := netmap.NewNodeAttribute()
price.SetKey(netmap.PriceAttr)
price.SetValue(strconv.FormatUint(defaultPrice, 10))
attrs = append(attrs, price)
}
return attrs
}