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go-micro/client/node_selector.go

30 lines
561 B
Go

package client
import (
"math/rand"
"time"
"github.com/myodc/go-micro/errors"
"github.com/myodc/go-micro/registry"
)
func init() {
rand.Seed(time.Now().UnixNano())
}
func nodeSelector(service []*registry.Service) (*registry.Node, error) {
if len(service) == 0 {
return nil, errors.NotFound("go.micro.client", "Service not found")
}
i := rand.Int()
j := i % len(service)
if len(service[j].Nodes) == 0 {
return nil, errors.NotFound("go.micro.client", "Service not found")
}
n := i % len(service[j].Nodes)
return service[j].Nodes[n], nil
}