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package etcd
import (
"net/url"
"strings"
)
type Cluster struct {
Leader string `json:"leader"`
Machines []string `json:"machines"`
}
func NewCluster(machines []string) *Cluster {
// if an empty slice was sent in then just assume HTTP 4001 on localhost
if len(machines) == 0 {
machines = []string{"http://127.0.0.1:4001"}
}
// default leader and machines
return &Cluster{
Leader: machines[0],
Machines: machines,
}
}
// switchLeader switch the current leader to machines[num]
func (cl *Cluster) switchLeader(num int) {
logger.Debugf("switch.leader[from %v to %v]",
cl.Leader, cl.Machines[num])
cl.Leader = cl.Machines[num]
}
func (cl *Cluster) updateFromStr(machines string) {
cl.Machines = strings.Split(machines, ", ")
}
func (cl *Cluster) updateLeader(leader string) {
logger.Debugf("update.leader[%s,%s]", cl.Leader, leader)
cl.Leader = leader
}
func (cl *Cluster) updateLeaderFromURL(u *url.URL) {
var leader string
if u.Scheme == "" {
leader = "http://" + u.Host
} else {
leader = u.Scheme + "://" + u.Host
}
cl.updateLeader(leader)
}
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