seaweedfs/go/topology/rack.go
2013-02-10 03:49:51 -08:00

65 lines
1.3 KiB
Go

package topology
import (
"strconv"
"time"
)
type Rack struct {
NodeImpl
}
func NewRack(id string) *Rack {
r := &Rack{}
r.id = NodeId(id)
r.nodeType = "Rack"
r.children = make(map[NodeId]Node)
r.NodeImpl.value = r
return r
}
func (r *Rack) FindDataNode(ip string, port int) *DataNode {
for _, c := range r.Children() {
dn := c.(*DataNode)
if dn.MatchLocation(ip, port) {
return dn
}
}
return nil
}
func (r *Rack) GetOrCreateDataNode(ip string, port int, publicUrl string, maxVolumeCount int) *DataNode {
for _, c := range r.Children() {
dn := c.(*DataNode)
if dn.MatchLocation(ip, port) {
dn.LastSeen = time.Now().Unix()
if dn.Dead {
dn.Dead = false
r.GetTopology().chanRecoveredDataNodes <- dn
dn.UpAdjustMaxVolumeCountDelta(maxVolumeCount - dn.maxVolumeCount)
}
return dn
}
}
dn := NewDataNode(ip + ":" + strconv.Itoa(port))
dn.Ip = ip
dn.Port = port
dn.PublicUrl = publicUrl
dn.maxVolumeCount = maxVolumeCount
dn.LastSeen = time.Now().Unix()
r.LinkChildNode(dn)
return dn
}
func (rack *Rack) ToMap() interface{} {
m := make(map[string]interface{})
m["Max"] = rack.GetMaxVolumeCount()
m["Free"] = rack.FreeSpace()
var dns []interface{}
for _, c := range rack.Children() {
dn := c.(*DataNode)
dns = append(dns, dn.ToMap())
}
m["DataNodes"] = dns
return m
}