seaweedfs/go/weed/weed_server/master_server.go

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package weed_server
import (
"code.google.com/p/weed-fs/go/glog"
"code.google.com/p/weed-fs/go/replication"
"code.google.com/p/weed-fs/go/sequence"
"code.google.com/p/weed-fs/go/topology"
"github.com/gorilla/mux"
"path"
"sync"
)
type MasterServer struct {
port int
metaFolder string
volumeSizeLimitMB uint
pulseSeconds int
defaultRepType string
garbageThreshold string
whiteList []string
version string
topo *topology.Topology
vg *replication.VolumeGrowth
vgLock sync.Mutex
}
func NewMasterServer(r *mux.Router, version string, port int, metaFolder string,
volumeSizeLimitMB uint,
pulseSeconds int,
confFile string,
defaultRepType string,
garbageThreshold string,
whiteList []string) *MasterServer {
ms := &MasterServer{
version: version,
volumeSizeLimitMB: volumeSizeLimitMB,
pulseSeconds: pulseSeconds,
defaultRepType: defaultRepType,
garbageThreshold: garbageThreshold,
whiteList: whiteList,
}
//if len(*etcdCluster) == 0 {
seq := sequence.NewFileSequencer(path.Join(metaFolder, "weed.seq"))
//} else {
// seq = sequence.NewEtcdSequencer(*etcdCluster)
//}
var e error
if ms.topo, e = topology.NewTopology("topo", confFile, seq,
uint64(volumeSizeLimitMB)*1024*1024, pulseSeconds); e != nil {
glog.Fatalf("cannot create topology:%s", e)
}
ms.vg = replication.NewDefaultVolumeGrowth()
glog.V(0).Infoln("Volume Size Limit is", volumeSizeLimitMB, "MB")
r.HandleFunc("/dir/assign", secure(ms.whiteList, ms.dirAssignHandler))
r.HandleFunc("/dir/lookup", secure(ms.whiteList, ms.dirLookupHandler))
r.HandleFunc("/dir/join", secure(ms.whiteList, ms.dirJoinHandler))
r.HandleFunc("/dir/status", secure(ms.whiteList, ms.dirStatusHandler))
r.HandleFunc("/vol/grow", secure(ms.whiteList, ms.volumeGrowHandler))
r.HandleFunc("/vol/status", secure(ms.whiteList, ms.volumeStatusHandler))
r.HandleFunc("/vol/vacuum", secure(ms.whiteList, ms.volumeVacuumHandler))
r.HandleFunc("/submit", secure(ms.whiteList, ms.submitFromMasterServerHandler))
r.HandleFunc("/", ms.redirectHandler)
ms.topo.StartRefreshWritableVolumes(garbageThreshold)
return ms
}