//all past commited command will come into replicators inbox
func ListenInBox(Replicator Raft.Replicator) {
count := 0
var xcel Xcel
for {
select {
case t := <-Replicator.Inbox():
count++
fmt.Println("enter receinved:", count)
buf := bytes.NewBufferString(string(*t))
dec := gob.NewDecoder(buf)
err := dec.Decode(&xcel)
if err != nil {
panic(fmt.Sprintf("decode:", err))
} else {
ApplyOldCommandTOSM(&xcel)
}
}
}
}
// create new xceldb
func main() {
var Cluster cluster.Server
var Replicator Raft.Replicator
Id := flag.Int("id", 1, "a int")
flag.Parse()
configFname := GetPath() + "/src/github.com/nilangshah/XcelDB/config.xml"
Confname := GetPath() + "/src/github.com/nilangshah/XcelDB/c_config.xml"
LogPath := GetPath() + "/src/github.com/nilangshah/XcelDB/Raftlog" + strconv.Itoa(*Id)
//intialize state machine
xcelSM := NewStateMachine()
//intialize replicator and cluster
Cluster = cluster.New(*Id, Confname)
Replicator = Raft.New(Cluster, LogPath)
// listen inbox for past commited commands
go ListenInBox(Replicator)
//initialize db
xcelDB = &XcelDB{
xcelId: uint64(*Id),
xcelSM: xcelSM,
xcelReplicator: Replicator,
}
//start replicator
Replicator.Start()
//intialize xceldb
//read config file
var Jsontype Jsonobject
file, e := ioutil.ReadFile(configFname)
if e != nil {
panic("File error: " + e.Error())
}
xml.Unmarshal(file, &Jsontype)
//fmt.Println(xml.Marshal(&Jsontype))
// store configuration
count := 0
xcelDB.xcelPeers = make([]uint64, len(Jsontype.Object.Servers))
xcelDB.xcelPeermap = make(map[uint64]string, len(Jsontype.Object.Servers))
for i := range Jsontype.Object.Servers {
if Jsontype.Object.Servers[i].Id == uint64(*Id) {
} else {
xcelDB.xcelPeers[count] = Jsontype.Object.Servers[i].Id
count++
}
xcelDB.xcelPeermap[Jsontype.Object.Servers[i].Id] = Jsontype.Object.Servers[i].Host
}
//start http server
http.HandleFunc("/", kvHandler)
select {
case <-time.After(2 * time.Second):
fmt.Println(xcelDB.xcelReplicator.IsRunning())
}
http.ListenAndServe(xcelDB.xcelPeermap[uint64(*Id)], nil)
}