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controller.go
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controller.go
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package electionMsgTesting
import (
"fmt"
"reflect"
"github.com/FactomProject/factomd/common/interfaces"
"github.com/FactomProject/factomd/common/messages"
"github.com/FactomProject/factomd/common/messages/electionMsgs"
"github.com/FactomProject/factomd/common/primitives"
"github.com/FactomProject/factomd/elections"
"github.com/FactomProject/factomd/electionsCore/election"
priminterpreter "github.com/FactomProject/factomd/electionsCore/interpreter/primitives"
"github.com/FactomProject/factomd/state"
"github.com/FactomProject/factomd/testHelper"
)
var _ = fmt.Println
// Controller will be able to route messages to a set of nodes and control various
// communication patterns
type Controller struct {
Elections []*elections.Elections
ElectionAdapters []*electionMsgs.ElectionAdapter
Volunteers []*electionMsgs.FedVoteVolunteerMsg
feds []interfaces.IServer
auds []interfaces.IServer
Buffer *MessageBuffer
GlobalDisplay *election.Display
//Router *Router
OutputsToRouter bool
*priminterpreter.Primitives
PrintingTrace bool
History []string
}
// NewController creates all the elections and initial volunteer messages
func NewController(feds, auds int) *Controller {
c := new(Controller)
c.feds = make([]interfaces.IServer, feds)
c.auds = make([]interfaces.IServer, auds)
c.Elections = make([]*elections.Elections, len(c.feds))
for i := range c.feds {
e := new(elections.Elections)
s := state.Server{}
s.ChainID, _ = primitives.HexToHash("888888" + fmt.Sprintf("%058d", i))
e.FedID = s.ChainID
s.Name = fmt.Sprintf("Node%d", i)
s.Online = true
c.feds[i] = &s
e.State = testHelper.CreateAndPopulateTestStateAndStartValidator()
e.State.SetIdentityChainID(s.ChainID)
c.Elections[i] = e
}
for i := range c.auds {
s := state.Server{}
s.ChainID, _ = primitives.HexToHash("888888" + fmt.Sprintf("%058d", i+10))
s.Name = fmt.Sprintf("Node%d", i)
s.Online = true
c.auds[i] = &s
}
for _, e := range c.Elections {
e.Federated = make([]interfaces.IServer, len(c.feds))
for j := range c.feds {
e.Federated[j] = c.feds[j]
}
e.State.(*state.State).ProcessLists.Get(1).FedServers = e.Federated
}
for _, e := range c.Elections {
e.Audit = make([]interfaces.IServer, len(c.auds))
for j := range c.auds {
e.Audit[j] = c.auds[j]
}
e.State.(*state.State).ProcessLists.Get(1).AuditServers = e.Audit
}
c.ElectionAdapters = make([]*electionMsgs.ElectionAdapter, len(c.Elections))
for i, e := range c.Elections {
c.ElectionAdapters[i] = electionMsgs.NewElectionAdapter(e, e.State.GetIdentityChainID())
c.ElectionAdapters[i].SimulatedElection.AddDisplay(nil)
}
c.GlobalDisplay = election.NewDisplay(c.ElectionAdapters[0].SimulatedElection, nil)
c.GlobalDisplay.Identifier = "Global"
for _, e := range c.ElectionAdapters {
e.SimulatedElection.Display.Global = c.GlobalDisplay
}
c.Volunteers = make([]*electionMsgs.FedVoteVolunteerMsg, len(c.auds))
for i, _ := range c.auds {
c.Volunteers[i] = NewTestVolunteerMessage(c.Elections[0], 2, 0)
}
c.Buffer = NewMessageBuffer()
return c
}
func NewTestVolunteerMessage(ele *elections.Elections, f, a int) *electionMsgs.FedVoteVolunteerMsg {
v := new(electionMsgs.FedVoteVolunteerMsg)
v.SigType = true
v.Name = "Leader 2"
v.FedIdx = uint32(f)
v.FedID = ele.Federated[f].GetChainID()
v.ServerIdx = uint32(a)
v.ServerID = ele.Audit[a].GetChainID()
v.ServerName = "Volunteer 0"
v.Missing = new(messages.EOM)
eom := v.Missing.(*messages.EOM)
eom.ChainID = primitives.NewHash([]byte("id"))
eom.LeaderChainID = primitives.NewHash([]byte("leader"))
eom.Timestamp = primitives.NewTimestampNow()
v.Ack = new(messages.Ack)
ack := v.Ack.(*messages.Ack)
ack.Timestamp = primitives.NewTimestampNow()
ack.LeaderChainID = primitives.NewHash([]byte("leader"))
ack.MessageHash = primitives.NewHash([]byte("msg"))
ack.SerialHash = primitives.NewHash([]byte("serial"))
v.TS = primitives.NewTimestampNow()
v.InitFields(ele)
return v
}
func (c *Controller) ElectionStatus(node int) string {
if node == -1 {
return c.GlobalDisplay.String()
}
return c.ElectionAdapters[node].SimulatedElection.Display.String()
}
func (c *Controller) RouteLeaderSetLevelMessage(from []int, level int, to []int) bool {
for _, f := range from {
if !c.RouteLeaderLevelMessage(f, level, to) {
return false
}
}
return true
}
func (c *Controller) RouteLeaderLevelMessage(from int, level int, to []int) bool {
msg := c.Buffer.RetrieveLeaderLevelMessageByLevel(c.indexToFedID(from), level)
if msg == nil {
return false
}
c.RouteMessage(msg, to)
return true
}
func (c *Controller) RouteLeaderSetVoteMessage(from []int, vol int, to []int) bool {
for _, f := range from {
if !c.RouteLeaderVoteMessage(f, vol, to) {
return false
}
}
return true
}
func (c *Controller) RouteLeaderVoteMessage(from int, vol int, to []int) bool {
msg := c.Buffer.RetrieveLeaderVoteMessage(c.indexToFedID(from), c.indexToAudID(vol))
if msg == nil {
return false
}
c.RouteMessage(msg, to)
return true
}
func (c *Controller) RouteVolunteerMessage(vol int, nodes []int) {
c.RouteMessage(c.Volunteers[vol], nodes)
}
// RouteMessage will execute message on all nodes given and add the messages returned to the buffer
func (c *Controller) RouteMessage(msg interfaces.IMsg, nodes []int) {
for _, n := range nodes {
c.routeSingleNode(msg, n)
}
}
func (c *Controller) routeSingleNode(msg interfaces.IMsg, node int) {
resp := c.ElectionAdapters[node].Execute(msg)
c.Buffer.Add(resp)
//
//if c.PrintingTrace {
// str := fmt.Sprintf("L%d: ", node)
// str += fmt.Sprintf(" Consumed(%s)", c.Elections[node].Display.FormatMessage(msg))
// str += fmt.Sprintf(" Generated(%s) StateChange: %t", c.Elections[node].Display.FormatMessage(resp))
// fmt.Println(str)
//}
}
// indexToAudID will take the human legible "Audit 1" and get the correct identity.
func (c *Controller) indexToAudID(index int) (rval interfaces.IHash) {
defer func() {
if rval == nil {
primitives.LogNilHashBug("Controller.indexToAudID() returned a nil for IHash")
} else if reflect.ValueOf(rval).IsNil() {
primitives.LogNilHashBug("Controller.indexToAudID() returned an interface nil")
rval = nil // convert an interface that is nil to a nil interface
}
}()
// TODO: Actually implement some logic if this changes
return c.auds[index].GetChainID()
}
func (c *Controller) fedIDtoIndex(id interfaces.IHash) int {
for i, f := range c.feds {
if f.GetChainID().IsSameAs(id) {
return i
}
}
return -1
}
// indexToFedID will take the human legible "Leader 1" and get the correct identity
func (c *Controller) indexToFedID(index int) (rval interfaces.IHash) {
defer func() {
if rval == nil {
primitives.LogNilHashBug("Controller.indexToFedID() returned a nil for IHash")
} else if reflect.ValueOf(rval).IsNil() {
primitives.LogNilHashBug("Controller.indexToFedID() returned an interface nil")
rval = nil // convert an interface that is nil to a nil interface
}
}()
// TODO: Actually implement some logic if this changes
return c.feds[index].GetChainID()
}