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Merge pull request #621 from milosgajdos83/no-table-package

Browse Source 
[WIP] No table package. router/service package introduced
This commit is contained in:
Asim Aslam
2019-07-29 12:36:40 +01:00
committed by GitHub
parent a5fb124b22 3d2ec5dbb1
commit 4fc9b9821a
17 changed files with 1099 additions and 707 deletions
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11
client/selector/router/router.go
View File

@@ -11,7 +11,6 @@ import (
"github.com/micro/go-micro/client/selector" "github.com/micro/go-micro/client/selector"
"github.com/micro/go-micro/network/router" "github.com/micro/go-micro/network/router"
pb "github.com/micro/go-micro/network/router/proto" pb "github.com/micro/go-micro/network/router/proto"
"github.com/micro/go-micro/network/router/table"
"github.com/micro/go-micro/registry" "github.com/micro/go-micro/registry"
) )
@@ -41,11 +40,11 @@ type clientKey struct{}
type routerKey struct{} type routerKey struct{}
// getRoutes returns the routes whether they are remote or local // getRoutes returns the routes whether they are remote or local
func (r *routerSelector) getRoutes(service string) ([]table.Route, error) { func (r *routerSelector) getRoutes(service string) ([]router.Route, error) {
if !r.remote { if !r.remote {
// lookup router for routes for the service // lookup router for routes for the service
return r.r.Lookup(table.NewQuery( return r.r.Lookup(router.NewQuery(
table.QueryService(service), router.QueryService(service),
)) ))
} }
@@ -102,11 +101,11 @@ func (r *routerSelector) getRoutes(service string) ([]table.Route, error) {
return nil, selector.ErrNoneAvailable return nil, selector.ErrNoneAvailable
} }
var routes []table.Route var routes []router.Route
// convert from pb to []*router.Route // convert from pb to []*router.Route
for _, r := range pbRoutes.Routes { for _, r := range pbRoutes.Routes {
routes = append(routes, table.Route{ routes = append(routes, router.Route{
Service: r.Service, Service: r.Service,
Address: r.Address, Address: r.Address,
Gateway: r.Gateway, Gateway: r.Gateway,

16
network/proxy/mucp/mucp.go
View File

@@ -15,8 +15,6 @@ import (
"github.com/micro/go-micro/network/proxy" "github.com/micro/go-micro/network/proxy"
"github.com/micro/go-micro/network/router" "github.com/micro/go-micro/network/router"
"github.com/micro/go-micro/server" "github.com/micro/go-micro/server"
"github.com/micro/go-micro/network/router/table"
) )
// Proxy will transparently proxy requests to an endpoint. // Proxy will transparently proxy requests to an endpoint.
@@ -36,7 +34,7 @@ type Proxy struct {
// A fib of routes service:address // A fib of routes service:address
sync.RWMutex sync.RWMutex
Routes map[string]map[uint64]table.Route Routes map[string]map[uint64]router.Route
// The channel to monitor watcher errors // The channel to monitor watcher errors
errChan chan error errChan chan error
@@ -78,7 +76,7 @@ func readLoop(r server.Request, s client.Stream) error {
} }
// toNodes returns a list of node addresses from given routes // toNodes returns a list of node addresses from given routes
func toNodes(routes map[uint64]table.Route) []string { func toNodes(routes map[uint64]router.Route) []string {
var nodes []string var nodes []string
for _, node := range routes { for _, node := range routes {
address := node.Address address := node.Address
@@ -98,7 +96,7 @@ func (p *Proxy) getRoute(service string) ([]string, error) {
p.Unlock() p.Unlock()
return toNodes(routes), nil return toNodes(routes), nil
} }
p.Routes[service] = make(map[uint64]table.Route) p.Routes[service] = make(map[uint64]router.Route)
p.Unlock() p.Unlock()
// if the router is broken return error // if the router is broken return error
@@ -107,7 +105,7 @@ func (p *Proxy) getRoute(service string) ([]string, error) {
} }
// lookup the routes in the router // lookup the routes in the router
results, err := p.Router.Lookup(table.NewQuery(table.QueryService(service))) results, err := p.Router.Lookup(router.NewQuery(router.QueryService(service)))
if err != nil { if err != nil {
return nil, err return nil, err
} }
@@ -124,11 +122,11 @@ func (p *Proxy) getRoute(service string) ([]string, error) {
} }
// manageRouteCache applies action on a given route to Proxy route cache // manageRouteCache applies action on a given route to Proxy route cache
func (p *Proxy) manageRouteCache(route table.Route, action string) error { func (p *Proxy) manageRouteCache(route router.Route, action string) error {
switch action { switch action {
case "create", "update": case "create", "update":
if _, ok := p.Routes[route.Service]; !ok { if _, ok := p.Routes[route.Service]; !ok {
p.Routes[route.Service] = make(map[uint64]table.Route) p.Routes[route.Service] = make(map[uint64]router.Route)
} }
p.Routes[route.Service][route.Hash()] = route p.Routes[route.Service][route.Hash()] = route
case "delete": case "delete":
@@ -317,7 +315,7 @@ func NewProxy(opts ...options.Option) proxy.Proxy {
} }
// routes cache // routes cache
p.Routes = make(map[string]map[uint64]table.Route) p.Routes = make(map[string]map[uint64]router.Route)
// watch router service routes // watch router service routes
p.errChan = make(chan error, 1) p.errChan = make(chan error, 1)

73
network/router/default.go
View File

@@ -8,7 +8,6 @@ import (
"sync" "sync"
"time" "time"
"github.com/micro/go-micro/network/router/table"
"github.com/micro/go-micro/registry" "github.com/micro/go-micro/registry"
) )
@@ -43,12 +42,12 @@ var (
// router implements default router // router implements default router
type router struct { type router struct {
// embed the table // embed the table
table.Table *Table
opts Options opts Options
status Status status Status
exit chan struct{} exit chan struct{}
errChan chan error errChan chan error
eventChan chan *table.Event eventChan chan *Event
advertChan chan *Advert advertChan chan *Advert
advertWg *sync.WaitGroup advertWg *sync.WaitGroup
wg *sync.WaitGroup wg *sync.WaitGroup
@@ -92,18 +91,18 @@ func (r *router) Options() Options {
} }
// manageRoute applies action on a given route // manageRoute applies action on a given route
func (r *router) manageRoute(route table.Route, action string) error { func (r *router) manageRoute(route Route, action string) error {
switch action { switch action {
case "create": case "create":
if err := r.Create(route); err != nil && err != table.ErrDuplicateRoute { if err := r.Create(route); err != nil && err != ErrDuplicateRoute {
return fmt.Errorf("failed adding route for service %s: %s", route.Service, err) return fmt.Errorf("failed adding route for service %s: %s", route.Service, err)
} }
case "update": case "update":
if err := r.Update(route); err != nil && err != table.ErrDuplicateRoute { if err := r.Update(route); err != nil && err != ErrDuplicateRoute {
return fmt.Errorf("failed updating route for service %s: %s", route.Service, err) return fmt.Errorf("failed updating route for service %s: %s", route.Service, err)
} }
case "delete": case "delete":
if err := r.Delete(route); err != nil && err != table.ErrRouteNotFound { if err := r.Delete(route); err != nil && err != ErrRouteNotFound {
return fmt.Errorf("failed deleting route for service %s: %s", route.Service, err) return fmt.Errorf("failed deleting route for service %s: %s", route.Service, err)
} }
default: default:
@@ -121,13 +120,13 @@ func (r *router) manageServiceRoutes(service *registry.Service, action string) e
// take route action on each service node // take route action on each service node
for _, node := range service.Nodes { for _, node := range service.Nodes {
route := table.Route{ route := Route{
Service: service.Name, Service: service.Name,
Address: node.Address, Address: node.Address,
Gateway: "", Gateway: "",
Network: r.opts.Network, Network: r.opts.Network,
Link: table.DefaultLink, Link: DefaultLink,
Metric: table.DefaultLocalMetric, Metric: DefaultLocalMetric,
} }
if err := r.manageRoute(route, action); err != nil { if err := r.manageRoute(route, action); err != nil {
@@ -197,7 +196,7 @@ func (r *router) watchRegistry(w registry.Watcher) error {
// watchTable watches routing table entries and either adds or deletes locally registered service to/from network registry // watchTable watches routing table entries and either adds or deletes locally registered service to/from network registry
// It returns error if the locally registered services either fails to be added/deleted to/from network registry. // It returns error if the locally registered services either fails to be added/deleted to/from network registry.
func (r *router) watchTable(w table.Watcher) error { func (r *router) watchTable(w Watcher) error {
// wait in the background for the router to stop // wait in the background for the router to stop
// when the router stops, stop the watcher and exit // when the router stops, stop the watcher and exit
r.wg.Add(1) r.wg.Add(1)
@@ -212,7 +211,7 @@ func (r *router) watchTable(w table.Watcher) error {
for { for {
event, err := w.Next() event, err := w.Next()
if err != nil { if err != nil {
if err != table.ErrWatcherStopped { if err != ErrWatcherStopped {
watchErr = err watchErr = err
} }
break break
@@ -234,7 +233,7 @@ func (r *router) watchTable(w table.Watcher) error {
// publishAdvert publishes router advert to advert channel // publishAdvert publishes router advert to advert channel
// NOTE: this might cease to be a dedicated method in the future // NOTE: this might cease to be a dedicated method in the future
func (r *router) publishAdvert(advType AdvertType, events []*table.Event) { func (r *router) publishAdvert(advType AdvertType, events []*Event) {
defer r.advertWg.Done() defer r.advertWg.Done()
a := &Advert{ a := &Advert{
@@ -266,10 +265,10 @@ func (r *router) advertiseTable() error {
return fmt.Errorf("failed listing routes: %s", err) return fmt.Errorf("failed listing routes: %s", err)
} }
// collect all the added routes before we attempt to add default gateway // collect all the added routes before we attempt to add default gateway
events := make([]*table.Event, len(routes)) events := make([]*Event, len(routes))
for i, route := range routes { for i, route := range routes {
event := &table.Event{ event := &Event{
Type: table.Update, Type: Update,
Timestamp: time.Now(), Timestamp: time.Now(),
Route: route, Route: route,
} }
@@ -279,7 +278,7 @@ func (r *router) advertiseTable() error {
// advertise all routes as Update events to subscribers // advertise all routes as Update events to subscribers
if len(events) > 0 { if len(events) > 0 {
r.advertWg.Add(1) r.advertWg.Add(1)
go r.publishAdvert(Update, events) go r.publishAdvert(RouteUpdate, events)
} }
case <-r.exit: case <-r.exit:
return nil return nil
@@ -289,7 +288,7 @@ func (r *router) advertiseTable() error {
// routeAdvert contains a list of route events to be advertised // routeAdvert contains a list of route events to be advertised
type routeAdvert struct { type routeAdvert struct {
events []*table.Event events []*Event
// lastUpdate records the time of the last advert update // lastUpdate records the time of the last advert update
lastUpdate time.Time lastUpdate time.Time
// penalty is current advert penalty // penalty is current advert penalty
@@ -326,7 +325,7 @@ func (r *router) advertiseEvents() error {
for { for {
select { select {
case <-ticker.C: case <-ticker.C:
var events []*table.Event var events []*Event
// collect all events which are not flapping // collect all events which are not flapping
for key, advert := range advertMap { for key, advert := range advertMap {
// decay the event penalty // decay the event penalty
@@ -352,7 +351,7 @@ func (r *router) advertiseEvents() error {
if !advert.isSuppressed { if !advert.isSuppressed {
for _, event := range advert.events { for _, event := range advert.events {
e := new(table.Event) e := new(Event)
*e = *event *e = *event
events = append(events, e) events = append(events, e)
// delete the advert from the advertMap // delete the advert from the advertMap
@@ -364,7 +363,7 @@ func (r *router) advertiseEvents() error {
// advertise all Update events to subscribers // advertise all Update events to subscribers
if len(events) > 0 { if len(events) > 0 {
r.advertWg.Add(1) r.advertWg.Add(1)
go r.publishAdvert(Update, events) go r.publishAdvert(RouteUpdate, events)
} }
case e := <-r.eventChan: case e := <-r.eventChan:
// if event is nil, continue // if event is nil, continue
@@ -375,9 +374,9 @@ func (r *router) advertiseEvents() error {
// determine the event penalty // determine the event penalty
var penalty float64 var penalty float64
switch e.Type { switch e.Type {
case table.Update: case Update:
penalty = UpdatePenalty penalty = UpdatePenalty
case table.Delete: case Delete:
penalty = DeletePenalty penalty = DeletePenalty
} }
@@ -386,7 +385,7 @@ func (r *router) advertiseEvents() error {
hash := e.Route.Hash() hash := e.Route.Hash()
advert, ok := advertMap[hash] advert, ok := advertMap[hash]
if !ok { if !ok {
events := []*table.Event{e} events := []*Event{e}
advert = &routeAdvert{ advert = &routeAdvert{
events: events, events: events,
penalty: penalty, penalty: penalty,
@@ -432,6 +431,9 @@ func (r *router) watchErrors() {
if r.status.Code != Stopped { if r.status.Code != Stopped {
// notify all goroutines to finish // notify all goroutines to finish
close(r.exit) close(r.exit)
// drain the advertise channel only if advertising
if r.status.Code == Advertising {
// drain the advertise channel // drain the advertise channel
for range r.advertChan { for range r.advertChan {
} }
@@ -440,13 +442,16 @@ func (r *router) watchErrors() {
} }
} }
// mark the router as Stopped and set its Error to nil
r.status = Status{Code: Stopped, Error: nil}
}
if err != nil { if err != nil {
r.status = Status{Code: Error, Error: err} r.status = Status{Code: Error, Error: err}
} }
} }
// Run runs the router. // Run runs the router.
// It returns error if the router is already running.
func (r *router) run() { func (r *router) run() {
r.Lock() r.Lock()
defer r.Unlock() defer r.Unlock()
@@ -462,12 +467,12 @@ func (r *router) run() {
// add default gateway into routing table // add default gateway into routing table
if r.opts.Gateway != "" { if r.opts.Gateway != "" {
// note, the only non-default value is the gateway // note, the only non-default value is the gateway
route := table.Route{ route := Route{
Service: "*", Service: "*",
Address: "*", Address: "*",
Gateway: r.opts.Gateway, Gateway: r.opts.Gateway,
Network: "*", Network: "*",
Metric: table.DefaultLocalMetric, Metric: DefaultLocalMetric,
} }
if err := r.Create(route); err != nil { if err := r.Create(route); err != nil {
r.status = Status{Code: Error, Error: fmt.Errorf("failed adding default gateway route: %s", err)} r.status = Status{Code: Error, Error: fmt.Errorf("failed adding default gateway route: %s", err)}
@@ -528,10 +533,10 @@ func (r *router) Advertise() (<-chan *Advert, error) {
return nil, fmt.Errorf("failed listing routes: %s", err) return nil, fmt.Errorf("failed listing routes: %s", err)
} }
// collect all the added routes before we attempt to add default gateway // collect all the added routes before we attempt to add default gateway
events := make([]*table.Event, len(routes)) events := make([]*Event, len(routes))
for i, route := range routes { for i, route := range routes {
event := &table.Event{ event := &Event{
Type: table.Create, Type: Create,
Timestamp: time.Now(), Timestamp: time.Now(),
Route: route, Route: route,
} }
@@ -540,7 +545,7 @@ func (r *router) Advertise() (<-chan *Advert, error) {
// create advertise and event channels // create advertise and event channels
r.advertChan = make(chan *Advert) r.advertChan = make(chan *Advert)
r.eventChan = make(chan *table.Event) r.eventChan = make(chan *Event)
// advertise your presence // advertise your presence
r.advertWg.Add(1) r.advertWg.Add(1)
@@ -580,7 +585,7 @@ func (r *router) Advertise() (<-chan *Advert, error) {
func (r *router) Process(a *Advert) error { func (r *router) Process(a *Advert) error {
// NOTE: event sorting might not be necessary // NOTE: event sorting might not be necessary
// copy update events intp new slices // copy update events intp new slices
events := make([]*table.Event, len(a.Events)) events := make([]*Event, len(a.Events))
copy(events, a.Events) copy(events, a.Events)
// sort events by timestamp // sort events by timestamp
sort.Slice(events, func(i, j int) bool { sort.Slice(events, func(i, j int) bool {
@@ -617,12 +622,16 @@ func (r *router) Stop() error {
if r.status.Code == Running || r.status.Code == Advertising { if r.status.Code == Running || r.status.Code == Advertising {
// notify all goroutines to finish // notify all goroutines to finish
close(r.exit) close(r.exit)
// drain the advertise channel only if advertising
if r.status.Code == Advertising {
// drain the advertise channel // drain the advertise channel
for range r.advertChan { for range r.advertChan {
} }
// drain the event channel // drain the event channel
for range r.eventChan { for range r.eventChan {
} }
}
// mark the router as Stopped and set its Error to nil // mark the router as Stopped and set its Error to nil
r.status = Status{Code: Stopped, Error: nil} r.status = Status{Code: Stopped, Error: nil}

9
network/router/options.go
View File

@@ -2,7 +2,6 @@ package router
import ( import (
"github.com/google/uuid" "github.com/google/uuid"
"github.com/micro/go-micro/network/router/table"
"github.com/micro/go-micro/registry" "github.com/micro/go-micro/registry"
) )
@@ -26,7 +25,7 @@ type Options struct {
// Registry is the local registry // Registry is the local registry
Registry registry.Registry Registry registry.Registry
// Table is routing table // Table is routing table
Table table.Table Table *Table
} }
// Id sets Router Id // Id sets Router Id
@@ -64,8 +63,8 @@ func Registry(r registry.Registry) Option {
} }
} }
// Table sets the routing table // RoutingTable sets the routing table
func Table(t table.Table) Option { func RoutingTable(t *Table) Option {
return func(o *Options) { return func(o *Options) {
o.Table = t o.Table = t
} }
@@ -78,6 +77,6 @@ func DefaultOptions() Options {
Address: DefaultAddress, Address: DefaultAddress,
Network: DefaultNetwork, Network: DefaultNetwork,
Registry: registry.DefaultRegistry, Registry: registry.DefaultRegistry,
Table: table.NewTable(), Table: NewTable(),
} }
} }

121
network/router/proto/router.micro.go
View File

@@ -1,5 +1,5 @@
// Code generated by protoc-gen-micro. DO NOT EDIT. // Code generated by protoc-gen-micro. DO NOT EDIT.
// source: go-micro/network/router/proto/router.proto // source: router.proto
package go_micro_router package go_micro_router
@@ -34,11 +34,14 @@ var _ server.Option
// Client API for Router service // Client API for Router service
type RouterService interface { type RouterService interface {
Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Router_WatchService, error)
Lookup(ctx context.Context, in *LookupRequest, opts ...client.CallOption) (*LookupResponse, error)
List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
Lookup(ctx context.Context, in *LookupRequest, opts ...client.CallOption) (*LookupResponse, error)
Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Router_WatchService, error)
Advertise(ctx context.Context, in *AdvertiseRequest, opts ...client.CallOption) (Router_AdvertiseService, error) Advertise(ctx context.Context, in *AdvertiseRequest, opts ...client.CallOption) (Router_AdvertiseService, error)
Process(ctx context.Context, in *Advert, opts ...client.CallOption) (*ProcessResponse, error) Process(ctx context.Context, in *Advert, opts ...client.CallOption) (*ProcessResponse, error)
Create(ctx context.Context, in *Route, opts ...client.CallOption) (*CreateResponse, error)
Delete(ctx context.Context, in *Route, opts ...client.CallOption) (*DeleteResponse, error)
Update(ctx context.Context, in *Route, opts ...client.CallOption) (*UpdateResponse, error)
} }
type routerService struct { type routerService struct {
@@ -59,6 +62,26 @@ func NewRouterService(name string, c client.Client) RouterService {
} }
} }
func (c *routerService) List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) {
req := c.c.NewRequest(c.name, "Router.List", in)
out := new(ListResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerService) Lookup(ctx context.Context, in *LookupRequest, opts ...client.CallOption) (*LookupResponse, error) {
req := c.c.NewRequest(c.name, "Router.Lookup", in)
out := new(LookupResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerService) Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Router_WatchService, error) { func (c *routerService) Watch(ctx context.Context, in *WatchRequest, opts ...client.CallOption) (Router_WatchService, error) {
req := c.c.NewRequest(c.name, "Router.Watch", &WatchRequest{}) req := c.c.NewRequest(c.name, "Router.Watch", &WatchRequest{})
stream, err := c.c.Stream(ctx, req, opts...) stream, err := c.c.Stream(ctx, req, opts...)
@@ -103,26 +126,6 @@ func (x *routerServiceWatch) Recv() (*Event, error) {
return m, nil return m, nil
} }
func (c *routerService) Lookup(ctx context.Context, in *LookupRequest, opts ...client.CallOption) (*LookupResponse, error) {
req := c.c.NewRequest(c.name, "Router.Lookup", in)
out := new(LookupResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerService) List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) {
req := c.c.NewRequest(c.name, "Router.List", in)
out := new(ListResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerService) Advertise(ctx context.Context, in *AdvertiseRequest, opts ...client.CallOption) (Router_AdvertiseService, error) { func (c *routerService) Advertise(ctx context.Context, in *AdvertiseRequest, opts ...client.CallOption) (Router_AdvertiseService, error) {
req := c.c.NewRequest(c.name, "Router.Advertise", &AdvertiseRequest{}) req := c.c.NewRequest(c.name, "Router.Advertise", &AdvertiseRequest{})
stream, err := c.c.Stream(ctx, req, opts...) stream, err := c.c.Stream(ctx, req, opts...)
@@ -177,23 +180,59 @@ func (c *routerService) Process(ctx context.Context, in *Advert, opts ...client.
return out, nil return out, nil
} }
func (c *routerService) Create(ctx context.Context, in *Route, opts ...client.CallOption) (*CreateResponse, error) {
req := c.c.NewRequest(c.name, "Router.Create", in)
out := new(CreateResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerService) Delete(ctx context.Context, in *Route, opts ...client.CallOption) (*DeleteResponse, error) {
req := c.c.NewRequest(c.name, "Router.Delete", in)
out := new(DeleteResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerService) Update(ctx context.Context, in *Route, opts ...client.CallOption) (*UpdateResponse, error) {
req := c.c.NewRequest(c.name, "Router.Update", in)
out := new(UpdateResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for Router service // Server API for Router service
type RouterHandler interface { type RouterHandler interface {
Watch(context.Context, *WatchRequest, Router_WatchStream) error
Lookup(context.Context, *LookupRequest, *LookupResponse) error
List(context.Context, *ListRequest, *ListResponse) error List(context.Context, *ListRequest, *ListResponse) error
Lookup(context.Context, *LookupRequest, *LookupResponse) error
Watch(context.Context, *WatchRequest, Router_WatchStream) error
Advertise(context.Context, *AdvertiseRequest, Router_AdvertiseStream) error Advertise(context.Context, *AdvertiseRequest, Router_AdvertiseStream) error
Process(context.Context, *Advert, *ProcessResponse) error Process(context.Context, *Advert, *ProcessResponse) error
Create(context.Context, *Route, *CreateResponse) error
Delete(context.Context, *Route, *DeleteResponse) error
Update(context.Context, *Route, *UpdateResponse) error
} }
func RegisterRouterHandler(s server.Server, hdlr RouterHandler, opts ...server.HandlerOption) error { func RegisterRouterHandler(s server.Server, hdlr RouterHandler, opts ...server.HandlerOption) error {
type router interface { type router interface {
Watch(ctx context.Context, stream server.Stream) error
Lookup(ctx context.Context, in *LookupRequest, out *LookupResponse) error
List(ctx context.Context, in *ListRequest, out *ListResponse) error List(ctx context.Context, in *ListRequest, out *ListResponse) error
Lookup(ctx context.Context, in *LookupRequest, out *LookupResponse) error
Watch(ctx context.Context, stream server.Stream) error
Advertise(ctx context.Context, stream server.Stream) error Advertise(ctx context.Context, stream server.Stream) error
Process(ctx context.Context, in *Advert, out *ProcessResponse) error Process(ctx context.Context, in *Advert, out *ProcessResponse) error
Create(ctx context.Context, in *Route, out *CreateResponse) error
Delete(ctx context.Context, in *Route, out *DeleteResponse) error
Update(ctx context.Context, in *Route, out *UpdateResponse) error
} }
type Router struct { type Router struct {
router router
@@ -206,6 +245,14 @@ type routerHandler struct {
RouterHandler RouterHandler
} }
func (h *routerHandler) List(ctx context.Context, in *ListRequest, out *ListResponse) error {
return h.RouterHandler.List(ctx, in, out)
}
func (h *routerHandler) Lookup(ctx context.Context, in *LookupRequest, out *LookupResponse) error {
return h.RouterHandler.Lookup(ctx, in, out)
}
func (h *routerHandler) Watch(ctx context.Context, stream server.Stream) error { func (h *routerHandler) Watch(ctx context.Context, stream server.Stream) error {
m := new(WatchRequest) m := new(WatchRequest)
if err := stream.Recv(m); err != nil { if err := stream.Recv(m); err != nil {
@@ -241,14 +288,6 @@ func (x *routerWatchStream) Send(m *Event) error {
return x.stream.Send(m) return x.stream.Send(m)
} }
func (h *routerHandler) Lookup(ctx context.Context, in *LookupRequest, out *LookupResponse) error {
return h.RouterHandler.Lookup(ctx, in, out)
}
func (h *routerHandler) List(ctx context.Context, in *ListRequest, out *ListResponse) error {
return h.RouterHandler.List(ctx, in, out)
}
func (h *routerHandler) Advertise(ctx context.Context, stream server.Stream) error { func (h *routerHandler) Advertise(ctx context.Context, stream server.Stream) error {
m := new(AdvertiseRequest) m := new(AdvertiseRequest)
if err := stream.Recv(m); err != nil { if err := stream.Recv(m); err != nil {
@@ -287,3 +326,15 @@ func (x *routerAdvertiseStream) Send(m *Advert) error {
func (h *routerHandler) Process(ctx context.Context, in *Advert, out *ProcessResponse) error { func (h *routerHandler) Process(ctx context.Context, in *Advert, out *ProcessResponse) error {
return h.RouterHandler.Process(ctx, in, out) return h.RouterHandler.Process(ctx, in, out)
} }
func (h *routerHandler) Create(ctx context.Context, in *Route, out *CreateResponse) error {
return h.RouterHandler.Create(ctx, in, out)
}
func (h *routerHandler) Delete(ctx context.Context, in *Route, out *DeleteResponse) error {
return h.RouterHandler.Delete(ctx, in, out)
}
func (h *routerHandler) Update(ctx context.Context, in *Route, out *UpdateResponse) error {
return h.RouterHandler.Update(ctx, in, out)
}

630
network/router/proto/router.pb.go
View File

@@ -1,13 +1,11 @@
// Code generated by protoc-gen-go. DO NOT EDIT. // Code generated by protoc-gen-go. DO NOT EDIT.
// source: go-micro/network/router/proto/router.proto // source: router.proto
package go_micro_router package go_micro_router
import ( import (
context "context"
fmt "fmt" fmt "fmt"
proto "github.com/golang/protobuf/proto" proto "github.com/golang/protobuf/proto"
grpc "google.golang.org/grpc"
math "math" math "math"
) )
@@ -45,7 +43,7 @@ func (x AdvertType) String() string {
} }
func (AdvertType) EnumDescriptor() ([]byte, []int) { func (AdvertType) EnumDescriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{0} return fileDescriptor_367072455c71aedc, []int{0}
} }
// EventType defines the type of event // EventType defines the type of event
@@ -74,7 +72,79 @@ func (x EventType) String() string {
} }
func (EventType) EnumDescriptor() ([]byte, []int) { func (EventType) EnumDescriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{1} return fileDescriptor_367072455c71aedc, []int{1}
}
// ListRequest is made to List routes
type ListRequest struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ListRequest) Reset() { *m = ListRequest{} }
func (m *ListRequest) String() string { return proto.CompactTextString(m) }
func (*ListRequest) ProtoMessage() {}
func (*ListRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_367072455c71aedc, []int{0}
}
func (m *ListRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ListRequest.Unmarshal(m, b)
}
func (m *ListRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ListRequest.Marshal(b, m, deterministic)
}
func (m *ListRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_ListRequest.Merge(m, src)
}
func (m *ListRequest) XXX_Size() int {
return xxx_messageInfo_ListRequest.Size(m)
}
func (m *ListRequest) XXX_DiscardUnknown() {
xxx_messageInfo_ListRequest.DiscardUnknown(m)
}
var xxx_messageInfo_ListRequest proto.InternalMessageInfo
// ListResponse is returned by List
type ListResponse struct {
Routes []*Route `protobuf:"bytes,1,rep,name=routes,proto3" json:"routes,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ListResponse) Reset() { *m = ListResponse{} }
func (m *ListResponse) String() string { return proto.CompactTextString(m) }
func (*ListResponse) ProtoMessage() {}
func (*ListResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_367072455c71aedc, []int{1}
}
func (m *ListResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ListResponse.Unmarshal(m, b)
}
func (m *ListResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ListResponse.Marshal(b, m, deterministic)
}
func (m *ListResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_ListResponse.Merge(m, src)
}
func (m *ListResponse) XXX_Size() int {
return xxx_messageInfo_ListResponse.Size(m)
}
func (m *ListResponse) XXX_DiscardUnknown() {
xxx_messageInfo_ListResponse.DiscardUnknown(m)
}
var xxx_messageInfo_ListResponse proto.InternalMessageInfo
func (m *ListResponse) GetRoutes() []*Route {
if m != nil {
return m.Routes
}
return nil
} }
// LookupRequest is made to Lookup // LookupRequest is made to Lookup
@@ -89,7 +159,7 @@ func (m *LookupRequest) Reset() { *m = LookupRequest{} }
func (m *LookupRequest) String() string { return proto.CompactTextString(m) } func (m *LookupRequest) String() string { return proto.CompactTextString(m) }
func (*LookupRequest) ProtoMessage() {} func (*LookupRequest) ProtoMessage() {}
func (*LookupRequest) Descriptor() ([]byte, []int) { func (*LookupRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{0} return fileDescriptor_367072455c71aedc, []int{2}
} }
func (m *LookupRequest) XXX_Unmarshal(b []byte) error { func (m *LookupRequest) XXX_Unmarshal(b []byte) error {
@@ -129,7 +199,7 @@ func (m *LookupResponse) Reset() { *m = LookupResponse{} }
func (m *LookupResponse) String() string { return proto.CompactTextString(m) } func (m *LookupResponse) String() string { return proto.CompactTextString(m) }
func (*LookupResponse) ProtoMessage() {} func (*LookupResponse) ProtoMessage() {}
func (*LookupResponse) Descriptor() ([]byte, []int) { func (*LookupResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{1} return fileDescriptor_367072455c71aedc, []int{3}
} }
func (m *LookupResponse) XXX_Unmarshal(b []byte) error { func (m *LookupResponse) XXX_Unmarshal(b []byte) error {
@@ -168,7 +238,7 @@ func (m *WatchRequest) Reset() { *m = WatchRequest{} }
func (m *WatchRequest) String() string { return proto.CompactTextString(m) } func (m *WatchRequest) String() string { return proto.CompactTextString(m) }
func (*WatchRequest) ProtoMessage() {} func (*WatchRequest) ProtoMessage() {}
func (*WatchRequest) Descriptor() ([]byte, []int) { func (*WatchRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{2} return fileDescriptor_367072455c71aedc, []int{4}
} }
func (m *WatchRequest) XXX_Unmarshal(b []byte) error { func (m *WatchRequest) XXX_Unmarshal(b []byte) error {
@@ -200,7 +270,7 @@ func (m *AdvertiseRequest) Reset() { *m = AdvertiseRequest{} }
func (m *AdvertiseRequest) String() string { return proto.CompactTextString(m) } func (m *AdvertiseRequest) String() string { return proto.CompactTextString(m) }
func (*AdvertiseRequest) ProtoMessage() {} func (*AdvertiseRequest) ProtoMessage() {}
func (*AdvertiseRequest) Descriptor() ([]byte, []int) { func (*AdvertiseRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{3} return fileDescriptor_367072455c71aedc, []int{5}
} }
func (m *AdvertiseRequest) XXX_Unmarshal(b []byte) error { func (m *AdvertiseRequest) XXX_Unmarshal(b []byte) error {
@@ -242,7 +312,7 @@ func (m *Advert) Reset() { *m = Advert{} }
func (m *Advert) String() string { return proto.CompactTextString(m) } func (m *Advert) String() string { return proto.CompactTextString(m) }
func (*Advert) ProtoMessage() {} func (*Advert) ProtoMessage() {}
func (*Advert) Descriptor() ([]byte, []int) { func (*Advert) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{4} return fileDescriptor_367072455c71aedc, []int{6}
} }
func (m *Advert) XXX_Unmarshal(b []byte) error { func (m *Advert) XXX_Unmarshal(b []byte) error {
@@ -309,7 +379,7 @@ func (m *ProcessResponse) Reset() { *m = ProcessResponse{} }
func (m *ProcessResponse) String() string { return proto.CompactTextString(m) } func (m *ProcessResponse) String() string { return proto.CompactTextString(m) }
func (*ProcessResponse) ProtoMessage() {} func (*ProcessResponse) ProtoMessage() {}
func (*ProcessResponse) Descriptor() ([]byte, []int) { func (*ProcessResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{5} return fileDescriptor_367072455c71aedc, []int{7}
} }
func (m *ProcessResponse) XXX_Unmarshal(b []byte) error { func (m *ProcessResponse) XXX_Unmarshal(b []byte) error {
@@ -330,6 +400,102 @@ func (m *ProcessResponse) XXX_DiscardUnknown() {
var xxx_messageInfo_ProcessResponse proto.InternalMessageInfo var xxx_messageInfo_ProcessResponse proto.InternalMessageInfo
// CreateResponse is returned by Create
type CreateResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *CreateResponse) Reset() { *m = CreateResponse{} }
func (m *CreateResponse) String() string { return proto.CompactTextString(m) }
func (*CreateResponse) ProtoMessage() {}
func (*CreateResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_367072455c71aedc, []int{8}
}
func (m *CreateResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_CreateResponse.Unmarshal(m, b)
}
func (m *CreateResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_CreateResponse.Marshal(b, m, deterministic)
}
func (m *CreateResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_CreateResponse.Merge(m, src)
}
func (m *CreateResponse) XXX_Size() int {
return xxx_messageInfo_CreateResponse.Size(m)
}
func (m *CreateResponse) XXX_DiscardUnknown() {
xxx_messageInfo_CreateResponse.DiscardUnknown(m)
}
var xxx_messageInfo_CreateResponse proto.InternalMessageInfo
// DeleteResponse is returned by Delete
type DeleteResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *DeleteResponse) Reset() { *m = DeleteResponse{} }
func (m *DeleteResponse) String() string { return proto.CompactTextString(m) }
func (*DeleteResponse) ProtoMessage() {}
func (*DeleteResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_367072455c71aedc, []int{9}
}
func (m *DeleteResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_DeleteResponse.Unmarshal(m, b)
}
func (m *DeleteResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_DeleteResponse.Marshal(b, m, deterministic)
}
func (m *DeleteResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_DeleteResponse.Merge(m, src)
}
func (m *DeleteResponse) XXX_Size() int {
return xxx_messageInfo_DeleteResponse.Size(m)
}
func (m *DeleteResponse) XXX_DiscardUnknown() {
xxx_messageInfo_DeleteResponse.DiscardUnknown(m)
}
var xxx_messageInfo_DeleteResponse proto.InternalMessageInfo
// UpdateResponse is returned by Update
type UpdateResponse struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *UpdateResponse) Reset() { *m = UpdateResponse{} }
func (m *UpdateResponse) String() string { return proto.CompactTextString(m) }
func (*UpdateResponse) ProtoMessage() {}
func (*UpdateResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_367072455c71aedc, []int{10}
}
func (m *UpdateResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_UpdateResponse.Unmarshal(m, b)
}
func (m *UpdateResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_UpdateResponse.Marshal(b, m, deterministic)
}
func (m *UpdateResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_UpdateResponse.Merge(m, src)
}
func (m *UpdateResponse) XXX_Size() int {
return xxx_messageInfo_UpdateResponse.Size(m)
}
func (m *UpdateResponse) XXX_DiscardUnknown() {
xxx_messageInfo_UpdateResponse.DiscardUnknown(m)
}
var xxx_messageInfo_UpdateResponse proto.InternalMessageInfo
// Event is routing table event // Event is routing table event
type Event struct { type Event struct {
// type of event // type of event
@@ -347,7 +513,7 @@ func (m *Event) Reset() { *m = Event{} }
func (m *Event) String() string { return proto.CompactTextString(m) } func (m *Event) String() string { return proto.CompactTextString(m) }
func (*Event) ProtoMessage() {} func (*Event) ProtoMessage() {}
func (*Event) Descriptor() ([]byte, []int) { func (*Event) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{6} return fileDescriptor_367072455c71aedc, []int{11}
} }
func (m *Event) XXX_Unmarshal(b []byte) error { func (m *Event) XXX_Unmarshal(b []byte) error {
@@ -389,82 +555,14 @@ func (m *Event) GetRoute() *Route {
return nil return nil
} }
// ListRequest is made to List routes
type ListRequest struct {
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ListRequest) Reset() { *m = ListRequest{} }
func (m *ListRequest) String() string { return proto.CompactTextString(m) }
func (*ListRequest) ProtoMessage() {}
func (*ListRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{7}
}
func (m *ListRequest) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ListRequest.Unmarshal(m, b)
}
func (m *ListRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ListRequest.Marshal(b, m, deterministic)
}
func (m *ListRequest) XXX_Merge(src proto.Message) {
xxx_messageInfo_ListRequest.Merge(m, src)
}
func (m *ListRequest) XXX_Size() int {
return xxx_messageInfo_ListRequest.Size(m)
}
func (m *ListRequest) XXX_DiscardUnknown() {
xxx_messageInfo_ListRequest.DiscardUnknown(m)
}
var xxx_messageInfo_ListRequest proto.InternalMessageInfo
// ListResponse is returned by List
type ListResponse struct {
Routes []*Route `protobuf:"bytes,1,rep,name=routes,proto3" json:"routes,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ListResponse) Reset() { *m = ListResponse{} }
func (m *ListResponse) String() string { return proto.CompactTextString(m) }
func (*ListResponse) ProtoMessage() {}
func (*ListResponse) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{8}
}
func (m *ListResponse) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_ListResponse.Unmarshal(m, b)
}
func (m *ListResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_ListResponse.Marshal(b, m, deterministic)
}
func (m *ListResponse) XXX_Merge(src proto.Message) {
xxx_messageInfo_ListResponse.Merge(m, src)
}
func (m *ListResponse) XXX_Size() int {
return xxx_messageInfo_ListResponse.Size(m)
}
func (m *ListResponse) XXX_DiscardUnknown() {
xxx_messageInfo_ListResponse.DiscardUnknown(m)
}
var xxx_messageInfo_ListResponse proto.InternalMessageInfo
func (m *ListResponse) GetRoutes() []*Route {
if m != nil {
return m.Routes
}
return nil
}
// Query is passed in a LookupRequest // Query is passed in a LookupRequest
type Query struct { type Query struct {
// service to lookup // service to lookup
Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"` Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
// gateway to lookup
Gateway string `protobuf:"bytes,2,opt,name=gateway,proto3" json:"gateway,omitempty"`
// network to lookup
Network string `protobuf:"bytes,3,opt,name=network,proto3" json:"network,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"` XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"` XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"` XXX_sizecache int32 `json:"-"`
@@ -474,7 +572,7 @@ func (m *Query) Reset() { *m = Query{} }
func (m *Query) String() string { return proto.CompactTextString(m) } func (m *Query) String() string { return proto.CompactTextString(m) }
func (*Query) ProtoMessage() {} func (*Query) ProtoMessage() {}
func (*Query) Descriptor() ([]byte, []int) { func (*Query) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{9} return fileDescriptor_367072455c71aedc, []int{12}
} }
func (m *Query) XXX_Unmarshal(b []byte) error { func (m *Query) XXX_Unmarshal(b []byte) error {
@@ -502,6 +600,20 @@ func (m *Query) GetService() string {
return "" return ""
} }
func (m *Query) GetGateway() string {
if m != nil {
return m.Gateway
}
return ""
}
func (m *Query) GetNetwork() string {
if m != nil {
return m.Network
}
return ""
}
// Route is a service route // Route is a service route
type Route struct { type Route struct {
// service for the route // service for the route
@@ -525,7 +637,7 @@ func (m *Route) Reset() { *m = Route{} }
func (m *Route) String() string { return proto.CompactTextString(m) } func (m *Route) String() string { return proto.CompactTextString(m) }
func (*Route) ProtoMessage() {} func (*Route) ProtoMessage() {}
func (*Route) Descriptor() ([]byte, []int) { func (*Route) Descriptor() ([]byte, []int) {
return fileDescriptor_fc08514fc6dadd29, []int{10} return fileDescriptor_367072455c71aedc, []int{13}
} }
func (m *Route) XXX_Unmarshal(b []byte) error { func (m *Route) XXX_Unmarshal(b []byte) error {
@@ -591,317 +703,61 @@ func (m *Route) GetMetric() int64 {
func init() { func init() {
proto.RegisterEnum("go.micro.router.AdvertType", AdvertType_name, AdvertType_value) proto.RegisterEnum("go.micro.router.AdvertType", AdvertType_name, AdvertType_value)
proto.RegisterEnum("go.micro.router.EventType", EventType_name, EventType_value) proto.RegisterEnum("go.micro.router.EventType", EventType_name, EventType_value)
proto.RegisterType((*ListRequest)(nil), "go.micro.router.ListRequest")
proto.RegisterType((*ListResponse)(nil), "go.micro.router.ListResponse")
proto.RegisterType((*LookupRequest)(nil), "go.micro.router.LookupRequest") proto.RegisterType((*LookupRequest)(nil), "go.micro.router.LookupRequest")
proto.RegisterType((*LookupResponse)(nil), "go.micro.router.LookupResponse") proto.RegisterType((*LookupResponse)(nil), "go.micro.router.LookupResponse")
proto.RegisterType((*WatchRequest)(nil), "go.micro.router.WatchRequest") proto.RegisterType((*WatchRequest)(nil), "go.micro.router.WatchRequest")
proto.RegisterType((*AdvertiseRequest)(nil), "go.micro.router.AdvertiseRequest") proto.RegisterType((*AdvertiseRequest)(nil), "go.micro.router.AdvertiseRequest")
proto.RegisterType((*Advert)(nil), "go.micro.router.Advert") proto.RegisterType((*Advert)(nil), "go.micro.router.Advert")
proto.RegisterType((*ProcessResponse)(nil), "go.micro.router.ProcessResponse") proto.RegisterType((*ProcessResponse)(nil), "go.micro.router.ProcessResponse")
proto.RegisterType((*CreateResponse)(nil), "go.micro.router.CreateResponse")
proto.RegisterType((*DeleteResponse)(nil), "go.micro.router.DeleteResponse")
proto.RegisterType((*UpdateResponse)(nil), "go.micro.router.UpdateResponse")
proto.RegisterType((*Event)(nil), "go.micro.router.Event") proto.RegisterType((*Event)(nil), "go.micro.router.Event")
proto.RegisterType((*ListRequest)(nil), "go.micro.router.ListRequest")
proto.RegisterType((*ListResponse)(nil), "go.micro.router.ListResponse")
proto.RegisterType((*Query)(nil), "go.micro.router.Query") proto.RegisterType((*Query)(nil), "go.micro.router.Query")
proto.RegisterType((*Route)(nil), "go.micro.router.Route") proto.RegisterType((*Route)(nil), "go.micro.router.Route")
} }
func init() { func init() { proto.RegisterFile("router.proto", fileDescriptor_367072455c71aedc) }
proto.RegisterFile("go-micro/network/router/proto/router.proto", fileDescriptor_fc08514fc6dadd29)
}
var fileDescriptor_fc08514fc6dadd29 = []byte{ var fileDescriptor_367072455c71aedc = []byte{
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// Reference imports to suppress errors if they are not otherwise used.
var _ context.Context
var _ grpc.ClientConn
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
const _ = grpc.SupportPackageIsVersion4
// RouterClient is the client API for Router service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
type RouterClient interface {
Watch(ctx context.Context, in *WatchRequest, opts ...grpc.CallOption) (Router_WatchClient, error)
Lookup(ctx context.Context, in *LookupRequest, opts ...grpc.CallOption) (*LookupResponse, error)
List(ctx context.Context, in *ListRequest, opts ...grpc.CallOption) (*ListResponse, error)
Advertise(ctx context.Context, in *AdvertiseRequest, opts ...grpc.CallOption) (Router_AdvertiseClient, error)
Process(ctx context.Context, in *Advert, opts ...grpc.CallOption) (*ProcessResponse, error)
}
type routerClient struct {
cc *grpc.ClientConn
}
func NewRouterClient(cc *grpc.ClientConn) RouterClient {
return &routerClient{cc}
}
func (c *routerClient) Watch(ctx context.Context, in *WatchRequest, opts ...grpc.CallOption) (Router_WatchClient, error) {
stream, err := c.cc.NewStream(ctx, &_Router_serviceDesc.Streams[0], "/go.micro.router.Router/Watch", opts...)
if err != nil {
return nil, err
}
x := &routerWatchClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type Router_WatchClient interface {
Recv() (*Event, error)
grpc.ClientStream
}
type routerWatchClient struct {
grpc.ClientStream
}
func (x *routerWatchClient) Recv() (*Event, error) {
m := new(Event)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
func (c *routerClient) Lookup(ctx context.Context, in *LookupRequest, opts ...grpc.CallOption) (*LookupResponse, error) {
out := new(LookupResponse)
err := c.cc.Invoke(ctx, "/go.micro.router.Router/Lookup", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerClient) List(ctx context.Context, in *ListRequest, opts ...grpc.CallOption) (*ListResponse, error) {
out := new(ListResponse)
err := c.cc.Invoke(ctx, "/go.micro.router.Router/List", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *routerClient) Advertise(ctx context.Context, in *AdvertiseRequest, opts ...grpc.CallOption) (Router_AdvertiseClient, error) {
stream, err := c.cc.NewStream(ctx, &_Router_serviceDesc.Streams[1], "/go.micro.router.Router/Advertise", opts...)
if err != nil {
return nil, err
}
x := &routerAdvertiseClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type Router_AdvertiseClient interface {
Recv() (*Advert, error)
grpc.ClientStream
}
type routerAdvertiseClient struct {
grpc.ClientStream
}
func (x *routerAdvertiseClient) Recv() (*Advert, error) {
m := new(Advert)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
func (c *routerClient) Process(ctx context.Context, in *Advert, opts ...grpc.CallOption) (*ProcessResponse, error) {
out := new(ProcessResponse)
err := c.cc.Invoke(ctx, "/go.micro.router.Router/Process", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// RouterServer is the server API for Router service.
type RouterServer interface {
Watch(*WatchRequest, Router_WatchServer) error
Lookup(context.Context, *LookupRequest) (*LookupResponse, error)
List(context.Context, *ListRequest) (*ListResponse, error)
Advertise(*AdvertiseRequest, Router_AdvertiseServer) error
Process(context.Context, *Advert) (*ProcessResponse, error)
}
func RegisterRouterServer(s *grpc.Server, srv RouterServer) {
s.RegisterService(&_Router_serviceDesc, srv)
}
func _Router_Watch_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(WatchRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(RouterServer).Watch(m, &routerWatchServer{stream})
}
type Router_WatchServer interface {
Send(*Event) error
grpc.ServerStream
}
type routerWatchServer struct {
grpc.ServerStream
}
func (x *routerWatchServer) Send(m *Event) error {
return x.ServerStream.SendMsg(m)
}
func _Router_Lookup_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(LookupRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RouterServer).Lookup(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.router.Router/Lookup",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RouterServer).Lookup(ctx, req.(*LookupRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Router_List_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ListRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RouterServer).List(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.router.Router/List",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RouterServer).List(ctx, req.(*ListRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Router_Advertise_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(AdvertiseRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(RouterServer).Advertise(m, &routerAdvertiseServer{stream})
}
type Router_AdvertiseServer interface {
Send(*Advert) error
grpc.ServerStream
}
type routerAdvertiseServer struct {
grpc.ServerStream
}
func (x *routerAdvertiseServer) Send(m *Advert) error {
return x.ServerStream.SendMsg(m)
}
func _Router_Process_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(Advert)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(RouterServer).Process(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/go.micro.router.Router/Process",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(RouterServer).Process(ctx, req.(*Advert))
}
return interceptor(ctx, in, info, handler)
}
var _Router_serviceDesc = grpc.ServiceDesc{
ServiceName: "go.micro.router.Router",
HandlerType: (*RouterServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "Lookup",
Handler: _Router_Lookup_Handler,
},
{
MethodName: "List",
Handler: _Router_List_Handler,
},
{
MethodName: "Process",
Handler: _Router_Process_Handler,
},
},
Streams: []grpc.StreamDesc{
{
StreamName: "Watch",
Handler: _Router_Watch_Handler,
ServerStreams: true,
},
{
StreamName: "Advertise",
Handler: _Router_Advertise_Handler,
ServerStreams: true,
},
},
Metadata: "go-micro/network/router/proto/router.proto",
} }

37
network/router/proto/router.proto
View File

@@ -4,11 +4,22 @@ package go.micro.router;
// Router service is used by the proxy to lookup routes // Router service is used by the proxy to lookup routes
service Router { service Router {
rpc Watch(WatchRequest) returns (stream Event) {};
rpc Lookup(LookupRequest) returns (LookupResponse) {};
rpc List(ListRequest) returns (ListResponse) {}; rpc List(ListRequest) returns (ListResponse) {};
rpc Lookup(LookupRequest) returns (LookupResponse) {};
rpc Watch(WatchRequest) returns (stream Event) {};
rpc Advertise(AdvertiseRequest) returns (stream Advert) {}; rpc Advertise(AdvertiseRequest) returns (stream Advert) {};
rpc Process(Advert) returns (ProcessResponse) {}; rpc Process(Advert) returns (ProcessResponse) {};
rpc Create(Route) returns (CreateResponse) {};
rpc Delete(Route) returns (DeleteResponse) {};
rpc Update(Route) returns (UpdateResponse) {};
}
// ListRequest is made to List routes
message ListRequest {}
// ListResponse is returned by List
message ListResponse {
repeated Route routes = 1;
} }
// LookupRequest is made to Lookup // LookupRequest is made to Lookup
@@ -24,7 +35,6 @@ message LookupResponse {
// WatchRequest is made to Watch Router // WatchRequest is made to Watch Router
message WatchRequest {} message WatchRequest {}
// AdvertiseRequest request a stream of Adverts // AdvertiseRequest request a stream of Adverts
message AdvertiseRequest {} message AdvertiseRequest {}
@@ -51,6 +61,15 @@ message Advert {
// ProcessResponse is returned by Process // ProcessResponse is returned by Process
message ProcessResponse {} message ProcessResponse {}
// CreateResponse is returned by Create
message CreateResponse {}
// DeleteResponse is returned by Delete
message DeleteResponse {}
// UpdateResponse is returned by Update
message UpdateResponse {}
// EventType defines the type of event // EventType defines the type of event
enum EventType { enum EventType {
Create = 0; Create = 0;
@@ -68,18 +87,14 @@ message Event {
Route route = 3; Route route = 3;
} }
// ListRequest is made to List routes
message ListRequest {}
// ListResponse is returned by List
message ListResponse {
repeated Route routes = 1;
}
// Query is passed in a LookupRequest // Query is passed in a LookupRequest
message Query { message Query {
// service to lookup // service to lookup
string service = 1; string service = 1;
// gateway to lookup
string gateway = 2;
// network to lookup
string network = 3;
} }
// Route is a service route // Route is a service route

36
network/router/table/query.go → network/router/query.go
View File

@@ -1,26 +1,4 @@
package table package router
// LookupPolicy defines query policy
type LookupPolicy int
const (
// DiscardIfNone discards query when no route is found
DiscardIfNone LookupPolicy = iota
// ClosestMatch returns closest match to supplied query
ClosestMatch
)
// String returns human representation of LookupPolicy
func (lp LookupPolicy) String() string {
switch lp {
case DiscardIfNone:
return "DISCARD"
case ClosestMatch:
return "CLOSEST"
default:
return "UNKNOWN"
}
}
// QueryOption sets routing table query options // QueryOption sets routing table query options
type QueryOption func(*QueryOptions) type QueryOption func(*QueryOptions)
@@ -33,8 +11,6 @@ type QueryOptions struct {
Gateway string Gateway string
// Network is network address // Network is network address
Network string Network string
// Policy is query lookup policy
Policy LookupPolicy
} }
// QueryService sets destination address // QueryService sets destination address
@@ -58,14 +34,6 @@ func QueryNetwork(n string) QueryOption {
} }
} }
// QueryPolicy sets query policy
// NOTE: this might be renamed to filter or some such
func QueryPolicy(p LookupPolicy) QueryOption {
return func(o *QueryOptions) {
o.Policy = p
}
}
// Query is routing table query // Query is routing table query
type Query interface { type Query interface {
// Options returns query options // Options returns query options
@@ -80,12 +48,10 @@ type query struct {
// NewQuery creates new query and returns it // NewQuery creates new query and returns it
func NewQuery(opts ...QueryOption) Query { func NewQuery(opts ...QueryOption) Query {
// default options // default options
// NOTE: by default we use DefaultNetworkMetric
qopts := QueryOptions{ qopts := QueryOptions{
Service: "*", Service: "*",
Gateway: "*", Gateway: "*",
Network: "*", Network: "*",
Policy: DiscardIfNone,
} }
for _, o := range opts { for _, o := range opts {

2
network/router/table/route.go → network/router/route.go
View File

@@ -1,4 +1,4 @@
package table package router
import ( import (
"hash/fnv" "hash/fnv"

24
network/router/route_test.go Normal file
View File

@@ -0,0 +1,24 @@
package router
import "testing"
func TestHash(t *testing.T) {
route1 := Route{
Service: "dest.svc",
Gateway: "dest.gw",
Network: "dest.network",
Link: "det.link",
Metric: 10,
}
// make a copy
route2 := route1
route1Hash := route1.Hash()
route2Hash := route2.Hash()
// we should get the same hash
if route1Hash != route2Hash {
t.Errorf("identical routes result in different hashes")
}
}

51
network/router/router.go
View File

@@ -3,19 +3,17 @@ package router
import ( import (
"time" "time"
"github.com/micro/go-micro/network/router/table"
) )
var ( var (
// DefaultRouter is default network router // DefaultRouter is default network router
DefaultRouter = NewRouter() DefaultRouter = NewRouter()
// DefaultName is default router service name
DefaultName = "go.micro.router"
) )
// Router is an interface for a routing control plane // Router is an interface for a routing control plane
type Router interface { type Router interface {
// Router provides a routing table
table.Table
// Init initializes the router with options // Init initializes the router with options
Init(...Option) error Init(...Option) error
// Options returns the router options // Options returns the router options
@@ -24,6 +22,18 @@ type Router interface {
Advertise() (<-chan *Advert, error) Advertise() (<-chan *Advert, error)
// Process processes incoming adverts // Process processes incoming adverts
Process(*Advert) error Process(*Advert) error
// Create new route in the routing table
Create(Route) error
// Delete existing route from the routing table
Delete(Route) error
// Update exiting route in the routing table
Update(Route) error
// List lists all routes in the routing table
List() ([]Route, error)
// Lookup queries routes in the routing table
Lookup(Query) ([]Route, error)
// Watch returns a watcher which tracks updates to the routing table
Watch(opts ...WatchOption) (Watcher, error)
// Status returns router status // Status returns router status
Status() Status Status() Status
// Stop stops the router // Stop stops the router
@@ -49,6 +59,21 @@ const (
Error Error
) )
func (s StatusCode) String() string {
switch s {
case Running:
return "running"
case Advertising:
return "advertising"
case Stopped:
return "stopped"
case Error:
return "error"
default:
return "unknown"
}
}
// Status is router status // Status is router status
type Status struct { type Status struct {
// Error is router error // Error is router error
@@ -63,10 +88,22 @@ type AdvertType int
const ( const (
// Announce is advertised when the router announces itself // Announce is advertised when the router announces itself
Announce AdvertType = iota Announce AdvertType = iota
// Update advertises route updates // RouteUpdate advertises route updates
Update RouteUpdate
) )
// String returns human readable advertisement type
func (t AdvertType) String() string {
switch t {
case Announce:
return "announce"
case RouteUpdate:
return "update"
default:
return "unknown"
}
}
// Advert contains a list of events advertised by the router to the network // Advert contains a list of events advertised by the router to the network
type Advert struct { type Advert struct {
// Id is the router Id // Id is the router Id
@@ -78,7 +115,7 @@ type Advert struct {
// TTL is Advert TTL // TTL is Advert TTL
TTL time.Duration TTL time.Duration
// Events is a list of routing table events to advertise // Events is a list of routing table events to advertise
Events []*table.Event Events []*Event
} }
// NewRouter creates new Router and returns it // NewRouter creates new Router and returns it

493
network/router/service/service.go Normal file
View File

@@ -0,0 +1,493 @@
package service
import (
"context"
"fmt"
"io"
"sync"
"time"
"github.com/google/uuid"
"github.com/micro/go-micro/client"
"github.com/micro/go-micro/network/router"
pb "github.com/micro/go-micro/network/router/proto"
)
type svc struct {
opts router.Options
router pb.RouterService
status router.Status
watchers map[string]*svcWatcher
exit chan struct{}
errChan chan error
advertChan chan *router.Advert
wg *sync.WaitGroup
sync.RWMutex
}
// NewRouter creates new service router and returns it
func NewRouter(opts ...router.Option) router.Router {
// get default options
options := router.DefaultOptions()
// apply requested options
for _, o := range opts {
o(&options)
}
// NOTE: might need some client opts here
client := client.DefaultClient
// NOTE: should we have Client/Service option in router.Options?
s := &svc{
opts: options,
router: pb.NewRouterService(router.DefaultName, client),
status: router.Status{Code: router.Stopped, Error: nil},
watchers: make(map[string]*svcWatcher),
wg: &sync.WaitGroup{},
}
go s.run()
return s
}
// Init initializes router with given options
func (s *svc) Init(opts ...router.Option) error {
for _, o := range opts {
o(&s.opts)
}
return nil
}
// Options returns router options
func (s *svc) Options() router.Options {
return s.opts
}
// watchRouter watches router and send events to all registered watchers
func (s *svc) watchRouter(stream pb.Router_WatchService) error {
s.wg.Add(1)
go func() {
defer s.wg.Done()
<-s.exit
stream.Close()
}()
var watchErr error
for {
resp, err := stream.Recv()
if err != nil {
if err != io.EOF {
watchErr = err
}
break
}
route := router.Route{
Service: resp.Route.Service,
Address: resp.Route.Address,
Gateway: resp.Route.Gateway,
Network: resp.Route.Network,
Link: resp.Route.Link,
Metric: int(resp.Route.Metric),
}
event := &router.Event{
Type: router.EventType(resp.Type),
Timestamp: time.Unix(0, resp.Timestamp),
Route: route,
}
// TODO: might make this non-blocking
s.RLock()
for _, w := range s.watchers {
select {
case w.resChan <- event:
case <-w.done:
}
}
s.RUnlock()
}
return watchErr
}
// watchErrors watches router errors and takes appropriate actions
func (s *svc) watchErrors() {
var err error
select {
case <-s.exit:
case err = <-s.errChan:
}
s.Lock()
defer s.Unlock()
if s.status.Code != router.Stopped {
// notify all goroutines to finish
close(s.exit)
if s.status.Code == router.Advertising {
// drain the advertise channel
for range s.advertChan {
}
}
s.status = router.Status{Code: router.Stopped, Error: nil}
}
if err != nil {
s.status = router.Status{Code: router.Error, Error: err}
}
}
// Run runs the router.
func (s *svc) run() {
s.Lock()
defer s.Unlock()
switch s.status.Code {
case router.Stopped, router.Error:
stream, err := s.router.Watch(context.Background(), &pb.WatchRequest{})
if err != nil {
s.status = router.Status{Code: router.Error, Error: fmt.Errorf("failed getting event stream: %s", err)}
return
}
// create error and exit channels
s.errChan = make(chan error, 1)
s.exit = make(chan struct{})
s.wg.Add(1)
go func() {
defer s.wg.Done()
select {
case s.errChan <- s.watchRouter(stream):
case <-s.exit:
}
}()
// watch for errors and cleanup
s.wg.Add(1)
go func() {
defer s.wg.Done()
s.watchErrors()
}()
// mark router as Running and set its Error to nil
s.status = router.Status{Code: router.Running, Error: nil}
return
}
return
}
func (s *svc) advertiseEvents(stream pb.Router_AdvertiseService) error {
s.wg.Add(1)
go func() {
defer s.wg.Done()
<-s.exit
stream.Close()
}()
var advErr error
for {
resp, err := stream.Recv()
if err != nil {
if err != io.EOF {
advErr = err
}
break
}
events := make([]*router.Event, len(resp.Events))
for i, event := range resp.Events {
route := router.Route{
Service: event.Route.Service,
Address: event.Route.Address,
Gateway: event.Route.Gateway,
Network: event.Route.Network,
Link: event.Route.Link,
Metric: int(event.Route.Metric),
}
events[i] = &router.Event{
Type: router.EventType(event.Type),
Timestamp: time.Unix(0, event.Timestamp),
Route: route,
}
}
advert := &router.Advert{
Id: resp.Id,
Type: router.AdvertType(resp.Type),
Timestamp: time.Unix(0, resp.Timestamp),
TTL: time.Duration(resp.Ttl),
Events: events,
}
select {
case s.advertChan <- advert:
case <-s.exit:
close(s.advertChan)
return nil
}
}
// close the channel on exit
close(s.advertChan)
return advErr
}
// Advertise advertises routes to the network
func (s *svc) Advertise() (<-chan *router.Advert, error) {
s.Lock()
defer s.Unlock()
switch s.status.Code {
case router.Advertising:
return s.advertChan, nil
case router.Running:
stream, err := s.router.Advertise(context.Background(), &pb.AdvertiseRequest{})
if err != nil {
return nil, fmt.Errorf("failed getting advert stream: %s", err)
}
// create advertise and event channels
s.advertChan = make(chan *router.Advert)
s.wg.Add(1)
go func() {
defer s.wg.Done()
select {
case s.errChan <- s.advertiseEvents(stream):
case <-s.exit:
}
}()
// mark router as Running and set its Error to nil
s.status = router.Status{Code: router.Advertising, Error: nil}
return s.advertChan, nil
case router.Stopped:
return nil, fmt.Errorf("not running")
}
return nil, fmt.Errorf("error: %s", s.status.Error)
}
// Process processes incoming adverts
func (s *svc) Process(advert *router.Advert) error {
var events []*pb.Event
for _, event := range advert.Events {
route := &pb.Route{
Service: event.Route.Service,
Address: event.Route.Address,
Gateway: event.Route.Gateway,
Network: event.Route.Network,
Link: event.Route.Link,
Metric: int64(event.Route.Metric),
}
e := &pb.Event{
Type: pb.EventType(event.Type),
Timestamp: event.Timestamp.UnixNano(),
Route: route,
}
events = append(events, e)
}
advertReq := &pb.Advert{
Id: s.Options().Id,
Type: pb.AdvertType(advert.Type),
Timestamp: advert.Timestamp.UnixNano(),
Events: events,
}
if _, err := s.router.Process(context.Background(), advertReq); err != nil {
return err
}
return nil
}
// Create new route in the routing table
func (s *svc) Create(r router.Route) error {
route := &pb.Route{
Service: r.Service,
Address: r.Address,
Gateway: r.Gateway,
Network: r.Network,
Link: r.Link,
Metric: int64(r.Metric),
}
if _, err := s.router.Create(context.Background(), route); err != nil {
return err
}
return nil
}
// Delete deletes existing route from the routing table
func (s *svc) Delete(r router.Route) error {
route := &pb.Route{
Service: r.Service,
Address: r.Address,
Gateway: r.Gateway,
Network: r.Network,
Link: r.Link,
Metric: int64(r.Metric),
}
if _, err := s.router.Delete(context.Background(), route); err != nil {
return err
}
return nil
}
// Update updates route in the routing table
func (s *svc) Update(r router.Route) error {
route := &pb.Route{
Service: r.Service,
Address: r.Address,
Gateway: r.Gateway,
Network: r.Network,
Link: r.Link,
Metric: int64(r.Metric),
}
if _, err := s.router.Update(context.Background(), route); err != nil {
return err
}
return nil
}
// List returns the list of all routes in the table
func (s *svc) List() ([]router.Route, error) {
resp, err := s.router.List(context.Background(), &pb.ListRequest{})
if err != nil {
return nil, err
}
routes := make([]router.Route, len(resp.Routes))
for i, route := range resp.Routes {
routes[i] = router.Route{
Service: route.Service,
Address: route.Address,
Gateway: route.Gateway,
Network: route.Network,
Link: route.Link,
Metric: int(route.Metric),
}
}
return routes, nil
}
// Lookup looks up routes in the routing table and returns them
func (s *svc) Lookup(q router.Query) ([]router.Route, error) {
// call the router
resp, err := s.router.Lookup(context.Background(), &pb.LookupRequest{
Query: &pb.Query{
Service: q.Options().Service,
Gateway: q.Options().Gateway,
Network: q.Options().Network,
},
})
// errored out
if err != nil {
return nil, err
}
routes := make([]router.Route, len(resp.Routes))
for i, route := range resp.Routes {
routes[i] = router.Route{
Service: route.Service,
Address: route.Address,
Gateway: route.Gateway,
Network: route.Network,
Link: route.Link,
Metric: int(route.Metric),
}
}
return routes, nil
}
// Watch returns a watcher which allows to track updates to the routing table
func (s *svc) Watch(opts ...router.WatchOption) (router.Watcher, error) {
wopts := router.WatchOptions{
Service: "*",
}
for _, o := range opts {
o(&wopts)
}
w := &svcWatcher{
opts: wopts,
resChan: make(chan *router.Event, 10),
done: make(chan struct{}),
}
s.Lock()
s.watchers[uuid.New().String()] = w
s.Unlock()
// when the router stops, stop the watcher and exit
s.wg.Add(1)
go func() {
defer s.wg.Done()
<-s.exit
w.Stop()
}()
return w, nil
}
// Status returns router status
func (s *svc) Status() router.Status {
s.RLock()
defer s.RUnlock()
// make a copy of the status
status := s.status
return status
}
// Stop stops the router
func (s *svc) Stop() error {
s.Lock()
// only close the channel if the router is running and/or advertising
if s.status.Code == router.Running || s.status.Code == router.Advertising {
// notify all goroutines to finish
close(s.exit)
// drain the advertise channel only if advertising
if s.status.Code == router.Advertising {
for range s.advertChan {
}
}
// mark the router as Stopped and set its Error to nil
s.status = router.Status{Code: router.Stopped, Error: nil}
}
s.Unlock()
// wait for all goroutines to finish
s.wg.Wait()
return nil
}
// Returns the router implementation
func (s *svc) String() string {
return "service"
}

49
network/router/service/watcher.go Normal file
View File

@@ -0,0 +1,49 @@
package service
import (
"sync"
"github.com/micro/go-micro/network/router"
)
type svcWatcher struct {
opts router.WatchOptions
resChan chan *router.Event
done chan struct{}
sync.RWMutex
}
// Next is a blocking call that returns watch result
func (w *svcWatcher) Next() (*router.Event, error) {
for {
select {
case res := <-w.resChan:
switch w.opts.Service {
case res.Route.Service, "*":
return res, nil
default:
continue
}
case <-w.done:
return nil, router.ErrWatcherStopped
}
}
}
// Chan returns event channel
func (w *svcWatcher) Chan() (<-chan *router.Event, error) {
return w.resChan, nil
}
// Stop stops watcher
func (w *svcWatcher) Stop() {
w.Lock()
defer w.Unlock()
select {
case <-w.done:
return
default:
close(w.done)
}
}

132
network/router/table/default.go → network/router/table.go
View File

@@ -1,59 +1,39 @@
package table package router
import ( import (
"errors"
"sync" "sync"
"time" "time"
"github.com/google/uuid" "github.com/google/uuid"
) )
// Options specify routing table options var (
// TODO: table options TBD in the future // ErrRouteNotFound is returned when no route was found in the routing table
type Options struct{} ErrRouteNotFound = errors.New("route not found")
// ErrDuplicateRoute is returned when the route already exists
ErrDuplicateRoute = errors.New("duplicate route")
)
// table is an in memory routing table // Table is an in memory routing table
type table struct { type Table struct {
// opts are table options // routes stores service routes
opts Options routes map[string]map[uint64]Route
// m stores routing table map // watchers stores table watchers
m map[string]map[uint64]Route watchers map[string]*tableWatcher
// w is a list of table watchers
w map[string]*tableWatcher
sync.RWMutex sync.RWMutex
} }
// newTable creates a new routing table and returns it // NewTable creates a new routing table and returns it
func newTable(opts ...Option) Table { func NewTable(opts ...Option) *Table {
// default options return &Table{
var options Options routes: make(map[string]map[uint64]Route),
watchers: make(map[string]*tableWatcher),
// apply requested options
for _, o := range opts {
o(&options)
} }
return &table{
opts: options,
m: make(map[string]map[uint64]Route),
w: make(map[string]*tableWatcher),
}
}
// Init initializes routing table with options
func (t *table) Init(opts ...Option) error {
for _, o := range opts {
o(&t.opts)
}
return nil
}
// Options returns routing table options
func (t *table) Options() Options {
return t.opts
} }
// Create creates new route in the routing table // Create creates new route in the routing table
func (t *table) Create(r Route) error { func (t *Table) Create(r Route) error {
service := r.Service service := r.Service
sum := r.Hash() sum := r.Hash()
@@ -61,16 +41,16 @@ func (t *table) Create(r Route) error {
defer t.Unlock() defer t.Unlock()
// check if there are any routes in the table for the route destination // check if there are any routes in the table for the route destination
if _, ok := t.m[service]; !ok { if _, ok := t.routes[service]; !ok {
t.m[service] = make(map[uint64]Route) t.routes[service] = make(map[uint64]Route)
t.m[service][sum] = r t.routes[service][sum] = r
go t.sendEvent(&Event{Type: Create, Timestamp: time.Now(), Route: r}) go t.sendEvent(&Event{Type: Create, Timestamp: time.Now(), Route: r})
return nil return nil
} }
// add new route to the table for the route destination // add new route to the table for the route destination
if _, ok := t.m[service][sum]; !ok { if _, ok := t.routes[service][sum]; !ok {
t.m[service][sum] = r t.routes[service][sum] = r
go t.sendEvent(&Event{Type: Create, Timestamp: time.Now(), Route: r}) go t.sendEvent(&Event{Type: Create, Timestamp: time.Now(), Route: r})
return nil return nil
} }
@@ -79,25 +59,25 @@ func (t *table) Create(r Route) error {
} }
// Delete deletes the route from the routing table // Delete deletes the route from the routing table
func (t *table) Delete(r Route) error { func (t *Table) Delete(r Route) error {
service := r.Service service := r.Service
sum := r.Hash() sum := r.Hash()
t.Lock() t.Lock()
defer t.Unlock() defer t.Unlock()
if _, ok := t.m[service]; !ok { if _, ok := t.routes[service]; !ok {
return ErrRouteNotFound return ErrRouteNotFound
} }
delete(t.m[service], sum) delete(t.routes[service], sum)
go t.sendEvent(&Event{Type: Delete, Timestamp: time.Now(), Route: r}) go t.sendEvent(&Event{Type: Delete, Timestamp: time.Now(), Route: r})
return nil return nil
} }
// Update updates routing table with the new route // Update updates routing table with the new route
func (t *table) Update(r Route) error { func (t *Table) Update(r Route) error {
service := r.Service service := r.Service
sum := r.Hash() sum := r.Hash()
@@ -105,26 +85,26 @@ func (t *table) Update(r Route) error {
defer t.Unlock() defer t.Unlock()
// check if the route destination has any routes in the table // check if the route destination has any routes in the table
if _, ok := t.m[service]; !ok { if _, ok := t.routes[service]; !ok {
t.m[service] = make(map[uint64]Route) t.routes[service] = make(map[uint64]Route)
t.m[service][sum] = r t.routes[service][sum] = r
go t.sendEvent(&Event{Type: Create, Timestamp: time.Now(), Route: r}) go t.sendEvent(&Event{Type: Create, Timestamp: time.Now(), Route: r})
return nil return nil
} }
t.m[service][sum] = r t.routes[service][sum] = r
go t.sendEvent(&Event{Type: Update, Timestamp: time.Now(), Route: r}) go t.sendEvent(&Event{Type: Update, Timestamp: time.Now(), Route: r})
return nil return nil
} }
// List returns a list of all routes in the table // List returns a list of all routes in the table
func (t *table) List() ([]Route, error) { func (t *Table) List() ([]Route, error) {
t.RLock() t.RLock()
defer t.RUnlock() defer t.RUnlock()
var routes []Route var routes []Route
for _, rmap := range t.m { for _, rmap := range t.routes {
for _, route := range rmap { for _, route := range rmap {
routes = append(routes, route) routes = append(routes, route)
} }
@@ -155,21 +135,20 @@ func findRoutes(routes map[uint64]Route, network, router string) []Route {
} }
// Lookup queries routing table and returns all routes that match the lookup query // Lookup queries routing table and returns all routes that match the lookup query
func (t *table) Lookup(q Query) ([]Route, error) { func (t *Table) Lookup(q Query) ([]Route, error) {
t.RLock() t.RLock()
defer t.RUnlock() defer t.RUnlock()
if q.Options().Service != "*" { if q.Options().Service != "*" {
// no routes found for the destination and query policy is not a DiscardIfNone if _, ok := t.routes[q.Options().Service]; !ok {
if _, ok := t.m[q.Options().Service]; !ok && q.Options().Policy != DiscardIfNone {
return nil, ErrRouteNotFound return nil, ErrRouteNotFound
} }
return findRoutes(t.m[q.Options().Service], q.Options().Network, q.Options().Gateway), nil return findRoutes(t.routes[q.Options().Service], q.Options().Network, q.Options().Gateway), nil
} }
var results []Route var results []Route
// search through all destinations // search through all destinations
for _, routes := range t.m { for _, routes := range t.routes {
results = append(results, findRoutes(routes, q.Options().Network, q.Options().Gateway)...) results = append(results, findRoutes(routes, q.Options().Network, q.Options().Gateway)...)
} }
@@ -177,7 +156,7 @@ func (t *table) Lookup(q Query) ([]Route, error) {
} }
// Watch returns routing table entry watcher // Watch returns routing table entry watcher
func (t *table) Watch(opts ...WatchOption) (Watcher, error) { func (t *Table) Watch(opts ...WatchOption) (Watcher, error) {
// by default watch everything // by default watch everything
wopts := WatchOptions{ wopts := WatchOptions{
Service: "*", Service: "*",
@@ -187,46 +166,33 @@ func (t *table) Watch(opts ...WatchOption) (Watcher, error) {
o(&wopts) o(&wopts)
} }
watcher := &tableWatcher{ w := &tableWatcher{
opts: wopts, opts: wopts,
resChan: make(chan *Event, 10), resChan: make(chan *Event, 10),
done: make(chan struct{}), done: make(chan struct{}),
} }
t.Lock() t.Lock()
t.w[uuid.New().String()] = watcher t.watchers[uuid.New().String()] = w
t.Unlock() t.Unlock()
return watcher, nil return w, nil
} }
// sendEvent sends rules to all subscribe watchers // sendEvent sends events to all subscribed watchers
func (t *table) sendEvent(r *Event) { func (t *Table) sendEvent(e *Event) {
t.RLock() t.RLock()
defer t.RUnlock() defer t.RUnlock()
for _, w := range t.w { for _, w := range t.watchers {
select { select {
case w.resChan <- r: case w.resChan <- e:
case <-w.done: case <-w.done:
} }
} }
} }
// Size returns the size of the routing table
func (t *table) Size() int {
t.RLock()
defer t.RUnlock()
size := 0
for dest := range t.m {
size += len(t.m[dest])
}
return size
}
// String returns debug information // String returns debug information
func (t *table) String() string { func (t *Table) String() string {
return "default" return "table"
} }

38
network/router/table/table.go
View File

@@ -1,38 +0,0 @@
package table
import (
"errors"
)
var (
// ErrRouteNotFound is returned when no route was found in the routing table
ErrRouteNotFound = errors.New("route not found")
// ErrDuplicateRoute is returned when the route already exists
ErrDuplicateRoute = errors.New("duplicate route")
)
// Table defines routing table interface
type Table interface {
// Create new route in the routing table
Create(Route) error
// Delete deletes existing route from the routing table
Delete(Route) error
// Update updates route in the routing table
Update(Route) error
// List returns the list of all routes in the table
List() ([]Route, error)
// Lookup looks up routes in the routing table and returns them
Lookup(Query) ([]Route, error)
// Watch returns a watcher which allows to track updates to the routing table
Watch(opts ...WatchOption) (Watcher, error)
// Size returns the size of the routing table
Size() int
}
// Option used by the routing table
type Option func(*Options)
// NewTable creates new routing table and returns it
func NewTable(opts ...Option) Table {
return newTable(opts...)
}

42
network/router/table/default_test.go → network/router/table_test.go
View File

@@ -1,8 +1,8 @@
package table package router
import "testing" import "testing"
func testSetup() (Table, Route) { func testSetup() (*Table, Route) {
table := NewTable() table := NewTable()
route := Route{ route := Route{
@@ -18,12 +18,10 @@ func testSetup() (Table, Route) {
func TestCreate(t *testing.T) { func TestCreate(t *testing.T) {
table, route := testSetup() table, route := testSetup()
testTableSize := table.Size()
if err := table.Create(route); err != nil { if err := table.Create(route); err != nil {
t.Errorf("error adding route: %s", err) t.Errorf("error adding route: %s", err)
} }
testTableSize++
// adds new route for the original destination // adds new route for the original destination
route.Gateway = "dest.gw2" route.Gateway = "dest.gw2"
@@ -31,11 +29,6 @@ func TestCreate(t *testing.T) {
if err := table.Create(route); err != nil { if err := table.Create(route); err != nil {
t.Errorf("error adding route: %s", err) t.Errorf("error adding route: %s", err)
} }
testTableSize++
if table.Size() != testTableSize {
t.Errorf("invalid number of routes. Expected: %d, found: %d", testTableSize, table.Size())
}
// adding the same route under Insert policy must error // adding the same route under Insert policy must error
if err := table.Create(route); err != ErrDuplicateRoute { if err := table.Create(route); err != ErrDuplicateRoute {
@@ -45,12 +38,10 @@ func TestCreate(t *testing.T) {
func TestDelete(t *testing.T) { func TestDelete(t *testing.T) {
table, route := testSetup() table, route := testSetup()
testTableSize := table.Size()
if err := table.Create(route); err != nil { if err := table.Create(route); err != nil {
t.Errorf("error adding route: %s", err) t.Errorf("error adding route: %s", err)
} }
testTableSize++
// should fail to delete non-existant route // should fail to delete non-existant route
prevSvc := route.Service prevSvc := route.Service
@@ -66,21 +57,14 @@ func TestDelete(t *testing.T) {
if err := table.Delete(route); err != nil { if err := table.Delete(route); err != nil {
t.Errorf("error deleting route: %s", err) t.Errorf("error deleting route: %s", err)
} }
testTableSize--
if table.Size() != testTableSize {
t.Errorf("invalid number of routes. Expected: %d, found: %d", testTableSize, table.Size())
}
} }
func TestUpdate(t *testing.T) { func TestUpdate(t *testing.T) {
table, route := testSetup() table, route := testSetup()
testTableSize := table.Size()
if err := table.Create(route); err != nil { if err := table.Create(route); err != nil {
t.Errorf("error adding route: %s", err) t.Errorf("error adding route: %s", err)
} }
testTableSize++
// change the metric of the original route // change the metric of the original route
route.Metric = 200 route.Metric = 200
@@ -89,22 +73,12 @@ func TestUpdate(t *testing.T) {
t.Errorf("error updating route: %s", err) t.Errorf("error updating route: %s", err)
} }
// the size of the table should not change as we're only updating the metric of an existing route
if table.Size() != testTableSize {
t.Errorf("invalid number of routes. Expected: %d, found: %d", testTableSize, table.Size())
}
// this should add a new route // this should add a new route
route.Service = "rand.dest" route.Service = "rand.dest"
if err := table.Update(route); err != nil { if err := table.Update(route); err != nil {
t.Errorf("error updating route: %s", err) t.Errorf("error updating route: %s", err)
} }
testTableSize++
if table.Size() != testTableSize {
t.Errorf("invalid number of routes. Expected: %d, found: %d", testTableSize, table.Size())
}
} }
func TestList(t *testing.T) { func TestList(t *testing.T) {
@@ -127,10 +101,6 @@ func TestList(t *testing.T) {
if len(routes) != len(svc) { if len(routes) != len(svc) {
t.Errorf("incorrect number of routes listed. Expected: %d, found: %d", len(svc), len(routes)) t.Errorf("incorrect number of routes listed. Expected: %d, found: %d", len(svc), len(routes))
} }
if len(routes) != table.Size() {
t.Errorf("mismatch number of routes and table size. Expected: %d, found: %d", len(routes), table.Size())
}
} }
func TestLookup(t *testing.T) { func TestLookup(t *testing.T) {
@@ -157,10 +127,6 @@ func TestLookup(t *testing.T) {
t.Errorf("error looking up routes: %s", err) t.Errorf("error looking up routes: %s", err)
} }
if len(routes) != table.Size() {
t.Errorf("incorrect number of routes returned. Expected: %d, found: %d", table.Size(), len(routes))
}
// query particular net // query particular net
query = NewQuery(QueryNetwork("net1")) query = NewQuery(QueryNetwork("net1"))
@@ -218,8 +184,8 @@ func TestLookup(t *testing.T) {
query = NewQuery(QueryService("foobar")) query = NewQuery(QueryService("foobar"))
routes, err = table.Lookup(query) routes, err = table.Lookup(query)
if err != nil { if err != ErrRouteNotFound {
t.Errorf("error looking up routes: %s", err) t.Errorf("error looking up routes. Expected: %s, found: %s", ErrRouteNotFound, err)
} }
if len(routes) != 0 { if len(routes) != 0 {

18
network/router/table/watcher.go → network/router/watcher.go
View File

@@ -1,7 +1,8 @@
package table package router
import ( import (
"errors" "errors"
"sync"
"time" "time"
) )
@@ -22,11 +23,9 @@ const (
Update Update
) )
// String implements fmt.Stringer // String returns human readable event type
// NOTE: we need this as this makes converting the numeric codes func (t EventType) String() string {
// into miro style string actions very simple switch t {
func (et EventType) String() string {
switch et {
case Create: case Create:
return "create" return "create"
case Delete: case Delete:
@@ -80,11 +79,11 @@ type tableWatcher struct {
opts WatchOptions opts WatchOptions
resChan chan *Event resChan chan *Event
done chan struct{} done chan struct{}
sync.RWMutex
} }
// Next returns the next noticed action taken on table // Next returns the next noticed action taken on table
// TODO: this needs to be thought through properly; // TODO: right now we only allow to watch particular service
// right now we only allow to watch service
func (w *tableWatcher) Next() (*Event, error) { func (w *tableWatcher) Next() (*Event, error) {
for { for {
select { select {
@@ -108,6 +107,9 @@ func (w *tableWatcher) Chan() (<-chan *Event, error) {
// Stop stops routing table watcher // Stop stops routing table watcher
func (w *tableWatcher) Stop() { func (w *tableWatcher) Stop() {
w.Lock()
defer w.Unlock()
select { select {
case <-w.done: case <-w.done:
return return