add router selector and network defaults

network/default.go

@@ -0,0 +1,95 @@
+package network
+
+import (
+	"sync"
+
+	"github.com/micro/go-micro/config/options"
+	"github.com/micro/go-micro/network/router"
+	"github.com/micro/go-micro/network/proxy"
+)
+
+type network struct {
+	options.Options
+
+	// router
+	r router.Router
+
+	// proxy
+	p proxy.Proxy
+
+	// id of this network
+	id string
+
+	// links maintained for this network
+	mtx sync.RWMutex
+	links []Link
+}
+
+type node struct {
+	*network
+
+	// address of this node
+	address string
+}
+
+
+type link struct {
+	// the embedded node
+	*node
+
+	// length and weight of the link
+	mtx sync.RWMutex
+	length, weight int
+}
+
+// network methods
+
+func (n *network) Id() string {
+	return n.id
+}
+
+func (n *network) Connect() (Node, error) {
+	return nil, nil
+}
+
+func (n *network) Peer(Network) (Link, error) {
+	return nil, nil
+}
+
+func (n *network) Links() ([]Link, error) {
+	n.mtx.RLock()
+	defer n.mtx.RUnlock()
+	return n.links, nil
+}
+
+// node methods
+
+func (n *node) Address() string {
+	return n.address
+}
+
+func (n *node) Close() error {
+	return nil
+}
+
+func (n *node) Accept() (*Message, error) {
+	return nil, nil
+}
+
+func (n *node) Send(*Message) error {
+	return nil
+}
+
+// link methods
+
+func (l *link) Length() int {
+	l.mtx.RLock()
+	defer l.mtx.RUnlock()
+	return l.length
+}
+
+func (l *link) Weight() int {
+	l.mtx.RLock()
+	defer l.mtx.RUnlock()
+	return l.weight
+}

network/network.go

@@ -51,6 +51,25 @@ type Message struct {
 }
 
 var (
-	// TODO: set default network
-	DefaultNetwork Network
+	// The default network ID is local
+	DefaultNetworkId = "local"
+
+	// just the standard network element
+	DefaultNetwork = NewNetwork()
 )
+
+// NewNetwork returns a new network
+func NewNetwork(opts ...options.Option) Network {
+	options := options.NewOptions(opts...)
+
+	// get router
+
+	// get proxy
+
+	return &network{
+		Options: options,
+		// fill the blanks
+		// router: r,
+		// proxy: p,
+	}
+}

network/proxy/mucp/mucp.go

@@ -7,10 +7,12 @@ import (
 	"strings"
 
 	"github.com/micro/go-micro/client"
+	rselect "github.com/micro/go-micro/client/selector/router"
 	"github.com/micro/go-micro/codec"
 	"github.com/micro/go-micro/codec/bytes"
 	"github.com/micro/go-micro/config/options"
 	"github.com/micro/go-micro/network/proxy"
+	"github.com/micro/go-micro/network/router"
 	"github.com/micro/go-micro/server"
 )
 
@@ -162,5 +164,18 @@ func NewProxy(opts ...options.Option) proxy.Proxy {
 		p.Client = c.(client.Client)
 	}
 
+	// get router
+	r, ok := p.Options.Values().Get("proxy.router")
+	if ok {
+		// set the router in the client
+		p.Client.Init(
+			// pass new selector as an option to the client
+			client.Selector(rselect.NewSelector(
+				// set the router in the selector
+				rselect.WithRouter(r.(router.Router)),
+			)),
+		)
+	}
+
 	return p
 }

network/proxy/proxy.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/micro/go-micro/client"
 	"github.com/micro/go-micro/config/options"
+	"github.com/micro/go-micro/network/router"
 	"github.com/micro/go-micro/server"
 )
 
@@ -29,3 +30,8 @@ func WithEndpoint(e string) options.Option {
 func WithClient(c client.Client) options.Option {
 	return options.WithValue("proxy.client", c)
 }
+
+// WithRouter specifies the router to use
+func WithRouter(r router.Router) options.Option {
+	return options.WithValue("proxy.router", r)
+}