yolo commit functioning router code. all credit to the milos gajdos

network/router/service/table.go

@@ -0,0 +1,121 @@
+package service
+
+import (
+	"context"
+
+	"github.com/micro/go-micro/client"
+	"github.com/micro/go-micro/network/router"
+	pb "github.com/micro/go-micro/network/router/proto"
+)
+
+type table struct {
+	table    pb.TableService
+	callOpts []client.CallOption
+}
+
+// Create new route in the routing table
+func (t *table) 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 := t.table.Create(context.Background(), route, t.callOpts...); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Delete deletes existing route from the routing table
+func (t *table) 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 := t.table.Delete(context.Background(), route, t.callOpts...); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Update updates route in the routing table
+func (t *table) 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 := t.table.Update(context.Background(), route, t.callOpts...); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// List returns the list of all routes in the table
+func (t *table) List() ([]router.Route, error) {
+	resp, err := t.table.List(context.Background(), &pb.Request{}, t.callOpts...)
+	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 (t *table) Query(q router.Query) ([]router.Route, error) {
+	// call the router
+	resp, err := t.table.Query(context.Background(), &pb.QueryRequest{
+		Query: &pb.Query{
+			Service: q.Options().Service,
+			Gateway: q.Options().Gateway,
+			Network: q.Options().Network,
+		},
+	}, t.callOpts...)
+
+	// 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
+}