First commit: Outline of Router interface

router/options.go

@@ -0,0 +1,31 @@
+package router
+
+import (
+	"context"
+	"time"
+
+	"github.com/micro/go-micro/registry"
+)
+
+// Options allows to set Router options
+type Options struct {
+	// Registry is route source registry i.e. local registry
+	Registry registry.Registry
+	// Context stores arbitrary options
+	Context context.Context
+}
+
+// RouteOption allows to soecify routing table options
+type RouteOption struct {
+	// TTL defines route entry lifetime
+	TTL time.Duration
+	// COntext allows to specify other arbitrary options
+	Context context.Context
+}
+
+// Registry is local registry
+func Registry(r registry.Registry) Option {
+	return func(o *Options) {
+		o.Registry = r
+	}
+}