Merge pull request #722 from milosgajdos83/net-handler
[WIP] Network handler
This commit is contained in:
Asim Aslam
GitHub
commit
90745c14f2
@ -33,12 +33,41 @@ type node struct {
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id string
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// address is node address
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address string
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// neighbours are node neightbours
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// neighbours maps the node neighbourhood
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neighbours map[string]*node
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// network returns network node is in
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network Network
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}
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// Id is node ide
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func (n *node) Id() string {
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return n.id
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}
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// Address returns node address
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func (n *node) Address() string {
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return n.address
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}
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// Network returns node network
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func (n *node) Network() Network {
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return n.network
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}
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// Neighbourhood returns node neighbourhood
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func (n *node) Neighbourhood() []Node {
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var nodes []Node
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for _, node := range n.neighbours {
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nodes = append(nodes, node)
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}
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return nodes
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}
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// network implements Network interface
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type network struct {
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// node is network node
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*node
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// options configure the network
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options Options
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// rtr is network router
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@ -52,7 +81,7 @@ type network struct {
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// client is network client
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client client.Client
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// tunClient is a mao of tunnel clients keyed over channel names
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// tunClient is a map of tunnel clients keyed over tunnel channel names
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tunClient map[string]transport.Client
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sync.RWMutex
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@ -60,8 +89,6 @@ type network struct {
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connected bool
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// closed closes the network
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closed chan bool
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// neighbours maps the node neighbourhood
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neighbours map[string]*node
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}
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// newNetwork returns a new network node
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@ -106,16 +133,33 @@ func newNetwork(opts ...Option) Network {
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),
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)
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return &network{
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options: options,
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Router: options.Router,
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Proxy: options.Proxy,
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Tunnel: options.Tunnel,
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server: server,
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client: client,
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tunClient: make(map[string]transport.Client),
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neighbours: make(map[string]*node),
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network := &network{
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node: &node{
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id: options.Id,
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address: options.Address,
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neighbours: make(map[string]*node),
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},
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options: options,
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Router: options.Router,
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Proxy: options.Proxy,
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Tunnel: options.Tunnel,
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server: server,
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client: client,
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tunClient: make(map[string]transport.Client),
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}
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network.node.network = network
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return network
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}
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// Options returns network options
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func (n *network) Options() Options {
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n.Lock()
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options := n.options
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n.Unlock()
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return options
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}
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// Name returns network name
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@ -686,6 +730,46 @@ func (n *network) Connect() error {
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return nil
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}
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// Nodes returns a list of all network nodes
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// NOTE: this is a naive i.e. inefficient BFS implementation
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func (n *network) Nodes() []Node {
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// map to track visited nodes
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visited := make(map[string]*node)
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// queue of the nodes to visit
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queue := make([]*node, 1)
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queue[0] = n.node
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// add the root node to the map of the visited nodes
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visited[n.node.id] = n.node
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for {
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// pop a node from the queue
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qnode := queue[0]
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// pop is done by reslicing of the queue
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// https://github.com/golang/go/wiki/SliceTricks
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queue = queue[1:]
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// iterate through all of its neighbours
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// mark the visited nodes; enqueue the non-visted
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for id, node := range qnode.neighbours {
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if _, ok := visited[id]; !ok {
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visited[id] = node
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queue = append(queue, node)
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}
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}
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// if no nodes are in the queue break
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if len(queue) == 0 {
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break
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}
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}
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nodes := make([]Node, 0)
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// collecte all the nodes into slice
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for _, node := range visited {
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nodes = append(nodes, node)
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}
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return nodes
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}
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func (n *network) close() error {
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// stop the server
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if err := n.server.Stop(); err != nil {
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103
network/handler/handler.go
Normal file
103
network/handler/handler.go
Normal file
@ -0,0 +1,103 @@
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package handler
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import (
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"context"
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"sort"
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"github.com/micro/go-micro/errors"
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"github.com/micro/go-micro/network"
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pbNet "github.com/micro/go-micro/network/proto"
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pbRtr "github.com/micro/go-micro/router/proto"
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)
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// Network implements network handler
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type Network struct {
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Network network.Network
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}
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// ListRoutes returns a list of routing table routes
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func (n *Network) ListRoutes(ctx context.Context, req *pbRtr.Request, resp *pbRtr.ListResponse) error {
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routes, err := n.Network.Options().Router.Table().List()
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if err != nil {
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return errors.InternalServerError("go.micro.network", "failed to list routes: %s", err)
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}
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var respRoutes []*pbRtr.Route
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for _, route := range routes {
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respRoute := &pbRtr.Route{
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Service: route.Service,
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Address: route.Address,
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Gateway: route.Gateway,
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Network: route.Network,
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Router: route.Router,
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Link: route.Link,
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Metric: int64(route.Metric),
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}
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respRoutes = append(respRoutes, respRoute)
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}
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resp.Routes = respRoutes
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return nil
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}
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// ListNodes returns a list of all accessible nodes in the network
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func (n *Network) ListNodes(ctx context.Context, req *pbNet.ListRequest, resp *pbNet.ListResponse) error {
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nodes := n.Network.Nodes()
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var respNodes []*pbNet.Node
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for _, node := range nodes {
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respNode := &pbNet.Node{
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Id: node.Id(),
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Address: node.Address(),
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}
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respNodes = append(respNodes, respNode)
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}
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resp.Nodes = respNodes
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return nil
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}
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// Neighbourhood returns a list of immediate neighbours
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func (n *Network) Neighbourhood(ctx context.Context, req *pbNet.NeighbourhoodRequest, resp *pbNet.NeighbourhoodResponse) error {
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// extract the id of the node to query
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id := req.Id
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// if no id is passed, we assume local node
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if id == "" {
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id = n.Network.Id()
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}
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// get all the nodes in the network
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nodes := n.Network.Nodes()
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var neighbours []*pbNet.Neighbour
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// find a node with a given id
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i := sort.Search(len(nodes), func(i int) bool { return nodes[i].Id() == id })
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// collect all the nodes in the neighbourhood of the found node
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if i < len(nodes) && nodes[i].Id() == id {
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for _, neighbour := range nodes[i].Neighbourhood() {
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var nodeNeighbours []*pbNet.Node
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for _, nodeNeighbour := range neighbour.Neighbourhood() {
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nn := &pbNet.Node{
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Id: nodeNeighbour.Id(),
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Address: nodeNeighbour.Address(),
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}
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nodeNeighbours = append(nodeNeighbours, nn)
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}
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// node is present at node[i]
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neighbour := &pbNet.Neighbour{
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Node: &pbNet.Node{
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Id: neighbour.Id(),
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Address: neighbour.Address(),
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},
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Neighbours: nodeNeighbours,
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}
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neighbours = append(neighbours, neighbour)
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}
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}
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resp.Neighbours = neighbours
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return nil
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}
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@ -19,14 +19,30 @@ var (
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AnnounceTime = 30 * time.Second
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)
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// Node is network node
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type Node interface {
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// Id is node id
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Id() string
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// Address is node bind address
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Address() string
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// Neighbourhood is node neighbourhood
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Neighbourhood() []Node
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// Network is the network node is in
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Network() Network
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}
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// Network is micro network
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type Network interface {
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// Node is network node
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Node
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// Options returns the network options
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Options() Options
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// Name of the network
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Name() string
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// Address returns network bind address
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Address() string
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// Connect starts the resolver and tunnel server
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Connect() error
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// Nodes returns list of network nodes
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Nodes() []Node
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// Close stops the tunnel and resolving
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Close() error
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// Client is micro client
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@ -37,7 +37,7 @@ var _ server.Option
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type NetworkService interface {
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ListRoutes(ctx context.Context, in *proto1.Request, opts ...client.CallOption) (*proto1.ListResponse, error)
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ListNodes(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
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ListNeighbours(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
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Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, opts ...client.CallOption) (*NeighbourhoodResponse, error)
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}
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type networkService struct {
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@ -78,9 +78,9 @@ func (c *networkService) ListNodes(ctx context.Context, in *ListRequest, opts ..
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return out, nil
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}
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func (c *networkService) ListNeighbours(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) {
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req := c.c.NewRequest(c.name, "Network.ListNeighbours", in)
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out := new(ListResponse)
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func (c *networkService) Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, opts ...client.CallOption) (*NeighbourhoodResponse, error) {
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req := c.c.NewRequest(c.name, "Network.Neighbourhood", in)
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out := new(NeighbourhoodResponse)
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err := c.c.Call(ctx, req, out, opts...)
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if err != nil {
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return nil, err
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@ -93,14 +93,14 @@ func (c *networkService) ListNeighbours(ctx context.Context, in *ListRequest, op
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type NetworkHandler interface {
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ListRoutes(context.Context, *proto1.Request, *proto1.ListResponse) error
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ListNodes(context.Context, *ListRequest, *ListResponse) error
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ListNeighbours(context.Context, *ListRequest, *ListResponse) error
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Neighbourhood(context.Context, *NeighbourhoodRequest, *NeighbourhoodResponse) error
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}
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func RegisterNetworkHandler(s server.Server, hdlr NetworkHandler, opts ...server.HandlerOption) error {
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type network interface {
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ListRoutes(ctx context.Context, in *proto1.Request, out *proto1.ListResponse) error
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ListNodes(ctx context.Context, in *ListRequest, out *ListResponse) error
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ListNeighbours(ctx context.Context, in *ListRequest, out *ListResponse) error
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Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, out *NeighbourhoodResponse) error
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}
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type Network struct {
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network
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@ -121,6 +121,6 @@ func (h *networkHandler) ListNodes(ctx context.Context, in *ListRequest, out *Li
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return h.NetworkHandler.ListNodes(ctx, in, out)
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}
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func (h *networkHandler) ListNeighbours(ctx context.Context, in *ListRequest, out *ListResponse) error {
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return h.NetworkHandler.ListNeighbours(ctx, in, out)
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func (h *networkHandler) Neighbourhood(ctx context.Context, in *NeighbourhoodRequest, out *NeighbourhoodResponse) error {
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return h.NetworkHandler.Neighbourhood(ctx, in, out)
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}
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@ -93,6 +93,86 @@ func (m *ListResponse) GetNodes() []*Node {
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return nil
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}
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// NeighbourhoodRequest is sent to query node neighbourhood
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type NeighbourhoodRequest struct {
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Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *NeighbourhoodRequest) Reset() { *m = NeighbourhoodRequest{} }
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func (m *NeighbourhoodRequest) String() string { return proto.CompactTextString(m) }
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func (*NeighbourhoodRequest) ProtoMessage() {}
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func (*NeighbourhoodRequest) Descriptor() ([]byte, []int) {
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return fileDescriptor_8571034d60397816, []int{2}
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}
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func (m *NeighbourhoodRequest) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_NeighbourhoodRequest.Unmarshal(m, b)
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}
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func (m *NeighbourhoodRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
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return xxx_messageInfo_NeighbourhoodRequest.Marshal(b, m, deterministic)
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}
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func (m *NeighbourhoodRequest) XXX_Merge(src proto.Message) {
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xxx_messageInfo_NeighbourhoodRequest.Merge(m, src)
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}
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func (m *NeighbourhoodRequest) XXX_Size() int {
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return xxx_messageInfo_NeighbourhoodRequest.Size(m)
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}
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func (m *NeighbourhoodRequest) XXX_DiscardUnknown() {
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xxx_messageInfo_NeighbourhoodRequest.DiscardUnknown(m)
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}
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var xxx_messageInfo_NeighbourhoodRequest proto.InternalMessageInfo
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func (m *NeighbourhoodRequest) GetId() string {
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if m != nil {
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return m.Id
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}
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return ""
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}
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// NeighbourhoodResponse contains node neighbourhood hierarchy
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type NeighbourhoodResponse struct {
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Neighbours []*Neighbour `protobuf:"bytes,1,rep,name=neighbours,proto3" json:"neighbours,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *NeighbourhoodResponse) Reset() { *m = NeighbourhoodResponse{} }
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func (m *NeighbourhoodResponse) String() string { return proto.CompactTextString(m) }
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func (*NeighbourhoodResponse) ProtoMessage() {}
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func (*NeighbourhoodResponse) Descriptor() ([]byte, []int) {
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return fileDescriptor_8571034d60397816, []int{3}
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}
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func (m *NeighbourhoodResponse) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_NeighbourhoodResponse.Unmarshal(m, b)
|
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}
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func (m *NeighbourhoodResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
|
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return xxx_messageInfo_NeighbourhoodResponse.Marshal(b, m, deterministic)
|
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}
|
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func (m *NeighbourhoodResponse) XXX_Merge(src proto.Message) {
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xxx_messageInfo_NeighbourhoodResponse.Merge(m, src)
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}
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func (m *NeighbourhoodResponse) XXX_Size() int {
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return xxx_messageInfo_NeighbourhoodResponse.Size(m)
|
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}
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func (m *NeighbourhoodResponse) XXX_DiscardUnknown() {
|
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xxx_messageInfo_NeighbourhoodResponse.DiscardUnknown(m)
|
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}
|
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|
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var xxx_messageInfo_NeighbourhoodResponse proto.InternalMessageInfo
|
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func (m *NeighbourhoodResponse) GetNeighbours() []*Neighbour {
|
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if m != nil {
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return m.Neighbours
|
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}
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return nil
|
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}
|
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// Node is network node
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type Node struct {
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// node ide
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@ -108,7 +188,7 @@ func (m *Node) Reset() { *m = Node{} }
|
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func (m *Node) String() string { return proto.CompactTextString(m) }
|
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func (*Node) ProtoMessage() {}
|
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func (*Node) Descriptor() ([]byte, []int) {
|
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return fileDescriptor_8571034d60397816, []int{2}
|
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return fileDescriptor_8571034d60397816, []int{4}
|
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}
|
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|
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func (m *Node) XXX_Unmarshal(b []byte) error {
|
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@ -156,7 +236,7 @@ func (m *Connect) Reset() { *m = Connect{} }
|
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func (m *Connect) String() string { return proto.CompactTextString(m) }
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func (*Connect) ProtoMessage() {}
|
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func (*Connect) Descriptor() ([]byte, []int) {
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return fileDescriptor_8571034d60397816, []int{3}
|
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return fileDescriptor_8571034d60397816, []int{5}
|
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}
|
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|
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func (m *Connect) XXX_Unmarshal(b []byte) error {
|
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@ -186,7 +266,7 @@ func (m *Connect) GetNode() *Node {
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// Close is sent when the node disconnects from the network
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type Close struct {
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// network mode
|
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// network node
|
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Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
|
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XXX_unrecognized []byte `json:"-"`
|
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@ -197,7 +277,7 @@ func (m *Close) Reset() { *m = Close{} }
|
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func (m *Close) String() string { return proto.CompactTextString(m) }
|
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func (*Close) ProtoMessage() {}
|
||||
func (*Close) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_8571034d60397816, []int{4}
|
||||
return fileDescriptor_8571034d60397816, []int{6}
|
||||
}
|
||||
|
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func (m *Close) XXX_Unmarshal(b []byte) error {
|
||||
@ -227,7 +307,7 @@ func (m *Close) GetNode() *Node {
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|
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// Neighbour is used to nnounce node neighbourhood
|
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type Neighbour struct {
|
||||
// network mode
|
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// network node
|
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Node *Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
|
||||
// neighbours
|
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Neighbours []*Node `protobuf:"bytes,3,rep,name=neighbours,proto3" json:"neighbours,omitempty"`
|
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@ -240,7 +320,7 @@ func (m *Neighbour) Reset() { *m = Neighbour{} }
|
||||
func (m *Neighbour) String() string { return proto.CompactTextString(m) }
|
||||
func (*Neighbour) ProtoMessage() {}
|
||||
func (*Neighbour) Descriptor() ([]byte, []int) {
|
||||
return fileDescriptor_8571034d60397816, []int{5}
|
||||
return fileDescriptor_8571034d60397816, []int{7}
|
||||
}
|
||||
|
||||
func (m *Neighbour) XXX_Unmarshal(b []byte) error {
|
||||
@ -278,6 +358,8 @@ func (m *Neighbour) GetNeighbours() []*Node {
|
||||
func init() {
|
||||
proto.RegisterType((*ListRequest)(nil), "go.micro.network.ListRequest")
|
||||
proto.RegisterType((*ListResponse)(nil), "go.micro.network.ListResponse")
|
||||
proto.RegisterType((*NeighbourhoodRequest)(nil), "go.micro.network.NeighbourhoodRequest")
|
||||
proto.RegisterType((*NeighbourhoodResponse)(nil), "go.micro.network.NeighbourhoodResponse")
|
||||
proto.RegisterType((*Node)(nil), "go.micro.network.Node")
|
||||
proto.RegisterType((*Connect)(nil), "go.micro.network.Connect")
|
||||
proto.RegisterType((*Close)(nil), "go.micro.network.Close")
|
||||
@ -287,24 +369,27 @@ func init() {
|
||||
func init() { proto.RegisterFile("network.proto", fileDescriptor_8571034d60397816) }
|
||||
|
||||
var fileDescriptor_8571034d60397816 = []byte{
|
||||
// 302 bytes of a gzipped FileDescriptorProto
|
||||
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||||
// 344 bytes of a gzipped FileDescriptorProto
|
||||
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|
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|
||||
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|
||||
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|
||||
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|
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|
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|
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|
||||
}
|
||||
|
||||
@ -8,7 +8,7 @@ import "github.com/micro/go-micro/router/proto/router.proto";
|
||||
service Network {
|
||||
rpc ListRoutes(go.micro.router.Request) returns (go.micro.router.ListResponse) {};
|
||||
rpc ListNodes(ListRequest) returns (ListResponse) {};
|
||||
rpc ListNeighbours(ListRequest) returns (ListResponse) {};
|
||||
rpc Neighbourhood(NeighbourhoodRequest) returns (NeighbourhoodResponse) {};
|
||||
}
|
||||
|
||||
// Empty request
|
||||
@ -19,6 +19,16 @@ message ListResponse {
|
||||
repeated Node nodes = 1;
|
||||
}
|
||||
|
||||
// NeighbourhoodRequest is sent to query node neighbourhood
|
||||
message NeighbourhoodRequest {
|
||||
string id = 1;
|
||||
}
|
||||
|
||||
// NeighbourhoodResponse contains node neighbourhood hierarchy
|
||||
message NeighbourhoodResponse {
|
||||
repeated Neighbour neighbours = 1;
|
||||
}
|
||||
|
||||
// Node is network node
|
||||
message Node {
|
||||
// node ide
|
||||
@ -35,13 +45,13 @@ message Connect {
|
||||
|
||||
// Close is sent when the node disconnects from the network
|
||||
message Close {
|
||||
// network mode
|
||||
// network node
|
||||
Node node = 1;
|
||||
}
|
||||
|
||||
// Neighbour is used to nnounce node neighbourhood
|
||||
message Neighbour {
|
||||
// network mode
|
||||
// network node
|
||||
Node node = 1;
|
||||
// neighbours
|
||||
repeated Node neighbours = 3;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user