package main
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import (
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"errors"
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"net/http"
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rpc "github.com/tendermint/go-rpc/server"
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)
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func startRPC(listenAddr string, m *Monitor) {
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routes := routes(m)
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// serve http and ws
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mux := http.NewServeMux()
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wm := rpc.NewWebsocketManager(routes, nil) // TODO: evsw
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mux.HandleFunc("/websocket", wm.WebsocketHandler)
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rpc.RegisterRPCFuncs(mux, routes)
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if _, err := rpc.StartHTTPServer(listenAddr, mux); err != nil {
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panic(err)
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}
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}
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func routes(m *Monitor) map[string]*rpc.RPCFunc {
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return map[string]*rpc.RPCFunc{
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"status": rpc.NewRPCFunc(RPCStatus(m), ""),
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"status/network": rpc.NewRPCFunc(RPCNetworkStatus(m), ""),
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"status/node": rpc.NewRPCFunc(RPCNodeStatus(m), "name"),
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"monitor": rpc.NewRPCFunc(RPCMonitor(m), "endpoint"),
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"unmonitor": rpc.NewRPCFunc(RPCUnmonitor(m), "endpoint"),
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// "start_meter": rpc.NewRPCFunc(network.StartMeter, "chainID,valID,event"),
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// "stop_meter": rpc.NewRPCFunc(network.StopMeter, "chainID,valID,event"),
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// "meter": rpc.NewRPCFunc(GetMeterResult(network), "chainID,valID,event"),
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}
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}
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// RPCStatus returns common statistics for the network and statistics per node.
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func RPCStatus(m *Monitor) interface{} {
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return func() (networkAndNodes, error) {
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values := make([]*Node, len(m.Nodes))
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i := 0
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for _, v := range m.Nodes {
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values[i] = v
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i++
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}
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return networkAndNodes{m.Network, values}, nil
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}
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}
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// RPCNetworkStatus returns common statistics for the network.
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func RPCNetworkStatus(m *Monitor) interface{} {
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return func() (*Network, error) {
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return m.Network, nil
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}
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}
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// RPCNodeStatus returns statistics for the given node.
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func RPCNodeStatus(m *Monitor) interface{} {
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return func(name string) (*Node, error) {
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if n, ok := m.Nodes[name]; ok {
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return n, nil
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}
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return nil, errors.New("Cannot find node with that name")
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}
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}
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// RPCMonitor allows to dynamically add a endpoint to under the monitor.
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func RPCMonitor(m *Monitor) interface{} {
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return func(endpoint string) (*Node, error) {
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n := NewNode(endpoint)
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if err := m.Monitor(n); err != nil {
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return nil, err
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}
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return n, nil
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}
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}
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// RPCUnmonitor removes the given endpoint from under the monitor.
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func RPCUnmonitor(m *Monitor) interface{} {
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return func(endpoint string) (bool, error) {
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if n, ok := m.Nodes[endpoint]; ok {
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m.Unmonitor(n)
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return true, nil
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}
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return false, errors.New("Cannot find node with that name")
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}
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}
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// func (tn *TendermintNetwork) StartMeter(chainID, valID, eventID string) error {
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// tn.mtx.Lock()
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// defer tn.mtx.Unlock()
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// val, err := tn.getChainVal(chainID, valID)
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// if err != nil {
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// return err
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// }
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// return val.EventMeter().Subscribe(eventID, nil)
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// }
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// func (tn *TendermintNetwork) StopMeter(chainID, valID, eventID string) error {
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// tn.mtx.Lock()
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// defer tn.mtx.Unlock()
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// val, err := tn.getChainVal(chainID, valID)
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// if err != nil {
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// return err
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// }
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// return val.EventMeter().Unsubscribe(eventID)
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// }
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// func (tn *TendermintNetwork) GetMeter(chainID, valID, eventID string) (*eventmeter.EventMetric, error) {
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// tn.mtx.Lock()
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// defer tn.mtx.Unlock()
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// val, err := tn.getChainVal(chainID, valID)
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// if err != nil {
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// return nil, err
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// }
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// return val.EventMeter().GetMetric(eventID)
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// }
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//--> types
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type networkAndNodes struct {
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Network *Network `json:"network"`
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Nodes []*Node `json:"nodes"`
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}
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