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// Copyright (c) 2019 Cisco and/or its affiliates.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package proxy
import (
"fmt"
"io"
"net"
"net/http"
"net/rpc"
"git.fd.io/govpp.git/adapter"
)
// Server defines a proxy server that serves client requests to stats and binapi.
type Server struct {
rpc *rpc.Server
statsRPC *StatsRPC
binapiRPC *BinapiRPC
}
func NewServer() (*Server, error) {
srv := &Server{
rpc: rpc.NewServer(),
statsRPC: &StatsRPC{},
binapiRPC: &BinapiRPC{},
}
if err := srv.rpc.Register(srv.statsRPC); err != nil {
return nil, err
}
if err := srv.rpc.Register(srv.binapiRPC); err != nil {
return nil, err
}
return srv, nil
}
func (p *Server) ConnectStats(stats adapter.StatsAPI) error {
return p.statsRPC.connect(stats)
}
func (p *Server) DisconnectStats() {
p.statsRPC.disconnect()
}
func (p *Server) ConnectBinapi(binapi adapter.VppAPI) error {
return p.binapiRPC.connect(binapi)
}
func (p *Server) DisconnectBinapi() {
p.binapiRPC.disconnect()
}
func (p *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
p.rpc.ServeHTTP(w, req)
}
func (p *Server) ServeCodec(codec rpc.ServerCodec) {
p.rpc.ServeCodec(codec)
}
func (p *Server) ServeConn(conn io.ReadWriteCloser) {
p.rpc.ServeConn(conn)
}
func (p *Server) ListenAndServe(addr string) error {
p.rpc.HandleHTTP(rpc.DefaultRPCPath, rpc.DefaultDebugPath)
l, e := net.Listen("tcp", addr)
if e != nil {
return fmt.Errorf("listen failed: %v", e)
}
defer l.Close()
log.Printf("proxy serving on: %v", addr)
return http.Serve(l, nil)
}
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