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websocket.go
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websocket.go
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// Copyright 2017 Monax Industries Limited
//
// 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 core
import (
"fmt"
"net"
"net/http"
"strings"
events "github.com/tendermint/go-events"
rpcserver "github.com/tendermint/go-rpc/server"
definitions "github.com/hyperledger/burrow/definitions"
server "github.com/hyperledger/burrow/server"
)
type TendermintWebsocketServer struct {
routes TendermintRoutes
listeners []net.Listener
}
func NewTendermintWebsocketServer(config *server.ServerConfig,
tendermintPipe definitions.TendermintPipe, evsw events.EventSwitch) (
*TendermintWebsocketServer, error) {
if tendermintPipe == nil {
return nil, fmt.Errorf("No Tendermint pipe provided.")
}
tendermintRoutes := TendermintRoutes{
tendermintPipe: tendermintPipe,
}
routes := tendermintRoutes.GetRoutes()
listenerAddresses := strings.Split(config.Tendermint.RpcLocalAddress, ",")
if len(listenerAddresses) == 0 {
return nil, fmt.Errorf("No RPC listening addresses provided in [servers.tendermint.rpc_local_address] in configuration file: %s",
listenerAddresses)
}
listeners := make([]net.Listener, len(listenerAddresses))
for i, listenerAddress := range listenerAddresses {
mux := http.NewServeMux()
wm := rpcserver.NewWebsocketManager(routes, evsw)
mux.HandleFunc(config.Tendermint.Endpoint, wm.WebsocketHandler)
rpcserver.RegisterRPCFuncs(mux, routes)
listener, err := rpcserver.StartHTTPServer(listenerAddress, mux)
if err != nil {
return nil, err
}
listeners[i] = listener
}
return &TendermintWebsocketServer{
routes: tendermintRoutes,
listeners: listeners,
}, nil
}
func (tmServer *TendermintWebsocketServer) Shutdown() {
for _, listener := range tmServer.listeners {
listener.Close()
}
}