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/*
* Copyright (C) 2018 "IoT.bzh"
* Author Sebastien Douheret <sebastien@iot.bzh>
*
* 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 main
import (
"fmt"
"sync"
socketio_client "github.com/sebd71/go-socket.io-client"
)
// IOSockClient .
type IOSockClient struct {
URL string
Conn *socketio_client.Client
Options *socketio_client.Options
EmitMutex *sync.Mutex
Connected bool
EscapeKeys []byte
}
// NewIoSocketClient Create a new IOSockClient
func NewIoSocketClient(url, clientID string) (*IOSockClient, error) {
var err error
sCli := &IOSockClient{
URL: url,
EmitMutex: &sync.Mutex{},
Options: &socketio_client.Options{
Transport: "websocket",
Header: make(map[string][]string),
},
}
sCli.Options.Header["XDS-AGENT-SID"] = []string{clientID}
sCli.Conn, err = socketio_client.NewClient(url, sCli.Options)
if err != nil {
return nil, fmt.Errorf("IO.socket connection error: " + err.Error())
}
sCli.Conn.On("connection", func() {
sCli.Connected = true
})
sCli.Conn.On("disconnection", func(err error) {
Log.Debugf("WS disconnection event with err: %v\n", err)
sCli.Connected = false
})
return sCli, nil
}
// On record a callback on a specific message
func (c *IOSockClient) On(message string, f interface{}) (err error) {
return c.Conn.On(message, f)
}
// Emit send a message
func (c *IOSockClient) Emit(message string, args ...interface{}) (err error) {
c.EmitMutex.Lock()
defer c.EmitMutex.Unlock()
return c.Conn.Emit(message, args...)
}
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