如何从 Asterisk Manager 接口事件获取活动呼叫数量

在使用Asterisk通信系统时，了解活动呼叫数量对于监控和管理呼叫流量非常重要。而通过Asterisk Manager接口可以获取到各种事件信息，包括呼叫数量。本文将向您介绍如何使用Asterisk Manager接口来获取活动呼叫数量的方法和步骤。无论您是Asterisk的新手还是有经验的用户，本文都会为您提供详细的指导。让我们一起来看看吧！

问题内容

我已经连接到星号，并设法从事件 peerstatus 中获取活动和非活动对等点的数量，但现在我需要获取活动呼叫和通道的数量并显示它们。我尝试过寻找 channelstatedesc=up 的方法，但它不起作用。即使我放置日志，我也看不到该事件被发现。我该如何修复它（也许通过事件 coreshowchannelscomplete？）提前致谢

//server.Go
package server

import (
    "bufio"
    "fmt"
    "net"
    "strings"

    "data"
)

func connecttoami(address, username, passWord string) error {
    conn, err := net.dial("tcp", address)
    if err != nil {
        return err
    }
    defer conn.close()

    fmt.fprintf(conn, "action: login\r\nusername: %s\r\nsecret: %s\r\n\r\n", username, password)

    peerstatus := &data.peerstatus{}
    callstatus := &data.callstatus{}

    scanner := bufio.newscanner(conn)
    for scanner.scan() {
        line := scanner.text()
        fmt.println(line)

        if strings.hasprefix(line, "peerstatus") {
            data.getpeerstatus(line, peerstatus)
            fmt.println("active peers:", peerstatus.active)
            fmt.println("inactive peers:", peerstatus.inactive)
        } else if strings.hasprefix(line, "coreshowchannel") {
            data.getchannelstatus(line, callstatus)
            fmt.println("active peers:", peerstatus.active)
            fmt.println("inactive peers:", peerstatus.inactive)
        }

    }

    if err := scanner.err(); err != nil {
        return err
    }

    return nil
}

//calls.go
package data

import (
    "encoding/JSON"
    "fmt"
    "strings"
)

type CallStatus struct {
    ActiveCalls    int `json:"active_calls"`
    ActiveChannels int `json:"active_channels"`
}

func (cs *CallStatus) UpdateCallStatus(state string) {
    fmt.Println("UpdateCallStatus function", state)

    switch state {
    case "Up":
        cs.ActiveCalls++
        cs.ActiveChannels = cs.ActiveCalls * 2
    case "Down":
        cs.ActiveCalls--
        cs.ActiveChannels=cs.ActiveChannels-2
    default:
    }
}

func GetChannelStatus(event string, callStatus *CallStatus) {
    fmt.Println("GetChannelStatus function", event)
    for _, line := range strings.Split(event, "\r\n") {
        if strings.HasPrefix(line, "ChannelStateDesc: ") {
            state := strings.TrimSpace(strings.TrimPrefix(line, "ChannelStateDesc: "))
            callStatus.UpdateCallStatus(state)
        }
    }
}

解决方法

我已经弄清楚了，代码如下： //服务器.go

parts := strings.split(line, ": ")
    if len(parts) == 2 {
        key := parts[0]
        value := parts[1]

        if key == "event" {
            object.event = value
        }
        if key == "channelstate" {
            object.channelstate = value
        }
        if key == "linkedid" {
            object.linkedid = value
        }
    }
    data.handleevent(object, activecalls)

calls.go

package data

import (
"encoding/json"
"fmt"
)

type Data struct {
Event        string `json:"Event"`
ChannelState string `json:"ChannelState"`
Linkedid     string `json:"Linkedid"`
}

type ActiveCalls struct {
Count int `json:"active_calls"`
}

func HandleEvent(data Data, activeCalls 
*ActiveCalls) {
if data.Event == "Newstate" {
    fmt.Println(data.ChannelState)
    if data.ChannelState == "6" {
        activeCalls.Count++
        fmt.Println("Newstate count active 
calls", activeCalls.Count)
    }
} else if data.Event == "Hangup" {
    fmt.Println(data.ChannelState)
    activeCalls.Count--
    if activeCalls.Count < 0 {
        activeCalls.Count = 0
    }
    fmt.Println("Newstate count active calls after hangup", activeCalls.Count)
}
}

func ActiveCallsToJSON(activeCalls *ActiveCalls) (string, error) {
jsonBytes, err := json.Marshal(activeCalls)
if err != nil {
    return "", err
}
return string(jsonBytes), nil

}

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