FreeSwitch: ESL Inbound内联模式下如何设置单腿变量

outbound外联模式下,可以参考我先前写的文章:freeswitch: ESL中如何自定义事件及自定义事件的监听,使用export导出变量。但是inbound模式下,ESL client并未封装export命令,如果要给某条腿附加一个变量值,可以借助uuid_setvar命令。

一、命令行验证

1.1 启动freeswitch控制台,手动originate发起呼叫

originate {origination_uuid=abd2d52e-6074-4a46-aa0e-c73d04f566f6}user/1000 &park()

注:外呼freeswitch内置的1000账号,同时指定该腿的uuid为abd2d52e-6074-4a46-aa0e-c73d04f566f6 (前提:要先用一个网络电话程序,以1000账号注册到freeswitch上)

点击Answer接通,保持这条腿的通话

1.2 设置变量

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uuid_setvar abd2d52e-6074-4a46-aa0e-c73d04f566f6 test-var value-a value-b value-c

正常的话,会回显+OK

1.3 获取变量

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uuid_getvar abd2d52e-6074-4a46-aa0e-c73d04f566f6 test-var

输出结果,参考下图:

 

二、ESL Inbound示例代码

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try {
    //inbound test
    final Client inboundClient = new Client();
    inboundClient.connect("localhost"8021"ClueCon"10);
    inboundClient.setEventSubscriptions(EventFormat.PLAIN, "ALL");
    inboundClient.addEventListener(new IInboundEslEventListener() {
 
        @Override
        public void onEslEvent(Context ctx, EslEvent eslEvent) {
            String eventName = eslEvent.getEventName();
            if (eventName.startsWith("CHANNEL")) {
                if (eventName.startsWith("CHANNEL_ANSWER")) {
                    //接通时,设置test变量
                    String uuid = eslEvent.getEventHeaders().get(EslEventConstant.UNIQUE_ID);
                    ctx.sendAsyncApiCommand("uuid_setvar " + uuid + " test 123123123");
                }
                if (eventName.startsWith("CHANNEL_HANGUP_COMPLETE")) {
                    //挂断时,获取test变量
                    String testValue = eslEvent.getEventHeaders().get("variable_test");
                    System.out.println("test:" + testValue);
                }
            }
        }
 
        @Override
        public void onDisconnect(Context ctx, EslMessage eslMsg) {
            System.out.println("message:" + eslMsg);
        }
    });
catch (Exception e) {
    e.printStackTrace();
}

断点调试结果:

posted @ 2023-02-07 17:58  阿风小子  阅读(188)  评论(0编辑  收藏  举报