package com.genersoft.iot.vmp.gb28181.transmit.response.impl;
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import java.text.ParseException;
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import javax.sip.*;
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import javax.sip.address.SipURI;
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import javax.sip.header.CSeqHeader;
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import javax.sip.message.Request;
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import javax.sip.message.Response;
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import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;
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import gov.nist.javax.sip.ResponseEventExt;
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import gov.nist.javax.sip.stack.SIPDialog;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import com.genersoft.iot.vmp.conf.SipConfig;
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import com.genersoft.iot.vmp.gb28181.SipLayer;
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import com.genersoft.iot.vmp.gb28181.transmit.response.ISIPResponseProcessor;
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/**
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* @Description:处理INVITE响应
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* @author: swwheihei
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* @date: 2020年5月3日 下午4:43:52
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*/
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@Component
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public class InviteResponseProcessor implements ISIPResponseProcessor {
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private final static Logger logger = LoggerFactory.getLogger(InviteResponseProcessor.class);
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@Autowired
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private VideoStreamSessionManager streamSession;
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/**
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* 处理invite响应
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*
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* @param evt 响应消息
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* @throws ParseException
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*/
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@Override
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public void process(ResponseEvent evt, SipLayer layer, SipConfig config) throws ParseException {
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try {
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Response response = evt.getResponse();
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int statusCode = response.getStatusCode();
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// trying不会回复
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if (statusCode == Response.TRYING) {
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}
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// 成功响应
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// 下发ack
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if (statusCode == Response.OK) {
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ResponseEventExt event = (ResponseEventExt)evt;
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SIPDialog dialog = (SIPDialog)evt.getDialog();
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CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
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Request reqAck = dialog.createAck(cseq.getSeqNumber());
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SipURI requestURI = (SipURI) reqAck.getRequestURI();
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requestURI.setHost(event.getRemoteIpAddress());
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requestURI.setPort(event.getRemotePort());
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reqAck.setRequestURI(requestURI);
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logger.info("向 " + event.getRemoteIpAddress() + ":" + event.getRemotePort() + "回复ack");
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SipURI sipURI = (SipURI)dialog.getRemoteParty().getURI();
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String deviceId = requestURI.getUser();
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String channelId = sipURI.getUser();
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dialog.sendAck(reqAck);
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}
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} catch (InvalidArgumentException | SipException e) {
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e.printStackTrace();
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}
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}
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}
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