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package com.genersoft.iot.vmp.gb28181.transmit.request.impl;
 
import javax.sip.address.SipURI;
import javax.sip.Dialog;
import javax.sip.DialogState;
import javax.sip.InvalidArgumentException;
import javax.sip.RequestEvent;
import javax.sip.SipException;
import javax.sip.header.FromHeader;
import javax.sip.header.HeaderAddress;
import javax.sip.header.ToHeader;
import javax.sip.message.Response;
 
import com.genersoft.iot.vmp.gb28181.bean.SendRtpItem;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.ISIPCommander;
import com.genersoft.iot.vmp.gb28181.transmit.request.SIPRequestAbstractProcessor;
import com.genersoft.iot.vmp.media.zlm.ZLMRTPServerFactory;
import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
import com.genersoft.iot.vmp.service.IMediaServerService;
import com.genersoft.iot.vmp.storager.IRedisCatchStorage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
 
import java.text.ParseException;
import java.util.HashMap;
import java.util.Map;
 
/**    
 * @Description: BYE请求处理器
 * @author: lawrencehj
 * @date:   2021年3月9日     
 */
public class ByeRequestProcessor extends SIPRequestAbstractProcessor {
 
    private Logger logger = LoggerFactory.getLogger(ByeRequestProcessor.class);
 
    private ISIPCommander cmder;
 
    private IRedisCatchStorage redisCatchStorage;
 
    private ZLMRTPServerFactory zlmrtpServerFactory;
 
    private IMediaServerService mediaServerService;
 
    /**
     * 处理BYE请求
     * @param evt
     */
    @Override
    public void process(RequestEvent evt) {
        try {
            responseAck(evt);
            Dialog dialog = evt.getDialog();
            if (dialog == null) return;
            if (dialog.getState().equals(DialogState.TERMINATED)) {
                String platformGbId = ((SipURI) ((HeaderAddress) evt.getRequest().getHeader(FromHeader.NAME)).getAddress().getURI()).getUser();
                String channelId = ((SipURI) ((HeaderAddress) evt.getRequest().getHeader(ToHeader.NAME)).getAddress().getURI()).getUser();
                SendRtpItem sendRtpItem =  redisCatchStorage.querySendRTPServer(platformGbId, channelId);
                if (sendRtpItem == null) return;
                String streamId = sendRtpItem.getStreamId();
                Map<String, Object> param = new HashMap<>();
                param.put("vhost","__defaultVhost__");
                param.put("app",sendRtpItem.getApp());
                param.put("stream",streamId);
                param.put("ssrc",sendRtpItem.getSsrc());
                logger.info("停止向上级推流:" + streamId);
                MediaServerItem mediaInfo = mediaServerService.getOne(sendRtpItem.getMediaServerId());
                zlmrtpServerFactory.stopSendRtpStream(mediaInfo, param);
                redisCatchStorage.deleteSendRTPServer(platformGbId, channelId);
                if (zlmrtpServerFactory.totalReaderCount(mediaInfo, sendRtpItem.getApp(), streamId) == 0) {
                    logger.info(streamId + "无其它观看者,通知设备停止推流");
                    cmder.streamByeCmd(sendRtpItem.getDeviceId(), channelId);
                }
            }
        } catch (SipException e) {
            e.printStackTrace();
        } catch (InvalidArgumentException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }
 
    /***
     * 回复200 OK
     * @param evt
     * @throws SipException
     * @throws InvalidArgumentException
     * @throws ParseException
     */
    private void responseAck(RequestEvent evt) throws SipException, InvalidArgumentException, ParseException {
        Response response = getMessageFactory().createResponse(Response.OK, evt.getRequest());
        getServerTransaction(evt).sendResponse(response);
    }
 
    public IRedisCatchStorage getRedisCatchStorage() {
        return redisCatchStorage;
    }
 
    public void setRedisCatchStorage(IRedisCatchStorage redisCatchStorage) {
        this.redisCatchStorage = redisCatchStorage;
    }
 
    public ZLMRTPServerFactory getZlmrtpServerFactory() {
        return zlmrtpServerFactory;
    }
 
    public void setZlmrtpServerFactory(ZLMRTPServerFactory zlmrtpServerFactory) {
        this.zlmrtpServerFactory = zlmrtpServerFactory;
    }
 
    public ISIPCommander getSIPCommander() {
        return cmder;
    }
 
    public void setSIPCommander(ISIPCommander cmder) {
        this.cmder = cmder;
    }
 
    public IMediaServerService getMediaServerService() {
        return mediaServerService;
    }
 
    public void setMediaServerService(IMediaServerService mediaServerService) {
        this.mediaServerService = mediaServerService;
    }
}