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