648540858
2020-10-16 1947edb69af115eed2cbb4b2b9f60075fce18cbb
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package com.genersoft.iot.vmp.gb28181.transmit.request.impl;
 
import java.io.ByteArrayInputStream;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
 
import javax.sip.InvalidArgumentException;
import javax.sip.RequestEvent;
import javax.sip.SipException;
import javax.sip.message.Request;
import javax.sip.message.Response;
 
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
 
import com.genersoft.iot.vmp.common.VideoManagerConstants;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.bean.DeviceChannel;
import com.genersoft.iot.vmp.gb28181.bean.RecordInfo;
import com.genersoft.iot.vmp.gb28181.bean.RecordItem;
import com.genersoft.iot.vmp.gb28181.event.DeviceOffLineDetector;
import com.genersoft.iot.vmp.gb28181.event.EventPublisher;
import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;
import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;
import com.genersoft.iot.vmp.gb28181.transmit.request.SIPRequestAbstractProcessor;
import com.genersoft.iot.vmp.gb28181.utils.DateUtil;
import com.genersoft.iot.vmp.gb28181.utils.XmlUtil;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
import com.genersoft.iot.vmp.utils.redis.RedisUtil;
 
/**    
 * @Description:MESSAGE请求处理器
 * @author: swwheihei
 * @date:   2020年5月3日 下午5:32:41     
 */
public class MessageRequestProcessor extends SIPRequestAbstractProcessor {
    
    private final static Logger logger = LoggerFactory.getLogger(MessageRequestProcessor.class);
    
    private SIPCommander cmder;
    
    private IVideoManagerStorager storager;
    
    private EventPublisher publisher;
    
    private RedisUtil redis;
    
    private DeferredResultHolder deferredResultHolder;
    
    private DeviceOffLineDetector offLineDetector;
    
    private final static String CACHE_RECORDINFO_KEY = "CACHE_RECORDINFO_";
    
    private static final String MESSAGE_KEEP_ALIVE = "Keepalive";
    private static final String MESSAGE_CONFIG_DOWNLOAD = "ConfigDownload";
    private static final String MESSAGE_CATALOG = "Catalog";
    private static final String MESSAGE_DEVICE_INFO = "DeviceInfo";
    private static final String MESSAGE_ALARM = "Alarm";
    private static final String MESSAGE_RECORD_INFO = "RecordInfo";
//    private static final String MESSAGE_BROADCAST = "Broadcast";
//    private static final String MESSAGE_DEVICE_STATUS = "DeviceStatus";
//    private static final String MESSAGE_MOBILE_POSITION = "MobilePosition";
//    private static final String MESSAGE_MOBILE_POSITION_INTERVAL = "Interval";
    
    /**   
     * 处理MESSAGE请求
     *  
     * @param evt
     */  
    @Override
    public void process(RequestEvent evt) {
 
        try {
            Element rootElement = getRootElement(evt);
            String cmd = XmlUtil.getText(rootElement,"CmdType");
 
            if (MESSAGE_KEEP_ALIVE.equals(cmd)) {
                logger.info("接收到KeepAlive消息");
                processMessageKeepAlive(evt);
            } else if (MESSAGE_CONFIG_DOWNLOAD.equals(cmd)) {
                logger.info("接收到ConfigDownload消息");
            } else if (MESSAGE_CATALOG.equals(cmd)) {
                logger.info("接收到Catalog消息");
                processMessageCatalogList(evt);
            } else if (MESSAGE_DEVICE_INFO.equals(cmd)) {
                logger.info("接收到DeviceInfo消息");
                processMessageDeviceInfo(evt);
            } else if (MESSAGE_ALARM.equals(cmd)) {
                logger.info("接收到Alarm消息");
                processMessageAlarm(evt);
            } else if (MESSAGE_RECORD_INFO.equals(cmd)) {
                logger.info("接收到RecordInfo消息");
                processMessageRecordInfo(evt);
            }
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }
    
    /**
     * 收到deviceInfo设备信息请求 处理
     * @param evt
     */
    private void processMessageDeviceInfo(RequestEvent evt) {
        try {
            Element rootElement = getRootElement(evt);
            Element deviceIdElement = rootElement.element("DeviceID");
            String deviceId = deviceIdElement.getText().toString();
            
            Device device = storager.queryVideoDevice(deviceId);
            if (device == null) {
                return;
            }
            device.setName(XmlUtil.getText(rootElement,"DeviceName"));
            device.setManufacturer(XmlUtil.getText(rootElement,"Manufacturer"));
            device.setModel(XmlUtil.getText(rootElement,"Model"));
            device.setFirmware(XmlUtil.getText(rootElement,"Firmware"));
            storager.updateDevice(device);
            
            RequestMessage msg = new RequestMessage();
            msg.setDeviceId(deviceId);
            msg.setType(DeferredResultHolder.CALLBACK_CMD_DEVICEINFO);
            msg.setData(device);
            deferredResultHolder.invokeResult(msg);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }
    
    /***
     * 收到catalog设备目录列表请求 处理
     * @param evt
     */
    private void processMessageCatalogList(RequestEvent evt) {
        try {
            Element rootElement = getRootElement(evt);
            Element deviceIdElement = rootElement.element("DeviceID");
            String deviceId = deviceIdElement.getText();
            Element deviceListElement = rootElement.element("DeviceList");
            if (deviceListElement == null) {
                return;
            }
            Iterator<Element> deviceListIterator = deviceListElement.elementIterator();
            if (deviceListIterator != null) {
                Device device = storager.queryVideoDevice(deviceId);
                if (device == null) {
                    return;
                }
                // 遍历DeviceList
                while (deviceListIterator.hasNext()) {
                    Element itemDevice = deviceListIterator.next();
                    Element channelDeviceElement = itemDevice.element("DeviceID");
                    if (channelDeviceElement == null) {
                        continue;
                    }
                    String channelDeviceId = channelDeviceElement.getText();
                    Element channdelNameElement = itemDevice.element("Name");
                    String channelName = channdelNameElement != null ? channdelNameElement.getTextTrim().toString() : "";
                    Element statusElement = itemDevice.element("Status");
                    String status = statusElement != null ? statusElement.getText().toString() : "ON";
                    DeviceChannel deviceChannel = new DeviceChannel();
                    deviceChannel.setName(channelName);
                    deviceChannel.setChannelId(channelDeviceId);
                    if(status.equals("ON") || status.equals("On")) {
                        deviceChannel.setStatus(1);
                    }
                    if(status.equals("OFF") || status.equals("Off")) {
                        deviceChannel.setStatus(0);
                    }
 
                    deviceChannel.setManufacture(XmlUtil.getText(itemDevice,"Manufacturer"));
                    deviceChannel.setModel(XmlUtil.getText(itemDevice,"Model"));
                    deviceChannel.setOwner(XmlUtil.getText(itemDevice,"Owner"));
                    deviceChannel.setCivilCode(XmlUtil.getText(itemDevice,"CivilCode"));
                    deviceChannel.setBlock(XmlUtil.getText(itemDevice,"Block"));
                    deviceChannel.setAddress(XmlUtil.getText(itemDevice,"Address"));
                    deviceChannel.setParental(itemDevice.element("Parental") == null? 0:Integer.parseInt(XmlUtil.getText(itemDevice,"Parental")));
                    deviceChannel.setParentId(XmlUtil.getText(itemDevice,"ParentID"));
                    deviceChannel.setSafetyWay(itemDevice.element("SafetyWay") == null? 0:Integer.parseInt(XmlUtil.getText(itemDevice,"SafetyWay")));
                    deviceChannel.setRegisterWay(itemDevice.element("RegisterWay") == null? 1:Integer.parseInt(XmlUtil.getText(itemDevice,"RegisterWay")));
                    deviceChannel.setCertNum(XmlUtil.getText(itemDevice,"CertNum"));
                    deviceChannel.setCertifiable(itemDevice.element("Certifiable") == null? 0:Integer.parseInt(XmlUtil.getText(itemDevice,"Certifiable")));
                    deviceChannel.setErrCode(itemDevice.element("ErrCode") == null? 0:Integer.parseInt(XmlUtil.getText(itemDevice,"ErrCode")));
                    deviceChannel.setEndTime(XmlUtil.getText(itemDevice,"EndTime"));
                    deviceChannel.setSecrecy(XmlUtil.getText(itemDevice,"Secrecy"));
                    deviceChannel.setIpAddress(XmlUtil.getText(itemDevice,"IPAddress"));
                    deviceChannel.setPort(itemDevice.element("Port") == null? 0:Integer.parseInt(XmlUtil.getText(itemDevice,"Port")));
                    deviceChannel.setPassword(XmlUtil.getText(itemDevice,"Password"));
                    deviceChannel.setLongitude(itemDevice.element("Longitude") == null? 0.00:Double.parseDouble(XmlUtil.getText(itemDevice,"Longitude")));
                    deviceChannel.setLatitude(itemDevice.element("Latitude") == null? 0.00:Double.parseDouble(XmlUtil.getText(itemDevice,"Latitude")));
                    deviceChannel.setPTZType(itemDevice.element("PTZType") == null? 0:Integer.parseInt(XmlUtil.getText(itemDevice,"PTZType")));
                    deviceChannel.setHasAudio(false); // 默认含有音频为false
                    storager.updateChannel(device.getDeviceId(), deviceChannel);
                }
                // 更新
                storager.updateDevice(device);
 
                RequestMessage msg = new RequestMessage();
                msg.setDeviceId(deviceId);
                msg.setType(DeferredResultHolder.CALLBACK_CMD_CATALOG);
                msg.setData(device);
                deferredResultHolder.invokeResult(msg);
 
                // 回复200
                if (offLineDetector.isOnline(deviceId)) {
                    responseAck(evt);
                    publisher.onlineEventPublish(deviceId, VideoManagerConstants.EVENT_ONLINE_KEEPLIVE);
                }
 
            }
        } catch (DocumentException | SipException | InvalidArgumentException | ParseException e) {
            e.printStackTrace();
        }
    }
    
    /***
     * 收到alarm设备报警信息 处理
     * @param evt
     */
    private void processMessageAlarm(RequestEvent evt) {
        try {
            Element rootElement = getRootElement(evt);
            Element deviceIdElement = rootElement.element("DeviceID");
            String deviceId = deviceIdElement.getText().toString();
            
            Device device = storager.queryVideoDevice(deviceId);
            if (device == null) {
                // TODO 也可能是通道
//                storager.queryChannel(deviceId)
                return;
            }
            device.setName(XmlUtil.getText(rootElement,"DeviceName"));
            device.setManufacturer(XmlUtil.getText(rootElement,"Manufacturer"));
            device.setModel(XmlUtil.getText(rootElement,"Model"));
            device.setFirmware(XmlUtil.getText(rootElement,"Firmware"));
            storager.updateDevice(device);
            cmder.catalogQuery(device);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }
    
    /***
     * 收到keepalive请求 处理
     * @param evt
     */
    private void processMessageKeepAlive(RequestEvent evt){
        try {
            Element rootElement = getRootElement(evt);
            String deviceId = XmlUtil.getText(rootElement,"DeviceID");
            if (offLineDetector.isOnline(deviceId)) {
                responseAck(evt);
                publisher.onlineEventPublish(deviceId, VideoManagerConstants.EVENT_ONLINE_KEEPLIVE);
            } else {
            }
        } catch (ParseException | SipException | InvalidArgumentException | DocumentException e) {
            e.printStackTrace();
        }
    }
    
    /***
     * 收到catalog设备目录列表请求 处理
     * TODO 过期时间暂时写死180秒,后续与DeferredResult超时时间保持一致
     * @param evt
     */
    private void processMessageRecordInfo(RequestEvent evt) {
        try {
            RecordInfo recordInfo = new RecordInfo();
            Element rootElement = getRootElement(evt);
            Element deviceIdElement = rootElement.element("DeviceID");
            String deviceId = deviceIdElement.getText().toString();
            recordInfo.setDeviceId(deviceId);
            recordInfo.setName(XmlUtil.getText(rootElement,"Name"));
            recordInfo.setSumNum(Integer.parseInt(XmlUtil.getText(rootElement,"SumNum")));
            String sn = XmlUtil.getText(rootElement,"SN");
            Element recordListElement = rootElement.element("RecordList");
            if (recordListElement == null) {
                return;
            }
            
            Iterator<Element> recordListIterator = recordListElement.elementIterator();
            List<RecordItem> recordList = new ArrayList<RecordItem>();
            if (recordListIterator != null) {
                RecordItem record = new RecordItem();
                // 遍历DeviceList
                while (recordListIterator.hasNext()) {
                    Element itemRecord = recordListIterator.next();
                    Element recordElement = itemRecord.element("DeviceID");
                    if (recordElement == null) {
                        continue;
                    }
                    record = new RecordItem();
                    record.setDeviceId(XmlUtil.getText(itemRecord,"DeviceID"));
                    record.setName(XmlUtil.getText(itemRecord,"Name"));
                    record.setFilePath(XmlUtil.getText(itemRecord,"FilePath"));
                    record.setAddress(XmlUtil.getText(itemRecord,"Address"));
                    record.setStartTime(DateUtil.ISO8601Toyyyy_MM_dd_HH_mm_ss(XmlUtil.getText(itemRecord,"StartTime")));
                    record.setEndTime(DateUtil.ISO8601Toyyyy_MM_dd_HH_mm_ss(XmlUtil.getText(itemRecord,"EndTime")));
                    record.setSecrecy(itemRecord.element("Secrecy") == null? 0:Integer.parseInt(XmlUtil.getText(itemRecord,"Secrecy")));
                    record.setType(XmlUtil.getText(itemRecord,"Type"));
                    record.setRecorderId(XmlUtil.getText(itemRecord,"RecorderID"));
                    recordList.add(record);
                }
                recordInfo.setRecordList(recordList);
            }
            
            // 存在录像且如果当前录像明细个数小于总条数,说明拆包返回,需要组装,暂不返回
            if (recordInfo.getSumNum() > 0 && recordList.size() > 0 && recordList.size() < recordInfo.getSumNum()) {
                // 为防止连续请求该设备的录像数据,返回数据错乱,特增加sn进行区分
                String cacheKey = CACHE_RECORDINFO_KEY+deviceId+sn;
                // TODO 暂时直接操作redis存储,后续封装专用缓存接口,改为本地内存缓存
                if (redis.hasKey(cacheKey)) {
                    List<RecordItem> previousList = (List<RecordItem>) redis.get(cacheKey);
                    if (previousList != null && previousList.size() > 0) {
                        recordList.addAll(previousList);
                    }
                    // 本分支表示录像列表被拆包,且加上之前的数据还是不够,保存缓存返回,等待下个包再处理
                    if (recordList.size() < recordInfo.getSumNum()) {
                        redis.set(cacheKey, recordList, 180);
                        return;
                    } else {
                        // 本分支表示录像被拆包,但加上之前的数据够足够,返回响应
                        // 因设备心跳有监听redis过期机制,为提高性能,此处手动删除
                        redis.del(cacheKey);
                    }
                } else {
                    // 本分支有两种可能:1、录像列表被拆包,且是第一个包,直接保存缓存返回,等待下个包再处理
                    //             2、之前有包,但超时清空了,那么这次sn批次的响应数据已经不完整,等待过期时间后redis自动清空数据
                    redis.set(cacheKey, recordList, 180);
                    return;
                }
                
            }
            // 走到这里,有以下可能:1、没有录像信息,第一次收到recordinfo的消息即返回响应数据,无redis操作
            //               2、有录像数据,且第一次即收到完整数据,返回响应数据,无redis操作
            //                 3、有录像数据,在超时时间内收到多次包组装后数量足够,返回数据
            RequestMessage msg = new RequestMessage();
            msg.setDeviceId(deviceId);
            msg.setType(DeferredResultHolder.CALLBACK_CMD_RECORDINFO);
            msg.setData(recordInfo);
            deferredResultHolder.invokeResult(msg);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
    }
    
    private void responseAck(RequestEvent evt) throws SipException, InvalidArgumentException, ParseException {
        Response response = getMessageFactory().createResponse(Response.OK,evt.getRequest());
        getServerTransaction(evt).sendResponse(response);
    }
    
    private Element getRootElement(RequestEvent evt) throws DocumentException {
        Request request = evt.getRequest();
        SAXReader reader = new SAXReader();
        reader.setEncoding("gbk");
        Document xml = reader.read(new ByteArrayInputStream(request.getRawContent()));
        return xml.getRootElement();
    }
 
    public void setCmder(SIPCommander cmder) {
        this.cmder = cmder;
    }
 
    public void setStorager(IVideoManagerStorager storager) {
        this.storager = storager;
    }
 
    public void setPublisher(EventPublisher publisher) {
        this.publisher = publisher;
    }
 
    public void setRedis(RedisUtil redis) {
        this.redis = redis;
    }
 
    public void setDeferredResultHolder(DeferredResultHolder deferredResultHolder) {
        this.deferredResultHolder = deferredResultHolder;
    }
 
    public void setOffLineDetector(DeviceOffLineDetector offLineDetector) {
        this.offLineDetector = offLineDetector;
    }
 
}