处理获取消息体内容为空时造成的空指针异常

648540858

2022-08-17 59bda74e88ec95890cb13d54aefef38e27411c01

 src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/NotifyRequestProcessor.java

@@ -41,7 +41,7 @@
import java.util.concurrent.ConcurrentLinkedQueue;

/**
 * SIP命令类型： NOTIFY请求
 * SIP命令类型： NOTIFY请求,这是作为上级发送订阅请求后，设备才会响应的
 */
@Component
public class NotifyRequestProcessor extends SIPRequestProcessorParent implements InitializingBean, ISIPRequestProcessor {
@@ -92,41 +92,45 @@
   @Override
   public void process(RequestEvent evt) {
      try {

         taskQueue.offer(new HandlerCatchData(evt, null, null));
         responseAck(evt, Response.OK);
         if (!taskQueueHandlerRun) {
            taskQueueHandlerRun = true;
            taskExecutor.execute(()-> {
                     while (!taskQueue.isEmpty()) {
                        try {
                           HandlerCatchData take = taskQueue.poll();
                           Element rootElement = getRootElement(take.getEvt());
                           String cmd = XmlUtil.getText(rootElement, "CmdType");

                           if (CmdType.CATALOG.equals(cmd)) {
                              logger.info("接收到Catalog通知");
                              processNotifyCatalogList(take.getEvt());
                           } else if (CmdType.ALARM.equals(cmd)) {
                              logger.info("接收到Alarm通知");
                              processNotifyAlarm(take.getEvt());
                           } else if (CmdType.MOBILE_POSITION.equals(cmd)) {
                              logger.info("接收到MobilePosition通知");
                              processNotifyMobilePosition(take.getEvt());
                           } else {
                              logger.info("接收到消息：" + cmd);
                           }
                        } catch (DocumentException e) {
                           throw new RuntimeException(e);
                        }
               while (!taskQueue.isEmpty()) {
                  try {
                     HandlerCatchData take = taskQueue.poll();
                     Element rootElement = getRootElement(take.getEvt());
                     if (rootElement == null) {
                        logger.error("处理NOTIFY消息时未获取到消息体,{}", take.getEvt().getRequest());
                        continue;
                     }
                  taskQueueHandlerRun = false;
                  });
                     String cmd = XmlUtil.getText(rootElement, "CmdType");

                     if (CmdType.CATALOG.equals(cmd)) {
                        logger.info("接收到Catalog通知");
                        processNotifyCatalogList(take.getEvt());
                     } else if (CmdType.ALARM.equals(cmd)) {
                        logger.info("接收到Alarm通知");
                        processNotifyAlarm(take.getEvt());
                     } else if (CmdType.MOBILE_POSITION.equals(cmd)) {
                        logger.info("接收到MobilePosition通知");
                        processNotifyMobilePosition(take.getEvt());
                     } else {
                        logger.info("接收到消息：" + cmd);
                     }
                  } catch (DocumentException e) {
                     logger.error("处理NOTIFY消息时错误", e);
                  } finally {
                     taskQueueHandlerRun = false;
                  }
               }
            });
         }


      } catch (SipException | InvalidArgumentException | ParseException e) {
         e.printStackTrace();
      } finally {
         taskQueueHandlerRun = false;
      }
   }

@@ -142,6 +146,10 @@

         // 回复 200 OK
         Element rootElement = getRootElement(evt);
         if (rootElement == null) {
            logger.error("处理MobilePosition移动位置Notify时未获取到消息体,{}", evt.getRequest());
            return;
         }

         MobilePosition mobilePosition = new MobilePosition();
         mobilePosition.setCreateTime(DateUtil.getNow());
@@ -174,7 +182,7 @@
         } else {
            mobilePosition.setAltitude(0.0);
         }
         logger.info("[收到 移动位置订阅]：{}/{}->{}.{}", mobilePosition.getDeviceId(), mobilePosition.getChannelId(),
         logger.info("[收到移动位置订阅通知]：{}/{}->{}.{}", mobilePosition.getDeviceId(), mobilePosition.getChannelId(),
               mobilePosition.getLongitude(), mobilePosition.getLatitude());
         mobilePosition.setReportSource("Mobile Position");

@@ -198,6 +206,7 @@
         }

         storager.updateChannelPosition(deviceChannel);

         // 发送redis消息。 通知位置信息的变化
         JSONObject jsonObject = new JSONObject();
         jsonObject.put("time", time);
@@ -228,6 +237,10 @@
         String deviceId = SipUtils.getUserIdFromFromHeader(fromHeader);

         Element rootElement = getRootElement(evt);
         if (rootElement == null) {
            logger.error("处理alarm设备报警Notify时未获取到消息体{}", evt.getRequest());
            return;
         }
         Element deviceIdElement = rootElement.element("DeviceID");
         String channelId = deviceIdElement.getText().toString();

@@ -237,6 +250,10 @@
            return;
         }
         rootElement = getRootElement(evt, device.getCharset());
         if (rootElement == null) {
            logger.warn("[ NotifyAlarm ] content cannot be null, {}", evt.getRequest());
            return;
         }
         DeviceAlarm deviceAlarm = new DeviceAlarm();
         deviceAlarm.setDeviceId(deviceId);
         deviceAlarm.setAlarmPriority(XmlUtil.getText(rootElement, "AlarmPriority"));
@@ -272,8 +289,6 @@
            mobilePosition.setLatitude(deviceAlarm.getLatitude());
            mobilePosition.setReportSource("GPS Alarm");



            // 更新device channel 的经纬度
            DeviceChannel deviceChannel = new DeviceChannel();
            deviceChannel.setDeviceId(device.getDeviceId());
@@ -294,6 +309,18 @@
            }

            storager.updateChannelPosition(deviceChannel);
            // 发送redis消息。 通知位置信息的变化
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("time", mobilePosition.getTime());
            jsonObject.put("serial", deviceChannel.getDeviceId());
            jsonObject.put("code", deviceChannel.getChannelId());
            jsonObject.put("longitude", mobilePosition.getLongitude());
            jsonObject.put("latitude", mobilePosition.getLatitude());
            jsonObject.put("altitude", mobilePosition.getAltitude());
            jsonObject.put("direction", mobilePosition.getDirection());
            jsonObject.put("speed", mobilePosition.getSpeed());
            redisCatchStorage.sendMobilePositionMsg(jsonObject);

         }
         // TODO: 需要实现存储报警信息、报警分类

@@ -318,10 +345,14 @@

         Device device = redisCatchStorage.getDevice(deviceId);
         if (device == null || device.getOnline() == 0) {
            logger.warn("[收到 目录订阅]：{}, 但是设备已经离线", (device != null ? device.getDeviceId():"" ));
            logger.warn("[收到目录订阅]：{}, 但是设备已经离线", (device != null ? device.getDeviceId():"" ));
            return;
         }
         Element rootElement = getRootElement(evt, device.getCharset());
         if (rootElement == null) {
            logger.warn("[ 收到目录订阅 ] content cannot be null, {}", evt.getRequest());
            return;
         }
         Element deviceListElement = rootElement.element("DeviceList");
         if (deviceListElement == null) {
            return;
@@ -339,28 +370,28 @@
               Element eventElement = itemDevice.element("Event");
               String event;
               if (eventElement == null) {
                  logger.warn("[收到 目录订阅]：{}, 但是Event为空, 设为默认值 ADD", (device != null ? device.getDeviceId():"" ));
                  logger.warn("[收到目录订阅]：{}, 但是Event为空, 设为默认值 ADD", (device != null ? device.getDeviceId():"" ));
                  event = CatalogEvent.ADD;
               }else {
                  event = eventElement.getText().toUpperCase();
               }
               DeviceChannel channel = XmlUtil.channelContentHander(itemDevice, device, event);
               channel.setDeviceId(device.getDeviceId());
               logger.info("[收到 目录订阅]：{}/{}", device.getDeviceId(), channel.getChannelId());
               logger.info("[收到目录订阅]：{}/{}", device.getDeviceId(), channel.getChannelId());
               switch (event) {
                  case CatalogEvent.ON:
                     // 上线
                     logger.info("收到来自设备【{}】的通道【{}】上线通知", device.getDeviceId(), channel.getChannelId());
                     logger.info("[收到通道上线通知] 来自设备: {}, 通道 {}", device.getDeviceId(), channel.getChannelId());
                     storager.deviceChannelOnline(deviceId, channel.getChannelId());
                     break;
                  case CatalogEvent.OFF :
                     // 离线
                     logger.info("收到来自设备【{}】的通道【{}】离线通知", device.getDeviceId(), channel.getChannelId());
                     logger.info("[收到通道离线通知] 来自设备: {}, 通道 {}", device.getDeviceId(), channel.getChannelId());
                     storager.deviceChannelOffline(deviceId, channel.getChannelId());
                     break;
                  case CatalogEvent.VLOST:
                     // 视频丢失
                     logger.info("收到来自设备【{}】的通道【{}】视频丢失通知", device.getDeviceId(), channel.getChannelId());
                     logger.info("[收到通道视频丢失通知] 来自设备: {}, 通道 {}", device.getDeviceId(), channel.getChannelId());
                     storager.deviceChannelOffline(deviceId, channel.getChannelId());
                     break;
                  case CatalogEvent.DEFECT:
@@ -368,17 +399,17 @@
                     break;
                  case CatalogEvent.ADD:
                     // 增加
                     logger.info("收到来自设备【{}】的增加通道【{}】通知", device.getDeviceId(), channel.getChannelId());
                     logger.info("[收到增加通道通知] 来自设备: {}, 通道 {}", device.getDeviceId(), channel.getChannelId());
                     deviceChannelService.updateChannel(deviceId, channel);
                     break;
                  case CatalogEvent.DEL:
                     // 删除
                     logger.info("收到来自设备【{}】的删除通道【{}】通知", device.getDeviceId(), channel.getChannelId());
                     logger.info("[收到删除通道通知] 来自设备: {}, 通道 {}", device.getDeviceId(), channel.getChannelId());
                     storager.delChannel(deviceId, channel.getChannelId());
                     break;
                  case CatalogEvent.UPDATE:
                     // 更新
                     logger.info("收到来自设备【{}】的更新通道【{}】通知", device.getDeviceId(), channel.getChannelId());
                     logger.info("[收到更新通道通知] 来自设备: {}, 通道 {}", device.getDeviceId(), channel.getChannelId());
                     deviceChannelService.updateChannel(deviceId, channel);
                     break;
                  default: