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| | |
| | | import org.springframework.stereotype.Component; |
| | | import org.springframework.web.servlet.mvc.method.annotation.SseEmitter; |
| | | import java.io.IOException; |
| | | import java.util.Hashtable; |
| | | import java.util.Iterator; |
| | | import java.util.Map; |
| | | |
| | | import org.slf4j.Logger; |
| | | import org.slf4j.LoggerFactory; |
| | | |
| | |
| | | |
| | | private final static Logger logger = LoggerFactory.getLogger(AlarmEventListener.class); |
| | | |
| | | private static SseEmitter emitter = new SseEmitter(); |
| | | private static Map<String, SseEmitter> sseEmitters = new Hashtable<>(); |
| | | |
| | | public void addSseEmitters(SseEmitter sseEmitter) { |
| | | emitter = sseEmitter; |
| | | public void addSseEmitters(String browserId, SseEmitter sseEmitter) { |
| | | sseEmitters.put(browserId, sseEmitter); |
| | | } |
| | | |
| | | @Override |
| | |
| | | logger.debug("设备报警事件触发,deviceId:" + event.getAlarmInfo().getDeviceId() + ", " |
| | | + event.getAlarmInfo().getAlarmDescription()); |
| | | } |
| | | try { |
| | | String msg = "<strong>设备编码:</strong> <i>" + event.getAlarmInfo().getDeviceId() + "</i>" |
| | | + "<br><strong>报警描述:</strong> <i>" + event.getAlarmInfo().getAlarmDescription() + "</i>" |
| | | + "<br><strong>报警时间:</strong> <i>" + event.getAlarmInfo().getAlarmTime() + "</i>" |
| | | + "<br><strong>定位经度:</strong> <i>" + event.getAlarmInfo().getLongitude() + "</i>" |
| | | + "<br><strong>定位纬度:</strong> <i>" + event.getAlarmInfo().getLatitude() + "</i>"; |
| | | emitter.send(msg); |
| | | } catch (IOException e) { |
| | | if (logger.isDebugEnabled()) { |
| | | logger.debug("SSE 通道已关闭"); |
| | | String msg = "<strong>设备编码:</strong> <i>" + event.getAlarmInfo().getDeviceId() + "</i>" |
| | | + "<br><strong>报警描述:</strong> <i>" + event.getAlarmInfo().getAlarmDescription() + "</i>" |
| | | + "<br><strong>报警时间:</strong> <i>" + event.getAlarmInfo().getAlarmTime() + "</i>" |
| | | + "<br><strong>报警位置:</strong> <i>" + event.getAlarmInfo().getLongitude() + "</i>" |
| | | + ", <i>" + event.getAlarmInfo().getLatitude() + "</i>"; |
| | | |
| | | for (Iterator<Map.Entry<String, SseEmitter>> it = sseEmitters.entrySet().iterator(); it.hasNext();) { |
| | | Map.Entry<String, SseEmitter> emitter = it.next(); |
| | | logger.info("推送到SSE连接,浏览器ID: " + emitter.getKey()); |
| | | try { |
| | | emitter.getValue().send(msg); |
| | | } catch (IOException | IllegalStateException e) { |
| | | if (logger.isDebugEnabled()) { |
| | | logger.debug("SSE连接已关闭"); |
| | | } |
| | | // 移除已关闭的连接 |
| | | it.remove(); |
| | | } |
| | | // e.printStackTrace(); |
| | | } |
| | | } |
| | | } |