对需要向设备发起请求的http请求，使用缓存，等待设备请求返回的时候一次性释放所有请求

648540858

2021-11-02 3b21f385cdae7d94fce1ebba6abb06a893f57114

 src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/playback/PlaybackController.java

@@ -76,9 +76,9 @@
      if (logger.isDebugEnabled()) {
         logger.debug(String.format("设备回放 API调用，deviceId：%s ，channelId：%s", deviceId, channelId));
      }
      UUID uuid = UUID.randomUUID();
      String uuid = UUID.randomUUID().toString();
      String key = DeferredResultHolder.CALLBACK_CMD_PLAY + deviceId + channelId + startTime + endTime;
      DeferredResult<ResponseEntity<String>> result = new DeferredResult<ResponseEntity<String>>(30000L);

      Device device = storager.queryVideoDevice(deviceId);
      if (device == null) {
         result.setResult(new ResponseEntity<>(HttpStatus.BAD_REQUEST));
@@ -91,7 +91,8 @@
      result.onTimeout(()->{
         logger.warn(String.format("设备回放超时，deviceId：%s ，channelId：%s", deviceId, channelId));
         RequestMessage msg = new RequestMessage();
         msg.setId(DeferredResultHolder.CALLBACK_CMD_PLAY + uuid);
         msg.setId(uuid);
         msg.setKey(key);
         msg.setData("Timeout");
         resultHolder.invokeResult(msg);
      });
@@ -101,12 +102,13 @@
         // 停止之前的回放
         cmder.streamByeCmd(deviceId, channelId);
      }
      resultHolder.put(DeferredResultHolder.CALLBACK_CMD_PLAY + uuid, result);
      resultHolder.put(DeferredResultHolder.CALLBACK_CMD_PLAY + deviceId + channelId + startTime + endTime, uuid, result);

      if (newMediaServerItem == null) {
         logger.warn(String.format("设备回放超时，deviceId：%s ，channelId：%s", deviceId, channelId));
         RequestMessage msg = new RequestMessage();
         msg.setId(DeferredResultHolder.CALLBACK_CMD_PLAY + uuid);
         msg.setId(uuid);
         msg.setKey(key);
         msg.setData("Timeout");
         resultHolder.invokeResult(msg);
         return result;
@@ -118,7 +120,8 @@
      }, event -> {
         Response response = event.getResponse();
         RequestMessage msg = new RequestMessage();
         msg.setId(DeferredResultHolder.CALLBACK_CMD_PLAY + uuid);
         msg.setId(uuid);
         msg.setKey(key);
         msg.setData(String.format("回放失败， 错误码： %s, %s", response.getStatusCode(), response.getReasonPhrase()));
         resultHolder.invokeResult(msg);
      });