添加重试

gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/wvp/WvpService.java

@@ -341,6 +341,8 @@ public class WvpService {
         return deviceChannel;
     }
 
+    @SneakyThrows
+    @SuppressWarnings("UnstableApiUsage")
     public DeferredResult<JsonResponse<String>> realtimeVideoUrl(String deviceCode) {
         DeferredResult<JsonResponse<String>> result = new DeferredResult<>(TimeUnit.SECONDS.toMillis(60));
         result.onTimeout(() -> {
@@ -354,7 +356,25 @@ public class WvpService {
         }
 
         String token = login();
-        Optional<DeviceChannel> deviceChannel =  getDeviceChannelByDeviceCode(token, deviceCode);
+        Retryer<Optional<DeviceChannel>> defaultGenericRetryer = RetryerBuilder.<Optional<DeviceChannel>>newBuilder()
+                // 异常就重试
+                .retryIfException()
+                .retryIfRuntimeException()
+                // 重试间隔
+                .withWaitStrategy(WaitStrategies.fixedWait(3, TimeUnit.SECONDS))
+                // 重试次数
+                .withStopStrategy(StopStrategies.stopAfterAttempt(3))
+                .withRetryListener(new RetryListener() {
+                    @Override
+                    public <V> void onRetry(Attempt<V> attempt) {
+                        if (attempt.hasException()) {
+                            log.info("异常 {}", attempt.getExceptionCause().getMessage());
+                            cache.remove("token");
+                        }
+                    }
+                }).build();
+        Optional<DeviceChannel> deviceChannel = defaultGenericRetryer.call(() -> getDeviceChannelByDeviceCode(token, deviceCode));
+
         if (deviceChannel.isEmpty()) {
             result.setResult(JsonResponse.error(MessageFormat.format("未能获取 设备: {0} 的通道信息", deviceCode)));
             return result;