Esempio n. 1
0
  @SuppressWarnings({"ThrowableResultOfMethodCallIgnored"})
  <DATA_TYPE> void processBackgroundOperation(
      OperationAndData<DATA_TYPE> operationAndData, CuratorEvent event) {
    boolean isInitialExecution = (event == null);
    if (isInitialExecution) {
      performBackgroundOperation(operationAndData);
      return;
    }

    boolean doQueueOperation = false;
    do {
      if (RetryLoop.shouldRetry(event.getResultCode())) {
        if (client
            .getRetryPolicy()
            .allowRetry(
                operationAndData.getThenIncrementRetryCount(),
                operationAndData.getElapsedTimeMs(),
                operationAndData)) {
          doQueueOperation = true;
        } else {
          if (operationAndData.getErrorCallback() != null) {
            operationAndData.getErrorCallback().retriesExhausted(operationAndData);
          }

          KeeperException.Code code = KeeperException.Code.get(event.getResultCode());
          Exception e = null;
          try {
            e = (code != null) ? KeeperException.create(code) : null;
          } catch (Throwable ignore) {
          }
          if (e == null) {
            e = new Exception("Unknown result code: " + event.getResultCode());
          }
          logError("Background operation retry gave up", e);
        }
        break;
      }

      if (operationAndData.getCallback() != null) {
        sendToBackgroundCallback(operationAndData, event);
        break;
      }

      processEvent(event);
    } while (false);

    if (doQueueOperation) {
      queueOperation(operationAndData);
    }
  }
Esempio n. 2
0
 private void validateConnection(CuratorEvent curatorEvent) {
   if (curatorEvent.getType() == CuratorEventType.WATCHED) {
     if (curatorEvent.getWatchedEvent().getState() == Watcher.Event.KeeperState.Disconnected) {
       connectionStateManager.addStateChange(ConnectionState.SUSPENDED);
       internalSync(
           this, "/",
           null); // we appear to have disconnected, force a new ZK event and see if we can connect
                  // to another server
     } else if (curatorEvent.getWatchedEvent().getState() == Watcher.Event.KeeperState.Expired) {
       connectionStateManager.addStateChange(ConnectionState.LOST);
     } else if (curatorEvent.getWatchedEvent().getState()
         == Watcher.Event.KeeperState.SyncConnected) {
       connectionStateManager.addStateChange(ConnectionState.RECONNECTED);
     } else if (curatorEvent.getWatchedEvent().getState()
         == Watcher.Event.KeeperState.ConnectedReadOnly) {
       connectionStateManager.addStateChange(ConnectionState.READ_ONLY);
     }
   }
 }