content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.csp.sentinel.cluster.flow.statistic.data;
  
  /**
   * @author Eric Zhao
   * @since 1.4.0
   */
  public enum ClusterFlowEvent {
  
      /**
       * Normal pass.
       */
      PASS,
      /**
       * Normal block.
       */
      BLOCK,
      /**
       * Token request (from client) passed.
       */
      PASS_REQUEST,
      /**
       * Token request (from client) blocked.
       */
      BLOCK_REQUEST,
      /**
       * Pass (pre-occupy incoming buckets).
       */
      OCCUPIED_PASS,
      /**
       * Block (pre-occupy incoming buckets failed).
       */
      OCCUPIED_BLOCK,
      /**
       * Waiting due to flow shaping or for next bucket tick.
       */
      WAITING
  }
  