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.demo.slot;
  
  import com.alibaba.csp.sentinel.Entry;
  import com.alibaba.csp.sentinel.SphU;
  import com.alibaba.csp.sentinel.slots.block.BlockException;
  
  /**
   * Demo for adding custom slot.
   * @see {@link DemoSlot}.
   *
   * @author Eric Zhao
   * @author cdfive
   */
  public class DemoApplication {
  
      public static void main(String[] args) {
          Entry entry = null;
          try {
              entry = SphU.entry("abc");
          } catch (BlockException ex) {
              ex.printStackTrace();
          } finally {
              if (entry != null) {
                  entry.exit();
              }
          }
      }
  }
  