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.eagleeye;
  
  public abstract class EagleEyeAppender {
  
      public abstract void append(String log);
  
      public void flush() {
          // do nothing
      }
  
      public void rollOver() {
          // do nothing
      }
  
      public void reload() {
          // do nothing
      }
  
      public void close() {
          // do nothing
      }
  
      public void cleanup() {
          // do nothing
      }
  
      public String getOutputLocation() {
          return null;
      }
  }
  