code: /*
   * Copyright 2018 Mitsunori Komatsu (komamitsu)
   *
   * 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 org.komamitsu.fluency.fluentd.ingester.sender.retry;
  
  import org.komamitsu.fluency.validation.Validatable;
  import org.komamitsu.fluency.validation.annotation.Min;
  
  public abstract class RetryStrategy
  {
      private final Config config;
  
      protected RetryStrategy(Config config)
      {
          this.config = config;
      }
  
      public abstract int getNextIntervalMillis(int retryCount);
  
      public boolean isRetriedOver(int retryCount)
      {
          return retryCount > config.getMaxRetryCount();
      }
  
      public int getMaxRetryCount()
      {
          return config.getMaxRetryCount();
      }
  
      @Override
      public String toString()
      {
          return "RetryStrategy{" +
                  "config=" + config +
                  '}';
      }
  
      public static class Config
      {
          @Min(0)
          private int maxRetryCount = 7;
  
          public int getMaxRetryCount()
          {
              return maxRetryCount;
          }
  
          public void setMaxRetryCount(int maxRetryCount)
          {
              this.maxRetryCount = maxRetryCount;
          }
  
          @Override
          public String toString()
          {
              return "Config{" +
                      "maxRetryCount=" + maxRetryCount +
                      '}';
          }
      }
  }
  