content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.apache.cassandra.sidecar.client.retry;
  
  import java.util.concurrent.CompletableFuture;
  
  import io.netty.handler.codec.http.HttpResponseStatus;
  import org.apache.cassandra.sidecar.client.HttpResponse;
  import org.apache.cassandra.sidecar.common.request.Request;
  import org.jetbrains.annotations.VisibleForTesting;
  
  /**
   * A retry policy that ignores status code {@link HttpResponseStatus#CONFLICT} ({@code 409}), and assumes success
   * when that status code is returned by the server.
   */
  public class IgnoreConflictRetryPolicy extends ExponentialBackoffRetryPolicy
  {
      @VisibleForTesting
      IgnoreConflictRetryPolicy()
      {
          super();
      }
  
      /**
       * Constructs a new instance of this class
       *
       * @param maxRetries          the maximum number of retries
       * @param retryDelayMillis    the delay between retries in milliseconds
       * @param maxRetryDelayMillis the maximum retry delay in milliseconds
       */
      public IgnoreConflictRetryPolicy(int maxRetries, long retryDelayMillis, long maxRetryDelayMillis)
      {
          super(maxRetries, retryDelayMillis, maxRetryDelayMillis);
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void onResponse(CompletableFuture<HttpResponse> responseFuture,
                             Request request,
                             HttpResponse response,
                             Throwable throwable,
                             int attempts,
                             boolean canRetryOnADifferentHost,
                             RetryAction retryAction)
      {
          if (response != null && response.statusCode() == HttpResponseStatus.CONFLICT.code())
          {
              responseFuture.complete(response);
          }
          else
          {
              super.onResponse(responseFuture, request, response, throwable, attempts, canRetryOnADifferentHost,
                               retryAction);
          }
      }
  }
  