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;
  
  import java.util.Iterator;
  import java.util.concurrent.CompletableFuture;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.TimeoutException;
  
  import io.vertx.core.Vertx;
  import io.vertx.core.file.FileSystemException;
  import org.apache.cassandra.sidecar.common.request.DownloadableRequest;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * A {@link RequestExecutor} implementation that uses vertx primitives
   */
  public class VertxRequestExecutor extends RequestExecutor
  {
      private final Vertx vertx;
  
      public VertxRequestExecutor(VertxHttpClient httpClient)
      {
          super(httpClient);
          this.vertx = requireNonNull(httpClient.vertx(), "The vertx instance is required");
      }
  
      /**
       * Use vertx's primitives to schedule the delay
       *
       * @param delayMillis the delay before retrying in milliseconds
       * @param runnable    the code to execute
       */
      @Override
      protected void schedule(long delayMillis, Runnable runnable)
      {
          if (delayMillis > 0)
          {
              vertx.setTimer(delayMillis, p -> runnable.run());
          }
          else
          {
              runnable.run();
          }
      }
  
      @Override
      public void close() throws Exception
      {
          super.close();
          try
          {
              vertx.close().toCompletionStage().toCompletableFuture().get(1, TimeUnit.MINUTES);
          }
          catch (InterruptedException | ExecutionException | TimeoutException exception)
          {
              logger.warn("Failed to close vertx after 1 minute", exception);
          }
      }
  
      @Override
      void applyRetryPolicy(CompletableFuture<HttpResponse> future, Iterator<SidecarInstance> iterator, SidecarInstance sidecarInstance, RequestContext context, int attempt, HttpResponse response, Throwable throwable)
      {
          if (context.request() instanceof DownloadableRequest && throwable instanceof FileSystemException)
          {
              // If the request is a downloadable request and the exception is a FileSystemException,
              // then it is an issue with local file system. In this case, we should not retry the request.
              future.completeExceptionally(throwable);
              return;
          }
  
          super.applyRetryPolicy(future, iterator, sidecarInstance, context, attempt, response, throwable);
      }
  }
  