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.arrow.flight.integration.tests;
  
  import java.nio.charset.StandardCharsets;
  import java.util.Optional;
  import org.apache.arrow.flight.FlightClient;
  import org.apache.arrow.flight.FlightDescriptor;
  import org.apache.arrow.flight.FlightProducer;
  import org.apache.arrow.flight.FlightServer;
  import org.apache.arrow.flight.Location;
  import org.apache.arrow.flight.PollInfo;
  import org.apache.arrow.memory.BufferAllocator;
  
  /** Test PollFlightInfo. */
  final class PollFlightInfoScenario implements Scenario {
    @Override
    public FlightProducer producer(BufferAllocator allocator, Location location) throws Exception {
      return new PollFlightInfoProducer();
    }
  
    @Override
    public void buildServer(FlightServer.Builder builder) throws Exception {}
  
    @Override
    public void client(BufferAllocator allocator, Location location, FlightClient client)
        throws Exception {
      PollInfo info =
          client.pollInfo(FlightDescriptor.command("heavy query".getBytes(StandardCharsets.UTF_8)));
      IntegrationAssertions.assertNotNull(info.getFlightInfo());
      Optional<Double> progress = info.getProgress();
      IntegrationAssertions.assertTrue("progress is missing", progress.isPresent());
      IntegrationAssertions.assertTrue(
          "progress is invalid", progress.get() >= 0.0 && progress.get() <= 1.0);
      IntegrationAssertions.assertTrue("expiration is missing", info.getExpirationTime().isPresent());
      IntegrationAssertions.assertTrue(
          "descriptor is missing", info.getFlightDescriptor().isPresent());
  
      info = client.pollInfo(info.getFlightDescriptor().get());
      IntegrationAssertions.assertNotNull(info.getFlightInfo());
      progress = info.getProgress();
      IntegrationAssertions.assertTrue("progress is missing in finished query", progress.isPresent());
      IntegrationAssertions.assertTrue(
          "progress isn't 1.0 in finished query", Math.abs(progress.get() - 1.0) < Math.ulp(1.0));
      IntegrationAssertions.assertFalse(
          "expiration is set in finished query", info.getExpirationTime().isPresent());
      IntegrationAssertions.assertFalse(
          "descriptor is set in finished query", info.getFlightDescriptor().isPresent());
    }
  }
  