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.Collections;
  import java.util.List;
  import org.apache.arrow.flight.FlightClient;
  import org.apache.arrow.flight.FlightDescriptor;
  import org.apache.arrow.flight.FlightEndpoint;
  import org.apache.arrow.flight.FlightInfo;
  import org.apache.arrow.flight.FlightProducer;
  import org.apache.arrow.flight.FlightServer;
  import org.apache.arrow.flight.Location;
  import org.apache.arrow.flight.NoOpFlightProducer;
  import org.apache.arrow.flight.Ticket;
  import org.apache.arrow.memory.BufferAllocator;
  import org.apache.arrow.vector.types.Types;
  import org.apache.arrow.vector.types.pojo.Field;
  import org.apache.arrow.vector.types.pojo.Schema;
  
  /** Test app_metadata in FlightInfo and FlightEndpoint. */
  final class AppMetadataFlightInfoEndpointScenario implements Scenario {
    @Override
    public FlightProducer producer(BufferAllocator allocator, Location location) throws Exception {
      return new AppMetadataFlightInfoEndpointProducer();
    }
  
    @Override
    public void buildServer(FlightServer.Builder builder) throws Exception {}
  
    @Override
    public void client(BufferAllocator allocator, Location location, FlightClient client)
        throws Exception {
      byte[] cmd = "foobar".getBytes(StandardCharsets.UTF_8);
      FlightInfo info = client.getInfo(FlightDescriptor.command(cmd));
      IntegrationAssertions.assertEquals(info.getAppMetadata(), cmd);
      IntegrationAssertions.assertEquals(info.getEndpoints().size(), 1);
      IntegrationAssertions.assertEquals(info.getEndpoints().get(0).getAppMetadata(), cmd);
    }
  
    /** producer for app_metadata test. */
    static class AppMetadataFlightInfoEndpointProducer extends NoOpFlightProducer {
      @Override
      public FlightInfo getFlightInfo(CallContext context, FlightDescriptor descriptor) {
        byte[] cmd = descriptor.getCommand();
  
        Schema schema =
            new Schema(
                Collections.singletonList(
                    Field.notNullable("number", Types.MinorType.UINT4.getType())));
  
        List<FlightEndpoint> endpoints =
            Collections.singletonList(
                FlightEndpoint.builder(new Ticket("".getBytes(StandardCharsets.UTF_8)))
                    .setAppMetadata(cmd)
                    .build());
  
        return FlightInfo.builder(schema, descriptor, endpoints).setAppMetadata(cmd).build();
      }
    }
  }
  