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.sql;
  
  import com.google.protobuf.Any;
  import org.apache.arrow.flight.FlightProducer;
  import org.apache.arrow.flight.Result;
  import org.apache.arrow.flight.sql.impl.FlightSql;
  
  /** Typed StreamListener for cancelQuery. */
  @SuppressWarnings("deprecation")
  class CancelListener implements FlightProducer.StreamListener<CancelResult> {
    private final FlightProducer.StreamListener<Result> listener;
  
    CancelListener(FlightProducer.StreamListener<Result> listener) {
      this.listener = listener;
    }
  
    @Override
    public void onNext(CancelResult val) {
      FlightSql.ActionCancelQueryResult result =
          FlightSql.ActionCancelQueryResult.newBuilder().setResult(val.toProtocol()).build();
      listener.onNext(new Result(Any.pack(result).toByteArray()));
    }
  
    @Override
    public void onError(Throwable t) {
      listener.onError(t);
    }
  
    @Override
    public void onCompleted() {
      listener.onCompleted();
    }
  }
  