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.adapter.avro.consumers;
  
  import java.io.IOException;
  import java.util.List;
  import org.apache.arrow.util.AutoCloseables;
  import org.apache.arrow.vector.VectorSchemaRoot;
  import org.apache.avro.io.Decoder;
  
  /** Composite consumer which hold all consumers. It manages the consume and cleanup process. */
  public class CompositeAvroConsumer implements AutoCloseable {
  
    private final List<Consumer> consumers;
  
    public List<Consumer> getConsumers() {
      return consumers;
    }
  
    public CompositeAvroConsumer(List<Consumer> consumers) {
      this.consumers = consumers;
    }
  
    /** Consume decoder data. */
    public void consume(Decoder decoder) throws IOException {
      for (Consumer consumer : consumers) {
        consumer.consume(decoder);
      }
    }
  
    /** Reset vector of consumers with the given {@link VectorSchemaRoot}. */
    public void resetConsumerVectors(VectorSchemaRoot root) {
      int index = 0;
      for (Consumer consumer : consumers) {
        if (consumer.resetValueVector(root.getFieldVectors().get(index))) {
          index++;
        }
      }
    }
  
    @Override
    public void close() {
      // clean up
      try {
        AutoCloseables.close(consumers);
      } catch (Exception e) {
        throw new RuntimeException("Error occurs in close.", e);
      }
    }
  }
  