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
   *
   *     https://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.avro.mapreduce;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.avro.Schema;
  import org.apache.avro.file.DataFileWriter;
  import org.apache.avro.generic.GenericDatumWriter;
  import org.apache.avro.io.DatumWriter;
  
  /**
   * A utility class for working with Avro container files within tests.
   */
  public final class AvroFiles {
    private AvroFiles() {
    }
  
    /**
     * Creates an avro container file.
     *
     * @param file    The file to create.
     * @param schema  The schema for the records the file should contain.
     * @param records The records to put in the file.
     * @param <T>     The (java) type of the avro records.
     * @return The created file.
     */
    public static <T> File createFile(File file, Schema schema, T... records) throws IOException {
      DatumWriter<T> datumWriter = new GenericDatumWriter<>(schema);
      DataFileWriter<T> fileWriter = new DataFileWriter<>(datumWriter);
      fileWriter.create(schema, file);
      for (T record : records) {
        fileWriter.append(record);
      }
      fileWriter.close();
  
      return file;
    }
  }
  