CopyableGenericRecord.java

/*
 * 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 gobblin.fork;

import org.apache.avro.generic.GenericData;
import org.apache.avro.generic.GenericRecord;


/**
 * A wrapper class for {@link org.apache.avro.generic.GenericRecord}
 * that is also {@link Copyable}.
 *
 * @author Yinan Li
 */
public class CopyableGenericRecord implements Copyable<GenericRecord> {

  private final GenericRecord record;

  public CopyableGenericRecord(GenericRecord record) {
    this.record = record;
  }

  @Override
  public GenericRecord copy()
      throws CopyNotSupportedException {
    if (!(this.record instanceof GenericData.Record)) {
      throw new CopyNotSupportedException(
          "The record to make copy is not an instance of " + GenericData.Record.class.getName());
    }
    // Make a deep copy of the original record
    return new GenericData.Record((GenericData.Record) this.record, true);
  }
}