org.apache.hudi.keygen.NonpartitionedKeyGenerator Maven / Gradle / Ivy

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/*
 * 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.hudi.keygen;

import org.apache.hudi.common.config.TypedProperties;

import org.apache.avro.generic.GenericRecord;
import org.apache.spark.sql.Row;

import java.util.ArrayList;
import java.util.List;

/**
 * Simple Key generator for unpartitioned Hive Tables.
 */
public class NonpartitionedKeyGenerator extends SimpleKeyGenerator {

  private static final String EMPTY_PARTITION = "";
  private static final List EMPTY_PARTITION_FIELD_LIST = new ArrayList<>();

  public NonpartitionedKeyGenerator(TypedProperties props) {
    super(props);
  }

  @Override
  public String getPartitionPath(GenericRecord record) {
    return EMPTY_PARTITION;
  }

  @Override
  public List getPartitionPathFields() {
    return EMPTY_PARTITION_FIELD_LIST;
  }

  @Override
  public String getPartitionPath(Row row) {
    return EMPTY_PARTITION;
  }
}