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Extension to rename Druid dimension values using lookups

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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.druid.server.lookup.jdbc;

import org.skife.jdbi.v2.StatementContext;
import org.skife.jdbi.v2.tweak.ResultSetMapper;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.AbstractMap;
import java.util.Map;


public class KeyValueResultSetMapper implements ResultSetMapper>
{
  private final String keyColumn;
  private final String valueColumn;

  public KeyValueResultSetMapper(String keyColumn, String valueColumn)
  {
    this.keyColumn = keyColumn;
    this.valueColumn = valueColumn;
  }

  @Override
  public Map.Entry map(int index, ResultSet r, StatementContext ctx) throws SQLException
  {
    return new AbstractMap.SimpleEntry<>(r.getString(keyColumn), r.getString(valueColumn));
  }
}