/*
 * 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.beam.examples.complete.datatokenization.utils;

import java.util.stream.Collectors;
import org.apache.beam.sdk.values.Row;

/** The {@link RowToCsv} class to convert Beam Rows into strings in CSV format. */
public class RowToCsv {

  private final String csvDelimiter;

  public RowToCsv(String csvDelimiter) {
    this.csvDelimiter = csvDelimiter;
  }

  public String getCsvFromRow(Row row) {
    return row.getValues().stream()
        .map(item -> item == null ? "null" : item)
        .map(Object::toString)
        .collect(Collectors.joining(csvDelimiter));
  }
}
