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
   *
   *     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));
    }
  }
  