View Javadoc
1   package fr.ifremer.tutti.service.csv;
2   
3   /*
4    * #%L
5    * Tutti :: Service
6    * $Id:$
7    * $HeadURL:$
8    * %%
9    * Copyright (C) 2012 - 2015 Ifremer
10   * %%
11   * This program is free software: you can redistribute it and/or modify
12   * it under the terms of the GNU General Public License as
13   * published by the Free Software Foundation, either version 3 of the
14   * License, or (at your option) any later version.
15   * 
16   * This program is distributed in the hope that it will be useful,
17   * but WITHOUT ANY WARRANTY; without even the implied warranty of
18   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19   * GNU General Public License for more details.
20   * 
21   * You should have received a copy of the GNU General Public
22   * License along with this program.  If not, see
23   * <http://www.gnu.org/licenses/gpl-3.0.html>.
24   * #L%
25   */
26  
27  import com.google.common.base.Joiner;
28  import org.apache.commons.lang3.StringUtils;
29  import org.nuiton.csv.ValueParserFormatter;
30  
31  import java.text.ParseException;
32  import java.util.ArrayList;
33  import java.util.List;
34  
35  /**
36   * Created on 2/14/15.
37   *
38   * @author Tony Chemit - chemit@codelutin.com
39   * @since 3.14
40   */
41  public abstract class ListParserFormatterSupport<E> implements ValueParserFormatter<List<E>> {
42  
43      private final ValueParserFormatter<E> delegateParserFormatter;
44  
45      protected ListParserFormatterSupport(ValueParserFormatter<E> delegateParserFormatter) {
46          this.delegateParserFormatter = delegateParserFormatter;
47      }
48  
49      @Override
50      public List<E> parse(String value) throws ParseException {
51  
52          List<E> list = new ArrayList<>();
53          if (StringUtils.isNoneBlank(value)) {
54  
55              String[] ids = value.split("\\|");
56              for (String id : ids) {
57  
58                  E entity = delegateParserFormatter.parse(id.trim());
59                  list.add(entity);
60  
61              }
62  
63          }
64          return list;
65  
66      }
67  
68      @Override
69      public String format(List<E> entities) {
70  
71          List<String> ids = new ArrayList<>();
72          for (E entity : entities) {
73              String id = delegateParserFormatter.format(entity);
74              ids.add(id);
75          }
76          return Joiner.on('|').join(ids);
77  
78      }
79  }