1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.upgrade.util;
24  
25  import com.liferay.portal.kernel.util.GetterUtil;
26  import com.liferay.portal.upgrade.StagnantRowException;
27  
28  /**
29   * <a href="DefaultPKMapper.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   *
33   */
34  public class DefaultPKMapper extends ValueMapperWrapper {
35  
36      public DefaultPKMapper(ValueMapper valueMapper) {
37          super(valueMapper);
38      }
39  
40      public Object getNewValue(Object oldValue) throws Exception {
41          String oldValueString = GetterUtil.getString(
42              String.valueOf(oldValue));
43  
44          if (oldValueString.equals("-1") || oldValueString.equals("0") ||
45              oldValueString.equals("")) {
46  
47              return new Long(0);
48          }
49          else {
50              try {
51                  ValueMapper valueMapper = getValueMapper();
52  
53                  return valueMapper.getNewValue(oldValue);
54              }
55              catch (StagnantRowException sre) {
56                  return new Long(0);
57              }
58          }
59      }
60  
61  }