1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.upgrade.util;
21  
22  import com.liferay.portal.kernel.util.GetterUtil;
23  import com.liferay.portal.upgrade.StagnantRowException;
24  
25  /**
26   * <a href="DefaultPKMapper.java.html"><b><i>View Source</i></b></a>
27   *
28   * @author Brian Wing Shun Chan
29   *
30   */
31  public class DefaultPKMapper extends ValueMapperWrapper {
32  
33      public DefaultPKMapper(ValueMapper valueMapper) {
34          super(valueMapper);
35      }
36  
37      public Object getNewValue(Object oldValue) throws Exception {
38          String oldValueString = GetterUtil.getString(
39              String.valueOf(oldValue));
40  
41          if (oldValueString.equals("-1") || oldValueString.equals("0") ||
42              oldValueString.equals("")) {
43  
44              return new Long(0);
45          }
46          else {
47              try {
48                  ValueMapper valueMapper = getValueMapper();
49  
50                  return valueMapper.getNewValue(oldValue);
51              }
52              catch (StagnantRowException sre) {
53                  return new Long(0);
54              }
55          }
56      }
57  
58  }