001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.kernel.upgrade.util;
016    
017    import com.liferay.portal.kernel.upgrade.StagnantRowException;
018    import com.liferay.portal.kernel.util.GetterUtil;
019    
020    /**
021     * @author Brian Wing Shun Chan
022     */
023    public class DefaultPKMapper extends ValueMapperWrapper {
024    
025            public DefaultPKMapper(ValueMapper valueMapper) {
026                    super(valueMapper);
027            }
028    
029            @Override
030            public Object getNewValue(Object oldValue) throws Exception {
031                    String oldValueString = GetterUtil.getString(
032                            String.valueOf(oldValue));
033    
034                    if (oldValueString.equals("-1") || oldValueString.equals("0") ||
035                            oldValueString.equals("")) {
036    
037                            return new Long(0);
038                    }
039                    else {
040                            try {
041                                    ValueMapper valueMapper = getValueMapper();
042    
043                                    if (oldValue instanceof String) {
044                                            oldValue = oldValueString.toLowerCase();
045                                    }
046    
047                                    return valueMapper.getNewValue(oldValue);
048                            }
049                            catch (StagnantRowException sre) {
050                                    return new Long(0);
051                            }
052                    }
053            }
054    
055    }