com.liferay.portal.kernel.upgrade.util.IdReplacer Maven / Gradle / Ivy
/**
* Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.portal.kernel.upgrade.util;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.upgrade.StagnantRowException;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.Validator;
/**
* @author Brian Wing Shun Chan
*/
public class IdReplacer {
public static String replaceLongIds(
String s, String begin, ValueMapper valueMapper)
throws Exception {
if ((s == null) || (begin == null) ||
(valueMapper == null) || (valueMapper.size() == 0)) {
return s;
}
char[] chars = s.toCharArray();
StringBundler sb = new StringBundler();
int pos = 0;
while (true) {
int x = s.indexOf(begin, pos);
int y = _getEndPos(chars, x + begin.length());
if ((x == -1) || (y == -1)) {
sb.append(s.substring(pos));
break;
}
else {
sb.append(s.substring(pos, x + begin.length()));
String oldString = s.substring(x + begin.length(), y);
if (Validator.isNotNull(oldString)) {
Long oldValue = new Long(GetterUtil.getLong(oldString));
Long newValue = null;
try {
newValue = (Long)valueMapper.getNewValue(oldValue);
}
catch (StagnantRowException sre) {
if (_log.isWarnEnabled()) {
_log.warn(sre);
}
}
if (newValue == null) {
newValue = oldValue;
}
sb.append(newValue);
}
pos = y;
}
}
return sb.toString();
}
public String replaceLongIds(
String s, String begin, String end, ValueMapper valueMapper)
throws Exception {
if ((s == null) || (begin == null) || (end == null) ||
(valueMapper == null) || (valueMapper.size() == 0)) {
return s;
}
StringBundler sb = new StringBundler();
int pos = 0;
while (true) {
int x = s.indexOf(begin, pos);
int y = s.indexOf(end, x + begin.length());
if ((x == -1) || (y == -1)) {
sb.append(s.substring(pos));
break;
}
else {
sb.append(s.substring(pos, x + begin.length()));
Long oldValue = new Long(
GetterUtil.getLong(s.substring(x + begin.length(), y)));
Long newValue = null;
try {
newValue = (Long)valueMapper.getNewValue(oldValue);
}
catch (StagnantRowException sre) {
if (_log.isWarnEnabled()) {
_log.warn(sre);
}
}
if (newValue == null) {
newValue = oldValue;
}
sb.append(newValue);
pos = y;
}
}
return sb.toString();
}
private static int _getEndPos(char[] chars, int pos) {
while (true) {
if (pos >= chars.length) {
break;
}
if (!Character.isDigit(chars[pos])) {
break;
}
pos++;
}
return pos;
}
private static Log _log = LogFactoryUtil.getLog(IdReplacer.class);
}