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Filename Batch Converter Application - Main

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package org.usc.file.operater.rules;

/**
 * 后缀转换
 * 
 * @author ShunLi
 * @notes Created on 2010-12-11

 *        Revision of last commit:$Revision$

 *        Author of last commit:$Author$

 *        Date of last commit:$Date$

 *        
 */
public class SuffixConvertRule implements ConvertRule {

    @Override
    public String reNameByRule(String oldName) {
        return reNameByRule(oldName, "", "");
    }

    @Override
    public String reNameByRule(String oldName, String fix, String newFix) {
        int lastIndex = oldName.lastIndexOf(".");
        String spitBeforeString = oldName.substring(0, lastIndex != -1 ? lastIndex : oldName.length());
        String spitAfterString = lastIndex != -1 ? oldName.substring(lastIndex) : "";

        if (fix == null || fix.trim().length() == 0) {
            return spitBeforeString.concat(newFix).concat(spitAfterString);
        } else {
            int lastIndexByFix = spitBeforeString.lastIndexOf(fix);

            return lastIndexByFix != -1 ? spitBeforeString.substring(0, lastIndexByFix).concat(newFix).concat(spitAfterString) : oldName;
        }
    }

    @Override
    public String reNameByRule(String oldName, String fix, String newFix, Boolean isFolder) {
        int lastIndex = oldName.lastIndexOf(".");
        String spitBeforeString = oldName.substring(0, lastIndex != -1 ? lastIndex : oldName.length());
        String spitAfterString = lastIndex != -1 ? oldName.substring(lastIndex) : "";

        if (fix == null || fix.trim().length() == 0) {
            if (isFolder) {
                return oldName.concat(newFix);
            }

            return spitBeforeString.concat(newFix).concat(spitAfterString);
        } else {
            if (isFolder) {
                if (oldName.indexOf(fix) != -1 && fix.equals(oldName.substring(oldName.length() - fix.length()))) {
                    return oldName.substring(0, oldName.length() - fix.length()).concat(newFix);
                }
                return oldName;
            } else {
                if (spitBeforeString.indexOf(fix) != -1 && fix.equals(spitBeforeString.substring(spitBeforeString.length() - fix.length()))) {
                    return spitBeforeString.substring(0, spitBeforeString.length() - fix.length()).concat(newFix).concat(spitAfterString);
                }
                return oldName;
            }
        }
    }

}