com.tmount.util.FileUtils.java Source code

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Here is the source code for com.tmount.util.FileUtils.java

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/*
 *  Copyright (c) 2013 The CCP project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a Beijing Speedtong Information Technology Co.,Ltd license
 *  that can be found in the LICENSE file in the root of the web site.
 *
 *   http://www.cloopen.com
 *
 *  An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */
package com.tmount.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.log4j.Logger;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

/**
 * <p>
 * Title: FileUtils
 * </p>
 * <p>
 * Description: file
 * </p>
 * <p>
 * Copyright: Copyright (c) 2013
 * </p>
 * <p>
 * Company: hisunsray
 * </p>
 * <p>
 * Date: 2013-07-09
 * </p>
 * 
 * @version 1.0
 */
public class FileUtils {
   private static final Logger log = Logger.getLogger(FileUtils.class
         .getName());
   /**
    * ??
    * @param fileName ??
    */
   public static void isExists(String fileName) {
      
      try {
         File file= new File(fileName);
         if (!file.exists()) {
            if(file.createNewFile()){
               //??
               initFile(fileName);
            }else{
               //
               log.error(new Exception("create file failure"));
            }
         }
      } catch (Exception e) {
         log.error(" *** Exception ***", e);
      }
   }
   /**
    * ?
    * @param fileName ??
    */
   private static void initFile(String fileName){
      
      Document document = DocumentHelper.createDocument();
      Element root = document.addElement("auth");
      Element billdata = root.addElement("balance");
      billdata.setText("100");
      OutputFormat format = OutputFormat.createPrettyPrint();
      format.setEncoding("GBK");
      XMLWriter writer;
      try {
         writer = new XMLWriter(new FileWriter(new File(
               fileName)), format);
         writer.write(document); // 
         writer.close();
      } catch (IOException e) {
         log.info(" *** IOException *** ",e);
      }
      
   }
   
   /**
    * ? 
    * @param fileName ??
    */
   public static void log(String fileName) {
      
      InputStream in;
      try {
         in = new FileInputStream(new File(fileName));
         BufferedReader bf = new BufferedReader(new InputStreamReader(in));
         String str = null;
         StringBuffer xmlfile = new StringBuffer();
         while ((str = bf.readLine()) != null) {
            xmlfile.append(str);
         }
         log.info(xmlfile.toString());
      } catch (FileNotFoundException e) {
         log.error(" *** FileNotFoundException ***", e);
      } catch (IOException e) {
         log.error(" *** IOException ***", e);
      }
   }
   
   
   public static String convert(String utfString){
      StringBuilder sb = new StringBuilder();
      int i = -1;
      int pos = 0;
      while((i=utfString.indexOf("\\u", pos)) != -1){
         sb.append(utfString.substring(pos, i));
         if(i+5 < utfString.length()){
            pos = i+6;
            sb.append((char)Integer.parseInt(utfString.substring(i+2, i+6), 16));
         }
      }
      return sb.toString();
   }
}