dircopyutil.java

一个执行文件拷贝

//Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
//Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
//Decompiler options: packimports(3) fieldsfirst ansi 
//Source File Name:   DirCopyUtil.java

package com.ynstudio.util;

import java.io.*;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class DirCopyUtil
{
	private static final Log log = LogFactory.getLog(DirCopyUtil.class);
	
	public static class FileFilter{
		public boolean pass(File file){return true;};
	}
 static class FileCopier
     implements Copyable
 {

     File src;

     public void copy(File file,FileFilter filter)
     {
    	 try{
             if(!file.exists())
                 file.createNewFile();
             if(!file.isFile())
                 throw new IllegalArgumentException("passed in paremter has to be file" + file);
             FileInputStream fileinputstream = new FileInputStream(src);
             FileOutputStream fileoutputstream = new FileOutputStream(file);
             byte abyte0[] = new byte[4096];
             for(int i = 0; (i = fileinputstream.read(abyte0, 0, abyte0.length)) > 0;)
                 fileoutputstream.write(abyte0, 0, i);

             fileinputstream.close();
             fileoutputstream.close();
    	 }catch(IOException ioe){
    		 log.error(ioe.getMessage(),ioe);
    	 }

     }

     public FileCopier(File file)
     {
         if(!file.isFile())
         {
             throw new IllegalArgumentException("passed in paremter has to be file" + file);
         } else
         {
             src = file;
             return;
         }
     }
 }

 static class DirCopier
     implements Copyable
 {

     File srcDir;

     public void copy(File file,FileFilter filter)
         throws IOException
     {
         if(!file.exists() && !file.mkdirs())
             throw new IOException("unable to create dir:" + file);
         if(!file.isDirectory())
             throw new IllegalArgumentException("passed in paremter has to be directory" + file);
         File afile[] = srcDir.listFiles();
         for(int i = 0; i < afile.length; i++)
         {
             File file1 = afile[i];
             String s = file1.getCanonicalPath();
             if(s.endsWith(File.separator))
                 s = s.substring(0, s.length() - File.separator.length());
             File file2 = new File(file, s.substring(s.lastIndexOf(File.separatorChar) + 1));
             DirCopyUtil.getCopyable(afile[i]).copy(file2, filter);
         }

     }

     public DirCopier(File file)
     {
         if(!file.isDirectory())
         {
             throw new IllegalArgumentException("passed in paremter has to be directory" + file);
         } else
         {
             srcDir = file;
             return;
         }
     }
 }

 static interface Copyable
 {

     public abstract void copy(File file,FileFilter filter)
         throws IOException;
 }


 public DirCopyUtil()
 {
 }

 public static void copy(File file, File file1,FileFilter filter)
     throws IOException
 {
     getCopyable(file).copy(file1,filter);
 }

 public static void copy(File file, File file1)
     throws IOException
 {
     copy(file,file1,null);
 }

 public static Copyable getCopyable(File file)
 {
     if(file.isFile())
         return new FileCopier(file);
     else
         return new DirCopier(file);
 }
}