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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package helper;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
/**
* This class deliver some functionality to copy files.
*/
public class FileTools {
/**
* Copies all files under srcDir to dstDir.
* If dstDir does not exist, it will be created.
* @param srcDir the source directory
* @param dstDir the destination direcotry
* @throws java.io.IOException throws java.io.IOException if something failes
*/
public static void copyDirectory(File srcDir, File dstDir)
throws java.io.IOException {
copyDirectory(srcDir, dstDir, new String[]{});
}
/**
* Copies all files under srcDir to dstDir except Files given in the
* ignore list. This files will not be copied.
* If dstDir does not exist, it will be created.
* @param srcDir the source directory
* @param dstDir the destination direcotry
* @param ignore a list of files which should not be copied
* @throws java.io.IOException throws java.io.IOException if something failes
*/
public static void copyDirectory(File srcDir, File dstDir, String[] ignore)
throws java.io.IOException {
for (int i=0; i<ignore.length;i++){
if (srcDir.getName().endsWith(ignore[i])) {
return;
}
}
if (srcDir.isDirectory()) {
if (!dstDir.exists()) {
dstDir.mkdir();
}
String[] files = srcDir.list();
for (int i=0; i< files.length; i++) {
copyDirectory(new File(srcDir, files[i]), new File(dstDir, files[i]), ignore);
}
} else {
// This method is implemented in e1071 Copying a File
copyFile(srcDir, dstDir);
}
}
/**
* Copies src file to dst file. If the dst file does not exist, it is created
* @param src the source file
* @param dst the destination file
* @throws java.io.IOException throws java.io.IOException if something failes
*/
public static void copyFile(File src, File dst) throws java.io.IOException {
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dst);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
/**
* Deletes all files and subdirectories under dir and the directory itself.
* Returns true if all deletions were successful.
* If the deletion fails, the method the method continues to delete rest
* of the files and returns false.
* @return Returns true if all deletions were successful, else false.
* @param dir the directory to delete
*/
public static boolean deleteDir(File dir) {
// The directory is now empty so delete it
return cleanDir(dir);
}
public static boolean cleanDir(File dir)
{
if (dir.isDirectory())
{
String[] children = dir.list();
for (int i=0; i<children.length; i++)
{
boolean success = cleanDir(new File(dir, children[i]));
if (!success)
{
return false;
}
}
}
// The directory is now empty so delete it
return dir.delete();
}
}
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