| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| 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) { |
| |
| // if (! cleanDir(dir)) return false; |
| |
| // The directory is now empty so delete it |
| // return dir.delete(); |
| return cleanDir(dir); |
| } |
| |
| /** |
| * Deletes all files and subdirectories under dir. |
| * Returns true if all deletions were successful. |
| * If a deletion fails, the method continues to delete rest of the files. |
| * @return Returns true if all deletions were successful, else false. |
| * @param dir the directory to clean from content |
| */ |
| // public static boolean cleanDir(File dir){ |
| // |
| // boolean success = true; |
| // if (dir.isDirectory()){ |
| // File [] theFiles = dir.listFiles(); |
| // |
| // if (theFiles.length != 0 ) |
| // for (int i = 0; i < theFiles.length; i++){ |
| // success &= theFiles[i].delete(); |
| // } |
| // } |
| // return success; |
| // } |
| |
| 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(); |
| } |
| } |