qadevOOo/runner/helper/FileTools.java

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   9  * $RCSfile: FileTools.java,v $
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  30 package helper;
  31
  32 import java.io.File;
  33 import java.io.FileInputStream;
  34 import java.io.FileOutputStream;
  35 import java.io.InputStream;
  36 import java.io.OutputStream;
  37
  38
  39 /**
  40  * This class deliver some functionality to copy files.
  41  */
  42 public class FileTools {
  43
  44     /**
  45      * Copies all files under srcDir to dstDir.
  46      * If dstDir does not exist, it will be created.
  47      * @param srcDir the source directory
  48      * @param dstDir the destination direcotry
  49      * @throws java.io.IOException throws java.io.IOException if something failes
  50      */
  51     public static void copyDirectory(File srcDir, File dstDir)
  52            throws java.io.IOException {
  53         copyDirectory(srcDir, dstDir, new String[]{});
  54     }
  55     /**
  56      * Copies all files under srcDir to dstDir except Files given in the
  57      * ignore list. This files will not be copied.
  58      * If dstDir does not exist, it will be created.
  59      * @param srcDir the source directory
  60      * @param dstDir the destination direcotry
  61      * @param ignore a list of files which should not be copied
  62      * @throws java.io.IOException throws java.io.IOException if something failes
  63      */
  64     public static void copyDirectory(File srcDir, File dstDir, String[] ignore)
  65            throws java.io.IOException {
  66
  67         for (int i=0; i<ignore.length;i++){
  68             if (srcDir.getName().endsWith(ignore[i])) {
  69                 return;
  70             }
  71         }
  72
  73         if (srcDir.isDirectory()) {
  74             if (!dstDir.exists()) {
  75                 dstDir.mkdir();
  76             }
  77
  78             String[] files = srcDir.list();
  79             for (int i=0; i< files.length; i++) {
  80                 copyDirectory(new File(srcDir, files[i]), new File(dstDir, files[i]), ignore);
  81             }
  82         } else {
  83             // This method is implemented in e1071 Copying a File
  84             copyFile(srcDir, dstDir);
  85         }
  86     }
  87
  88     /**
  89      * Copies src file to dst file. If the dst file does not exist, it is created
  90      * @param src the source file
  91      * @param dst the destination file
  92      * @throws java.io.IOException throws java.io.IOException if something failes
  93      */
  94     public static void copyFile(File src, File dst) throws java.io.IOException {
  95         InputStream in = new FileInputStream(src);
  96         OutputStream out = new FileOutputStream(dst);
  97
  98         // Transfer bytes from in to out
  99         byte[] buf = new byte[1024];
 100         int len;
 101         while ((len = in.read(buf)) > 0) {
 102             out.write(buf, 0, len);
 103         }
 104         in.close();
 105         out.close();
 106     }
 107     /**
 108      * Deletes all files and subdirectories under dir and the directory itself.
 109      * Returns true if all deletions were successful.
 110      * If the deletion fails, the method the method continues to delete rest
 111      * of the files and returns false.
 112      * @return Returns true if all deletions were successful, else false.
 113      * @param dir the directory to delete
 114      */
 115     public static boolean deleteDir(File dir) {
 116
 117         // if (! cleanDir(dir)) return false;
 118
 119         // The directory is now empty so delete it
 120         // return dir.delete();
 121         return cleanDir(dir);
 122     }
 123
 124     /**
 125      * Deletes all files and subdirectories under dir.
 126      * Returns true if all deletions were successful.
 127      * If a deletion fails, the method continues to delete rest of the files.
 128      * @return Returns true if all deletions were successful, else false.
 129      * @param dir the directory to clean from content
 130      */
 131     // public static boolean cleanDir(File dir){
 132     //
 133     //     boolean success = true;
 134     //     if (dir.isDirectory()){
 135     //         File [] theFiles = dir.listFiles();
 136     //
 137     //         if (theFiles.length != 0 )
 138     //             for (int i = 0; i < theFiles.length; i++){
 139     //                 success &= theFiles[i].delete();
 140     //             }
 141     //     }
 142     //     return success;
 143     // }
 144
 145    public static boolean cleanDir(File dir)
 146         {
 147             if (dir.isDirectory())
 148             {
 149                 String[] children = dir.list();
 150                 for (int i=0; i<children.length; i++)
 151                 {
 152                     boolean success = cleanDir(new File(dir, children[i]));
 153                     if (!success)
 154                     {
 155                         return false;
 156                     }
 157                 }
 158             }
 159
 160             // The directory is now empty so delete it
 161             return dir.delete();
 162         }
 163 }