source/mir/misc/FileUtil.java

   1
   2 /*
   3  * put your module comment here
   4  */
   5
   6
   7 package mir.misc;
   8
   9 import  java.lang.*;
  10 import  java.util.*;
  11 import  java.io.*;
  12 import  java.net.*;
  13 import  freemarker.template.*;
  14 import  mir.entity.*;
  15 import  mir.storage.*;
  16
  17 import javax.servlet.http.*;
  18 import javax.servlet.*;
  19
  20 /**
  21  * Hilfsklasse zum Mergen von Template und Daten
  22  */
  23 public final class FileUtil {
  24
  25   private static String producerStorageRoot;
  26
  27   //
  28   // Initialisierung
  29
  30   static {
  31     producerStorageRoot = MirConfig.getProp("Producer.StorageRoot");
  32   }
  33
  34   /**
  35    * Privater Konstruktor, um versehentliche Instantiierung zu verhindern
  36    */
  37   private FileUtil () {
  38   }
  39
  40   public static boolean write(String filename, byte[] in)
  41     throws IOException {
  42
  43                 boolean retVal = false;
  44
  45                 if (in!=null) {
  46                         try {
  47         File f = null;
  48         f = new File(filename);
  49                                 File dir = new File(f.getParent());
  50                                 dir.mkdirs();
  51
  52                                 FileOutputStream outStream;
  53                                 outStream = new FileOutputStream(f);
  54                                 outStream.write(in);
  55                                 outStream.close();
  56                                 retVal = true;
  57                         } catch(IOException e) {
  58         throw new IOException(e.toString());
  59       }
  60     }
  61                 return retVal;
  62         }
  63
  64   public static boolean read(String filename, byte out[])
  65     throws IOException {
  66
  67     File f = null;
  68     f = new File(filename);
  69
  70                 if (f.exists()) {
  71                         try {
  72         if (out.length != f.length())
  73           return false;
  74                                 FileInputStream inStream;
  75                                 inStream = new FileInputStream(f);
  76                                 inStream.read(out);
  77                                 inStream.close();
  78                         } catch(IOException e) {
  79         throw new IOException(e.toString());
  80       }
  81     } else {
  82       return false;
  83     }
  84     return true;
  85   }
  86
  87   public static long getSize(String filename) {
  88     File f = null;
  89     f = new File(filename);
  90     long l=0;
  91
  92     if (f.exists()) {
  93       return f.length();
  94     } else {
  95       return -1;
  96     }
  97   }
  98
  99
 100 }