util/LoadFile.java

   1
   2 package org.de.metux.util;
   3
   4 import java.io.IOException;
   5 import java.io.File;
   6 import java.io.BufferedReader;
   7 import java.io.FileReader;
   8 import java.io.FileNotFoundException;
   9 import java.io.InputStreamReader;
  10 import java.net.URL;
  11 import java.net.URLConnection;
  12
  13 public class LoadFile
  14 {
  15     public static String load(URL url)
  16         throws IOException
  17     {
  18         return load(url,false);
  19     }
  20
  21     public static String load(URL url, boolean strip_comments)
  22         throws IOException
  23     {
  24         URLConnection conn = url.openConnection();
  25         conn.setDoOutput(true);
  26
  27         /* read back */
  28         BufferedReader rd =
  29             new BufferedReader(new InputStreamReader(conn.getInputStream()));
  30         String text="";
  31         String line;
  32         while ((line=rd.readLine()) != null)
  33         {
  34             int x;
  35             if (strip_comments && ((x=line.indexOf('#'))>-1))
  36                 line = line.substring(0,x);
  37             text += line.trim()+"\n";
  38         }
  39         return text;
  40     }
  41
  42     public static String load(File filename, boolean strip_comments)
  43         throws IOException
  44     {
  45         BufferedReader in;
  46
  47         try
  48         {
  49             in = new BufferedReader(new FileReader(filename));
  50         }
  51         catch (FileNotFoundException e)
  52         {
  53             return null;
  54         }
  55
  56         String text = "";
  57         String line;
  58         while ((line=in.readLine())!=null)
  59         {
  60             int x;
  61             // strip off comments
  62
  63             if (strip_comments && ((x=line.indexOf('#'))>-1))
  64                 line = line.substring(0,x);
  65
  66             text += line.trim() + "\n";
  67         }
  68
  69         return text.trim();
  70     }
  71
  72         public static String load(Filename filename, boolean strip_comments)
  73                 throws IOException
  74         {
  75                 BufferedReader in = new BufferedReader(filename.getReader());
  76                 String text = "";
  77                 String line;
  78                 while ((line=in.readLine())!=null)
  79                 {
  80                         int x;
  81                         // strip off comments
  82                         if (strip_comments && ((x=line.indexOf('#'))>-1))
  83                                 line = line.substring(0,x);
  84                         text += line.trim() + "\n";
  85                 }
  86                 return text.trim();
  87         }
  88
  89         public static String load_def(Filename filename, boolean strip_comments, String def)
  90                 throws IOException
  91         {
  92                 try
  93                 {
  94                         return load(filename, strip_comments);
  95                 }
  96                 catch (FileNotFoundException e)
  97                 {
  98                         return def;
  99                 }
 100         }
 101 }