mps/src/H.java

   1 // The HTTP class for the MIDletPascal
   2 import javax.microedition.io.*;
   3 import java.io.*;
   4
   5 public class H
   6 {
   7         public HttpConnection c = null;
   8         public OutputStream o = null;
   9         public InputStream i = null;
  10
  11         // open a http connection
  12         public int L(String url)
  13         {
  14                 try
  15                 {
  16                         c = (HttpConnection)Connector.open(url);
  17                         o = c.openOutputStream();
  18                         return -1;
  19                 }
  20                 catch(Exception e)
  21                 {
  22                         c = null;
  23                         return 0;
  24                 }
  25         }
  26
  27         // return true if the connection is open
  28         public int L()
  29         {
  30                 if (c != null)
  31                         return -1;
  32                 return 0;
  33         }
  34
  35         // close the connection
  36         public void c()
  37         {
  38                 try
  39                 {
  40                         if (i != null)
  41                         {
  42                                 i.close();
  43                                 i = null;
  44                         }
  45                         if (o != null)
  46                         {
  47                                 o.close();
  48                                 o = null;
  49                         }
  50                         c.close();
  51                         c = null;
  52                 }
  53                 catch(Exception e)
  54                 {
  55                         c = null;
  56                 }
  57         }
  58
  59         // add http header
  60         public void L(String header, String value)
  61         {
  62                 try
  63                 {
  64                         c.setRequestProperty(header, value);
  65                 }
  66                 catch(Exception e)
  67                 {}
  68         }
  69
  70         // setRequestMethod :
  71         // HEAD, POST, GET bi trebalo rijesiti kao string konstante
  72         public void c(String method)
  73         {
  74                 try
  75                 {
  76                         c.setRequestMethod(method);
  77                 }
  78                 catch(Exception e)
  79                 {}
  80         }
  81
  82         // get header field
  83         public String i(String header)
  84         {
  85                 try
  86                 {
  87                         String value;
  88                         value = c.getHeaderField(header);
  89
  90                         if (value == null)
  91                           value = "";
  92
  93                         return value;
  94                 }
  95                 catch(Exception e)
  96                 {
  97                         return "";
  98                 }
  99         }
 100
 101         // set message text
 102         public int o(String message)
 103         {
 104                 try
 105                 {
 106                         o.write(message.getBytes());
 107
 108                         return -1;
 109                 }
 110                 catch(Exception e)
 111                 {
 112                         o = null;
 113                         return 0;
 114                 }
 115         }
 116
 117         // getresponse code
 118         // ovaj takodjer otvara konekciju i ceka dok se ne odgovori
 119         public int o()
 120         {
 121                 try
 122                 {
 123                         int code;
 124                         code = c.getResponseCode();
 125                         i = c.openInputStream();
 126                         return code;
 127                 }
 128                 catch(Exception e)
 129                 {
 130                         return -1;
 131                 }
 132         }
 133
 134         // read the input data from the connection
 135         public String j()
 136         {
 137                 try
 138                 {
 139                         StringBuffer retval = new StringBuffer();
 140                         int c;
 141
 142                         while ((c=i.read()) != -1)
 143                         {
 144                                 retval.append((char)(char)c);
 145                         }
 146
 147                         return retval.toString();
 148                 }
 149                 catch(Exception e)
 150                 {
 151                         return "";
 152                 }
 153         }
 154
 155 };