git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/arch/SystemInfo.java

   1 package net.sf.openrocket.arch;
   2
   3 import java.io.File;
   4
   5 import net.sf.openrocket.util.BugException;
   6
   7 public class SystemInfo {
   8
   9
  10         /**
  11          * Enumeration of supported operating systems.
  12          *
  13          * @see <a href="http://lopica.sourceforge.net/os.html">JNLP os and arch Value Collection</a>
  14          * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  15          */
  16         public enum Platform {
  17                 WINDOWS,
  18                 MAC_OS,
  19                 UNIX;
  20         }
  21
  22
  23         /**
  24          * Return the current operating system.
  25          *
  26          * @return      the operating system of the current system.
  27          */
  28         public static Platform getPlatform() {
  29                 String os = System.getProperty("os.name").toLowerCase();
  30
  31                 if (os.indexOf("win") >= 0) {
  32                         return Platform.WINDOWS;
  33                 } else if (os.indexOf("mac") >= 0) {
  34                         return Platform.MAC_OS;
  35                 } else {
  36                         /*
  37                          * Assume UNIX otherwise, e.g. "Linux", "Solaris", "AIX" etc.
  38                          */
  39                         return Platform.UNIX;
  40                 }
  41         }
  42
  43
  44
  45
  46         /**
  47          * Return the application data directory of this user.  The location depends
  48          * on the current platform.
  49          * <p>
  50          * The directory will not be created by this method.
  51          *
  52          * @return      the application directory for OpenRocket
  53          */
  54         public static File getUserApplicationDirectory() {
  55                 final String homeDir = System.getProperty("user.home");
  56                 final File dir;
  57
  58                 switch (getPlatform()) {
  59                 case WINDOWS:
  60                         String appdata = System.getenv("APPDATA");
  61                         if (appdata != null) {
  62                                 dir = new File(appdata, "OpenRocket/");
  63                         } else {
  64                                 dir = new File(homeDir, "OpenRocket/");
  65                         }
  66                         break;
  67
  68                 case MAC_OS:
  69                         dir = new File(homeDir, "Library/Application Support/OpenRocket/");
  70                         break;
  71
  72                 case UNIX:
  73                         dir = new File(homeDir, ".openrocket/");
  74                         break;
  75
  76                 default:
  77                         throw new BugException("Not implemented for platform " + getPlatform());
  78                 }
  79
  80                 return dir;
  81         }
  82
  83 }