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 import java.util.Locale;
   5
   6 import net.sf.openrocket.util.BugException;
   7
   8 public class SystemInfo {
   9
  10
  11         /**
  12          * Enumeration of supported operating systems.
  13          *
  14          * @see <a href="http://lopica.sourceforge.net/os.html">JNLP os and arch Value Collection</a>
  15          * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  16          */
  17         public enum Platform {
  18                 WINDOWS,
  19                 MAC_OS,
  20                 UNIX;
  21         }
  22
  23
  24         /**
  25          * Return the current operating system.
  26          *
  27          * @return      the operating system of the current system.
  28          */
  29         public static Platform getPlatform() {
  30                 String os = System.getProperty("os.name").toLowerCase(Locale.ENGLISH);
  31
  32                 if (os.indexOf("win") >= 0) {
  33                         return Platform.WINDOWS;
  34                 } else if (os.indexOf("mac") >= 0) {
  35                         return Platform.MAC_OS;
  36                 } else {
  37                         /*
  38                          * Assume UNIX otherwise, e.g. "Linux", "Solaris", "AIX" etc.
  39                          */
  40                         return Platform.UNIX;
  41                 }
  42         }
  43
  44
  45
  46
  47         /**
  48          * Return the application data directory of this user.  The location depends
  49          * on the current platform.
  50          * <p>
  51          * The directory will not be created by this method.
  52          *
  53          * @return      the application directory for OpenRocket
  54          */
  55         public static File getUserApplicationDirectory() {
  56                 final String homeDir = System.getProperty("user.home");
  57                 final File dir;
  58
  59                 switch (getPlatform()) {
  60                 case WINDOWS:
  61                         String appdata = System.getenv("APPDATA");
  62                         if (appdata != null) {
  63                                 dir = new File(appdata, "OpenRocket/");
  64                         } else {
  65                                 dir = new File(homeDir, "OpenRocket/");
  66                         }
  67                         break;
  68
  69                 case MAC_OS:
  70                         dir = new File(homeDir, "Library/Application Support/OpenRocket/");
  71                         break;
  72
  73                 case UNIX:
  74                         dir = new File(homeDir, ".openrocket/");
  75                         break;
  76
  77                 default:
  78                         throw new BugException("Not implemented for platform " + getPlatform());
  79                 }
  80
  81                 return dir;
  82         }
  83
  84 }