org.argeo.cms/src/org/argeo/cms/util/OS.java

   1 package org.argeo.cms.util;
   2
   3 import java.io.File;
   4 import java.nio.file.Path;
   5 import java.nio.file.Paths;
   6
   7 /** When OS specific informations are needed. */
   8 public class OS {
   9         public final static OS LOCAL = new OS();
  10
  11         private final String arch, name, version;
  12
  13         /** The OS of the running JVM */
  14         protected OS() {
  15                 arch = System.getProperty("os.arch");
  16                 name = System.getProperty("os.name");
  17                 version = System.getProperty("os.version");
  18         }
  19
  20         public String getArch() {
  21                 return arch;
  22         }
  23
  24         public String getName() {
  25                 return name;
  26         }
  27
  28         public String getVersion() {
  29                 return version;
  30         }
  31
  32         public boolean isMSWindows() {
  33                 // only MS Windows would use such an horrendous separator...
  34                 return File.separatorChar == '\\';
  35         }
  36
  37         public String[] getDefaultShellCommand() {
  38                 if (!isMSWindows())
  39                         return new String[] { "/bin/bash", "-l", "-i" };
  40                 else
  41                         return new String[] { "cmd.exe", "/C" };
  42         }
  43
  44         public static long getJvmPid() {
  45                 return ProcessHandle.current().pid();
  46 //              String pidAndHost = ManagementFactory.getRuntimeMXBean().getName();
  47 //              return Integer.parseInt(pidAndHost.substring(0, pidAndHost.indexOf('@')));
  48         }
  49
  50         /**
  51          * Get the runtime directory. It will be the environment variable
  52          * XDG_RUNTIME_DIR if it is set, or ~/.cache/argeo if not.
  53          */
  54         public static Path getRunDir() {
  55                 Path runDir;
  56                 String xdgRunDir = System.getenv("XDG_RUNTIME_DIR");
  57                 if (xdgRunDir != null) {
  58                         // TODO support multiple names
  59                         runDir = Paths.get(xdgRunDir);
  60                 } else {
  61                         runDir = Paths.get(System.getProperty("user.home"), ".cache/argeo");
  62                 }
  63                 return runDir;
  64         }
  65 }