System.jad

   1 // Decompiled by Jad v1.5.7f. Copyright 2000 Pavel Kouznetsov.
   2 // Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
   3 // Decompiler options: packimports(3)
   4 // Source File Name:   System.java
   5
   6 package java.lang;
   7
   8 import java.io.*;
   9 import java.util.*;
  10
  11 // Referenced classes of package java.lang:
  12 //            Object, Runtime, RuntimePermission, SecurityManager,
  13 //            String, IllegalArgumentException, Error, StringBuffer
  14
  15 public final class System
  16 {
  17
  18     private System()
  19     {
  20     }
  21
  22     public static void setIn(InputStream in)
  23     {
  24         SecurityManager sm = Runtime.securityManager;
  25         if(sm != null)
  26             sm.checkPermission(new RuntimePermission("setIO"));
  27         setIn0(in);
  28     }
  29
  30     public static void setOut(PrintStream out)
  31     {
  32         SecurityManager sm = Runtime.securityManager;
  33         if(sm != null)
  34             sm.checkPermission(new RuntimePermission("setIO"));
  35         setOut0(out);
  36     }
  37
  38     public static void setErr(PrintStream err)
  39     {
  40         SecurityManager sm = Runtime.securityManager;
  41         if(sm != null)
  42             sm.checkPermission(new RuntimePermission("setIO"));
  43         setErr0(err);
  44     }
  45
  46     public static synchronized void setSecurityManager(SecurityManager sm)
  47     {
  48         if(Runtime.securityManager != null)
  49             Runtime.securityManager.checkPermission(new RuntimePermission("setSecurityManager"));
  50         Runtime.securityManager = sm;
  51     }
  52
  53     public static SecurityManager getSecurityManager()
  54     {
  55         return Runtime.securityManager;
  56     }
  57
  58     public static native long currentTimeMillis();
  59
  60     public static native void arraycopy(Object obj, int i, Object obj1, int j, int k);
  61
  62     public static native int identityHashCode(Object obj);
  63
  64     public static Properties getProperties()
  65     {
  66         SecurityManager sm = Runtime.securityManager;
  67         if(sm != null)
  68             sm.checkPropertiesAccess();
  69         return properties;
  70     }
  71
  72     public static void setProperties(Properties properties)
  73     {
  74         SecurityManager sm = Runtime.securityManager;
  75         if(sm != null)
  76             sm.checkPropertiesAccess();
  77         if(properties == null)
  78             properties = (Properties)Runtime.defaultProperties.clone();
  79         properties = properties;
  80     }
  81
  82     public static String getProperty(String key)
  83     {
  84         SecurityManager sm = Runtime.securityManager;
  85         if(sm != null)
  86             sm.checkPropertyAccess(key);
  87         else
  88         if(key.length() == 0)
  89             throw new IllegalArgumentException("key can't be empty");
  90         return properties.getProperty(key);
  91     }
  92
  93     public static String getProperty(String key, String def)
  94     {
  95         SecurityManager sm = Runtime.securityManager;
  96         if(sm != null)
  97             sm.checkPropertyAccess(key);
  98         return properties.getProperty(key, def);
  99     }
 100
 101     public static String setProperty(String key, String value)
 102     {
 103         SecurityManager sm = Runtime.securityManager;
 104         if(sm != null)
 105             sm.checkPermission(new PropertyPermission(key, "write"));
 106         return (String)properties.setProperty(key, value);
 107     }
 108
 109     public static String getenv(String name)
 110     {
 111         throw new Error("getenv no longer supported, use properties instead: " + name);
 112     }
 113
 114     public static void exit(int status)
 115     {
 116         Runtime.getRuntime().exit(status);
 117     }
 118
 119     public static void gc()
 120     {
 121         Runtime.getRuntime().gc();
 122     }
 123
 124     public static void runFinalization()
 125     {
 126         Runtime.getRuntime().runFinalization();
 127     }
 128
 129     public static void runFinalizersOnExit(boolean finalizeOnExit)
 130     {
 131         Runtime.getRuntime();
 132     }
 133
 134     public static void load(String filename)
 135     {
 136         Runtime.getRuntime().load(filename);
 137     }
 138
 139     public static void loadLibrary(String libname)
 140     {
 141         Runtime.getRuntime().loadLibrary(libname);
 142     }
 143
 144     public static String mapLibraryName(String libname)
 145     {
 146         return Runtime.nativeGetLibname("", libname);
 147     }
 148
 149     static native boolean isWordsBigEndian();
 150
 151     private static native void setIn0(InputStream inputstream);
 152
 153     private static native void setOut0(PrintStream printstream);
 154
 155     private static native void setErr0(PrintStream printstream);
 156
 157     private static Properties properties;
 158     public static final InputStream in;
 159     public static final PrintStream out;
 160     public static final PrintStream err;
 161
 162     static
 163     {
 164         Properties defaultProperties = Runtime.defaultProperties;
 165         if(defaultProperties.get("gnu.classpath.home.url") == null)
 166             defaultProperties.put("gnu.classpath.home.url", "file://" + defaultProperties.get("gnu.classpath.home") + "/lib");
 167         if(defaultProperties.get("gnu.classpath.vm.shortname") == null)
 168         {
 169             String value = defaultProperties.getProperty("java.vm.name");
 170             int index = value.lastIndexOf(32);
 171             if(index != -1)
 172                 value = value.substring(index + 1);
 173             defaultProperties.put("gnu.classpath.vm.shortname", value);
 174         }
 175         defaultProperties.put("gnu.cpu.endian", isWordsBigEndian() ? "big" : "little");
 176         if(defaultProperties.get("java.io.tmpdir") == null)
 177             defaultProperties.put("java.io.tmpdir", defaultProperties.get("java.tmpdir"));
 178         properties = (Properties)Runtime.defaultProperties.clone();
 179         in = new BufferedInputStream(new FileInputStream(FileDescriptor.in));
 180         out = new PrintStream(new BufferedOutputStream(new FileOutputStream(FileDescriptor.out)), true);
 181         err = new PrintStream(new BufferedOutputStream(new FileOutputStream(FileDescriptor.err)), true);
 182     }
 183 }