1 /* 2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.awt; 27 28 import java.security.PrivilegedAction; 29 import java.util.HashMap; 30 import java.util.Map; 31 32 import static sun.awt.OSInfo.OSType.*; 33 34 /** 35 * @author Pavel Porvatov 36 */ 37 public class OSInfo { 38 public static enum OSType { 39 WINDOWS, 40 LINUX, 41 SOLARIS, 42 MACOSX, 43 BSD, 44 AIX, 45 UNKNOWN 46 } 47 48 /* 49 The map windowsVersionMap must contain all windows version constants except WINDOWS_UNKNOWN, 50 and so the method getWindowsVersion() will return the constant for known OS. 51 It allows compare objects by "==" instead of "equals". 52 */ 53 public static final WindowsVersion WINDOWS_UNKNOWN = new WindowsVersion(-1, -1); 54 public static final WindowsVersion WINDOWS_95 = new WindowsVersion(4, 0); 55 public static final WindowsVersion WINDOWS_98 = new WindowsVersion(4, 10); 56 public static final WindowsVersion WINDOWS_ME = new WindowsVersion(4, 90); 57 public static final WindowsVersion WINDOWS_2000 = new WindowsVersion(5, 0); 58 public static final WindowsVersion WINDOWS_XP = new WindowsVersion(5, 1); 59 public static final WindowsVersion WINDOWS_2003 = new WindowsVersion(5, 2); 60 public static final WindowsVersion WINDOWS_VISTA = new WindowsVersion(6, 0); 61 public static final WindowsVersion WINDOWS_7 = new WindowsVersion(6, 1); 62 63 private static final String OS_NAME = "os.name"; 64 private static final String OS_VERSION = "os.version"; 65 66 private static final Map<String, WindowsVersion> windowsVersionMap = new HashMap<String, OSInfo.WindowsVersion>(); 67 68 static { WINDOWS_95.toString()69 windowsVersionMap.put(WINDOWS_95.toString(), WINDOWS_95); WINDOWS_98.toString()70 windowsVersionMap.put(WINDOWS_98.toString(), WINDOWS_98); WINDOWS_ME.toString()71 windowsVersionMap.put(WINDOWS_ME.toString(), WINDOWS_ME); WINDOWS_2000.toString()72 windowsVersionMap.put(WINDOWS_2000.toString(), WINDOWS_2000); WINDOWS_XP.toString()73 windowsVersionMap.put(WINDOWS_XP.toString(), WINDOWS_XP); WINDOWS_2003.toString()74 windowsVersionMap.put(WINDOWS_2003.toString(), WINDOWS_2003); WINDOWS_VISTA.toString()75 windowsVersionMap.put(WINDOWS_VISTA.toString(), WINDOWS_VISTA); WINDOWS_7.toString()76 windowsVersionMap.put(WINDOWS_7.toString(), WINDOWS_7); 77 } 78 79 private static final PrivilegedAction<OSType> osTypeAction = new PrivilegedAction<OSType>() { 80 public OSType run() { 81 return getOSType(); 82 } 83 }; 84 OSInfo()85 private OSInfo() { 86 // Don't allow to create instances 87 } 88 89 /** 90 * Returns type of operating system. 91 */ getOSType()92 public static OSType getOSType() throws SecurityException { 93 String osName = System.getProperty(OS_NAME); 94 95 if (osName != null) { 96 if (osName.contains("Windows")) { 97 return WINDOWS; 98 } 99 100 if (osName.contains("Linux")) { 101 return LINUX; 102 } 103 104 if (osName.contains("Solaris") || osName.contains("SunOS")) { 105 return SOLARIS; 106 } 107 108 if (osName.contains("OS X")) { 109 return MACOSX; 110 } 111 112 if (osName.endsWith("BSD")) { 113 return BSD; 114 } 115 116 if (osName.contains("AIX")) { 117 return AIX; 118 } 119 120 // determine another OS here 121 } 122 123 return UNKNOWN; 124 } 125 getOSTypeAction()126 public static PrivilegedAction<OSType> getOSTypeAction() { 127 return osTypeAction; 128 } 129 getWindowsVersion()130 public static WindowsVersion getWindowsVersion() throws SecurityException { 131 String osVersion = System.getProperty(OS_VERSION); 132 133 if (osVersion == null) { 134 return WINDOWS_UNKNOWN; 135 } 136 137 synchronized (windowsVersionMap) { 138 WindowsVersion result = windowsVersionMap.get(osVersion); 139 140 if (result == null) { 141 // Try parse version and put object into windowsVersionMap 142 String[] arr = osVersion.split("\\."); 143 144 if (arr.length == 2) { 145 try { 146 result = new WindowsVersion(Integer.parseInt(arr[0]), Integer.parseInt(arr[1])); 147 } catch (NumberFormatException e) { 148 return WINDOWS_UNKNOWN; 149 } 150 } else { 151 return WINDOWS_UNKNOWN; 152 } 153 154 windowsVersionMap.put(osVersion, result); 155 } 156 157 return result; 158 } 159 } 160 161 public static class WindowsVersion implements Comparable<WindowsVersion> { 162 private final int major; 163 164 private final int minor; 165 WindowsVersion(int major, int minor)166 private WindowsVersion(int major, int minor) { 167 this.major = major; 168 this.minor = minor; 169 } 170 getMajor()171 public int getMajor() { 172 return major; 173 } 174 getMinor()175 public int getMinor() { 176 return minor; 177 } 178 compareTo(WindowsVersion o)179 public int compareTo(WindowsVersion o) { 180 int result = major - o.getMajor(); 181 182 if (result == 0) { 183 result = minor - o.getMinor(); 184 } 185 186 return result; 187 } 188 equals(Object obj)189 public boolean equals(Object obj) { 190 return obj instanceof WindowsVersion && compareTo((WindowsVersion) obj) == 0; 191 } 192 hashCode()193 public int hashCode() { 194 return 31 * major + minor; 195 } 196 toString()197 public String toString() { 198 return major + "." + minor; 199 } 200 } 201 } 202