| /* |
| * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.awt; |
| |
| import java.security.PrivilegedAction; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import static sun.awt.OSInfo.OSType.*; |
| |
| /** |
| * @author Pavel Porvatov |
| */ |
| public class OSInfo { |
| public static enum OSType { |
| WINDOWS, |
| LINUX, |
| SOLARIS, |
| MACOSX, |
| UNKNOWN |
| } |
| |
| /* |
| The map windowsVersionMap must contain all windows version constants except WINDOWS_UNKNOWN, |
| and so the method getWindowsVersion() will return the constant for known OS. |
| It allows compare objects by "==" instead of "equals". |
| */ |
| public static final WindowsVersion WINDOWS_UNKNOWN = new WindowsVersion(-1, -1); |
| public static final WindowsVersion WINDOWS_95 = new WindowsVersion(4, 0); |
| public static final WindowsVersion WINDOWS_98 = new WindowsVersion(4, 10); |
| public static final WindowsVersion WINDOWS_ME = new WindowsVersion(4, 90); |
| public static final WindowsVersion WINDOWS_2000 = new WindowsVersion(5, 0); |
| public static final WindowsVersion WINDOWS_XP = new WindowsVersion(5, 1); |
| public static final WindowsVersion WINDOWS_2003 = new WindowsVersion(5, 2); |
| public static final WindowsVersion WINDOWS_VISTA = new WindowsVersion(6, 0); |
| public static final WindowsVersion WINDOWS_7 = new WindowsVersion(6, 1); |
| |
| private static final String OS_NAME = "os.name"; |
| private static final String OS_VERSION = "os.version"; |
| |
| private static final Map<String, WindowsVersion> windowsVersionMap = new HashMap<String, OSInfo.WindowsVersion>(); |
| |
| static { |
| windowsVersionMap.put(WINDOWS_95.toString(), WINDOWS_95); |
| windowsVersionMap.put(WINDOWS_98.toString(), WINDOWS_98); |
| windowsVersionMap.put(WINDOWS_ME.toString(), WINDOWS_ME); |
| windowsVersionMap.put(WINDOWS_2000.toString(), WINDOWS_2000); |
| windowsVersionMap.put(WINDOWS_XP.toString(), WINDOWS_XP); |
| windowsVersionMap.put(WINDOWS_2003.toString(), WINDOWS_2003); |
| windowsVersionMap.put(WINDOWS_VISTA.toString(), WINDOWS_VISTA); |
| windowsVersionMap.put(WINDOWS_7.toString(), WINDOWS_7); |
| } |
| |
| private static final PrivilegedAction<OSType> osTypeAction = new PrivilegedAction<OSType>() { |
| public OSType run() { |
| return getOSType(); |
| } |
| }; |
| |
| private OSInfo() { |
| // Don't allow to create instances |
| } |
| |
| /** |
| * Returns type of operating system. |
| */ |
| public static OSType getOSType() throws SecurityException { |
| String osName = System.getProperty(OS_NAME); |
| |
| if (osName != null) { |
| if (osName.contains("Windows")) { |
| return WINDOWS; |
| } |
| |
| if (osName.contains("Linux")) { |
| return LINUX; |
| } |
| |
| if (osName.contains("Solaris") || osName.contains("SunOS")) { |
| return SOLARIS; |
| } |
| |
| if (osName.contains("OS X")) { |
| return MACOSX; |
| } |
| |
| // determine another OS here |
| } |
| |
| return UNKNOWN; |
| } |
| |
| public static PrivilegedAction<OSType> getOSTypeAction() { |
| return osTypeAction; |
| } |
| |
| public static WindowsVersion getWindowsVersion() throws SecurityException { |
| String osVersion = System.getProperty(OS_VERSION); |
| |
| if (osVersion == null) { |
| return WINDOWS_UNKNOWN; |
| } |
| |
| synchronized (windowsVersionMap) { |
| WindowsVersion result = windowsVersionMap.get(osVersion); |
| |
| if (result == null) { |
| // Try parse version and put object into windowsVersionMap |
| String[] arr = osVersion.split("\\."); |
| |
| if (arr.length == 2) { |
| try { |
| result = new WindowsVersion(Integer.parseInt(arr[0]), Integer.parseInt(arr[1])); |
| } catch (NumberFormatException e) { |
| return WINDOWS_UNKNOWN; |
| } |
| } else { |
| return WINDOWS_UNKNOWN; |
| } |
| |
| windowsVersionMap.put(osVersion, result); |
| } |
| |
| return result; |
| } |
| } |
| |
| public static class WindowsVersion implements Comparable<WindowsVersion> { |
| private final int major; |
| |
| private final int minor; |
| |
| private WindowsVersion(int major, int minor) { |
| this.major = major; |
| this.minor = minor; |
| } |
| |
| public int getMajor() { |
| return major; |
| } |
| |
| public int getMinor() { |
| return minor; |
| } |
| |
| public int compareTo(WindowsVersion o) { |
| int result = major - o.getMajor(); |
| |
| if (result == 0) { |
| result = minor - o.getMinor(); |
| } |
| |
| return result; |
| } |
| |
| public boolean equals(Object obj) { |
| return obj instanceof WindowsVersion && compareTo((WindowsVersion) obj) == 0; |
| } |
| |
| public int hashCode() { |
| return 31 * major + minor; |
| } |
| |
| public String toString() { |
| return major + "." + minor; |
| } |
| } |
| } |