1 /*

     2  * Copyright (c) 2016, 2018, 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 jdk.jpackager.internal;

    27 

    28 import java.util.regex.Pattern;

    29 

    30 /**

    31  * Platform

    32  *

    33  * Use <code>Platform</code> to detect the operating system

    34  * that is currently running.

    35  *

    36  * Example:

    37  *

    38  *  Platform platform = Platform.getPlatform();

    39  *

    40  *  switch(platform) {

    41  *    case Platform.MAC: {

    42  *      // Do something

    43  *      break;

    44  *    }

    45  *    case Platform.WINDOWS:

    46  *    case Platform.LINUX: {

    47  *      // Do something else

    48  *    }

    49  *  }

    50  *

    51  */

    52 public enum Platform {UNKNOWN, WINDOWS, LINUX, MAC;

    53     private static final Platform platform;

    54     private static final int majorVersion;

    55     private static final int minorVersion;

    56 

    57     static {

    58         String os = System.getProperty("os.name").toLowerCase();

    59 

    60         if (os.indexOf("win") >= 0) {

    61             platform = Platform.WINDOWS;

    62         }

    63         else if (os.indexOf("nix") >= 0 || os.indexOf("nux") >= 0) {

    64             platform = Platform.LINUX;

    65         }

    66         else if (os.indexOf("mac") >= 0) {

    67             platform = Platform.MAC;

    68         }

    69         else {

    70             platform = Platform.UNKNOWN;

    71         }

    72 

    73         String version = System.getProperty("os.version").toString();

    74         String[] parts = version.split(Pattern.quote("."));

    75 

    76         if (parts.length > 0) {

    77             majorVersion = Integer.parseInt(parts[0]);

    78 

    79             if (parts.length > 1) {

    80                 minorVersion = Integer.parseInt(parts[1]);

    81             }

    82             else {

    83                 minorVersion = -1;

    84             }

    85         }

    86         else {

    87             majorVersion = -1;

    88             minorVersion = -1;

    89         }

    90     }

    91 

    92     private Platform() {}

    93 

    94     public static Platform getPlatform() {

    95         return platform;

    96     }

    97 

    98     public static int getMajorVersion() {

    99         return majorVersion;

   100     }

   101 

   102     public static int getMinorVersion() {

   103         return minorVersion;

   104     }

   105 }