1 /*

     2  * Copyright (c) 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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 package jnlp.converter;

    25 

    26 import java.util.regex.Pattern;

    27 

    28 public enum Platform {

    29     UNKNOWN, WINDOWS, LINUX, MAC;

    30     private static final Platform platform;

    31     private static final int majorVersion;

    32     private static final int minorVersion;

    33 

    34     static {

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

    36 

    37         if (os.contains("win")) {

    38             platform = Platform.WINDOWS;

    39         } else if (os.contains("nix") || os.contains("nux")) {

    40             platform = Platform.LINUX;

    41         } else if (os.contains("mac")) {

    42             platform = Platform.MAC;

    43         } else {

    44             platform = Platform.UNKNOWN;

    45         }

    46 

    47         String version = System.getProperty("os.version");

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

    49 

    50         if (parts.length > 0) {

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

    52 

    53             if (parts.length > 1) {

    54                 minorVersion = Integer.parseInt(parts[0]);

    55             } else {

    56                 minorVersion = -1;

    57             }

    58         } else {

    59             majorVersion = -1;

    60             minorVersion = -1;

    61         }

    62     }

    63 

    64     private Platform() {

    65     }

    66 

    67     public static Platform getPlatform() {

    68         return platform;

    69     }

    70 

    71     public static boolean isWindows() {

    72         return (platform == Platform.WINDOWS);

    73     }

    74 

    75     public static int getMajorVersion() {

    76         return majorVersion;

    77     }

    78 

    79     public static int getMinorVersion() {

    80         return minorVersion;

    81     }

    82 }