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Java example source code file (Platform.java)

This example Java source code file (Platform.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

platform, string

The Platform.java Java example source code

/*
 * Copyright (c) 2013, 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.
 *
 * 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 com.oracle.java.testlibrary;

public class Platform {
    private static final String osName      = System.getProperty("os.name");
    private static final String dataModel   = System.getProperty("sun.arch.data.model");
    private static final String vmVersion   = System.getProperty("java.vm.version");
    private static final String osArch      = System.getProperty("os.arch");

    public static boolean is32bit() {
        return dataModel.equals("32");
    }

    public static boolean is64bit() {
        return dataModel.equals("64");
    }

    public static boolean isSolaris() {
        return isOs("sunos");
    }

    public static boolean isWindows() {
        return isOs("win");
    }

    public static boolean isOSX() {
        return isOs("mac");
    }

    public static boolean isLinux() {
        return isOs("linux");
    }

    private static boolean isOs(String osname) {
        return osName.toLowerCase().startsWith(osname.toLowerCase());
    }

    public static String getOsName() {
        return osName;
    }

    public static boolean isDebugBuild() {
        return vmVersion.toLowerCase().contains("debug");
    }

    public static String getVMVersion() {
        return vmVersion;
    }

    // Returns true for sparc and sparcv9.
    public static boolean isSparc() {
        return isArch("sparc");
    }

    public static boolean isARM() {
        return isArch("arm");
    }

    public static boolean isPPC() {
        return isArch("ppc");
    }

    public static boolean isX86() {
        // On Linux it's 'i386', Windows 'x86'
        return (isArch("i386") || isArch("x86"));
    }

    public static boolean isX64() {
        // On OSX it's 'x86_64' and on other (Linux, Windows and Solaris) platforms it's 'amd64'
        return (isArch("amd64") || isArch("x86_64"));
    }

    private static boolean isArch(String archname) {
        return osArch.toLowerCase().startsWith(archname.toLowerCase());
    }

    public static String getOsArch() {
        return osArch;
    }

}

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