org.apache.commons.lang.SystemUtils#IS_OS_MAC_OSX源码实例Demo

/**
 * Where everything starts. Takes in, and tries to parse as many commandline arguments as possible.
 * Otherwise, it launches a GUI.
 *
 * @param args Array of command line arguments.
 */
public static void main(String[] args) throws MalformedURLException {
    CommandLine cl = getArgs(args);

    if (args.length > 0 && cl.hasOption('v')){
        logger.info(UpdateUtils.getThisJarVersion());
        System.exit(0);
    }

    if (Utils.getConfigString("proxy.http", null) != null) {
        Proxy.setHTTPProxy(Utils.getConfigString("proxy.http", null));
    } else if (Utils.getConfigString("proxy.socks", null) != null) {
        Proxy.setSocks(Utils.getConfigString("proxy.socks", null));
    }

    // This has to be here instead of handleArgs because handleArgs isn't parsed until after a item is ripper
    if (cl.hasOption("a")) {
        logger.info(cl.getOptionValue("a"));
        stringToAppendToFoldername = cl.getOptionValue("a");
    }

    if (GraphicsEnvironment.isHeadless() || args.length > 0) {
        handleArguments(args);
    } else {
        if (SystemUtils.IS_OS_MAC_OSX) {
            System.setProperty("apple.laf.useScreenMenuBar", "true");
            System.setProperty("com.apple.mrj.application.apple.menu.about.name", "RipMe");
        }

        Utils.configureLogger();

        logger.info("Initialized ripme v" + UpdateUtils.getThisJarVersion());

        MainWindow mw = new MainWindow();
        SwingUtilities.invokeLater(mw);
    }
}
 

private static CharSequence getOS() {
	if (SystemUtils.IS_OS_LINUX) {
		return "linux";
	} else if (SystemUtils.IS_OS_WINDOWS) {
		return "win32";
	} else if (SystemUtils.IS_OS_MAC || SystemUtils.IS_OS_MAC_OSX) {
		return "macosx";
	} else {
		throw new IllegalArgumentException("Unsupported OS");
	}
}
 

@Override
protected boolean isApplicable() {
    final boolean nettyDoesSupportMacUnixSockets = SystemUtils.IS_OS_MAC_OSX &&
            ComparableVersion.OS_VERSION.isGreaterThanOrEqualTo("10.12");

    return SystemUtils.IS_OS_LINUX || nettyDoesSupportMacUnixSockets;
}
 

@BeforeClass
public static void setUpBeforeClass() {
    // set the NO_EVENT_TIMEOUT_IN_SECONDS according to the operating system used
    if (SystemUtils.IS_OS_MAC_OSX) {
        NO_EVENT_TIMEOUT_IN_SECONDS = 15;
    } else {
        NO_EVENT_TIMEOUT_IN_SECONDS = 3;
    }
}
 

@Override
public EventLoopGroup init(Bootstrap bootstrap, DockerClientConfig dockerClientConfig) {
    if (SystemUtils.IS_OS_LINUX) {
        return epollGroup();
    } else if (SystemUtils.IS_OS_MAC_OSX) {
        return kqueueGroup();
    }
    throw new RuntimeException("Unsupported OS");
}
 

/**
 * Figure out where the tools.jar file lives.
 */
private URL findToolsJar() throws MojoExecutionException {
    final File javaHome = FileUtils.resolveFile(new File(File.pathSeparator), System.getProperty("java.home"));
    
    final List<File> toolsPaths = new ArrayList<File>();
    
    File file = null;
    if (SystemUtils.IS_OS_MAC_OSX) {
        file = FileUtils.resolveFile(javaHome, "../Classes/classes.jar");
        toolsPaths.add(file);
    }
    if (file == null || !file.exists()) {
        file = FileUtils.resolveFile(javaHome, "../lib/tools.jar");
        toolsPaths.add(file);
    }
    
    if (!file.exists()) {
        throw new MojoExecutionException("Could not find tools.jar at " + toolsPaths + " under java.home: " + javaHome);
    }
    getLog().debug("Using tools.jar: " + file);
    
    final URI fileUri = file.toURI();
    try {
        return fileUri.toURL();
    }
    catch (MalformedURLException e) {
        throw new MojoExecutionException("Could not generate URL from URI: " + fileUri, e);
    }
}