DriverFactory Class

package framework;
import java.net.MalformedURLException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
public class DriverFactory {
	
  private static final String DRIVER_PATH = "./src/main/resources/";
	
  private DriverFactory()
  {
  }
  public static WebDriver getDriver(String name) 
          throws MalformedURLException
  {
     if (!name.equals("chrome"))
        throw new RuntimeException(name + " is  not a valid driver name!");
	    	
     if (isWindows())
     {
        System.setProperty("webdriver.chrome.driver", 
                           DRIVER_PATH + "chromedriver.exe");
 
        return new ChromeDriver(options());
     }
	    	
     if (isUnix())
     {
        System.setProperty("webdriver.chrome.driver", 
                           DRIVER_PATH + "chromedriver");
        return new ChromeDriver(headlessOptions());
     }
	    	
     throw new RuntimeException("unknown operating system!");
  }
	 
  private static ChromeOptions options()
  {
     ChromeOptions options = new ChromeOptions();
     options.addArguments("--window-size=1280,800");
     return options;
  }
  private static ChromeOptions headlessOptions()
  {
     ChromeOptions options = new ChromeOptions();
	     
     options.addArguments("--window-size=1280,800");
     options.addArguments("--disable-gpu");
     options.addArguments("--disable-setuid-sandbox");
     options.addArguments("--no-sandbox");
     options.addArguments("--headless");
     options.addArguments("--verbose");
     options.addArguments("--whitelisted-ips=");
     options.addArguments("--disable-extensions");
     return options;
  }
	  
  private static boolean isWindows() 
  {
     return OS().indexOf("win") >= 0;
  }
  private static boolean isUnix() 
  {
     String os = OS();
		 
     return (
              os.indexOf("nix") >= 0 || 
              os.indexOf("nux") >= 0 || 
              os.indexOf("aix") > 0 );
  }
	  
  private static String OS()
  {
    return System.getProperty("os.name").toLowerCase();
  }
}