BrowserLauncher.java Source code

Introduction

Here is the source code for BrowserLauncher.java

Source

////////////////////////////////////////////////////////
// Bare Bones Browser Launch                          //
// Version 1.2                                        //
// November 11, 2005                                  //
// Supports: Mac OS X, GNU/Linux, Unix, Windows XP    //
// Example Usage:                                     //
//    String url = "http://www.centerkey.com/";       //
//    BareBonesBrowserLaunch.openURL(url);            //
// Public Domain Software -- Free to Use as You Like  //
////////////////////////////////////////////////////////

//package mvplan.util;

import java.lang.reflect.Method;

import javax.swing.JOptionPane;

public class BrowserLauncher {

    private static final String errMsg = "Error attempting to launch web browser";

    public static void openURL(String url) {
        int os = PlatformDetector.detect();

        try {
            if (os == PlatformDetector.MACOS) {
                Class macUtils = Class.forName("com.apple.mrj.MRJFileUtils");
                Method openURL = macUtils.getDeclaredMethod("openURL", new Class[] { String.class });
                openURL.invoke(null, new Object[] { url });
            } else if (os == PlatformDetector.WINDOWS)
                Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + url);
            else { // assume Unix or Linux
                String[] browsers = { "firefox", "opera", "konqueror", "epiphany", "mozilla", "netscape" };
                String browser = null;
                for (int count = 0; count < browsers.length && browser == null; count++)
                    if (Runtime.getRuntime().exec(new String[] { "which", browsers[count] }).waitFor() == 0)
                        browser = browsers[count];
                if (browser == null)
                    throw new Exception("Could not find web browser.");
                else
                    Runtime.getRuntime().exec(new String[] { browser, url });
            }
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null, errMsg + ":\n" + e.getLocalizedMessage());
        }
    }

}

class PlatformDetector {
    public static final int MACOS = 0;
    public static final int UNIX = 1;
    public static final int WINDOWS = 3;

    /** Creates a new instance of PlatformDetector */
    public static int detect() {
        String osName = System.getProperty("os.name");
        if (osName.startsWith("Mac OS"))
            return MACOS;
        else if (osName.startsWith("Windows"))
            return WINDOWS;
        else
            // assume Unix or Linux
            return UNIX;
    }
}