Thanks for all the hard work! I guess I will provide both the *.tgz file you suggested, as well as the previously mentioned installer. Let people choose.
My friend told me the game would not start using the installer. After he accepts the certificate, nothing happens. Do you have the same problem?
[quote]Ah… I just launched the app and see that the bundle is really just a stub that launches the app via web start… maybe web start will handle all the details… Though I notice that after the stub has started the Web Start process you only see the Web Start icon in the dock, not your application’s icon. It seems to work though.
[/quote]
Yes, it’s just a stub. That way, the game “updates” itself automatically! Just using the jnlp functionality rather than reinventing the wheel myself. The web start process should show the game icon, after the game window comes up. This does not happen?
That’s the code I use in case you are interested:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JOptionPane;
/**
* Allows to run a webstart application.
*
* @author Christoph Aschwanden
* @since March 30, 2006
*/
public final class WebstartRunner {
/**
* Private to prevent instantiation of this class.
*/
private WebstartRunner() {
// does nothing.
}
/**
* Runs the inputted jnlp file.
*
* @param jnlp The location of the online jnlp to run.
* @param localVersion The version of the installer we are running to start the jnlp.
*/
public static void run(String jnlp, int localVersion) {
// find if OS is windows
String osName = System.getProperty("os.name").toLowerCase();
boolean windowsOS = osName.indexOf("windows") > 0;
// find Java home directory
String javaHome = System.getProperty("java.home");
String fileSeparator = System.getProperty("file.separator");
// set quoting style (windows only can use quotes)
String quote = windowsOS ? "\"" : "";
// check if version is still good
String jnlpPath = jnlp.substring(0, jnlp.lastIndexOf("/") + 1);
String requiredVersionFile = jnlpPath + "RequiredWebstartRunner.version";
try {
// find remote version
URL url = new URL(requiredVersionFile);
URLConnection connection = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String line = reader.readLine();
int remoteVersion = Integer.parseInt(line);
// check if still valid
if (remoteVersion > localVersion) {
// tell newer version available
JOptionPane.showMessageDialog(null
, "A new version of the Aevum Obscurum game client is available!\n"
+ "Please go to http://www.aevumobscurum.com for information and download.\n"
+ "\n"
+ "\n"
, "Aevum Obscurum: New Version Available."
, JOptionPane.ERROR_MESSAGE);
// need to redownload!
System.out.println("Redownload of installer required. New version available");
}
else {
// build list of commands
String[] cmd = new String[2];
cmd[0] = quote + javaHome + fileSeparator + "bin" + fileSeparator + "javaws" + quote;
cmd[1] = jnlp;
// set property!
System.setProperty("runtime.start.method", "install4j");
System.setProperty("runtime.start.version", "" + localVersion);
// and execute command!
try {
Runtime.getRuntime().exec(cmd);
}
catch (IOException e) {
System.err.println("Cannot start the webstart file (" + jnlp + "): " + e);
}
}
}
catch (IOException e) {
// server down or file not found - connection cannot be established
JOptionPane.showMessageDialog(null
, "The connection to the Aevum Obscurum server could not be established.\n"
+ "Please try again later or go to http://www.aevumobscurum.com for further "
+ "information.\n"
+ "\n"
+ "We apologize for any inconvenience this might cause you.\n"
+ "\n"
+ "\n"
, "Error Connecting to Aevum Obscurum Server"
, JOptionPane.ERROR_MESSAGE);
// output error to console
System.err.println("IO exception (" + requiredVersionFile + "): " + e);
}
}
/**
* The main method which will be called.
*
* @param args The arguments for the webstart runner.
* args[0] should be the location of the .jnlp file to run.
* args[1] the version of the installer.
*/
public static void main(String[] args) {
run(args[0], Integer.parseInt(args[1]));
}
}
