Setting server to hardcore mode possible?

I would like to make sure the server is in hardcore from my plugin and if not set it to true.

 

For getting if it's in hardcore you want Server#isHardcore();
https://hub.spigotmc.org/javadocs/spigot/org/bukkit/Server.html#isHardcore()

Will update when I find the method for setting hardcore.

 

I would like to set it.

 

WorldData#g(boolean flag) through nms on version 1.8R_3

That's the way I found atleast.

Why can't you just set it in the server properties file?

 

Thanks offtopic but, is there a way to edit the server.properties file from bukkit/get it's location(not manually putting in location) from plugin.

 

Ofcourse, why would you want to though, it's just making a lot more work for yourself, unless you're releasing this plugin to others. In which case accessing their server properties file would most likely be counted as malicious code.

 

Im making a Private plugin to make sure everything is set right.

 

@Lightspeed

Because servers randomly change their settings files? Yes, it is possible, just look in the directory of the running program.

 

How can I get the directory from the plugin?
From a method not a set url.

 

@Lightspeed

Errr. We don't use URLs? Do you mean a "path?"

After looking at the first result from Google:

System.getProperty("user.dir")

This returns the absolute directory from which the application was started.

 

Yes I mean path but, it usally calls it a url and I couldn't think of path.
This is what I was looking for.