Solved Is player online? (Asynchronously)

Okay, so i basically HAVE to call some kind of "is player online" function inside an asynchronos task, but since i can't use Bukkit calls and only have access to the players name, how would i do it?

Thanks.

 

9903286
Please post your code or else it is very hard for us to understand what you are trying to do..

 

9903286 define: "kind of player"

 

bartboy8
My code:

Code:

Bukkit.getScheduler().runTaskTimerAsynchronously(instance, new Runnable() {
            public void run() {
                try {
                   
                    Statement st;
                    Connection con = DriverManager.getConnection(MPSPoints.url, MPSPoints.user, MPSPoints.password);
                    st = con.createStatement();
                   
                    ResultSet rset = st.executeQuery("SELECT * FROM stuff;");
                    if(!rset.next()) {
                        return;
                    }
                    while (rset.next()) {
                        CHECK IF rset.getString(2) is online!
                    }
 
                    con.close();
                   
                } catch (SQLException e) {}
            }
        }, 20, 1200);

Peary
It was meant to be "to call some kind of "is player online" function inside an".

 

Use a Callable

Code:java

public class getPlayer<Player> implements Callable<Player> {
 
    private final String name;
 
    public getPlayer(String name) {
        this.name = name;
    }
 
    public Player call() {
        return Bukkit.getPlayer(this.name);
    }
 
}

Then just do a null check.

That would cause a connection leak when you return before closing. Also, you don't need sql to verify if someone is online, just call the method from the main thread.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

1Rogue
Uhm, well, i'm getting the player name from the SQL, so i probably do.
It's supposed to get "playername, items" from mysql, check if "playername" is online, and if he is add "item" to inventory.

And i'm stuck on the checking online part, but i'll try your solution.

 

9903286

Code:java

        final String player = "someGuy";
        Future f = Bukkit.getScheduler().callSyncMethod(<Plugin Instance>, new Callable<Boolean>()
        {
            @Override
            public Boolean call() throws Exception
            {
                return Bukkit.getPlayerExact(player) != null;
            }
 
        });
        boolean playerOnline;
        try
        {
            playerOnline = ((Boolean) f.get()).booleanValue();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

 

1Rogue
While your code worked, i decided to go with The_Doctor_123 's instead, just cause it was easier to add to the code.
The_Doctor_123
Your code worked.