help with issued server command

I am trying to remove the message when a player issues a command from the console. I recently added a json library to my plugin and I am trying to prevent spam clicks on the words.
I figured out that I need to use playercommandpreprocessevent but it doesn't seem to do anything.
code:

Code:

@EventHandler(priority = EventPriority.HIGHEST)
    public void onSpeech(PlayerCommandPreprocessEvent event) {
        if (event.getMessage().contains("speechtrait")) {
            UUID player = event.getPlayer().getUniqueId();
            String[] args = event.getMessage().split(" ");
            int id = Integer.parseInt(args[args.length - 1]);
            String type = args[args.length - 2];
            if (addCach(player, type, id, false)) {
                event.setCancelled(true);
            }
        }
    }

    public boolean addCach(UUID player, String type, int number,
            boolean removing) {
        if (cachedrespone.get(player) != null) {
            if (cachedrespone.get(player).get(type) != null) {
                if (cachedrespone.get(player).get(type).contains(number)) {
                    if (removing) {
                        cachedrespone.get(player).get(type).remove(number);
                        return false;
                    }
                    return true;
                } else {
                    if (!removing) {
                        cachedrespone.get(player).get(type).add(number);
                    }
                    return false;
                }
            } else {
                if (!removing) {
                    Set<Integer> t = new HashSet<Integer>();
                    t.add(number);
                    cachedrespone.get(player).put(type, t);
                }
                return false;
            }
        } else {
            if (!removing) {
                HashMap<String, Set<Integer>> temp = new HashMap<String, Set<Integer>>();
                Set<Integer> t = new HashSet<Integer>();
                t.add(number);
                temp.put(type, t);
                cachedrespone.put(player, temp);
            }
            return false;
        }
    }

and yes I registered the event. I already tried debugging it with a message just below the event.setcaneled and I got that message.

 

I'll look into it when I can access my pc again. Do you have any tips for hooking into the logger?

 

Just red the thread I am liking it already. Also will help me saving for crashes

 

For my plugin it handles npcs as well. I don't want those death standing entities. With the close method you can use in the thread you mentioned I can kill those entities

 

@timtower I tried using the thread you provided and found a few problems.
1. when I add a handler it does not trigger on command uses only when a plugin uses Logger.info.
2. when I try to make a filter the server just stops working. no stacktrace, just stops.
I tried decompiling the .jar file but couldn't find it.

 

@timtower small bumb but I found out that the issued command is some sort of System.out. now my Java knowledge is not sufficient enough to think about intercepting this print. do you have any ideas

 

@timtower
ehm. when the code comes at the point of logger.addFilter. the server just stops. no stacktrace nothing. even when I remove the temp =. and just use new Filter is just stops working.

Code:

    public SpeechListener(HUDmain instance) {

        System.out.println("getting logger");
        Logger logger = (Logger) LogManager.getRootLogger();
        if (logger != null) {
            Filter temp = logger.getFilters().next();

            System.out.println("level set");
            logger.setLevel(Level.ALL);
            System.out.println("adding filter");
            logger.addFilter(temp = new Filter() {

                @Override
                public Result filter(LogEvent event) {
                    System.out.println("in log event");
                    if (event != null && event.getMessage() != null) {
                        System.out.println(event.getMessage());
                    }
                    return null;
                }

                @Override
                public Result filter(Logger arg0, Level arg1, Marker arg2,
                        String arg3, Object... arg4) {
                    System.out.println("filter object");
                    return null;
                }

                @Override
                public Result filter(Logger arg0, Level arg1, Marker arg2,
                        Object arg3, Throwable arg4) {
                    System.out.println("filter throw");
                    return null;
                }

                @Override
                public Result filter(Logger arg0, Level arg1, Marker arg2,
                        Message arg3, Throwable arg4) {
                    System.out.println("filter message");
                    return null;
                }

                @Override
                public Result getOnMatch() {
                    System.out.println("on match");
                    return null;
                }

                @Override
                public Result getOnMismatch() {
                    System.out.println("mismatch");
                    return null;
                }

            });
            System.out.println("finished logger");
        }
    }

 

@timtower sorry for late response had to catch a bus. the problem is still the same. when I add the filter it just stops.
edit: when using .getLogger. it doesn't stop the server but it doesn't do anything. I can add the filter but the filter doesn't work (it doesn't fire the debug message)

 

@timtower could you find anything or did you hit a wall as well?

 

@timtower found it where it sends it to the console. I only found it in a spigot.jar unfortunately.
it is indeed a standard system.out.println. which is in the craftbukkit.jar under craftconsolecommandsender.
so basicly I need to intercept it trough a own printstream.

 

@timtower also found that the logger uses the printstream directly to print messages. Even setting a new printstream using system.setout won't work. Have not found the problem with the filters yet