CommandMapUtil.java 文件源码

/**
 * Unregisters a CommandExecutor with the server
 *
 * @param command the command instance
 * @param <T> the command executor class type
 * @return the command executor
 */
@Nonnull
public static <T extends CommandExecutor> T unregisterCommand(@Nonnull T command) {
    CommandMap map = getCommandMap();
    try {
        //noinspection unchecked
        Map<String, Command> knownCommands = (Map<String, Command>) KNOWN_COMMANDS_FIELD.get(map);

        Iterator<Command> iterator = knownCommands.values().iterator();
        while (iterator.hasNext()) {
            Command cmd = iterator.next();
            if (cmd instanceof PluginCommand) {
                CommandExecutor executor = ((PluginCommand) cmd).getExecutor();
                if (command == executor) {
                    cmd.unregister(map);
                    iterator.remove();
                }
            }
        }
    } catch (Exception e) {
        throw new RuntimeException("Could not unregister command", e);
    }

    return command;
}