/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.bukkit.util;
import com.sk89q.util.ReflectionUtil;
import org.bukkit.Bukkit;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandMap;
import org.bukkit.command.SimpleCommandMap;
import org.bukkit.plugin.Plugin;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class CommandRegistration {
static {
Bukkit.getServer().getHelpMap().registerHelpTopicFactory(DynamicPluginCommand.class, new DynamicPluginCommandHelpTopic.Factory());
}
protected final Plugin plugin;
protected final CommandExecutor executor;
private CommandMap fallbackCommands;
public CommandRegistration(Plugin plugin) {
this(plugin, plugin);
}
public CommandRegistration(Plugin plugin, CommandExecutor executor) {
this.plugin = plugin;
this.executor = executor;
}
public boolean register(List<CommandInfo> registered) {
CommandMap commandMap = getCommandMap();
if (registered == null || commandMap == null) {
return false;
}
for (CommandInfo command : registered) {
DynamicPluginCommand cmd = new DynamicPluginCommand(command.getAliases(),
command.getDesc(), "/" + command.getAliases()[0] + " " + command.getUsage(), executor, command.getRegisteredWith(), plugin);
cmd.setPermissions(command.getPermissions());
commandMap.register(plugin.getDescription().getName(), cmd);
}
return true;
}
public CommandMap getCommandMap() {
CommandMap commandMap = ReflectionUtil.getField(plugin.getServer().getPluginManager(), "commandMap");
if (commandMap == null) {
if (fallbackCommands != null) {
commandMap = fallbackCommands;
} else {
Bukkit.getServer().getLogger().severe(plugin.getDescription().getName() +
": Could not retrieve server CommandMap, using fallback instead!");
fallbackCommands = commandMap = new SimpleCommandMap(Bukkit.getServer());
Bukkit.getServer().getPluginManager().registerEvents(new FallbackRegistrationListener(fallbackCommands), plugin);
}
}
return commandMap;
}
public boolean unregisterCommands() {
CommandMap commandMap = getCommandMap();
List<String> toRemove = new ArrayList<String>();
Map<String, org.bukkit.command.Command> knownCommands = ReflectionUtil.getField(commandMap, "knownCommands");
Set<String> aliases = ReflectionUtil.getField(commandMap, "aliases");
if (knownCommands == null || aliases == null) {
return false;
}
for (Iterator<org.bukkit.command.Command> i = knownCommands.values().iterator(); i.hasNext();) {
org.bukkit.command.Command cmd = i.next();
if (cmd instanceof DynamicPluginCommand && ((DynamicPluginCommand) cmd).getOwner().equals(executor)) {
i.remove();
for (String alias : cmd.getAliases()) {
org.bukkit.command.Command aliasCmd = knownCommands.get(alias);
if (cmd.equals(aliasCmd)) {
aliases.remove(alias);
toRemove.add(alias);
}
}
}
}
for (String string : toRemove) {
knownCommands.remove(string);
}
return true;
}
}