geforkt von Mirrors/FastAsyncWorldEdit
Added nested command support.
Dieser Commit ist enthalten in:
sk89q
Ursprung
78c78fee1f
Commit
01f7be3ba3
@ -18,6 +18,8 @@
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package com.sk89q.util;
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import java.util.List;
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/**
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* String utilities.
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*
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@ -133,4 +135,24 @@ public class StringUtil {
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}
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return buffer.toString();
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}
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/**
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* Join an list of strings into a string.
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*
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* @param str
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* @param delimiter
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* @param initialIndex
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* @return
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*/
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public static String joinString(List<String> str, String delimiter,
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int initialIndex) {
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if (str.size() == 0) {
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return "";
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}
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StringBuilder buffer = new StringBuilder(str.get(initialIndex).toString());
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for (int i = initialIndex + 1; i < str.size(); i++) {
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buffer.append(delimiter).append(str.get(i).toString());
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}
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return buffer.toString();
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}
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}
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@ -24,9 +24,9 @@ import java.lang.annotation.RetentionPolicy;
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@Retention(RetentionPolicy.RUNTIME)
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public @interface Command {
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String[] aliases();
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String usage();
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String usage() default "";
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String desc();
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int min();
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int max();
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int min() default 0;
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int max() default -1;
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String flags() default "";
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}
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28
src/com/sk89q/util/commands/NestedCommand.java
Normale Datei
28
src/com/sk89q/util/commands/NestedCommand.java
Normale Datei
@ -0,0 +1,28 @@
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// $Id$
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/*
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* WorldEdit
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* Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.util.commands;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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@Retention(RetentionPolicy.RUNTIME)
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public @interface NestedCommand {
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Class<?>[] value();
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}
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@ -30,7 +30,6 @@ import java.util.logging.Logger;
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import java.io.*;
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import javax.script.ScriptException;
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import com.sk89q.util.StringUtil;
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import com.sk89q.util.commands.CommandContext;
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import com.sk89q.worldedit.LocalSession.CompassMode;
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import com.sk89q.worldedit.bags.BlockBag;
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import com.sk89q.worldedit.blocks.*;
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@ -841,7 +840,7 @@ public class WorldEdit {
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+ StringUtil.joinString(split, " "));
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}
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return commands.execute(new CommandContext(split), this,
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return commands.execute(split, this,
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session, player, editSession);
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} finally {
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session.remember(editSession);
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@ -21,10 +21,14 @@ package com.sk89q.worldedit.commands;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import com.sk89q.util.StringUtil;
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import com.sk89q.util.commands.Command;
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import com.sk89q.util.commands.CommandContext;
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import com.sk89q.util.commands.NestedCommand;
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import com.sk89q.worldedit.EditSession;
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import com.sk89q.worldedit.LocalPlayer;
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import com.sk89q.worldedit.LocalSession;
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@ -38,9 +42,10 @@ import com.sk89q.worldedit.WorldEditException;
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*/
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public class CommandsManager {
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/**
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* Mapping of commands (including aliases) with their method.
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* Mapping of nested commands (including aliases) with a description.
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*/
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public Map<String, Method> commands = new HashMap<String, Method>();
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public Map<Method, Map<String, Method>> commands
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= new HashMap<Method, Map<String, Method>>();
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/**
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* Mapping of commands (not including aliases) with a description.
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*/
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@ -55,6 +60,25 @@ public class CommandsManager {
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* @param cls
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*/
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public void register(Class<?> cls) {
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registerMethods(cls, null);
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}
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/**
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* Register the methods of a class.
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*
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* @param cls
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* @param parent
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*/
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private void registerMethods(Class<?> cls, Method parent) {
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Map<String, Method> map;
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if (commands.containsKey(parent)) {
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map = commands.get(parent);
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} else {
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map = new HashMap<String, Method>();
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commands.put(parent, map);
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}
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for (Method method : cls.getMethods()) {
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if (!method.isAnnotationPresent(Command.class)) {
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continue;
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@ -64,7 +88,7 @@ public class CommandsManager {
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// Cache the commands
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for (String alias : cmd.aliases()) {
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commands.put(alias, method);
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map.put(alias, method);
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}
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// Build a list of commands and their usage details
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@ -73,6 +97,14 @@ public class CommandsManager {
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} else {
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descs.put(cmd.aliases()[0], cmd.usage() + " - " + cmd.desc());
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}
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if (method.isAnnotationPresent(NestedCommand.class)) {
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NestedCommand nestedCmd = method.getAnnotation(NestedCommand.class);
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for (Class<?> nestedCls : nestedCmd.value()) {
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registerMethods(nestedCls, method);
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}
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}
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}
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}
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@ -83,7 +115,7 @@ public class CommandsManager {
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* @return
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*/
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public boolean hasCommand(String command) {
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return commands.containsKey(command.toLowerCase());
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return commands.get(null).containsKey(command.toLowerCase());
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}
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/**
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@ -98,14 +130,71 @@ public class CommandsManager {
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/**
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* Get the usage string for a command.
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*
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* @param command
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* @param args
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* @param level
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* @param cmd
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* @return
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*/
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private String getUsage(String command, Command cmd) {
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return command
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+ (cmd.flags().length() > 0 ? " [-" + cmd.flags() + "] " : " ")
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+ cmd.usage();
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private String getUsage(String[] args, int level, Command cmd) {
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StringBuilder command = new StringBuilder();
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command.append("/");
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for (int i = 0; i <= level; i++) {
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command.append(args[i] + " ");
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}
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command.append(cmd.flags().length() > 0 ? "[-" + cmd.flags() + "] " : "");
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command.append(cmd.usage());
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return command.toString();
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}
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/**
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* Get the usage string for a nested command.
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*
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* @param args
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* @param level
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* @param method
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* @param palyer
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* @return
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*/
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private String getNestedUsage(String[] args, int level, Method method,
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LocalPlayer player) {
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StringBuilder command = new StringBuilder();
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command.append("/");
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for (int i = 0; i <= level; i++) {
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command.append(args[i] + " ");
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}
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Map<String, Method> map = commands.get(method);
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command.append("<");
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List<String> allowedCommands = new ArrayList<String>();
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for (Map.Entry<String, Method> entry : map.entrySet()) {
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Method childMethod = entry.getValue();
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if (hasPermission(childMethod, player)) {
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Command childCmd = childMethod.getAnnotation(Command.class);
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allowedCommands.add(childCmd.aliases()[0]);
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}
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}
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if (allowedCommands.size() > 0) {
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command.append(StringUtil.joinString(allowedCommands, "|", 0));
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} else {
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command.append("action");
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}
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command.append(">");
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return command.toString();
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}
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/**
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@ -118,43 +207,85 @@ public class CommandsManager {
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* @param editSession
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* @return
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*/
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public boolean execute(CommandContext args, WorldEdit we,
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public boolean execute(String[] args, WorldEdit we,
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LocalSession session, LocalPlayer player, EditSession editSession)
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throws WorldEditException, Throwable {
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Method method = commands.get(args.getCommand().toLowerCase());
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return executeMethod(null, args, we, session, player, editSession, 0);
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}
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/**
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* Attempt to execute a command.
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*
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* @param parent
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* @param args
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* @param we
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* @param session
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* @param player
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* @param editSession
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* @param level
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* @return
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*/
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public boolean executeMethod(Method parent, String[] args, WorldEdit we,
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LocalSession session, LocalPlayer player, EditSession editSession,
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int level) throws WorldEditException, Throwable {
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String cmdName = args[level];
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Map<String, Method> map = commands.get(parent);
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Method method = map.get(cmdName.toLowerCase());
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if (method == null) {
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return false; // No command
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if (parent == null) { // Root
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return false;
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} else {
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player.printError(getNestedUsage(args, level - 1, method, player));
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return true;
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}
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}
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if (!checkPermissions(method, player)) {
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return true;
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}
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int argsCount = args.length - 1 - level;
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if (method.isAnnotationPresent(NestedCommand.class)) {
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if (argsCount == 0) {
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player.printError(getNestedUsage(args, level, method, player));
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return true;
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} else {
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return executeMethod(method, args, we, session, player,
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editSession, level + 1);
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}
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} else {
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Command cmd = method.getAnnotation(Command.class);
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if (args.argsLength() < cmd.min()) {
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String[] newArgs = new String[args.length - level];
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System.arraycopy(args, level, newArgs, 0, args.length - level);
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CommandContext context = new CommandContext(newArgs);
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if (context.argsLength() < cmd.min()) {
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player.printError("Too few arguments.");
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player.printError(getUsage(args.getCommand(), cmd));
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player.printError(getUsage(args, level, cmd));
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return true;
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}
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if (cmd.max() != -1 && args.argsLength() > cmd.max()) {
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if (cmd.max() != -1 && context.argsLength() > cmd.max()) {
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player.printError("Too many arguments.");
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player.printError(getUsage(args.getCommand(), cmd));
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player.printError(getUsage(args, level, cmd));
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return true;
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}
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for (char flag : args.getFlags()) {
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for (char flag : context.getFlags()) {
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if (cmd.flags().indexOf(String.valueOf(flag)) == -1) {
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player.printError("Unknown flag: " + flag);
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player.printError(getUsage(args.getCommand(), cmd));
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player.printError(getUsage(args, level, cmd));
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return true;
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}
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}
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try {
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method.invoke(null, args, we, session, player, editSession);
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method.invoke(null, context, we, session, player, editSession);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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@ -168,11 +299,43 @@ public class CommandsManager {
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throw e.getCause();
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}
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}
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}
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return true;
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}
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/**
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* Checks permissions, prints an error if needed.
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*
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* @param method
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* @param player
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* @return
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*/
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private boolean checkPermissions(Method method, LocalPlayer player) {
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if (!method.isAnnotationPresent(CommandPermissions.class)) {
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return true;
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}
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CommandPermissions perms = method.getAnnotation(CommandPermissions.class);
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for (String perm : perms.value()) {
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if (player.hasPermission(perm)) {
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return true;
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}
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}
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player.printError("You don't have permission for this command.");
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return false;
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}
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/**
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* Returns whether a player has access to a command.
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*
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* @param method
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* @param player
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* @return
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*/
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private boolean hasPermission(Method method, LocalPlayer player) {
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CommandPermissions perms = method.getAnnotation(CommandPermissions.class);
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if (perms == null) {
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return true;
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@ -184,7 +347,6 @@ public class CommandsManager {
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}
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}
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player.printError("You don't have permission for this command.");
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return false;
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}
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}
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