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package io.dico.dicore.command.registration;
import io.dico.dicore.command.ICommandAddress;
import io.dico.dicore.command.ICommandDispatcher;
import org.bukkit.Location;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.List;
/**
* This class extends the bukkit's command class.
* Instances are injected into the command map.
*/
public class BukkitCommand extends Command {
private ICommandDispatcher dispatcher;
private ICommandAddress origin;
public BukkitCommand(ICommandAddress address) {
super(validateTree(address).getNames().get(0), "", "", address.getNames().subList(1, address.getNames().size()));
this.dispatcher = address.getDispatcherForTree();
this.origin = address;
setTimingsIfNecessary(this);
}
private static ICommandAddress validateTree(ICommandAddress tree) {
if (!tree.hasParent()) {
throw new IllegalArgumentException();
}
if (tree.getNames().isEmpty()) {
throw new IllegalArgumentException();
}
return tree;
}
public ICommandAddress getOrigin() {
return origin;
}
@Override
public boolean execute(CommandSender sender, String label, String[] args) {
if (!dispatcher.dispatchCommand(sender, label, args)) {
//System.out.println("failed to dispatch command");
// target command not found, send a message in the future TODO
}
return true;
}
@Override
public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
return this.tabComplete(sender, alias, args, null);
}
//@Override
public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
return dispatcher.getTabCompletions(sender, alias, location, args);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
BukkitCommand that = (BukkitCommand) o;
return getName().equals(that.getName()) && dispatcher == that.dispatcher;
}
@Override
public int hashCode() {
return dispatcher.hashCode() | getName().hashCode();
}
private static void setTimingsIfNecessary(Command object) {
// with paper spigot, the timings are not set by super constructor but by CommandMap.register(), which is not invoked for this system
// I use reflection so that the project does not require paper spigot to build
try {
// public field
Field field = Command.class.getDeclaredField("timings");
if (field.get(object) != null) return;
Class<?> clazz = Class.forName("co.aikar.timings.TimingsManager");
// public method
Method method = clazz.getDeclaredMethod("getCommandTiming", String.class, Command.class);
Object timings = method.invoke(null, "", object);
field.set(object, timings);
} catch (Throwable ignored) {
}
}
/*
public static void registerToMap(ICommandAddress tree, Map<String, Command> map) {
BukkitCommand command = new BukkitCommand(tree);
Iterator<String> iterator = tree.getNames().iterator();
map.put(iterator.next(), command);
while (iterator.hasNext()) {
map.putIfAbsent(iterator.next(), command);
}
}
public static void unregisterFromMap(ICommandAddress tree, Map<String, Command> map) {
map.values().remove(new BukkitCommand(tree));
}
public static void registerChildrenToMap(ICommandAddress tree, Map<String, Command> map) {
for (Map.Entry<String, ? extends ICommandAddress> entry : tree.getChildren().entrySet()) {
ICommandAddress child = entry.getValue();
registerToMap(child, map);
}
}
public static void unregisterChildenFromMap(ICommandAddress tree, Map<String, Command> map) {
for (Map.Entry<String, ? extends ICommandAddress> entry : tree.getChildren().entrySet()) {
ICommandAddress child = entry.getValue();
unregisterFromMap(child, map);
}
}
*/
}
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