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Update Command System

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This commit is contained in:
Paldiu 2021-04-16 00:51:18 -05:00
parent cdee236c88
commit e617b0f87a
6 changed files with 100 additions and 49 deletions
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2
src/main/java/io/github/simplexdev/simplexcore/SimplexCorePlugin.java
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@ -42,7 +42,7 @@ public final class SimplexCorePlugin extends SimplexModule<SimplexCorePlugin> {
public void start() {
try {
getRegistry().register(this);
getCommandLoader().classpath(Command_info.class).load(this);
getCommandLoader().classpath(this, Command_info.class).load();
getYamlConfig().reload();
getInternals().reload();
//

99
src/main/java/io/github/simplexdev/simplexcore/command/CommandLoader.java
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@ -1,12 +1,13 @@
package io.github.simplexdev.simplexcore.command;
import io.github.simplexdev.api.annotations.CommandInfo;
import io.github.simplexdev.simplexcore.command.defaults.DefaultCommand;
import io.github.simplexdev.simplexcore.SimplexCorePlugin;
import io.github.simplexdev.simplexcore.module.SimplexModule;
import io.github.simplexdev.simplexcore.utils.ReflectionTools;
import io.github.simplexdev.simplexcore.SimplexCorePlugin;
import org.bukkit.Bukkit;
import org.bukkit.command.*;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandMap;
import org.bukkit.command.PluginCommand;
import org.bukkit.command.TabCompleter;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.SimplePluginManager;
import org.jetbrains.annotations.NotNull;
@ -20,7 +21,10 @@ import java.util.MissingResourceException;
public final class CommandLoader {
private Reflections reflections;
private ClassLoader classLoader;
private SimplexModule<?> plugin;
private static final CommandLoader instance = new CommandLoader();
private final Registry registry = new Registry();
/**
* @return A Singleton Pattern instance of this class.
@ -38,15 +42,15 @@ public final class CommandLoader {
* If the class provided does not have the {@link CommandInfo} annotation, the loader will throw a new
* {@link MissingResourceException} and will not load your plugin's commands.
* If the class provided does not extend {@link SimplexCommand}, the loader will throw a new
* {@link RuntimeException} and your commands will not be loaded.
* {@link CommandLoaderException} and your commands will not be loaded.
* </p>
*
* @param clazz The command class to load from
* @return An instance of this where the classpath has been prepared for loading the commands.
*/
public <T extends SimplexCommand> CommandLoader classpath(Class<T> clazz) {
public <T extends SimplexCommand> CommandLoader classpath(SimplexModule<?> plugin, Class<T> clazz) {
if (clazz == null) {
throw new IllegalStateException("The class provided cannot be found!");
throw new IllegalArgumentException("The class provided cannot be found!");
}
if (!clazz.isAnnotationPresent(CommandInfo.class)) {
@ -54,22 +58,26 @@ public final class CommandLoader {
}
if (!SimplexCommand.class.isAssignableFrom(clazz)) {
throw new RuntimeException("Your command must extend SimplexCommand.class for it to be used as the reference point for loading commands.");
throw new CommandLoaderException("Your command must extend SimplexCommand.class for it to be used as the reference point for loading commands.");
}
reflections = ReflectionTools.reflect(clazz);
this.reflections = ReflectionTools.reflect(clazz);
this.plugin = plugin;
this.classLoader = plugin.getClass().getClassLoader();
return this;
}
/**
* Loads all the commands from the specified classpath.
* This should be used immediately after {@link CommandLoader#classpath(Class)} has been called.
* This should be used immediately after {@link CommandLoader#classpath(SimplexModule, Class)} has been called.
* If used before, an exception will be thrown, and your commands will not be loaded.
*
* @param plugin An instance of your plugin to assign as the parent plugin for each command.
*/
public void load(SimplexModule<?> plugin) {
public void load() {
if (reflections == null || plugin == null || classLoader == null) {
throw new CommandLoaderException("Please run CommandLoader#classpath(SimplexModule, Class) first!");
}
reflections.getTypesAnnotatedWith(CommandInfo.class).forEach(annotated -> {
CommandInfo info = annotated.getDeclaredAnnotation(CommandInfo.class);
@ -89,7 +97,7 @@ public final class CommandLoader {
return;
}
PluginCommand command = Registry.create(plugin, info.name().toLowerCase());
PluginCommand command = registry.create(plugin, info.name().toLowerCase());
command.setAliases(Arrays.asList(info.aliases().split(",")));
command.setDescription(info.description());
command.setExecutor(getExecutorFromName(info.name()));
@ -98,7 +106,7 @@ public final class CommandLoader {
command.setPermissionMessage(info.permissionMessage());
command.setTabCompleter(getTabFromName(info.name()));
command.setUsage(info.usage());
Registry.registerCommand(command);
registry.registerCommand(command);
});
}
@ -110,28 +118,27 @@ public final class CommandLoader {
* @param name The name of the command.
* @return An instance of the command class as a CommandExecutor.
*/
public CommandExecutor getExecutorFromName(String name) {
for (Class<? extends CommandExecutor> obj : reflections.getSubTypesOf(CommandExecutor.class)) {
private CommandExecutor getExecutorFromName(String name) {
for (Class<? extends SimplexCommand> obj : reflections.getSubTypesOf(SimplexCommand.class)) {
if (!obj.isAnnotationPresent(CommandInfo.class)) {
SimplexCorePlugin.getInstance()
.getLogger().warning(obj.getSimpleName()
plugin.getLogger().warning(obj.getSimpleName()
+ " is missing a required annotation: "
+ CommandInfo.class.getSimpleName());
continue;
}
CommandInfo info = obj.getDeclaredAnnotation(CommandInfo.class);
if (name.equalsIgnoreCase(info.name())) {
try {
Constructor<? extends CommandExecutor> constr = obj.getDeclaredConstructor();
constr.setAccessible(true);
return constr.newInstance();
} catch (ReflectiveOperationException ignored) {
return new DefaultCommand();
Constructor<? extends CommandExecutor> constr =
ReflectionTools.getDeclaredConstructor(obj, SimplexModule.class);
if (constr == null) {
throw new CommandLoaderException("Constructor does not exist! Are you extending SimplexCommand properly?");
}
return ReflectionTools.initConstructor(constr, plugin);
}
}
}
throw new RuntimeException("Unable to assign a CommandExecutor from the provided classes!");
throw new CommandLoaderException("Unable to assign a CommandExecutor from the provided classes!");
}
/**
@ -143,52 +150,50 @@ public final class CommandLoader {
* @return The command as an instance of TabCompleter
*/
@Nullable
public TabCompleter getTabFromName(String name) {
for (Class<? extends TabCompleter> obj : reflections.getSubTypesOf(TabCompleter.class)) {
private TabCompleter getTabFromName(String name) {
for (Class<? extends SimplexCommand> obj : reflections.getSubTypesOf(SimplexCommand.class)) {
if (!obj.isAnnotationPresent(CommandInfo.class)) {
SimplexCorePlugin.getInstance()
.getLogger().warning(obj.getSimpleName()
plugin.getLogger().warning(obj.getSimpleName()
+ " is missing required annotation: "
+ CommandInfo.class.getSimpleName());
continue;
}
CommandInfo info = obj.getDeclaredAnnotation(CommandInfo.class);
if (name.equalsIgnoreCase(info.name())) {
try {
Constructor<? extends TabCompleter> constr = obj.getDeclaredConstructor();
constr.setAccessible(true);
return constr.newInstance();
} catch (ReflectiveOperationException ignored) {
return new DefaultCommand();
Constructor<? extends TabCompleter> constr = ReflectionTools.getDeclaredConstructor(obj, SimplexModule.class);
if (constr == null) {
throw new CommandLoaderException("Constructor does not exist! Are you extending SimplexCommand properly?");
}
return ReflectionTools.initConstructor(constr, plugin);
}
}
}
return null;
throw new CommandLoaderException("Unable to assign a TabCompleter from the provided classes!");
}
/**
* Registry class, which forces all necessary fields to accessible.
*/
private static class Registry {
private static final Constructor<PluginCommand> constructor;
private static final Field cmdMapField;
private final class Registry {
private final Constructor<PluginCommand> constructor;
private final Field cmdMapField;
static {
public Registry() {
constructor = ReflectionTools.getDeclaredConstructor(PluginCommand.class, String.class, Plugin.class);
cmdMapField = ReflectionTools.getDeclaredField(SimplePluginManager.class, "commandMap");
}
public static PluginCommand create(@NotNull Plugin plugin, @NotNull String name) {
public PluginCommand create(@NotNull SimplexModule<?> plugin, @NotNull String name) {
return ReflectionTools.initConstructor(constructor, name, plugin);
}
public static void registerCommand(PluginCommand command) {
public void registerCommand(PluginCommand command) {
try {
CommandMap map = (CommandMap) cmdMapField.get(Bukkit.getPluginManager());
CommandMap map = (CommandMap) cmdMapField.get(plugin.getManager());
map.register(command.getName().toLowerCase(), command);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
throw new CommandLoaderException(e);
}
}
}

19
src/main/java/io/github/simplexdev/simplexcore/command/CommandLoaderException.java Normal file
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@ -0,0 +1,19 @@
package io.github.simplexdev.simplexcore.command;
import org.apache.commons.lang.exception.ExceptionUtils;
public class CommandLoaderException extends RuntimeException {
public CommandLoaderException() {
super("The Command Loader has encountered an exception and has failed to execute properly. " +
"Some commands may not be loaded.");
ExceptionUtils.getMessage(super.getCause());
}
public CommandLoaderException(String msg) {
super(msg);
}
public CommandLoaderException(Throwable th) {
super(th);
}
}

15
src/main/java/io/github/simplexdev/simplexcore/command/SimplexCommand.java
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@ -1,6 +1,7 @@
package io.github.simplexdev.simplexcore.command;
import io.github.simplexdev.simplexcore.SimplexCorePlugin;
import io.github.simplexdev.simplexcore.module.SimplexModule;
import io.github.simplexdev.simplexcore.utils.Utilities;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
@ -15,6 +16,15 @@ import java.util.List;
import java.util.UUID;
public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
private final SimplexModule<?> plugin;
public SimplexCommand(SimplexModule<?> plugin) {
this.plugin = plugin;
}
public final SimplexModule<?> getPlugin() {
return plugin;
}
public boolean isPlayer(CommandSender sender) {
return sender instanceof Player;
@ -22,6 +32,7 @@ public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
/**
* Gets an online player from their username
*
* @param name The player's username
* @return An instance of {@link Player} which represents the online player in question.
*/
@ -32,6 +43,7 @@ public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
/**
* Gets an online player from their {@link UUID}.
*
* @param uuid The player's UUID
* @return An instance of {@link Player} which represents the online player in question.
*/
@ -43,6 +55,7 @@ public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
/**
* Gets an instance of {@link Player} based off an instance of {@link CommandSender}.
* This will be null if the condition {CommandSender instanceof Player} is false.
*
* @param sender The CommandSender to cast
* @return An instance of Player relating to CommandSender.
*/
@ -54,6 +67,7 @@ public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
/**
* Send a message or a group of messages to a {@link Player}.
* If you want the messages to send on new lines, put \n at the end of each message to send.
*
* @param player The Player to send a message to
* @param messages The messages to send.
*/
@ -66,6 +80,7 @@ public abstract class SimplexCommand implements CommandExecutor, TabCompleter {
/**
* Send a message or a group of messages to a {@link CommandSender}
* If you want the messages to send on new lines, put \n at the end of each message to send.
*
* @param sender The CommandSender to send a message to.
* @param messages The messages to send.
*/

9
src/main/java/io/github/simplexdev/simplexcore/command/defaults/Command_info.java
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@ -1,16 +1,23 @@
package io.github.simplexdev.simplexcore.command.defaults;
import io.github.simplexdev.api.annotations.CommandInfo;
import io.github.simplexdev.simplexcore.chat.Messages;
import io.github.simplexdev.simplexcore.command.SimplexCommand;
import io.github.simplexdev.simplexcore.module.SimplexModule;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.jetbrains.annotations.NotNull;
@CommandInfo(name = "Info", description = "Gets info on this API / Library.", usage = "/<command>", permission = "simplex.core.info")
public class Command_info extends SimplexCommand {
public Command_info(SimplexModule<?> plugin) {
super(plugin);
}
@Override
public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
sender.sendMessage("This is an API!");
sender.sendMessage(Messages.DISCORD.getMessage());
return true;
}
}

5
src/main/java/io/github/simplexdev/simplexcore/command/defaults/DefaultCommand.java
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@ -2,12 +2,17 @@ package io.github.simplexdev.simplexcore.command.defaults;
import io.github.simplexdev.api.annotations.CommandInfo;
import io.github.simplexdev.simplexcore.command.SimplexCommand;
import io.github.simplexdev.simplexcore.module.SimplexModule;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.jetbrains.annotations.NotNull;
@CommandInfo(name = "default", usage = "/<command>", description = "Default plugin command.")
public final class DefaultCommand extends SimplexCommand {
public DefaultCommand(SimplexModule<?> plugin) {
super(plugin);
}
@Override
public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
sender.sendMessage("If you are seeing this when running your command, your command didn't register properly.");