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/*
* This file is part of spark.
*
* Copyright (c) lucko (Luck) <luck@lucko.me>
* Copyright (c) contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package me.lucko.spark.bukkit;
import me.lucko.spark.common.sampler.source.ClassSourceLookup;
import org.bukkit.plugin.java.JavaPlugin;
import java.lang.reflect.Field;
public class BukkitClassSourceLookup extends ClassSourceLookup.ByClassLoader {
private static final Class<?> PLUGIN_CLASS_LOADER;
private static final Field PLUGIN_FIELD;
private static final Class<?> PAPER_PLUGIN_CLASS_LOADER;
private static final Field PAPER_PLUGIN_FIELD;
static {
try {
PLUGIN_CLASS_LOADER = Class.forName("org.bukkit.plugin.java.PluginClassLoader");
PLUGIN_FIELD = PLUGIN_CLASS_LOADER.getDeclaredField("plugin");
PLUGIN_FIELD.setAccessible(true);
PAPER_PLUGIN_CLASS_LOADER = getPaperPluginClassLoader();
if (PAPER_PLUGIN_CLASS_LOADER != null) {
PAPER_PLUGIN_FIELD = PAPER_PLUGIN_CLASS_LOADER.getDeclaredField("loadedJavaPlugin");
PAPER_PLUGIN_FIELD.setAccessible(true);
} else {
PAPER_PLUGIN_FIELD = null;
}
} catch (ReflectiveOperationException e) {
throw new ExceptionInInitializerError(e);
}
}
@Override
public String identify(ClassLoader loader) throws ReflectiveOperationException {
if (PLUGIN_CLASS_LOADER.isInstance(loader)) {
JavaPlugin plugin = (JavaPlugin) PLUGIN_FIELD.get(loader);
return plugin.getName();
} else if (PAPER_PLUGIN_CLASS_LOADER != null && PAPER_PLUGIN_CLASS_LOADER.isInstance(loader)) {
JavaPlugin plugin = (JavaPlugin) PAPER_PLUGIN_FIELD.get(loader);
return plugin.getName();
}
return null;
}
private static Class<?> getPaperPluginClassLoader() {
try {
return Class.forName("io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader");
} catch (ClassNotFoundException e) {
return null;
}
}
}
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