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Fix Plugin class loader getter 

Older Minecraft versions have different PluginClassLoader storing
methods

Also add method to get NMS version
This commit is contained in:
Mark Vainomaa 2016-12-18 00:53:07 +02:00
parent fc892a6384
commit b257272630
1 changed files with 31 additions and 6 deletions
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37
BukkitUtils/src/main/java/eu/mikroskeem/utils/bukkit/ServerUtils.java
View File

@ -8,7 +8,9 @@ import org.bukkit.plugin.java.PluginClassLoader;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class ServerUtils {
/**
@ -21,11 +23,8 @@ public class ServerUtils {
if(Bukkit.getVersion().contains("Paper")) {
return Bukkit.getTPS();
} else {
String bukkitPackageName = Bukkit.getServer().getClass().getPackage().getName();
String nmsVer = bukkitPackageName.substring(bukkitPackageName.lastIndexOf(".") + 1);
Class<?> MinecraftServerClass = Reflect.getClass(
String.format("net.minecraft.server.%s.MinecraftServer", nmsVer));
String.format("net.minecraft.server.%s.MinecraftServer", getNmsVersion()));
if(MinecraftServerClass != null){
Method getServer = Reflect.getMethod(MinecraftServerClass, "getServer");
Field recentTPS = Reflect.getField(MinecraftServerClass, "recentTps");
@ -46,12 +45,25 @@ public class ServerUtils {
* @param plugin Plugin which will be used to get plugin ClassLoader
* @return Plugin ClassLoader
*/
@SuppressWarnings("unchecked")
public static ClassLoader getPluginClassLoader(JavaPlugin plugin){
JavaPluginLoader pl = (JavaPluginLoader)plugin.getPluginLoader();
Field loadersField = Reflect.getField(pl.getClass(), "loaders");
if(loadersField != null) {
@SuppressWarnings("unchecked")
List<PluginClassLoader> loaders = (List<PluginClassLoader>) Reflect.readField(loadersField, pl);
List<PluginClassLoader> loaders = null;
switch (getNmsVersion()){
case "v1_8_R3":
case "v1_9_R1": // TODO: Check?
case "v1_9_R2":
loaders = new ArrayList<>(((Map<String, PluginClassLoader>)
Reflect.readField(loadersField, pl)).values());
break;
case "v1_10_R1":
case "v1_11_R1":
loaders = (List<PluginClassLoader>) Reflect.readField(loadersField, pl);
break;
}
if(loaders != null) {
for(PluginClassLoader loader : loaders) {
if(loader.getPlugin().getName().equals(plugin.getName())){
@ -62,4 +74,17 @@ public class ServerUtils {
}
return null;
}
/**
* Get NMS version of current running server
* @return NMS version or 0 length string
*/
public static String getNmsVersion(){
try {
String bukkitPackageName = Bukkit.getServer().getClass().getPackage().getName();
return bukkitPackageName.substring(bukkitPackageName.lastIndexOf(".") + 1);
} catch (NullPointerException e){
return "";
}
}
}