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Merge pull request #628 from exzork/development

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PluginManager: Use the same class loader and add getPlugin method
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Magix 2022-05-07 17:58:42 -04:00 committed by GitHub
commit d70df776b1
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1 changed files with 21 additions and 6 deletions
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27
src/main/java/emu/grasscutter/plugin/PluginManager.java
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@ -4,12 +4,12 @@ import emu.grasscutter.Grasscutter;
import emu.grasscutter.server.event.Event;
import emu.grasscutter.server.event.EventHandler;
import emu.grasscutter.server.event.HandlerPriority;
import emu.grasscutter.utils.EventConsumer;
import emu.grasscutter.utils.Utils;
import java.io.File;
import java.io.InputStreamReader;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.*;
@ -47,12 +47,23 @@ public final class PluginManager {
List<File> plugins = Arrays.stream(files)
.filter(file -> file.getName().endsWith(".jar"))
.toList();
URL[] pluginNames = new URL[plugins.size()];
plugins.forEach(plugin -> {
try {
pluginNames[plugins.indexOf(plugin)] = plugin.toURI().toURL();
} catch (MalformedURLException exception) {
Grasscutter.getLogger().warn("Unable to load plugin.", exception);
}
});
URLClassLoader classLoader = new URLClassLoader(pluginNames);
plugins.forEach(plugin -> {
try {
URL url = plugin.toURI().toURL();
try (URLClassLoader loader = new URLClassLoader(new URL[]{url})) {
URL configFile = loader.findResource("plugin.json");
URL configFile = loader.findResource("plugin.json"); // Find the plugin.json file for each plugin.
InputStreamReader fileReader = new InputStreamReader(configFile.openStream());
PluginConfig pluginConfig = Grasscutter.getGsonFactory().fromJson(fileReader, PluginConfig.class);
@ -68,10 +79,10 @@ public final class PluginManager {
JarEntry entry = entries.nextElement();
if(entry.isDirectory() || !entry.getName().endsWith(".class") || entry.getName().contains("module-info")) continue;
String className = entry.getName().replace(".class", "").replace("/", ".");
loader.loadClass(className);
classLoader.loadClass(className); // Use the same class loader for ALL plugins.
}
Class<?> pluginClass = loader.loadClass(pluginConfig.mainClass);
Class<?> pluginClass = classLoader.loadClass(pluginConfig.mainClass);
Plugin pluginInstance = (Plugin) pluginClass.getDeclaredConstructor().newInstance();
this.loadPlugin(pluginInstance, PluginIdentifier.fromPluginConfig(pluginConfig), loader);
@ -156,6 +167,10 @@ public final class PluginManager {
.toList().forEach(handler -> this.invokeHandler(event, handler));
}
public Plugin getPlugin(String name) {
return this.plugins.get(name);
}
/**
* Performs logic checks then invokes the provided event handler.
* @param event The event passed through to the handler.
@ -167,4 +182,4 @@ public final class PluginManager {
(event.isCanceled() && handler.ignoresCanceled())
) handler.getCallback().consume((T) event);
}
}
}