Waterdog support

1 files changed, 62 insertions, 0 deletions

diff --git a/spark-waterdog/src/main/java/me/lucko/spark/waterdog/WaterdogClassSourceLookup.java b/spark-waterdog/src/main/java/me/lucko/spark/waterdog/WaterdogClassSourceLookup.java
new file mode 100644
index 0000000..36e6a57
--- /dev/null
+++ b/spark-waterdog/src/main/java/me/lucko/spark/waterdog/WaterdogClassSourceLookup.java
@@ -0,0 +1,62 @@
+/*
+ * 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.waterdog;
+
+import me.lucko.spark.common.util.ClassSourceLookup;
+
+import dev.waterdog.waterdogpe.ProxyServer;
+import dev.waterdog.waterdogpe.plugin.Plugin;
+import dev.waterdog.waterdogpe.plugin.PluginClassLoader;
+
+import java.util.Map;
+import java.util.WeakHashMap;
+
+public class WaterdogClassSourceLookup extends ClassSourceLookup.ByClassLoader {
+    private final ProxyServer proxy;
+    private final Map<ClassLoader, String> cache;
+
+    public WaterdogClassSourceLookup(ProxyServer proxy) {
+        this.proxy = proxy;
+        this.cache = new WeakHashMap<>();
+    }
+
+    @Override
+    public String identify(ClassLoader loader) throws ReflectiveOperationException {
+        if (loader instanceof PluginClassLoader) {
+            String name = this.cache.get(loader);
+            if (name != null) {
+                return name;
+            }
+
+            for (Plugin plugin : this.proxy.getPluginManager().getPlugins()) {
+                if (plugin.getClass().getClassLoader() == loader) {
+                    name = plugin.getName();
+                    break;
+                }
+            }
+
+            this.cache.put(loader, name);
+            return name;
+        }
+        return null;
+    }
+}
+