Refactored Plugin into an interface, make Javaplugin and relevant code to attempt to actually load plugins

By: Dinnerbone <dinnerbone@dinnerbone.com>

paper-api/src/org/bukkit/plugin/Plugin.java

@@ -4,63 +4,49 @@ package org.bukkit.plugin;
 import org.bukkit.Server;
 
 /**
- * Represents a plugin
+ * Represents a Plugin
  */
-public abstract class Plugin {
-    private boolean isEnabled = false;
-    private final PluginLoader loader;
-    private final Server server;
-
+public interface Plugin {
     /**
-     * Constructs a new plugin instance
+     * Returns the plugin.yaml file containing the details for this plugin
      *
-     * @param pluginLoader PluginLoader that is responsible for this plugin
-     * @param instance Server instance that is running this plugin
+     * @return Contents of the plugin.yaml file
      */
-    protected Plugin(PluginLoader pluginLoader, Server instance) {
-        loader = pluginLoader;
-        server = instance;
-    }
+    public PluginDescriptionFile getDescription();
 
     /**
      * Gets the associated PluginLoader responsible for this plugin
      *
      * @return PluginLoader that controls this plugin
      */
-    protected final PluginLoader getPluginLoader() {
-        return loader;
-    }
+    public PluginLoader getPluginLoader();
 
     /**
      * Returns the Server instance currently running this plugin
      *
      * @return Server running this plugin
      */
-    public final Server getServer() {
-        return server;
-    }
+    public Server getServer();
 
     /**
      * Returns a value indicating whether or not this plugin is currently enabled
-     * 
+     *
      * @return true if this plugin is enabled, otherwise false
      */
-    public final boolean isEnabled() {
-        return isEnabled;
-    }
-
-    /**
-     * Called when this plugin is enabled
-     */
-    protected abstract void onEnable();
+    public boolean isEnabled();
 
     /**
      * Called when this plugin is disabled
      */
-    protected abstract void onDisable();
+    public void onDisable();
+
+    /**
+     * Called when this plugin is enabled
+     */
+    public void onEnable();
 
     /**
      * Called when this plugin is first initialized
      */
-    protected abstract void onInitialize();
+    public void onInitialize();
 }