reupload

src/main/java/com/loohp/limbo/events/EventsManager.java

@@ -0,0 +1,58 @@
+package com.loohp.limbo.events;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.loohp.limbo.plugins.LimboPlugin;
+
+public class EventsManager {
+	
+	private List<ListenerPair> listeners;
+	
+	public EventsManager() {
+		listeners = new ArrayList<>();
+	}
+	
+	public <T extends Event> T callEvent(T event) {
+		for (EventPriority priority : EventPriority.getPrioritiesInOrder()) {
+			for (ListenerPair entry : listeners) {
+				Listener listener = entry.listener;
+				for (Method method : listener.getClass().getMethods()) {
+					if (method.isAnnotationPresent(EventHandler.class)) {
+						if (method.getAnnotation(EventHandler.class).priority().equals(priority)) {
+							if (method.getParameterCount() == 1 && method.getParameterTypes()[0].equals(event.getClass())) {
+								try {
+									method.invoke(listener, event);
+								} catch (Exception e) {
+									System.err.println("Error while passing " + event.getClass().getCanonicalName() + " to the plugin \"" + entry.plugin.getName() + "\"");
+									e.printStackTrace();
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		return event;
+	}
+	
+	public void registerEvents(LimboPlugin plugin, Listener listener) {
+		listeners.add(new ListenerPair(plugin, listener));
+	}
+	
+	public void unregisterAllListeners(LimboPlugin plugin) {
+		listeners.removeIf(each -> each.plugin.equals(plugin));
+	}
+	
+	protected static class ListenerPair {
+		public LimboPlugin plugin;
+		public Listener listener;
+		
+		public ListenerPair(LimboPlugin plugin, Listener listener) {
+			this.plugin = plugin;
+			this.listener = listener;
+		}
+	}
+
+}