Система событий

libLauncher/src/main/java/ru/gravit/utils/event/EventHandler.java

@@ -0,0 +1,6 @@
+package ru.gravit.utils.event;
+
+@FunctionalInterface
+public interface EventHandler {
+    void run(EventInterface event);
+}

libLauncher/src/main/java/ru/gravit/utils/event/EventInterface.java

@@ -0,0 +1,7 @@
+package ru.gravit.utils.event;
+
+import java.util.UUID;
+
+public interface EventInterface {
+    UUID getUUID();
+}

libLauncher/src/main/java/ru/gravit/utils/event/EventManager.java

@@ -0,0 +1,70 @@
+package ru.gravit.utils.event;
+
+import ru.gravit.utils.helper.LogHelper;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.UUID;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+
+public class EventManager {
+    public static final int QUEUE_MAX_SIZE = 2048;
+    public static final int INITIAL_HANDLERS_SIZE = 16;
+    public class Entry
+    {
+        public Entry(EventHandler func, UUID[] events) {
+            this.func = func;
+            this.events = events;
+        }
+
+        EventHandler func;
+        UUID[] events;
+    }
+    public class QueueEntry
+    {
+        public QueueEntry(EventInterface event, UUID key) {
+            this.event = event;
+            this.key = key;
+        }
+
+        EventInterface event;
+        UUID key;
+    }
+    public ArrayList<Entry> handlers = new ArrayList<>(INITIAL_HANDLERS_SIZE);
+    public BlockingQueue<QueueEntry> queue = new LinkedBlockingQueue<>(QUEUE_MAX_SIZE); //Максимальный размер очереди
+    public int registerHandler(EventHandler func, UUID[] events)
+    {
+        Arrays.sort(events);
+        handlers.add(new Entry(func,events));
+        return handlers.size();
+    }
+    public void sendEvent(UUID key, EventInterface event, boolean blocking)
+    {
+        if(blocking) process(key,event);
+        else queue.add(new QueueEntry(event,key));
+    }
+    public void process(UUID key, EventInterface event)
+    {
+        for(Entry e : handlers)
+        {
+            if(Arrays.binarySearch(e.events,key) >= 0) e.func.run(event);
+        }
+    }
+    public class EventExecutor implements Runnable {
+        public boolean enable = true;
+        @Override
+        public void run() {
+            while(enable && !Thread.interrupted())
+            {
+                try {
+                    QueueEntry e = queue.take();
+                    process(e.key,e.event);
+                } catch (InterruptedException e) {
+                    LogHelper.error(e);
+                }
+                Thread.yield();
+            }
+        }
+    }
+}