feat[executor]:add method to get executor based on hash

event/src/main/java/com/zfoo/event/manager/EventBus.java

@@ -29,11 +29,13 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
+import java.util.function.Supplier;
 
 /**
  * @author godotg
@@ -151,6 +153,10 @@ public abstract class EventBus {
         receiverMap.computeIfAbsent(eventType, it -> new ArrayList<>(1)).add(receiver);
     }
 
+    public static ExecutorService getExecutor(int executorHash){
+        return executors[Math.abs(executorHash % EXECUTORS_SIZE)];
+    }
+
 }