ActorThread updates

wash/src/actor/ActorThread.java

@@ -2,7 +2,6 @@ package actor;
 
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
-import java.util.Optional;
 
 public abstract class ActorThread<M> extends Thread {
 
@@ -10,42 +9,29 @@ public abstract class ActorThread<M> extends Thread {
 
     /** Called by another thread, to send a message to this thread. */
     public void send(M message) {
-        System.out.println(" # Sending message: " + message);
+        String handlerName = this.getClass().getSimpleName();
         q.offer(message);
-        System.out.println(" % Queue State: " + q);
+        System.out.println(" # Message to " + handlerName + " : " + message);
     }
-    
+
     /** Returns the first message in the queue, or blocks if none available. */
     protected M receive() throws InterruptedException {
-        M mess =  q.take();
-        System.out.println(" - Message taken: " + mess);
+        M mess = q.take();
         return mess;
     }
 
-    /** Returns the first message in the queue, or blocks up to 'timeout'
-        milliseconds if none available. Returns null if no message is obtained
-        within 'timeout' milliseconds. */
+    /**
+     * Returns the first message in the queue, or blocks up to 'timeout'
+     * milliseconds if none available. Returns null if no message is obtained
+     * within 'timeout' milliseconds.
+     */
+    @Deprecated
     protected M receiveWithTimeout(long timeout) throws InterruptedException {
         return q.poll(timeout, TimeUnit.MILLISECONDS);
     }
 
-    protected Optional<M> poll(long timeOut) {
-        try {
-            Optional<M> m = Optional.ofNullable(q.poll(timeOut, TimeUnit.MILLISECONDS));
-            System.out.println("Stolen: " + m);
-            return m;
-        } catch (InterruptedException e) {
-            return Optional.empty();
-        } catch (Exception e) {
-            return Optional.empty(); // Or exit the program
-        }
-    }
-
-    protected void usleep(long time) {
-        try {
-            Thread.sleep(time);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
+    /** Wait for a message continuously */
+    protected M take() throws InterruptedException {
+        return q.take();
     }
 }