Fix bug of at times getting stuck at PAUSING state on reaching daily limit

src/main/java/altk/comm/engine/Broadcast.java

@@ -381,7 +381,8 @@ public abstract class Broadcast
                 }
                 finally
                 {
-                    updateServiceActivityCount(-batch.size());	                	
+                    updateServiceActivityCount(-batch.size());
+                    if (serviceActivityCount == 0) postback.wakeOneUp();
                 }
                 if (sleepBetweenJobs > 0)
                 {
@@ -1242,6 +1243,7 @@ public abstract class Broadcast
     	synchronized (readyQueue)
     	{
 	    	serviceActivityCount += increment;
+	    	myLogger.debug("serviceActivityCount = " + serviceActivityCount );
 	    	if (increment < 0 && serviceActivityCount <= 0)
 	    	{
 	    		if (state == BroadcastState.RUNNING
@@ -1249,9 +1251,6 @@ public abstract class Broadcast
 	    		   || state == BroadcastState.CANCELING
 	    		   ) 
     			{
-	    			// TODO: investigate possibility that 0 remainingJobCount may
-	    			// not be final.  It may still change because a finishing job 
-	    			// may cause a job to be scheduled.
 	    			if (getRemainingJobCount() == 0) {
 	    				setState(BroadcastState.COMPLETED);
 	    			}
@@ -1404,6 +1403,13 @@ public abstract class Broadcast
 		return broadcastType;
 	}
 
+	/**
+	 * To be invoked only when postQueue is empty.
+	 * Side effect: sets broadcast state from PAUSING to PAUSE 
+	 * when there are no active jobs being processed.
+	 * Similarly from CANCELING to CANCELED, from ABORTING to ABORTED, from COMPLETED to ALLDONE
+	 * @return
+	 */
 	public PostbackThreadActionOnEmpty getPostbackThreadActionOnEmpty() {
 		myLogger.debug("getPostbackThreadActionOnEmpty(): broadcast state " + state);
 		if (state.isFinal) return PostbackThreadActionOnEmpty.STOP;

src/main/java/altk/comm/engine/Postback.java

@@ -455,16 +455,21 @@ public class Postback
             {
                 sender.join();
             }
-            // Close postback connections.
 			httpclient.close();
 		} 
     	catch (Exception e) 
     	{
 			myLogger.error("Caught when closing HttpClient: " + e.getMessage());
 		}
-    	
-
         broadcast = null;
     }
+
+	public void wakeOneUp() 
+	{
+		synchronized (postQueue) 
+		{
+			postQueue.notify();
+		}
+	}
     
 }