Adds JMX monitoring for acquisition handler.

joram/joram/mom/core/src/main/java/org/objectweb/joram/mom/dest/AcquisitionModule.java

 /*
  * JORAM: Java(TM) Open Reliable Asynchronous Messaging
- * Copyright (C) 2010 - 2017 ScalAgent Distributed Technologies
+ * Copyright (C) 2010 - 2021 ScalAgent Distributed Technologies
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -48,7 +48,7 @@ import fr.dyade.aaa.common.Debug;
  */
 public class AcquisitionModule implements ReliableTransmitter {
   public static Logger logger = Debug.getLogger(AcquisitionModule.class.getName());
-
+   
   /** Verify that one and only one correct interface is implemented. */
   public static void checkAcquisitionClass(String className) throws Exception {
     if (className == null) {
@@ -70,11 +70,9 @@ public class AcquisitionModule implements ReliableTransmitter {
       clazz = clazz.getSuperclass();
     }
     if (isDaemon && isHandler) {
-      throw new Exception("Acquisition class " + className
-          + " can't implement both AcquisitionHandler and AcquisitionDaemon interfaces.");
+      throw new Exception("Acquisition class " + className + " can't implement both AcquisitionHandler and AcquisitionDaemon interfaces.");
     } else if (!isDaemon && !isHandler) {
-      throw new Exception("Acquisition class " + className
-          + " must implement either AcquisitionHandler or AcquisitionDaemon interface.");
+      throw new Exception("Acquisition class " + className + " must implement either AcquisitionHandler or AcquisitionDaemon interface.");
     }
   }
 
@@ -129,6 +127,10 @@ public class AcquisitionModule implements ReliableTransmitter {
   /** <code>true</code> if the acquisition daemon is running. */
   private boolean running;
 
+  public boolean isRunning() {
+    return running;
+  }
+  
   public AcquisitionModule(Destination destination, String className, Properties properties) {
     if (logger.isLoggable(BasicLevel.DEBUG)) {
       logger.log(BasicLevel.DEBUG, "AcquisitionModule.<init> prop = " + properties);

joram/joram/mom/core/src/main/java/org/objectweb/joram/mom/dest/AcquisitionQueue.java

 /*
  * JORAM: Java(TM) Open Reliable Asynchronous Messaging
- * Copyright (C) 2010 - 2015 ScalAgent Distributed Technologies
+ * Copyright (C) 2010 - 2021 ScalAgent Distributed Technologies
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -295,6 +295,19 @@ public class AcquisitionQueue extends Queue implements AcquisitionQueueMBean {
     return null;
   }
   
+  /**
+   * Returns the acquisition handler status.
+   * To be use by MBean interface.
+   * 
+   * @return the acquisition handler status.
+   */
+  @Override
+  public boolean isHandlerRunning() {
+    if (acquisitionModule == null)
+      return false;
+    return acquisitionModule.isRunning();
+  }
+  
   /**
    * Start the handler.
    * 

joram/joram/mom/core/src/main/java/org/objectweb/joram/mom/dest/AcquisitionQueueMBean.java

 /*
  * JORAM: Java(TM) Open Reliable Asynchronous Messaging
- * Copyright (C) 2010 - 2017 ScalAgent Distributed Technologies
+ * Copyright (C) 2010 - 2021 ScalAgent Distributed Technologies
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -72,10 +72,15 @@ public interface AcquisitionQueueMBean extends QueueMBean, AcquisitionMBean {
    * @return the minimum threshold of waiting messages in the destination.
    */
   long getPendingMin();
-  
 
   public String dumpProperties();
   
+  /**
+   * Returns the acquisition handler status.
+   * @return the acquisition handler status.
+   */
+  public boolean isHandlerRunning();
+  
   /**
    * Starts the handler.
    */