Added debugging information while registering/unregistering components.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@6789 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/component/InternalComponentManager.java

@@ -101,9 +101,10 @@ public class InternalComponentManager extends BasicModule implements ComponentMa
         // Check that the requested subdoman is not taken by another component
         Component existingComponent = components.get(subdomain);
         if (existingComponent != null && existingComponent != component) {
-            throw new ComponentException(
-                    "Domain already taken by another component: " + existingComponent);
+            throw new ComponentException("Domain (" + subdomain +
+                    ") already taken by another component: " + existingComponent);
         }
+        Log.debug("Registering component for domain: " + subdomain);
         // Register that the domain is now taken by the component
         components.put(subdomain, component);
 
@@ -128,6 +129,7 @@ public class InternalComponentManager extends BasicModule implements ComponentMa
             // Send a disco#info request to the new component. If the component provides information
             // then it will be added to the list of discoverable server items.
             checkDiscoSupport(component, componentJID);
+            Log.debug("Component registered for domain: " + subdomain);
         }
         catch (Exception e) {
             // Unregister the componet's domain
@@ -145,6 +147,7 @@ public class InternalComponentManager extends BasicModule implements ComponentMa
     }
 
     public void removeComponent(String subdomain) {
+        Log.debug("Unregistering component for domain: " + subdomain);
         Component component = components.remove(subdomain);
         // Remove any info stored with the component being removed
         componentInfo.remove(subdomain);
@@ -170,6 +173,7 @@ public class InternalComponentManager extends BasicModule implements ComponentMa
         for (ComponentEventListener listener : listeners) {
             listener.componentUnregistered(component, componentJID);
         }
+        Log.debug("Component unregistered for domain: " + subdomain);
     }
 
     public void sendPacket(Component component, Packet packet) {