[gatein-commits] gatein SVN: r4894 - portal/branches/branch-GTNPORTAL-1592/webui/framework/src/main/java/org/exoplatform/webui/config.

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Author: hoang_to
Date: 2010-11-01 21:28:58 -0400 (Mon, 01 Nov 2010)
New Revision: 4894

Modified:
   portal/branches/branch-GTNPORTAL-1592/webui/framework/src/main/java/org/exoplatform/webui/config/Component.java
Log:
GTNPORTAL-1541: Concurrency problem in Breadcumbs portlet

Modified: portal/branches/branch-GTNPORTAL-1592/webui/framework/src/main/java/org/exoplatform/webui/config/Component.java
===================================================================
--- portal/branches/branch-GTNPORTAL-1592/webui/framework/src/main/java/org/exoplatform/webui/config/Component.java	2010-11-01 21:25:30 UTC (rev 4893)
+++ portal/branches/branch-GTNPORTAL-1592/webui/framework/src/main/java/org/exoplatform/webui/config/Component.java	2010-11-02 01:28:58 UTC (rev 4894)
@@ -176,21 +176,33 @@
 
    public Event getUIComponentEventConfig(String eventName) throws Exception
    {
-      if (eventMap != null)
+      if(eventMap == null)
       {
-         return eventMap.get(eventName);
+         synchronized(this)
+         {
+            if(eventMap == null)
+            {
+               eventMap = new HashMap<String, Event>();
+
+               if (events == null)
+               {
+                  return null;
+               }
+
+               for (Event event : events)
+               {
+                  createCachedEventListeners(event);
+                  eventMap.put(event.getName(), event);
+               }
+            }
+            
+            return eventMap.get(eventName);
+         }
       }
-      eventMap = new HashMap<String, Event>();
-      if (events == null)
+      else
       {
-         return null;
+         return eventMap.get(eventName);
       }
-      for (Event event : events)
-      {
-         createCachedEventListeners(event);
-         eventMap.put(event.getName(), event);
-      }
-      return eventMap.get(eventName);
    }
 
    public List<EventListener> getUIComponentEventListeners(String eventName) throws Exception