[jboss-cvs] JBossAS SVN: r64871 - branches/JBoss_4_0_5_GA_CP/jmx/src/main/org/jboss/mx/loading.
jboss-cvs-commits at lists.jboss.org
jboss-cvs-commits at lists.jboss.org
Fri Aug 24 23:53:52 EDT 2007
Author: scott.stark at jboss.org
Date: 2007-08-24 23:53:52 -0400 (Fri, 24 Aug 2007)
New Revision: 64871
Modified:
branches/JBoss_4_0_5_GA_CP/jmx/src/main/org/jboss/mx/loading/UnifiedLoaderRepository3.java
Log:
ASPATCH-288, add property to control whether class loader addition/removal emits a notification
Modified: branches/JBoss_4_0_5_GA_CP/jmx/src/main/org/jboss/mx/loading/UnifiedLoaderRepository3.java
===================================================================
--- branches/JBoss_4_0_5_GA_CP/jmx/src/main/org/jboss/mx/loading/UnifiedLoaderRepository3.java 2007-08-24 23:09:01 UTC (rev 64870)
+++ branches/JBoss_4_0_5_GA_CP/jmx/src/main/org/jboss/mx/loading/UnifiedLoaderRepository3.java 2007-08-25 03:53:52 UTC (rev 64871)
@@ -21,6 +21,7 @@
*/
package org.jboss.mx.loading;
+import java.lang.ref.WeakReference;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
@@ -72,6 +73,14 @@
/** Used to provide a relative ordering of UCLs based on the order in
* which they are added to the repository */
private static int addedCount;
+ /** The jmx notification behavior mode. This is set by the
+ * org.jboss.mx.loading.UnifiedLoaderRepository.notifyMode system
+ * property.
+ */
+ private static int LEGACY_MODE = 0;
+ private static int WEAK_REFERENCE_MODE = 1;
+ private static int NO_NOTIFICATION_MODE = 2;
+ private static int NOTIFICATION_MODE = LEGACY_MODE;
// Attributes ----------------------------------------------------
@@ -148,6 +157,12 @@
*/
private MBeanNotificationInfo[] info;
+ static
+ {
+ // JBAS-4593
+ String value = ClassToStringAction.getProperty("org.jboss.mx.loading.UnifiedLoaderRepository.notifyMode", "0");
+ NOTIFICATION_MODE = Integer.valueOf(value).intValue();
+ }
// Public --------------------------------------------------------
@@ -927,9 +942,15 @@
broadcaster.sendNotification(msg);
}
- Notification msg = new Notification(CLASSLOADER_REMOVED, this, getNextSequenceNumber());
- msg.setUserData(cl);
- broadcaster.sendNotification(msg);
+ if (NOTIFICATION_MODE == LEGACY_MODE || NOTIFICATION_MODE == WEAK_REFERENCE_MODE)
+ {
+ Notification msg = new Notification(CLASSLOADER_REMOVED, this, getNextSequenceNumber());
+ if (NOTIFICATION_MODE == WEAK_REFERENCE_MODE)
+ msg.setUserData(new WeakReference(cl));
+ else
+ msg.setUserData(cl);
+ broadcaster.sendNotification(msg);
+ }
}
/**
@@ -944,9 +965,15 @@
public LoaderRepository registerClassLoader(RepositoryClassLoader ucl)
{
addClassLoader(ucl);
- Notification msg = new Notification(CLASSLOADER_ADDED, this, getNextSequenceNumber());
- msg.setUserData(ucl);
- broadcaster.sendNotification(msg);
+ if (NOTIFICATION_MODE == LEGACY_MODE || NOTIFICATION_MODE == WEAK_REFERENCE_MODE)
+ {
+ Notification msg = new Notification(CLASSLOADER_ADDED, this, getNextSequenceNumber());
+ if (NOTIFICATION_MODE == WEAK_REFERENCE_MODE)
+ msg.setUserData(new WeakReference(ucl));
+ else
+ msg.setUserData(ucl);
+ broadcaster.sendNotification(msg);
+ }
return this;
}
@@ -983,15 +1010,22 @@
{
if (info == null)
{
- info = new MBeanNotificationInfo[]{
- new MBeanNotificationInfo(new String[]{"CLASSLOADER_ADDED"},
- "javax.management.Notification",
- "Notification that a classloader has been added to the extensible classloader"),
- new MBeanNotificationInfo(new String[]{"CLASS_REMOVED"},
- "javax.management.Notification",
- "Notification that a class has been removed from the extensible classloader")
-
- };
+ if (NOTIFICATION_MODE != NO_NOTIFICATION_MODE)
+ {
+ info = new MBeanNotificationInfo[]{
+ new MBeanNotificationInfo(new String[]{"CLASSLOADER_ADDED"},
+ "javax.management.Notification",
+ "Notification that a classloader has been added to the extensible classloader"),
+ new MBeanNotificationInfo(new String[]{"CLASS_REMOVED"},
+ "javax.management.Notification",
+ "Notification that a class has been removed from the extensible classloader")
+
+ };
+ }
+ else
+ {
+ info = new MBeanNotificationInfo[0];
+ }
}
return info;
}
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