QPID-1790: add new attribute to logging management mbean to indicate available output levels. Update jmx management console to understand String[] attribute value and display contents properly

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@762365 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 16 insertions, 2 deletions

diff --git a/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagement.java b/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagement.java
index 79d60a6df0..f723ab206c 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagement.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagement.java
@@ -47,6 +47,13 @@ public interface LoggingManagement
                     description = "The log4j xml configuration file LogWatch interval (in seconds). 0 indicates not being checked.")
     Integer getLog4jLogWatchInterval();
     
+    /**
+     * Attribute to represent the available log4j logger output levels.
+     * @return The logging level names.
+     */
+    @MBeanAttribute(name="AvailableLoggerLevels", description = "The values to which log output level can be set.")
+    String[] getAvailableLoggerLevels();
+    
     
     //****** log4j runtime operations ****** //
 
diff --git a/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagementMBean.java b/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagementMBean.java
index f84cbbd786..cd3f85f8ca 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagementMBean.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/logging/management/LoggingManagementMBean.java
@@ -69,7 +69,10 @@ public class LoggingManagementMBean extends AMQManagedObject implements LoggingM
     private static final Logger _logger = Logger.getLogger(LoggingManagementMBean.class);
     private String _log4jConfigFileName;
     private int _log4jLogWatchInterval;
-    
+    private static final String[] LEVELS = new String[]{Level.ALL.toString(), Level.TRACE.toString(), 
+                                                        Level.DEBUG.toString(), Level.INFO.toString(), 
+                                                        Level.WARN.toString(), Level.ERROR.toString(), 
+                                                        Level.FATAL.toString(),Level.OFF.toString()};   
     static TabularType _loggerLevelTabularType;
     static CompositeType _loggerLevelCompositeType;
 
@@ -108,7 +111,11 @@ public class LoggingManagementMBean extends AMQManagedObject implements LoggingM
     {
         return _log4jLogWatchInterval;
     }
-
+    
+    public String[] getAvailableLoggerLevels()
+    {
+        return LEVELS;
+    }
     @SuppressWarnings("unchecked")
     public synchronized boolean setRuntimeLoggerLevel(String logger, String level)
     {