| Methods Summary |
|---|
| public void | configure()Configure will be called only once to read the domain.xml entries
and configure the Notification Listener and Filter. It will also
create a list of AlertSubscription objects and creates
MBeanServerRegistrationEventListener to listen to RegisterMBean events
and add the Notification Listener if required.
Logger logger = LogDomains.getAlertLogger( );
if( logger.isLoggable( Level.FINE ) ) {
logger.log( Level.FINE, "AlertConfigurator.configure called.." );
}
AlertService alertService = getAlertService( );
if( alertService != null ) {
int count = alertService.sizeAlertSubscription( );
if( count == 0 ) return;
List alertSubscriptionList = new ArrayList( );
for( int i = 0; i < count; i++ ) {
AlertSubscription subscription =
alertService.getAlertSubscription( i );
NotificationListener listener = configureNotificationListener(
subscription.getListenerConfig( ) );
NotificationFilter filter = configureNotificationFilter(
subscription.getFilterConfig( ) );
alertSubscriptionList.add( new AlertSubscriptionInfo(
subscription.getListenerConfig().getSubscribeListenerWith( ),
listener, filter ));
String monitorNames = subscription.getListenerConfig(
).getSubscribeListenerWith( );
if( logger.isLoggable( Level.FINE ) ) {
logger.log( Level.FINE,
"AlertConfigurator.configure monitorNames.." +
monitorNames );
}
StringTokenizer tokenizer = new StringTokenizer( monitorNames,
"," );
// If we are interested in listening to LogMBean event
// event as well. Subscribe it with an explicit call
// as LogMBean would've been registered already by now and
// will never recieve the LogMBean registered notification.
while( tokenizer.hasMoreTokens( ) ) {
String token = tokenizer.nextToken().trim();
if( token.equals( LOG_MBEAN_NAME ) ) {
LogMBean.getInstance( ).addNotificationListener(
listener, filter, null );
}
}
}
// Now, we have read all the domain.xml alert subscriptions.
// We can register a Notification Listener to listen to
// MBean registered event and then we can introspect the name
// to see if it matches to add the Listeners capable of
// emitting alerts.
MBeanRegistrationEventListener registrationListener =
new MBeanRegistrationEventListener( alertSubscriptionList );
readyForMBeanRegistrationEvent( registrationListener );
}
|
| private javax.management.NotificationFilter | configureNotificationFilter(com.sun.enterprise.config.serverbeans.FilterConfig filterConfig)Initializes the NotificationFilter based on FilterConfig in domain.xml .
String filterClassName = DEFAULT_FILTER_CLASS_NAME;
ElementProperty[] properties = null;
if( filterConfig != null ) {
filterClassName = filterConfig.getFilterClassName();
properties = filterConfig.getElementProperty();
}
NotificationFilter filter = null;
try {
filter = (NotificationFilter) instantiateAndConfigure(
filterClassName, properties );
} catch( Exception e ) {
new ErrorManager().error(
"Error In Notification Filter Config ", e,
ErrorManager.GENERIC_FAILURE );
}
return filter;
|
| private javax.management.NotificationListener | configureNotificationListener(com.sun.enterprise.config.serverbeans.ListenerConfig listenerConfig)Initializes the NotificationListener based on ListenerConfig in
domain.xml .
Logger alertLogger = LogDomains.getAlertLogger( );
if( alertLogger.isLoggable( Level.FINE ) ) {
alertLogger.log( Level.FINE,
"ConfigureNotificationListener called with className ..." +
listenerConfig.getListenerClassName( ) );
}
NotificationListener listener = null;
try {
listener = (NotificationListener) instantiateAndConfigure(
listenerConfig.getListenerClassName( ),
listenerConfig.getElementProperty( ) );
} catch( Exception e ) {
new ErrorManager().error(
"Error In Notification Listener Config ", e,
ErrorManager.GENERIC_FAILURE );
}
return listener;
|
| public static com.sun.enterprise.admin.alert.AlertConfigurator | getAlertConfigurator()A Singleton Accessor method.
return instance;
|
| private com.sun.enterprise.config.serverbeans.AlertService | getAlertService()Get AlertService config from domain.xml
try {
ServerContext sc = ApplicationServer.getServerContext();
if( sc == null ) {
return null;
}
return ServerBeansFactory.getConfigBean(
sc.getConfigContext()).getAlertService( );
} catch( Exception e ) {
new ErrorManager().error( "Error In getAlertService ", e,
ErrorManager.GENERIC_FAILURE );
}
return null;
|
| private final java.lang.reflect.Method[] | getDeclaredMethods(java.lang.Class clz)Utility method to get the declared fields.
return (Method[]) AccessController.doPrivileged(new PrivilegedAction() { public Object run() {
return clz.getDeclaredMethods();
}
});
|
| private java.lang.Object | getInstance(java.lang.String className)A Utility method to get an instance of the class.
_REVISIT_: Check to see if there is a utility method to do this.
If yes, this method can be taken out.
if( className == null ) return null;
return AccessController.doPrivileged( new PrivilegedAction() {
public Object run() {
try {
ClassLoader cl =
Thread.currentThread().getContextClassLoader();
if (cl == null)
cl = ClassLoader.getSystemClassLoader();
return Class.forName( className, true, cl).newInstance(); } catch( Exception e ) {
new ErrorManager().error(
"Error In Instantiating Class " + className, e,
ErrorManager.GENERIC_FAILURE );
}
return null;
}
}
);
|
| private java.lang.Object | instantiateAndConfigure(java.lang.String className, com.sun.enterprise.config.serverbeans.ElementProperty[] properties)A Utility method to instantiate a class and set the properties.
Logger alertLogger = LogDomains.getAlertLogger();
if( alertLogger.isLoggable( Level.FINE ) ) {
alertLogger.log( Level.FINE,
"instantiateAndConfigure called with className.." +
className );
}
Object o = getInstance( className );
if( ( o != null )
&&( properties != null ) )
{
if( alertLogger.isLoggable( Level.FINE ) ) {
alertLogger.log( Level.FINE,
"instantiateAndConfigure setting Properties.." );
}
setProperties( o, properties );
}
return o;
|
| private void | readyForMBeanRegistrationEvent(javax.management.NotificationListener registrationListener)Registers the MBeanRegistrationEventListener with MBean Server Delegate.
try {
MBeanServer mbeanServer =
AdminService.getAdminService().getAdminContext(
).getMBeanServer();
mbeanServer.addNotificationListener(
new ObjectName( MBEAN_SERVER_DELEGATE_OBJECT_NAME ),
registrationListener, (NotificationFilter) null,(Object) null );
} catch( Exception e ) {
new ErrorManager().error(
"Error In registerning MBeanServerNotificationListener ", e,
ErrorManager.GENERIC_FAILURE );
}
|
| private void | setProperties(java.lang.Object o, com.sun.enterprise.config.serverbeans.ElementProperty[] properties)Utility method to set properties to the instantiated Object.
if( properties == null ) return;
Method[] methods = null;
try {
methods = getDeclaredMethods( o.getClass( ) );
for( int i = 0; i < properties.length; i++ ) {
ElementProperty property = properties[i];
String propertyName = property.getName( ).toLowerCase( );
String propertyValue = property.getValue( );
for( int j = 0; j < methods.length; j++ ) {
String methodName = methods[j].getName().toLowerCase();
if ( ( methodName.startsWith( "set" ) )
&& ( methodName.endsWith( propertyName ) ) )
{
Class[] parameterTypes = methods[j].getParameterTypes( );
if( parameterTypes.length != 1 ) {
new ErrorManager().error(
"Only one Parameter is allowed for the setter " +
" Method: " + methodName +
" has invalid signature", new Exception(),
ErrorManager.GENERIC_FAILURE );
}
String parameterType = parameterTypes[0].getName();
Object[] parameters = new Object[1];
if( parameterType.equals( "java.lang.String") ) {
parameters[0] = propertyValue;
} else if( parameterType.equals( "byte" ) ) {
parameters[0] =
new Byte( propertyValue.getBytes()[0]);
} else if( parameterType.equals( "int" ) ) {
parameters[0] = new Integer(propertyValue);
} else if( parameterType.equals( "float" ) ) {
parameters[0] = new Float(propertyValue);
} else if( parameterType.equals( "double") ) {
parameters[0] = new Double(propertyValue);
} else if( parameterType.equals( "char" ) ) {
parameters[0] =
new Character(propertyValue.charAt(0));
} else if( parameterType.equals("boolean") ) {
parameters[0] = new Boolean(propertyValue);
} else if( parameterType.equals("long") ) {
parameters[0] = new Long(propertyValue);
} else if( parameterType.equals("short") ) {
parameters[0] = new Short(propertyValue);
} else {
new ErrorManager().error(
"Only the basic primitive types can be set " +
"as properties to NotificationListener and " +
" NotificationFilter ", new Exception(),
ErrorManager.GENERIC_FAILURE );
continue;
}
methods[j].invoke( o, parameters );
}
}
}
} catch( Exception e ) {
new ErrorManager().error(
"Error While Setting properties to Notification Listener or " +
" Filter ", e, ErrorManager.GENERIC_FAILURE );
}
|
