/*
* @(#)MonitorNotification.java 4.22 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.management.monitor;
// jmx imports
//
import javax.management.ObjectName;
/**
* Provides definitions of the notifications sent by monitor MBeans.
* <P>
* The notification source and a set of parameters concerning the monitor MBean's state
* need to be specified when creating a new object of this class.
*
* The list of notifications fired by the monitor MBeans is the following:
*
* <UL>
* <LI>Common to all kind of monitors:
* <UL>
* <LI>The observed object is not registered in the MBean server.
* <LI>The observed attribute is not contained in the observed object.
* <LI>The type of the observed attribute is not correct.
* <LI>Any exception (except the cases described above) occurs when trying to get the value of the observed attribute.
* </UL>
* <LI>Common to the counter and the gauge monitors:
* <UL>
* <LI>The threshold high or threshold low are not of the same type as the gauge (gauge monitors).
* <LI>The threshold or the offset or the modulus are not of the same type as the counter (counter monitors).
* </UL>
* <LI>Counter monitors only:
* <UL>
* <LI>The observed attribute has reached the threshold value.
* </UL>
* <LI>Gauge monitors only:
* <UL>
* <LI>The observed attribute has exceeded the threshold high value.
* <LI>The observed attribute has exceeded the threshold low value.
* </UL>
* <LI>String monitors only:
* <UL>
* <LI>The observed attribute has matched the "string to compare" value.
* <LI>The observed attribute has differed from the "string to compare" value.
* </UL>
* </UL>
*
* @version 4.22 12/19/03
* @author Sun Microsystems, Inc
*
* @since 1.5
*/
public class MonitorNotification extends javax.management.Notification {
/*
* ------------------------------------------
* PUBLIC VARIABLES
* ------------------------------------------
*/
/**
* Notification type denoting that the observed object is not registered in the MBean server.
* This notification is fired by all kinds of monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.error.mbean</CODE>.
*/
public static final String OBSERVED_OBJECT_ERROR = "jmx.monitor.error.mbean";
/**
* Notification type denoting that the observed attribute is not contained in the observed object.
* This notification is fired by all kinds of monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.error.attribute</CODE>.
*/
public static final String OBSERVED_ATTRIBUTE_ERROR = "jmx.monitor.error.attribute";
/**
* Notification type denoting that the type of the observed attribute is not correct.
* This notification is fired by all kinds of monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.error.type</CODE>.
*/
public static final String OBSERVED_ATTRIBUTE_TYPE_ERROR = "jmx.monitor.error.type";
/**
* Notification type denoting that the type of the thresholds, offset or modulus is not correct.
* This notification is fired by counter and gauge monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.error.threshold</CODE>.
*/
public static final String THRESHOLD_ERROR = "jmx.monitor.error.threshold";
/**
* Notification type denoting that a non-predefined error type has occurred when trying to get the value of the observed attribute.
* This notification is fired by all kinds of monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.error.runtime</CODE>.
*/
public static final String RUNTIME_ERROR = "jmx.monitor.error.runtime";
/**
* Notification type denoting that the observed attribute has reached the threshold value.
* This notification is only fired by counter monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.counter.threshold</CODE>.
*/
public static final String THRESHOLD_VALUE_EXCEEDED = "jmx.monitor.counter.threshold";
/**
* Notification type denoting that the observed attribute has exceeded the threshold high value.
* This notification is only fired by gauge monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.gauge.high</CODE>.
*/
public static final String THRESHOLD_HIGH_VALUE_EXCEEDED = "jmx.monitor.gauge.high";
/**
* Notification type denoting that the observed attribute has exceeded the threshold low value.
* This notification is only fired by gauge monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.gauge.low</CODE>.
*/
public static final String THRESHOLD_LOW_VALUE_EXCEEDED = "jmx.monitor.gauge.low";
/**
* Notification type denoting that the observed attribute has matched the "string to compare" value.
* This notification is only fired by string monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.string.matches</CODE>.
*/
public static final String STRING_TO_COMPARE_VALUE_MATCHED = "jmx.monitor.string.matches";
/**
* Notification type denoting that the observed attribute has differed from the "string to compare" value.
* This notification is only fired by string monitors.
* <BR>The value of this notification type is <CODE>jmx.monitor.string.differs</CODE>.
*/
public static final String STRING_TO_COMPARE_VALUE_DIFFERED = "jmx.monitor.string.differs";
/*
* ------------------------------------------
* PRIVATE VARIABLES
* ------------------------------------------
*/
/* Serial version */
private static final long serialVersionUID = -4608189663661929204L;
/**
* @serial Monitor notification observed object.
*/
private ObjectName observedObject = null;
/**
* @serial Monitor notification observed attribute.
*/
private String observedAttribute = null;
/**
* @serial Monitor notification derived gauge.
*/
private Object derivedGauge = null;
/**
* @serial Monitor notification release mechanism.
* This value is used to keep the threshold/string (depending on the
* monitor type) that triggered off this notification.
*/
private Object trigger = null;
/*
* ------------------------------------------
* CONSTRUCTORS
* ------------------------------------------
*/
/**
* Creates a monitor notification object.
*
* @param type The notification type.
* @param source The notification producer.
* @param sequenceNumber The notification sequence number within the source object.
* @param timeStamp The notification emission date.
* @param msg The notification message.
* @param obsObj The object observed by the producer of this notification.
* @param obsAtt The attribute observed by the producer of this notification.
* @param derGauge The derived gauge.
* @param trigger The threshold/string (depending on the monitor type) that triggered the notification.
*/
MonitorNotification(String type, Object source, long sequenceNumber, long timeStamp, String msg,
ObjectName obsObj, String obsAtt, Object derGauge, Object trigger) {
super(type, source, sequenceNumber, timeStamp, msg);
this.observedObject = obsObj;
this.observedAttribute = obsAtt;
this.derivedGauge = derGauge;
this.trigger = trigger;
}
/*
* ------------------------------------------
* PUBLIC METHODS
* ------------------------------------------
*/
// GETTERS AND SETTERS
//--------------------
/**
* Gets the observed object of this monitor notification.
*
* @return The observed object.
*/
public ObjectName getObservedObject() {
return observedObject;
}
/**
* Gets the observed attribute of this monitor notification.
*
* @return The observed attribute.
*/
public String getObservedAttribute() {
return observedAttribute;
}
/**
* Gets the derived gauge of this monitor notification.
*
* @return The derived gauge.
*/
public Object getDerivedGauge() {
return derivedGauge;
}
/**
* Gets the threshold/string (depending on the monitor type) that triggered off this monitor notification.
*
* @return The trigger.
*/
public Object getTrigger() {
return trigger;
}
}
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