com.azul.zing.management

Class GarbageCollectorNotificationInfo

java.lang.Object

com.azul.zing.management.GarbageCollectorNotificationInfo

public class GarbageCollectorNotificationInfo
extends java.lang.Object

Garbage collector notification information.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	APPLICATION_THREAD_ALLOCATION_DELAYED_NOTIFICATION Notification that at least one application thread was required to wait because its request to allocate memory was not able to be satisfied because no free memory was available; This is an event notification and requires only that a notification listener be added.
static java.lang.String	GARBAGE_COLLECTION_DURATION_THRESHOLD_EXCEEDED Notification that the time required to complete a garbage collection (the duration of the garbage collection) exceeded the specified threshold; This is a threshold notification and requires that a threshold value greater than zero be set using the GarbageCollectorMXBean.setGarbageCollectionDurationThreshold(double) method; The check to see whether this threshold has been exceeded is made after each garbage collection has completed.
static java.lang.String	GARBAGE_COLLECTION_NOTIFICATION Notification that a garbage collection for a specific collector has completed; This is an event notification and requires only that a notification listener be added.
static java.lang.String	GARBAGE_COLLECTION_PAUSE_DURATION_THRESHOLD_EXCEEDED Notification that a pause required by the garbage collector exceeded the specified threshold; This is a threshold notification and requires that a threshold value greater than zero be set using the GarbageCollectorMXBean.setGarbageCollectionPauseDurationThreshold(double) method; The check to see whether this threshold has been exceeded is made after each garbage collection has completed.
static java.lang.String	PERCENTAGE_OF_TIME_COLLECTOR_IS_RUNNING_THRESHOLD_EXCEEDED Notification that the garbage collector was running for a higher percentage of time than the specified threshold; This is a threshold notification and requires that a threshold value greater than zero be set using the GarbageCollectorMXBean.setPercentageOfTimeCollectorIsRunningThreshold(double) method; The check to see whether this threshold has been exceeded is made after each garbage collection has completed.

Constructor Summary

Constructors

Constructor and Description
GarbageCollectorNotificationInfo(java.lang.String collectorName, java.lang.String notificationReason, long count, GCDetails gcDetails) Constructs a GarbageCollectorNotificationInfo instance.

Method Summary

Methods

Modifier and Type	Method and Description
static GarbageCollectorNotificationInfo	from(javax.management.openmbean.CompositeData cd) Constructs a GarbageCollectorNotificationInfo object from the CompositeData passed.
java.lang.String	getCollectorName()
long	getCount()
GCDetails	getGCDetails()
java.lang.String	getNotificationReason()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

APPLICATION_THREAD_ALLOCATION_DELAYED_NOTIFICATION

public static final java.lang.String APPLICATION_THREAD_ALLOCATION_DELAYED_NOTIFICATION

Notification that at least one application thread was required to wait because its request to allocate memory was not able to be satisfied because no free memory was available; This is an event notification and requires only that a notification listener be added.

See Also:

Constant Field Values

GARBAGE_COLLECTION_DURATION_THRESHOLD_EXCEEDED

public static final java.lang.String GARBAGE_COLLECTION_DURATION_THRESHOLD_EXCEEDED

Notification that the time required to complete a garbage collection (the duration of the garbage collection) exceeded the specified threshold; This is a threshold notification and requires that a threshold value greater than zero be set using the GarbageCollectorMXBean.setGarbageCollectionDurationThreshold(double) method; The check to see whether this threshold has been exceeded is made after each garbage collection has completed.

See Also:

Constant Field Values

GARBAGE_COLLECTION_NOTIFICATION

public static final java.lang.String GARBAGE_COLLECTION_NOTIFICATION

Notification that a garbage collection for a specific collector has completed; This is an event notification and requires only that a notification listener be added.

See Also:

Constant Field Values

GARBAGE_COLLECTION_PAUSE_DURATION_THRESHOLD_EXCEEDED

public static final java.lang.String GARBAGE_COLLECTION_PAUSE_DURATION_THRESHOLD_EXCEEDED

Notification that a pause required by the garbage collector exceeded the specified threshold; This is a threshold notification and requires that a threshold value greater than zero be set using the GarbageCollectorMXBean.setGarbageCollectionPauseDurationThreshold(double) method; The check to see whether this threshold has been exceeded is made after each garbage collection has completed.

See Also:

Constant Field Values

PERCENTAGE_OF_TIME_COLLECTOR_IS_RUNNING_THRESHOLD_EXCEEDED

public static final java.lang.String PERCENTAGE_OF_TIME_COLLECTOR_IS_RUNNING_THRESHOLD_EXCEEDED

Notification that the garbage collector was running for a higher percentage of time than the specified threshold; This is a threshold notification and requires that a threshold value greater than zero be set using the GarbageCollectorMXBean.setPercentageOfTimeCollectorIsRunningThreshold(double) method; The check to see whether this threshold has been exceeded is made after each garbage collection has completed.

See Also:

Constant Field Values

Constructor Detail

GarbageCollectorNotificationInfo

public GarbageCollectorNotificationInfo(java.lang.String collectorName,
                                java.lang.String notificationReason,
                                long count,
                                GCDetails gcDetails)

Constructs a GarbageCollectorNotificationInfo instance.

Parameters:

collectorName - The garbage collector name.

notificationReason - The reason for the notification.

count - The number of times the threshold has been crossed

gcDetails - The details of the last collection

Throws:

java.lang.IllegalArgumentException - if collectorName or notificationReason or gcDetails is null

Method Detail

from

public static GarbageCollectorNotificationInfo from(javax.management.openmbean.CompositeData cd)

Constructs a GarbageCollectorNotificationInfo object from the CompositeData passed.

Parameters:

cd - The CompositeData object from which to retrieve the GarbageCollectorNotificationInfo data.

Returns:

A {code GarbageCollectorNotificationInfo} instance or null if cd is null its contents are invalid.

Throws:

java.lang.IllegalArgumentException - if cd does not contain valid GarbageCollectorNotification data.

java.lang.NullPointerException - if attributes in the cd are not valid.

getCollectorName

public java.lang.String getCollectorName()

getCount

public long getCount()

getGCDetails

public GCDetails getGCDetails()

getNotificationReason

public java.lang.String getNotificationReason()