net.centro.rtb.monitoringcenter.metrics.system.jvm

Class JvmMetricSet

java.lang.Object

net.centro.rtb.monitoringcenter.metrics.system.jvm.JvmMetricSet

All Implemented Interfaces:

com.codahale.metrics.Metric, com.codahale.metrics.MetricSet, JvmStatus

public class JvmMetricSet
extends Object
implements com.codahale.metrics.MetricSet, JvmStatus

Constructor Summary

Constructors

Constructor and Description
JvmMetricSet()

Method Summary

Modifier and Type	Method and Description
List<BufferPoolStatus>	getBufferPoolStatuses() Retrieves a list of buffer pool statuses.
com.codahale.metrics.Gauge<Integer>	getCurrentlyLoadedClassesGauge() Retrieves the number of classes that are currently loaded in the JVM.
com.codahale.metrics.Gauge<Integer>	getCurrentThreadsGauge() Retrieves the current number of live threads including both daemon and non-daemon threads.
com.codahale.metrics.Gauge<Integer>	getDaemonThreadsGauge() Retrieves the current number of live daemon threads.
com.codahale.metrics.Gauge<Integer>	getDeadlockedThreadsGauge() Retrieves the number of threads that are currently deadlocked.
com.codahale.metrics.Gauge<Long>	getFullGcCollectionsGauge() Retrieves the number of full garbage collections since the JVM started execution.
List<GarbageCollectorStatus>	getGarbageCollectorStatuses() Retrieves a list of garbage collector statuses.
MemoryUsageStatus	getHeapMemoryUsageStatus() Retrieves the memory usage status of the heap space.
com.codahale.metrics.Timer	getMajorGcTimer() Retrieves the timer for major garbage collections.
List<MemoryPoolStatus>	getMemoryPoolStatuses() Retrieves a list of memory pool statuses.
Map<String,com.codahale.metrics.Metric>	getMetrics()
com.codahale.metrics.Timer	getMinorGcTimer() Retrieves the timer for minor garbage collections.
MemoryUsageStatus	getNonHeapMemoryUsageStatus() Retrieves the memory usage status of the non-heap space.
com.codahale.metrics.Gauge<Integer>	getPeakThreadsGauge() Retrieves the peak live thread count since the JVM started or peak was reset.
Map<Thread.State,com.codahale.metrics.Gauge<Integer>>	getThreadsGaugesByThreadStates() Retrieves current thread counts by thread states.
com.codahale.metrics.Gauge<Long>	getTotalLoadedClassesGauge() Retrieves the total number of classes loaded since the JVM started execution.
MemoryUsageStatus	getTotalMemoryUsageStatus() Retrieves the total memory usage status, including both heap and non-heap spaces.
com.codahale.metrics.Gauge<Long>	getUnloadedClassesGauge() Retrieves the total number of classes unloaded since the JVM started execution.
com.codahale.metrics.Gauge<Long>	getUptimeInMillisGauge() Retrieves the uptime of the JVM in milliseconds.
void	shutdown()

Methods inherited from class java.lang.Object

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

Constructor Detail

JvmMetricSet

public JvmMetricSet()

Method Detail

getMetrics

public Map<String,com.codahale.metrics.Metric> getMetrics()

Specified by:

getMetrics in interface com.codahale.metrics.MetricSet

getBufferPoolStatuses

public List<BufferPoolStatus> getBufferPoolStatuses()

Description copied from interface: JvmStatus

Retrieves a list of buffer pool statuses. An empty list is returned if no buffer pool data is available.

Specified by:

getBufferPoolStatuses in interface JvmStatus

Returns:

a list of buffer pool statuses.

getTotalLoadedClassesGauge

public com.codahale.metrics.Gauge<Long> getTotalLoadedClassesGauge()

Description copied from interface: JvmStatus

Retrieves the total number of classes loaded since the JVM started execution.

Specified by:

getTotalLoadedClassesGauge in interface JvmStatus

Returns:

a gauge holding the total number of classes loaded in the lifetime of this JVM.

See Also:

ClassLoadingMXBean.getTotalLoadedClassCount()

getUnloadedClassesGauge

public com.codahale.metrics.Gauge<Long> getUnloadedClassesGauge()

Description copied from interface: JvmStatus

Retrieves the total number of classes unloaded since the JVM started execution.

Specified by:

getUnloadedClassesGauge in interface JvmStatus

Returns:

a gauge holding the total number of classes unloaded since the JVM started execution.

See Also:

ClassLoadingMXBean.getUnloadedClassCount()

getCurrentlyLoadedClassesGauge

public com.codahale.metrics.Gauge<Integer> getCurrentlyLoadedClassesGauge()

Description copied from interface: JvmStatus

Retrieves the number of classes that are currently loaded in the JVM.

Specified by:

getCurrentlyLoadedClassesGauge in interface JvmStatus

Returns:

a gauge holding the number of classes that are currently loaded in the JVM.

See Also:

ClassLoadingMXBean.getLoadedClassCount()

getCurrentThreadsGauge

public com.codahale.metrics.Gauge<Integer> getCurrentThreadsGauge()

Description copied from interface: JvmStatus

Retrieves the current number of live threads including both daemon and non-daemon threads.

Specified by:

getCurrentThreadsGauge in interface JvmStatus

Returns:

a gauge holding the current number of live threads.

See Also:

ThreadMXBean.getThreadCount()

getPeakThreadsGauge

public com.codahale.metrics.Gauge<Integer> getPeakThreadsGauge()

Description copied from interface: JvmStatus

Retrieves the peak live thread count since the JVM started or peak was reset.

Specified by:

getPeakThreadsGauge in interface JvmStatus

Returns:

a gauge holding the peak live thread count.

See Also:

ThreadMXBean.getPeakThreadCount()

getDaemonThreadsGauge

public com.codahale.metrics.Gauge<Integer> getDaemonThreadsGauge()

Description copied from interface: JvmStatus

Retrieves the current number of live daemon threads.

Specified by:

getDaemonThreadsGauge in interface JvmStatus

Returns:

a gauge holding the current number of live daemon threads.

See Also:

ThreadMXBean.getDaemonThreadCount()

getDeadlockedThreadsGauge

public com.codahale.metrics.Gauge<Integer> getDeadlockedThreadsGauge()

Description copied from interface: JvmStatus

Retrieves the number of threads that are currently deadlocked.

Specified by:

getDeadlockedThreadsGauge in interface JvmStatus

Returns:

a gauge holding the number of threads that are currently deadlocked.

See Also:

ThreadMXBean.findDeadlockedThreads()

getThreadsGaugesByThreadStates

public Map<Thread.State,com.codahale.metrics.Gauge<Integer>> getThreadsGaugesByThreadStates()

Description copied from interface: JvmStatus

Retrieves current thread counts by thread states.

Specified by:

getThreadsGaugesByThreadStates in interface JvmStatus

Returns:

a map of gauges holding current thread counts by thread states.

getTotalMemoryUsageStatus

public MemoryUsageStatus getTotalMemoryUsageStatus()

Description copied from interface: JvmStatus

Retrieves the total memory usage status, including both heap and non-heap spaces.

Specified by:

getTotalMemoryUsageStatus in interface JvmStatus

Returns:

the total memory usage status.

getHeapMemoryUsageStatus

public MemoryUsageStatus getHeapMemoryUsageStatus()

Description copied from interface: JvmStatus

Retrieves the memory usage status of the heap space.

Specified by:

getHeapMemoryUsageStatus in interface JvmStatus

Returns:

the memory usage status of the heap space.

See Also:

MemoryMXBean.getHeapMemoryUsage()

getNonHeapMemoryUsageStatus

public MemoryUsageStatus getNonHeapMemoryUsageStatus()

Description copied from interface: JvmStatus

Retrieves the memory usage status of the non-heap space.

Specified by:

getNonHeapMemoryUsageStatus in interface JvmStatus

Returns:

the memory usage status of the non-heap space.

See Also:

MemoryMXBean.getNonHeapMemoryUsage()

getMemoryPoolStatuses

public List<MemoryPoolStatus> getMemoryPoolStatuses()

Description copied from interface: JvmStatus

Retrieves a list of memory pool statuses. An empty list is returned if no memory pool data is available.

Specified by:

getMemoryPoolStatuses in interface JvmStatus

Returns:

a list of memory pool statuses.

getGarbageCollectorStatuses

public List<GarbageCollectorStatus> getGarbageCollectorStatuses()

Description copied from interface: JvmStatus

Retrieves a list of garbage collector statuses. An empty list is returned if no garbage collector data is available.

Specified by:

getGarbageCollectorStatuses in interface JvmStatus

Returns:

a list of garbage collector statuses.

getMinorGcTimer

public com.codahale.metrics.Timer getMinorGcTimer()

Description copied from interface: JvmStatus

Retrieves the timer for minor garbage collections.

Specified by:

getMinorGcTimer in interface JvmStatus

Returns:

the timer for minor garbage collections.

getMajorGcTimer

public com.codahale.metrics.Timer getMajorGcTimer()

Description copied from interface: JvmStatus

Retrieves the timer for major garbage collections.

Specified by:

getMajorGcTimer in interface JvmStatus

Returns:

the timer for major garbage collections.

getFullGcCollectionsGauge

public com.codahale.metrics.Gauge<Long> getFullGcCollectionsGauge()

Description copied from interface: JvmStatus

Retrieves the number of full garbage collections since the JVM started execution.

Specified by:

getFullGcCollectionsGauge in interface JvmStatus

Returns:

a gauge holding the number of full garbage collections; null if not available.

getUptimeInMillisGauge

public com.codahale.metrics.Gauge<Long> getUptimeInMillisGauge()

Description copied from interface: JvmStatus

Retrieves the uptime of the JVM in milliseconds.

Specified by:

getUptimeInMillisGauge in interface JvmStatus

Returns:

a gauge holding the uptime of the Java virtual machine in milliseconds.

See Also:

RuntimeMXBean.getUptime()

shutdown

public void shutdown()