net.centro.rtb.monitoringcenter.metrics.system.os

Class OperatingSystemMetricSet

java.lang.Object

net.centro.rtb.monitoringcenter.metrics.system.os.OperatingSystemMetricSet

All Implemented Interfaces:

com.codahale.metrics.Metric, com.codahale.metrics.MetricSet, OperatingSystemStatus

public class OperatingSystemMetricSet
extends Object
implements com.codahale.metrics.MetricSet, OperatingSystemStatus

Constructor Summary

Constructors

Constructor and Description
OperatingSystemMetricSet()

Method Summary

Modifier and Type	Method and Description
com.codahale.metrics.Gauge<Integer>	getAvailableLogicalProcessorsGauge() Retrieves the number of logical processors as observed by the JVM.
com.codahale.metrics.Gauge<Long>	getCommittedVirtualMemorySizeInBytesGauge() Retrieves the amount of virtual memory that is guaranteed to be available to the running process in bytes.
com.codahale.metrics.Gauge<Long>	getFreeDiskSpaceInBytesGauge() Retrieves the free disk space in bytes for the root path ("/").
com.codahale.metrics.Gauge<Long>	getFreePhysicalMemorySizeInBytesGauge() Retrieves the amount of free physical memory in bytes.
com.codahale.metrics.Gauge<Long>	getFreeSwapSpaceSizeInBytesGauge() Retrieves the amount of free swap space in bytes.
com.codahale.metrics.Gauge<Double>	getIoWaitPercentageGauge() Retrieves a recent UNIX iowait (percentage of CPU blocked for IO) value as reported in the output for the iostat command.
com.codahale.metrics.Gauge<Double>	getJvmCpuBusyPercentageGauge() Retrieves the recent CPU usage for the JVM process.
com.codahale.metrics.Gauge<Long>	getMaxFileDescriptorsGauge() Retrieves the maximum number of file descriptors.
Map<String,com.codahale.metrics.Metric>	getMetrics()
List<NetworkInterfaceStatus>	getNetworkInterfaceStatuses() Retrieves a list of network interface statuses.
com.codahale.metrics.Gauge<Long>	getOpenFileDescriptorsGauge() Retrieves the number of open file descriptors.
com.codahale.metrics.Gauge<Double>	getSystemCpuBusyPercentageGauge() Retrieves the recent CPU usage for the whole system.
com.codahale.metrics.Gauge<Double>	getSystemLoadAverageGauge() Retrieves the UNIX system load average for the past minute.
com.codahale.metrics.Gauge<Double>	getSystemLoadAveragePerLogicalProcessorGauge() Retrieves the UNIX system load average for the past minute divided by the number of logical processors.
com.codahale.metrics.Gauge<Long>	getTotalDiskSpaceInBytesGauge() Retrieves the total disk space in bytes for the root path ("/").
com.codahale.metrics.Gauge<Long>	getTotalPhysicalMemorySizeInBytesGauge() Retrieves the total amount of physical memory in bytes.
com.codahale.metrics.Gauge<Long>	getTotalSwapSpaceSizeInBytesGauge() Retrieves the total amount of swap space in bytes.
com.codahale.metrics.Gauge<Double>	getUsedDiskSpacePercentageGauge() Retrieves the percentage of used disk space for the root path ("/").
com.codahale.metrics.Gauge<Double>	getUsedFileDescriptorsPercentageGauge() Retrieves the percentage of used file descriptors.
com.codahale.metrics.Gauge<Double>	getUsedPhysicalMemoryPercentageGauge() Retrieves the percentage of used physical memory.
com.codahale.metrics.Gauge<Double>	getUsedSwapSpacePercentageGauge() Retrieves the percentage of used swap space.
void	shutdown()

Methods inherited from class java.lang.Object

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

Constructor Detail

OperatingSystemMetricSet

public OperatingSystemMetricSet()

Method Detail

getMetrics

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

Specified by:

getMetrics in interface com.codahale.metrics.MetricSet

getAvailableLogicalProcessorsGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the number of logical processors as observed by the JVM. Logical processors are individual cores, summed up for all sockets and, possibly, multiplied by a factor of two whenever Intel's hyper-threading technology is in play.

Specified by:

getAvailableLogicalProcessorsGauge in interface OperatingSystemStatus

Returns:

a gauge holding the number of logical processors as observed by the JVM.

See Also:

OperatingSystemMXBean.getAvailableProcessors()

getSystemLoadAverageGauge

public com.codahale.metrics.Gauge<Double> getSystemLoadAverageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the UNIX system load average for the past minute.

Specified by:

getSystemLoadAverageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the system load average for the past minute; null if not available.

See Also:

OperatingSystemMXBean.getSystemLoadAverage()

getSystemLoadAveragePerLogicalProcessorGauge

public com.codahale.metrics.Gauge<Double> getSystemLoadAveragePerLogicalProcessorGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the UNIX system load average for the past minute divided by the number of logical processors.

Specified by:

getSystemLoadAveragePerLogicalProcessorGauge in interface OperatingSystemStatus

Returns:

a gauge holding the system load average for the past minute per logical processor; null if not available.

getJvmCpuBusyPercentageGauge

public com.codahale.metrics.Gauge<Double> getJvmCpuBusyPercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the recent CPU usage for the JVM process. The returned value is in the range from 0 to 100.

Specified by:

getJvmCpuBusyPercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the percentage of the time CPU was busy recently running JVM threads; null if not available.

See Also:

OperatingSystemMXBean.getProcessCpuLoad()

getSystemCpuBusyPercentageGauge

public com.codahale.metrics.Gauge<Double> getSystemCpuBusyPercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the recent CPU usage for the whole system. The returned value is in the range from 0 to 100.

Specified by:

getSystemCpuBusyPercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the percentage of the time CPU was busy recently; null if not available.

See Also:

OperatingSystemMXBean.getSystemCpuLoad()

getCommittedVirtualMemorySizeInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the amount of virtual memory that is guaranteed to be available to the running process in bytes.

Specified by:

getCommittedVirtualMemorySizeInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the amount of virtual memory that is guaranteed to be available; null if not available.

See Also:

OperatingSystemMXBean.getCommittedVirtualMemorySize()

getTotalPhysicalMemorySizeInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the total amount of physical memory in bytes.

Specified by:

getTotalPhysicalMemorySizeInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the total amount of physical memory in bytes; null if not available.

See Also:

OperatingSystemMXBean.getTotalPhysicalMemorySize()

getFreePhysicalMemorySizeInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the amount of free physical memory in bytes.

Specified by:

getFreePhysicalMemorySizeInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the amount of free physical memory in bytes; null if not available.

See Also:

OperatingSystemMXBean.getFreePhysicalMemorySize()

getUsedPhysicalMemoryPercentageGauge

public com.codahale.metrics.Gauge<Double> getUsedPhysicalMemoryPercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the percentage of used physical memory. The returned value is in the range from 0 to 100.

Specified by:

getUsedPhysicalMemoryPercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the percentage of used physical memory; null if not available.

getTotalSwapSpaceSizeInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the total amount of swap space in bytes.

Specified by:

getTotalSwapSpaceSizeInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the total amount of swap space in bytes; null if not available.

See Also:

OperatingSystemMXBean.getTotalSwapSpaceSize()

getFreeSwapSpaceSizeInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the amount of free swap space in bytes.

Specified by:

getFreeSwapSpaceSizeInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the amount of free swap space in bytes; null if not available.

See Also:

OperatingSystemMXBean.getFreeSwapSpaceSize()

getUsedSwapSpacePercentageGauge

public com.codahale.metrics.Gauge<Double> getUsedSwapSpacePercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the percentage of used swap space. The returned value is in the range from 0 to 100.

Specified by:

getUsedSwapSpacePercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the percentage of used swap space; null if not available.

getMaxFileDescriptorsGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the maximum number of file descriptors.

Specified by:

getMaxFileDescriptorsGauge in interface OperatingSystemStatus

Returns:

a gauge holding the maximum number of file descriptors; null if not available.

See Also:

UnixOperatingSystemMXBean.getMaxFileDescriptorCount()

getOpenFileDescriptorsGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the number of open file descriptors.

Specified by:

getOpenFileDescriptorsGauge in interface OperatingSystemStatus

Returns:

a gauge holding the number of open file descriptors; null if not available.

See Also:

UnixOperatingSystemMXBean.getOpenFileDescriptorCount()

getUsedFileDescriptorsPercentageGauge

public com.codahale.metrics.Gauge<Double> getUsedFileDescriptorsPercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the percentage of used file descriptors. The returned value is in the range from 0 to 100.

Specified by:

getUsedFileDescriptorsPercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the percentage of used file descriptors; null if not available.

getTotalDiskSpaceInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the total disk space in bytes for the root path ("/").

Specified by:

getTotalDiskSpaceInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the total disk space in bytes for the root path; null if not available.

See Also:

File.getTotalSpace()

getFreeDiskSpaceInBytesGauge

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

Description copied from interface: OperatingSystemStatus

Retrieves the free disk space in bytes for the root path ("/").

Specified by:

getFreeDiskSpaceInBytesGauge in interface OperatingSystemStatus

Returns:

a gauge holding the free disk space in bytes for the root path; null if not available.

See Also:

()

getUsedDiskSpacePercentageGauge

public com.codahale.metrics.Gauge<Double> getUsedDiskSpacePercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves the percentage of used disk space for the root path ("/"). The returned value is in the range from 0 to 100.

Specified by:

getUsedDiskSpacePercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding the percentage of used disk space for the root path; null if not available.

getIoWaitPercentageGauge

public com.codahale.metrics.Gauge<Double> getIoWaitPercentageGauge()

Description copied from interface: OperatingSystemStatus

Retrieves a recent UNIX iowait (percentage of CPU blocked for IO) value as reported in the output for the iostat command. The returned value is in the range from 0 to 100.

Specified by:

getIoWaitPercentageGauge in interface OperatingSystemStatus

Returns:

a gauge holding a recent UNIX iowait value; null if not available.

getNetworkInterfaceStatuses

public List<NetworkInterfaceStatus> getNetworkInterfaceStatuses()

Description copied from interface: OperatingSystemStatus

Retrieves a list of network interface statuses. An empty list is returned if no network interface data is available.

Specified by:

getNetworkInterfaceStatuses in interface OperatingSystemStatus

Returns:

a list of network interface statuses.

shutdown

public void shutdown()