Package org.apache.nifi.reporting.util.metrics

Class MetricsService

java.lang.Object

org.apache.nifi.reporting.util.metrics.MetricsService

public class MetricsService
extends Object

A service used to produce key/value metrics based on a given input.

Constructor Summary

Constructors

Constructor	Description
MetricsService()

Method Summary

Modifier and Type	Method	Description
private boolean	addEmptyValue(Map<String,?> metricsMap, String metricskey, javax.json.JsonObjectBuilder objectBuilder, boolean allowNullValues)
private String	appendPgId(String name, ProcessGroupStatus status, boolean appendPgId)
protected long	calculateProcessingNanos(ProcessGroupStatus status)
private Map<String,Double>	getDoubleMetrics(JvmMetrics virtualMachineMetrics)
private Map<String,Integer>	getIntegerMetrics(ProcessGroupStatus status, boolean appendPgId)
private Map<String,Integer>	getIntegerMetrics(JvmMetrics virtualMachineMetrics)
private Map<String,Long>	getLongMetrics(ProcessGroupStatus status, boolean appendPgId)
private Map<String,Long>	getLongMetrics(JvmMetrics virtualMachineMetrics)
javax.json.JsonObject	getMetrics(javax.json.JsonBuilderFactory factory, ProcessGroupStatus status, JvmMetrics virtualMachineMetrics, String applicationId, String id, String hostname, long currentTimeMillis, int availableProcessors, double systemLoad, boolean allowNullValues)
Map<String,String>	getMetrics(ProcessGroupStatus status, boolean appendPgId)	Generates a Map of metrics for a ProcessGroupStatus instance.
Map<String,String>	getMetrics(JvmMetrics virtualMachineMetrics)	Generates a Map of metrics for VirtualMachineMetrics.

Methods inherited from class java.lang.Object

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

Constructor Details

MetricsService

public MetricsService()

Method Details

getMetrics

public Map<String,String> getMetrics(ProcessGroupStatus status,
 boolean appendPgId)

Generates a Map of metrics for a ProcessGroupStatus instance.

Parameters:

status - a ProcessGroupStatus to get metrics from

appendPgId - if true, the process group ID will be appended at the end of the metric name

Returns:

a map of metrics for the given status

getIntegerMetrics

private Map<String,Integer> getIntegerMetrics(ProcessGroupStatus status,
 boolean appendPgId)

getLongMetrics

private Map<String,Long> getLongMetrics(ProcessGroupStatus status,
 boolean appendPgId)

getMetrics

public Map<String,String> getMetrics(JvmMetrics virtualMachineMetrics)

Generates a Map of metrics for VirtualMachineMetrics.

Parameters:

virtualMachineMetrics - a VirtualMachineMetrics instance to get metrics from

Returns:

a map of metrics from the given VirtualMachineStatus

calculateProcessingNanos

protected long calculateProcessingNanos(ProcessGroupStatus status)

appendPgId

private String appendPgId(String name,
 ProcessGroupStatus status,
 boolean appendPgId)

getDoubleMetrics

private Map<String,Double> getDoubleMetrics(JvmMetrics virtualMachineMetrics)

getLongMetrics

private Map<String,Long> getLongMetrics(JvmMetrics virtualMachineMetrics)

getIntegerMetrics

private Map<String,Integer> getIntegerMetrics(JvmMetrics virtualMachineMetrics)

addEmptyValue

private boolean addEmptyValue(Map<String,?> metricsMap,
 String metricskey,
 javax.json.JsonObjectBuilder objectBuilder,
 boolean allowNullValues)

getMetrics

public javax.json.JsonObject getMetrics(javax.json.JsonBuilderFactory factory,
 ProcessGroupStatus status,
 JvmMetrics virtualMachineMetrics,
 String applicationId,
 String id,
 String hostname,
 long currentTimeMillis,
 int availableProcessors,
 double systemLoad,
 boolean allowNullValues)