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 and Description
MetricsService()

Method Summary

Modifier and Type	Method and 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(JvmMetrics virtualMachineMetrics)
private Map<String,Integer>	getIntegerMetrics(ProcessGroupStatus status, boolean appendPgId)
private Map<String,Long>	getLongMetrics(JvmMetrics virtualMachineMetrics)
private Map<String,Long>	getLongMetrics(ProcessGroupStatus status, boolean appendPgId)
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(JvmMetrics virtualMachineMetrics) Generates a Map of metrics for VirtualMachineMetrics.
Map<String,String>	getMetrics(ProcessGroupStatus status, boolean appendPgId) Generates a Map of metrics for a ProcessGroupStatus instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetricsService

public MetricsService()

Method Detail

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)