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 String	appendPgId(String name, ProcessGroupStatus status, boolean appendPgId)
protected long	calculateProcessingNanos(ProcessGroupStatus status)
private Map<String,Double>	getDoubleMetrics(com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics)
private Map<String,Integer>	getIntegerMetrics(ProcessGroupStatus status, boolean appendPgId)
private Map<String,Integer>	getIntegerMetrics(com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics)
private Map<String,Long>	getLongMetrics(ProcessGroupStatus status, boolean appendPgId)
private Map<String,Long>	getLongMetrics(com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics)
javax.json.JsonObject	getMetrics(javax.json.JsonBuilderFactory factory, ProcessGroupStatus status, com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics, String applicationId, String id, String hostname, long currentTimeMillis, int availableProcessors, double systemLoad)
Map<String,String>	getMetrics(ProcessGroupStatus status, boolean appendPgId) Generates a Map of metrics for a ProcessGroupStatus instance.
Map<String,String>	getMetrics(com.yammer.metrics.core.VirtualMachineMetrics 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 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(com.yammer.metrics.core.VirtualMachineMetrics 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(com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics)

getLongMetrics

private Map<String,Long> getLongMetrics(com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics)

getIntegerMetrics

private Map<String,Integer> getIntegerMetrics(com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics)

getMetrics

public javax.json.JsonObject getMetrics(javax.json.JsonBuilderFactory factory,
                                        ProcessGroupStatus status,
                                        com.yammer.metrics.core.VirtualMachineMetrics virtualMachineMetrics,
                                        String applicationId,
                                        String id,
                                        String hostname,
                                        long currentTimeMillis,
                                        int availableProcessors,
                                        double systemLoad)