org.apache.cassandra.metrics

Class CassandraMetricsRegistry

java.lang.Object

com.codahale.metrics.MetricRegistry

org.apache.cassandra.metrics.CassandraMetricsRegistry

All Implemented Interfaces:

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

public class CassandraMetricsRegistry
extends com.codahale.metrics.MetricRegistry

Patches the Cassandra metric implementation to allow injecting our own registry.

This is messy because of how the original class was designed (no interface contract, relies on static state...): actualRegistry must be set manually before hitting any Cassandra code that might attempt to register a metric.

This class must mimic the exact public API of the original one.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CassandraMetricsRegistry.JmxCounterMBean
static interface	CassandraMetricsRegistry.JmxGaugeMBean
static interface	CassandraMetricsRegistry.JmxHistogramMBean
static interface	CassandraMetricsRegistry.JmxMeterMBean
static interface	CassandraMetricsRegistry.JmxTimerMBean
static interface	CassandraMetricsRegistry.MetricMBean
static class	CassandraMetricsRegistry.MetricName A value class encapsulating a metric's owning class and name.

Nested classes/interfaces inherited from class com.codahale.metrics.MetricRegistry

com.codahale.metrics.MetricRegistry.MetricSupplier<T extends com.codahale.metrics.Metric>

Field Summary

Fields

Modifier and Type	Field and Description
static com.codahale.metrics.MetricRegistry	actualRegistry
static CassandraMetricsRegistry	Metrics

Method Summary

Modifier and Type	Method and Description
Collection<org.apache.cassandra.metrics.ThreadPoolMetrics>	allThreadPoolMetrics()
com.codahale.metrics.Counter	counter(CassandraMetricsRegistry.MetricName name)
com.codahale.metrics.Counter	counter(CassandraMetricsRegistry.MetricName name, CassandraMetricsRegistry.MetricName alias)
Optional<org.apache.cassandra.metrics.ThreadPoolMetrics>	getThreadPoolMetrics(String poolName)
com.codahale.metrics.Histogram	histogram(CassandraMetricsRegistry.MetricName name, boolean considerZeroes)
com.codahale.metrics.Histogram	histogram(CassandraMetricsRegistry.MetricName name, CassandraMetricsRegistry.MetricName alias, boolean considerZeroes)
com.codahale.metrics.Meter	meter(CassandraMetricsRegistry.MetricName name)
com.codahale.metrics.Meter	meter(CassandraMetricsRegistry.MetricName name, CassandraMetricsRegistry.MetricName alias)
<T extends com.codahale.metrics.Metric> T	register(CassandraMetricsRegistry.MetricName name, CassandraMetricsRegistry.MetricName aliasName, T metric)
<T extends com.codahale.metrics.Metric> T	register(CassandraMetricsRegistry.MetricName name, T metric)
<T extends com.codahale.metrics.Metric> T	register(CassandraMetricsRegistry.MetricName name, T metric, CassandraMetricsRegistry.MetricName... aliases)
void	registerMBean(com.codahale.metrics.Metric metric, ObjectName name)
boolean	remove(CassandraMetricsRegistry.MetricName name)
boolean	remove(CassandraMetricsRegistry.MetricName name, CassandraMetricsRegistry.MetricName alias)
com.codahale.metrics.Timer	timer(CassandraMetricsRegistry.MetricName name)
com.codahale.metrics.Timer	timer(CassandraMetricsRegistry.MetricName name, CassandraMetricsRegistry.MetricName alias)

Methods inherited from class com.codahale.metrics.MetricRegistry

addListener, buildMap, counter, counter, gauge, getCounters, getCounters, getGauges, getGauges, getHistograms, getHistograms, getMeters, getMeters, getMetrics, getNames, getTimers, getTimers, histogram, histogram, meter, meter, name, name, register, registerAll, registerAll, remove, removeListener, removeMatching, timer, timer

Methods inherited from class java.lang.Object

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

Field Detail

actualRegistry

public static volatile com.codahale.metrics.MetricRegistry actualRegistry

Metrics

public static final CassandraMetricsRegistry Metrics

Method Detail

counter

public com.codahale.metrics.Counter counter(CassandraMetricsRegistry.MetricName name)

counter

public com.codahale.metrics.Counter counter(CassandraMetricsRegistry.MetricName name,
                                            CassandraMetricsRegistry.MetricName alias)

meter

public com.codahale.metrics.Meter meter(CassandraMetricsRegistry.MetricName name)

meter

public com.codahale.metrics.Meter meter(CassandraMetricsRegistry.MetricName name,
                                        CassandraMetricsRegistry.MetricName alias)

histogram

public com.codahale.metrics.Histogram histogram(CassandraMetricsRegistry.MetricName name,
                                                boolean considerZeroes)

histogram

public com.codahale.metrics.Histogram histogram(CassandraMetricsRegistry.MetricName name,
                                                CassandraMetricsRegistry.MetricName alias,
                                                boolean considerZeroes)

timer

public com.codahale.metrics.Timer timer(CassandraMetricsRegistry.MetricName name)

timer

public com.codahale.metrics.Timer timer(CassandraMetricsRegistry.MetricName name,
                                        CassandraMetricsRegistry.MetricName alias)

register

public <T extends com.codahale.metrics.Metric> T register(CassandraMetricsRegistry.MetricName name,
                                                          T metric)

allThreadPoolMetrics

public Collection<org.apache.cassandra.metrics.ThreadPoolMetrics> allThreadPoolMetrics()

getThreadPoolMetrics

public Optional<org.apache.cassandra.metrics.ThreadPoolMetrics> getThreadPoolMetrics(String poolName)

register

public <T extends com.codahale.metrics.Metric> T register(CassandraMetricsRegistry.MetricName name,
                                                          CassandraMetricsRegistry.MetricName aliasName,
                                                          T metric)

register

public <T extends com.codahale.metrics.Metric> T register(CassandraMetricsRegistry.MetricName name,
                                                          T metric,
                                                          CassandraMetricsRegistry.MetricName... aliases)

remove

public boolean remove(CassandraMetricsRegistry.MetricName name)

remove

public boolean remove(CassandraMetricsRegistry.MetricName name,
                      CassandraMetricsRegistry.MetricName alias)

registerMBean

public void registerMBean(com.codahale.metrics.Metric metric,
                          ObjectName name)