public final class NoopRegistry extends java.lang.Object implements Registry
Constructor and Description |
---|
NoopRegistry() |
Modifier and Type | Method and Description |
---|---|
Clock |
clock()
The clock used by the registry for timing events.
|
Counter |
counter(Id id)
Measures the rate of some activity.
|
Id |
createId(java.lang.String name)
Creates an identifier for a meter.
|
Id |
createId(java.lang.String name,
java.lang.Iterable<Tag> tags)
Creates an identifier for a meter.
|
DistributionSummary |
distributionSummary(Id id)
Measures the rate and variation in amount for some activity.
|
Gauge |
gauge(Id id)
Represents a value sampled from another source.
|
Meter |
get(Id id)
Returns the meter associated with a given id.
|
java.util.Iterator<Meter> |
iterator()
Iterator for traversing the set of meters in the registry.
|
Gauge |
maxGauge(Id id)
Measures the maximum value recorded since the last reset.
|
void |
propagate(java.lang.String msg,
java.lang.Throwable t)
Log a warning and if enabled propagate the exception
t . |
void |
propagate(java.lang.Throwable t)
Log a warning using the message from the exception and if enabled propagate the
exception
t . |
void |
register(Meter meter)
Register a passive gauge.
|
java.util.concurrent.ConcurrentMap<Id,java.lang.Object> |
state()
Returns a map that can be used to associate state with the registry.
|
Timer |
timer(Id id)
Measures the rate and time taken for short running tasks.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
collectionSize, collectionSize, config, counter, counter, counter, counters, createId, createId, distributionSummaries, distributionSummary, distributionSummary, distributionSummary, gauge, gauge, gauge, gauge, gauge, gauge, gauge, gauge, gauges, longTaskTimer, longTaskTimer, longTaskTimer, longTaskTimer, mapSize, mapSize, maxGauge, maxGauge, maxGauge, methodValue, methodValue, stream, timer, timer, timer, timers, underlying
public Clock clock()
Registry
public Id createId(java.lang.String name)
Registry
public Id createId(java.lang.String name, java.lang.Iterable<Tag> tags)
Registry
public void register(Meter meter)
Registry
register
in interface Registry
Registry.gauge(Id, Number)
,
Registry.gauge(Id, Object, ToDoubleFunction)
,
Registry.collectionSize(Id, Collection)
,
Registry.mapSize(Id, Map)
public java.util.concurrent.ConcurrentMap<Id,java.lang.Object> state()
Registry
LongTaskTimer
.public Counter counter(Id id)
Registry
counter
in interface Registry
id
- Identifier created by a call to Registry.createId(java.lang.String)
public DistributionSummary distributionSummary(Id id)
Registry
distributionSummary
in interface Registry
id
- Identifier created by a call to Registry.createId(java.lang.String)
public Timer timer(Id id)
Registry
timer
in interface Registry
id
- Identifier created by a call to Registry.createId(java.lang.String)
public Gauge gauge(Id id)
Registry
Gauge.set(double)
.
Registry implementations are free to expire the gauge if it has not been updated in the
last minute. If you do not want to worry about the sampling, then use PolledMeter
instead.gauge
in interface Registry
id
- Identifier created by a call to Registry.createId(java.lang.String)
public Gauge maxGauge(Id id)
Registry
Registry.distributionSummary(Id)
which provides a max along with other stats for most
registry implementations.maxGauge
in interface Registry
id
- Identifier created by a call to Registry.createId(java.lang.String)
public Meter get(Id id)
Registry
public java.util.Iterator<Meter> iterator()
Registry
public void propagate(java.lang.String msg, java.lang.Throwable t)
Registry
t
. As a general rule
instrumentation code should degrade gracefully and avoid impacting the core application. If
the user makes a mistake and causes something to break, then it should not impact the
application unless that mistake triggers a problem outside of the instrumentation code.
However, in test code it is often better to throw so that mistakes are caught and corrected.
This method is used to handle exceptions internal to the instrumentation code. Propagation
is controlled by the RegistryConfig.propagateWarnings()
setting. If the setting
is true, then the exception will be propagated. Otherwise the exception will only get logged
as a warning.public void propagate(java.lang.Throwable t)
Registry
t
. For more information see Registry.propagate(String, Throwable)
.