org.springframework.boot.actuate.metrics.repository

Class InMemoryMultiMetricRepository

java.lang.Object

org.springframework.boot.actuate.metrics.repository.InMemoryMultiMetricRepository

All Implemented Interfaces:

PrefixMetricReader, MultiMetricRepository, PrefixMetricWriter

public class InMemoryMultiMetricRepository
extends Object
implements MultiMetricRepository

MultiMetricRepository implementation backed by a InMemoryMetricRepository.

Since:

1.5.0

Author:

Stephane Nicoll

Constructor Summary

Constructors

Constructor and Description
InMemoryMultiMetricRepository() Create a new InMemoryMetricRepository backed by a new InMemoryMetricRepository.
InMemoryMultiMetricRepository(InMemoryMetricRepository repository) Create a new InMemoryMetricRepository backed by the specified InMemoryMetricRepository.

Method Summary

Modifier and Type	Method and Description
long	countGroups() The number of groups available in this repository.
Iterable<Metric<?>>	findAll(String metricNamePrefix) Find all metrics whose name starts with the given prefix.
Iterable<String>	groups() The names of all the groups known to this repository.
void	increment(String group, Delta<?> delta) Increment the value of a metric (or decrement if the delta is negative).
void	reset(String group) Rest the values of all metrics in the group.
void	set(String group, Collection<Metric<?>> values) Save some metric values and associate them with a group name.

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemoryMultiMetricRepository

public InMemoryMultiMetricRepository()

Create a new InMemoryMetricRepository backed by a new InMemoryMetricRepository.

InMemoryMultiMetricRepository

public InMemoryMultiMetricRepository(InMemoryMetricRepository repository)

Create a new InMemoryMetricRepository backed by the specified InMemoryMetricRepository.

Parameters:

repository - the backing repository

Method Detail

set

public void set(String group,
                Collection<Metric<?>> values)

Description copied from interface: PrefixMetricWriter

Save some metric values and associate them with a group name.

Specified by:

set in interface PrefixMetricWriter

Parameters:

group - the name of the group

values - the metric values to save

increment

public void increment(String group,
                      Delta<?> delta)

Description copied from interface: PrefixMetricWriter

Increment the value of a metric (or decrement if the delta is negative). The name of the metric to increment is group + "." + delta.name.

Specified by:

increment in interface PrefixMetricWriter

Parameters:

group - the name of the group

delta - the amount to increment by

groups

public Iterable<String> groups()

Description copied from interface: MultiMetricRepository

The names of all the groups known to this repository.

Specified by:

groups in interface MultiMetricRepository

Returns:

all available group names

countGroups

public long countGroups()

Description copied from interface: MultiMetricRepository

The number of groups available in this repository.

Specified by:

countGroups in interface MultiMetricRepository

Returns:

the number of groups

reset

public void reset(String group)

Description copied from interface: PrefixMetricWriter

Rest the values of all metrics in the group. Implementations may choose to discard the old values.

Specified by:

reset in interface PrefixMetricWriter

Parameters:

group - reset the whole group

findAll

public Iterable<Metric<?>> findAll(String metricNamePrefix)

Description copied from interface: PrefixMetricReader

Find all metrics whose name starts with the given prefix.

Specified by:

findAll in interface PrefixMetricReader

Parameters:

metricNamePrefix - the prefix for metric names

Returns:

all metrics with names starting with the prefix