io.aeron.cluster.service

Class ClusterCounters

java.lang.Object

io.aeron.cluster.service.ClusterCounters

public final class ClusterCounters
extends Object

For allocating and finding cluster associated counters identified by ClusteredServiceContainer.Context.clusterId().

Method Summary

Modifier and Type	Method and Description
static Counter	allocate(Aeron aeron, String name, int typeId, int clusterId) Allocate a counter to represent the a component state within a cluster.
static int	find(CountersReader counters, int typeId, int clusterId) Find the counter id for a type of counter in a cluster.

Methods inherited from class java.lang.Object

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

Method Detail

allocate

public static Counter allocate(Aeron aeron,
                               String name,
                               int typeId,
                               int clusterId)

Allocate a counter to represent the a component state within a cluster.

Parameters:

aeron - to allocate the counter.

name - of the counter for the label.

typeId - for the counter.

clusterId - to which the allocated counter belongs.

Returns:

the Counter for the commit position.

find

public static int find(CountersReader counters,
                       int typeId,
                       int clusterId)

Find the counter id for a type of counter in a cluster.

Parameters:

counters - to search within.

typeId - of the counter.

clusterId - to which the allocated counter belongs.

Returns:

the matching counter id or Aeron.NULL_VALUE if not found.