Package com.linecorp.armeria.common.util

Interface EventCounter

@UnstableApi
public interface EventCounter

A counter that counts events as success or failure.

Method Summary

Modifier and Type	Method	Description
EventCount	count()	Returns the current EventCount.
static EventCounter	ofSlidingWindow(Ticker ticker, Duration slidingWindow, Duration updateInterval)	Returns a new EventCounter that counts events within a sliding window.
static EventCounter	ofSlidingWindow(Duration slidingWindow, Duration updateInterval)	Returns a new EventCounter that counts events within a sliding window.
@Nullable EventCount	onFailure()	Counts failure events.
@Nullable EventCount	onSuccess()	Counts success events.

Method Details

ofSlidingWindow

static EventCounter ofSlidingWindow(Ticker ticker,
 Duration slidingWindow,
 Duration updateInterval)

Returns a new EventCounter that counts events within a sliding window.

ofSlidingWindow

static EventCounter ofSlidingWindow(Duration slidingWindow,
 Duration updateInterval)

Returns a new EventCounter that counts events within a sliding window.

count

EventCount count()

Returns the current EventCount.

onSuccess

@Nullable
@Nullable EventCount onSuccess()

Counts success events.

Returns:

the current EventCount if it has been updated, or null otherwise.

onFailure

@Nullable
@Nullable EventCount onFailure()

Counts failure events.

Returns:

the current EventCount if it has been updated, or null otherwise.