Wikimedia\WRStats\WRStatsFactory Class Reference

A factory for WRStats readers and writers. More...

Public Member Functions
	__construct (StatsStore $store)
	createRateLimiter ( $conditions, $prefix='WRStats', $options=[])
	Create a rate limiter.
	createReader ( $specs, $prefix='WRStats')
	Create a reader.
	createWriter ( $specs, $prefix='WRStats')
	Create a writer.
	setCurrentTime ( $now)
	Set a current timestamp to be injected into new instances on creation.

Detailed Description

A factory for WRStats readers and writers.

Readers and writers should generally be used for a batch and then discarded. Factory objects can be retained indefinitely.

Since

1.39

Definition at line 13 of file WRStatsFactory.php.

Constructor & Destructor Documentation

__construct()

Wikimedia\WRStats\WRStatsFactory::__construct

(

StatsStore

$store

)

Parameters

StatsStore

$store

Definition at line 23 of file WRStatsFactory.php.

Member Function Documentation

createRateLimiter()

Wikimedia\WRStats\WRStatsFactory::createRateLimiter	(		$conditions,
			$prefix = 'WRStats',
			$options = [] )

Create a rate limiter.

Parameters

LimitCondition[]	$conditions	An array in which the key is the condition name, and the value is a LimitCondition describing the limit.
string | string[]	$prefix	A string or array of strings to prefix before storage keys.
array	$options	An associative array of options: bucketCount: Each window is divided into this many time buckets. Fetching the current count will typically result in a request for this many keys.

Returns

WRStatsRateLimiter

Definition at line 92 of file WRStatsFactory.php.

createReader()

Wikimedia\WRStats\WRStatsFactory::createReader	(		$specs,
			$prefix = 'WRStats' )

Create a reader.

Readers gather a batch of read operations, returning promises. The batch is executed when the first promise is resolved.

See also

createWriter

Parameters

array	$specs
string | string[]	$prefix

Returns

WRStatsReader

Definition at line 71 of file WRStatsFactory.php.

createWriter()

Wikimedia\WRStats\WRStatsFactory::createWriter	(		$specs,
			$prefix = 'WRStats' )

Create a writer.

Writers gather a batch of increment operations and then commit them when flush() is called, or when the writer is destroyed.

Parameters

array	$specs	An array of metric specification arrays, indexed by name, where each element is an associative array with the following keys (all optional): type: (string) Always "counter" resolution: (int|float) The resolution of the counter value. For example, if this is 0.01, counters will be rounded to two decimal places. Necessary because we support backends that only store integers, but we present an interface that allows float values. sequences: (array) An array of sequence specification, each sequence spec being an associative array with the following keys: expiry: (int|float) The expiry time of the counters, in seconds. timeStep: (int|float) The time duration represented by a counter bucket. If this is too small, many buckets will be required, making fetches slower. If this is too large, there will be some jitter in the resulting rates as the current time moves from one bucket to the next.
string | string[]	$prefix	A string or array of strings to prefix before storage keys.

Returns

WRStatsWriter

Definition at line 53 of file WRStatsFactory.php.

setCurrentTime()

Wikimedia\WRStats\WRStatsFactory::setCurrentTime

(

$now

)

Set a current timestamp to be injected into new instances on creation.

Parameters

float | int

$now

Seconds since epoch

Definition at line 108 of file WRStatsFactory.php.

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The documentation for this class was generated from the following file:

• includes/libs/WRStats/WRStatsFactory.php