bcbfc9ccfc
A library for storage of counter value time series statistics, based around the observation that memcached getMulti() is apparently fast enough to do this in a simple manner, with incremented values stored in time window buckets. Bug: T310662 Change-Id: I26b1cdba0a06ad16ad8bb71b455e1b6180924d17
53 lines
1.1 KiB
PHP
53 lines
1.1 KiB
PHP
<?php
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namespace Wikimedia\WRStats;
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/**
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* In memory stats store.
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*/
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class ArrayStatsStore implements StatsStore {
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/**
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* @var array[] Associative array mapping data keys to arrays where the
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* first entry is the value and the second is the TTL.
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*/
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private $data = [];
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public function makeKey( $prefix, $internals, $entity ) {
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$globality = $entity->isGlobal() ? 'global' : 'local';
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return implode( ':',
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array_merge( [ $globality ], $prefix, $internals, $entity->getComponents() )
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);
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}
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public function incr( array $values, $ttl ) {
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foreach ( $values as $key => $value ) {
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if ( !isset( $this->data[$key] ) ) {
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$this->data[$key] = [ 0, $ttl ];
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}
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$this->data[$key][0] += $value;
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}
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}
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public function delete( array $keys ) {
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foreach ( $keys as $key ) {
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unset( $this->data[$key] );
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}
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}
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public function query( array $keys ) {
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$values = [];
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foreach ( $keys as $key ) {
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if ( isset( $this->data[$key] ) ) {
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$values[$key] = $this->data[$key][0];
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}
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}
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return $values;
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}
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/**
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* @return array
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*/
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public function getData() {
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return $this->data;
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}
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}
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