113 lines
1.9 KiB
PHP
113 lines
1.9 KiB
PHP
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<?php declare(strict_types = 1);
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/**
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* Container for data collectors.
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*
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* @package query-monitor
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*/
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if ( ! class_exists( 'QM_Collectors' ) ) {
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/**
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* @implements \IteratorAggregate<string, QM_Collector>
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*/
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class QM_Collectors implements IteratorAggregate {
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/**
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* @var array<string, QM_Collector>
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*/
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private $items = array();
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/**
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* @var boolean
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*/
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private $processed = false;
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/**
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* @return ArrayIterator<string, QM_Collector>
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*/
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#[\ReturnTypeWillChange]
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public function getIterator() {
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return new ArrayIterator( $this->items );
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}
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/**
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* @param QM_Collector $collector
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* @return void
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*/
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public static function add( QM_Collector $collector ) {
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$collectors = self::init();
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$collector->set_up();
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$collectors->items[ $collector->id ] = $collector;
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}
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/**
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* Fetches a collector instance.
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*
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* @param string $id The collector ID.
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* @return QM_Collector|null The collector object.
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*/
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public static function get( $id ) {
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$collectors = self::init();
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return $collectors->items[ $id ] ?? null;
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}
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/**
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* @return self
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*/
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public static function init() {
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static $instance;
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if ( ! $instance ) {
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$instance = new QM_Collectors();
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}
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return $instance;
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}
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/**
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* @return void
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*/
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public function process() {
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if ( $this->processed ) {
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return;
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}
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foreach ( $this as $collector ) {
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$collector->tear_down();
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$timer = new QM_Timer();
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$timer->start();
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$collector->process();
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$collector->process_concerns();
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$collector->set_timer( $timer->stop() );
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}
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foreach ( $this as $collector ) {
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$collector->post_process();
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}
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$this->processed = true;
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}
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/**
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* @return void
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*/
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public static function cease() {
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$collectors = self::init();
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$collectors->processed = true;
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/** @var QM_Collector $collector */
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foreach ( $collectors as $collector ) {
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$collector->tear_down();
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$collector->discard_data();
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}
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}
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}
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}
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