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<?php |
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class Jetpack_Search_Performance_Logger { |
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/** |
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* @var Jetpack_Search_Performance_Logger |
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**/ |
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private static $instance = null; |
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private $current_query = null; |
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private $query_started = null; |
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private $stats = null; |
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static function init() { |
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if ( is_null( self::$instance ) ) { |
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self::$instance = new Jetpack_Search_Performance_Logger; |
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} |
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return self::$instance; |
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} |
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private function __construct() { |
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$this->stats = array(); |
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add_action( 'pre_get_posts', array( $this, 'begin_log_query' ), 10, 1 ); |
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add_action( 'did_jetpack_search_query', array( $this, 'log_jetpack_search_query' ) ); |
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add_filter( 'found_posts', array( $this, 'log_mysql_query' ), 10, 2 ); |
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add_action( 'wp_footer', array( $this, 'print_stats' ) ); |
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} |
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public function begin_log_query( $query ) { |
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if ( $this->should_log_query( $query ) ) { |
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$this->query_started = microtime( true ); |
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$this->current_query = $query; |
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} |
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} |
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public function log_mysql_query( $found_posts, $query ) { |
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if ( $this->current_query === $query ) { |
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$duration = microtime( true ) - $this->query_started; |
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$this->record_query_time( $duration, false ); |
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$this->reset_query_state(); |
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} |
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return $found_posts; |
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} |
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public function log_jetpack_search_query() { |
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$duration = microtime( true ) - $this->query_started; |
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$this->record_query_time( $duration, true ); |
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$this->reset_query_state(); |
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} |
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private function reset_query_state() { |
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$this->query_started = null; |
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$this->current_query = null; |
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} |
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private function should_log_query( $query ) { |
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return $query->is_main_query() && $query->is_search(); |
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} |
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private function record_query_time( $duration, $was_jetpack_search ) { |
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$this->stats[] = array( $was_jetpack_search, intval( $duration * 1000 ) ); |
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} |
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public function print_stats() { |
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$beacons = array(); |
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if ( ! empty( $this->stats ) ) { |
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foreach( $this->stats as $stat ) { |
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$search_type = $stat[0] ? 'es' : 'mysql'; |
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$beacons[] = "%22jetpack.search.{$search_type}.duration:{$stat[1]}|ms%22"; |
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} |
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$encoded_json = '{%22beacons%22:[' . implode(',', $beacons ) . ']}'; |
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$encoded_site_url = urlencode( site_url() ); |
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$url = "https://pixel.wp.com/boom.gif?v=0.9&u={$encoded_site_url}&json={$encoded_json}"; |
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echo '<img src="' . $url . '" width="1" height="1" style="display:none;" />'; |
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} |
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} |
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} |
Automattic /
jetpack
