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<?php
/**
* Abstract class that represents profiler standard driver output
*
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Profiler\Driver\Standard;
abstract class AbstractOutput implements OutputInterface
{
/**
* PCRE Regular Expression for filter timer by id
*
* @var null|string
*/
protected $_filterPattern;
/**
* List of threshold (minimal allowed) values for profiler data
*
* @var array
*/
protected $_thresholds = [Stat::TIME => 0.001, Stat::COUNT => 10, Stat::EMALLOC => 10000];
/**
* List of columns to output
*
* @var array
*/
protected $_columns = [
'Timer Id' => Stat::ID,
'Time' => Stat::TIME,
'Avg' => Stat::AVG,
'Cnt' => Stat::COUNT,
'Emalloc' => Stat::EMALLOC,
'RealMem' => Stat::REALMEM,
];
/**
* Constructor
*
* @param array|null $config
*/
public function __construct(array $config = null)
{
if (!empty($config['filterPattern'])) {
$this->setFilterPattern($config['filterPattern']);
}
if (!empty($config['thresholds']) && is_array($config['thresholds'])) {
foreach ($config['thresholds'] as $fetchKey => $minAllowedValue) {
$this->setThreshold($fetchKey, (int)$minAllowedValue);
}
}
}
/**
* Set profiler output with timer identifiers filter.
*
* @param string $filterPattern PCRE pattern to filter timers by their identifiers
* @return void
*/
public function setFilterPattern($filterPattern)
{
$this->_filterPattern = $filterPattern;
}
/**
* Get profiler output timer identifiers filter.
*
* @return string|null
*/
public function getFilterPattern()
{
return $this->_filterPattern;
}
/**
* Set threshold (minimal allowed) value for timer column.
*
* Timer is being rendered if at least one of its columns is not less than the minimal allowed value.
*
* @param string $fetchKey
* @param int|float|null $minAllowedValue
* @return void
*/
public function setThreshold($fetchKey, $minAllowedValue)
{
if ($minAllowedValue === null) {
unset($this->_thresholds[$fetchKey]);
} else {
$this->_thresholds[$fetchKey] = $minAllowedValue;
}
}
/**
* Get list of thresholds.
*
* @return array
*/
public function getThresholds()
{
return $this->_thresholds;
}
/**
* Render statistics column value for specified timer
*
* @param string|float $value
* @param string $columnKey
* @return string
*/
protected function _renderColumnValue($value, $columnKey)
{
switch ($columnKey) {
case Stat::ID:
$result = $this->_renderTimerId($value);
break;
case Stat::TIME:
case Stat::AVG:
$result = number_format($value, 6);
break;
default:
$result = number_format((string)$value);
}
return $result;
}
/**
* Render timer id
*
* @param string $timerId
* @return string
*/
protected function _renderTimerId($timerId)
{
return $timerId;
}
/**
* Render a caption for the profiling results
*
* @return string
*/
protected function _renderCaption()
{
return sprintf(
'Code Profiler (Memory usage: real - %s, emalloc - %s)',
memory_get_usage(true),
memory_get_usage()
);
}
/**
* Retrieve the list of timer ids from timer statistics object.
*
* Timer ids will be ordered and filtered by thresholds and filter pattern.
*
* @param Stat $stat
* @return string[]
*/
protected function _getTimerIds(Stat $stat)
{
return $stat->getFilteredTimerIds($this->_thresholds, $this->_filterPattern);
}
}