Файл: symfony-2.7/src/Symfony/Component/Stopwatch/Section.php
Строк: 245
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SymfonyComponentStopwatch;
/**
* Stopwatch section.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Section
{
/**
* @var StopwatchEvent[]
*/
private $events = array();
/**
* @var null|float
*/
private $origin;
/**
* @var string
*/
private $id;
/**
* @var Section[]
*/
private $children = array();
/**
* Constructor.
*
* @param float|null $origin Set the origin of the events in this section, use null to set their origin to their start time
*/
public function __construct($origin = null)
{
$this->origin = is_numeric($origin) ? $origin : null;
}
/**
* Returns the child section.
*
* @param string $id The child section identifier
*
* @return Section|null The child section or null when none found
*/
public function get($id)
{
foreach ($this->children as $child) {
if ($id === $child->getId()) {
return $child;
}
}
}
/**
* Creates or re-opens a child section.
*
* @param string|null $id null to create a new section, the identifier to re-open an existing one.
*
* @return Section A child section
*/
public function open($id)
{
if (null === $session = $this->get($id)) {
$session = $this->children[] = new self(microtime(true) * 1000);
}
return $session;
}
/**
* @return string The identifier of the section
*/
public function getId()
{
return $this->id;
}
/**
* Sets the session identifier.
*
* @param string $id The session identifier
*
* @return Section The current section
*/
public function setId($id)
{
$this->id = $id;
return $this;
}
/**
* Starts an event.
*
* @param string $name The event name
* @param string $category The event category
*
* @return StopwatchEvent The event
*/
public function startEvent($name, $category)
{
if (!isset($this->events[$name])) {
$this->events[$name] = new StopwatchEvent($this->origin ?: microtime(true) * 1000, $category);
}
return $this->events[$name]->start();
}
/**
* Checks if the event was started
*
* @param string $name The event name
*
* @return bool
*/
public function isEventStarted($name)
{
return isset($this->events[$name]) && $this->events[$name]->isStarted();
}
/**
* Stops an event.
*
* @param string $name The event name
*
* @return StopwatchEvent The event
*
* @throws LogicException When the event has not been started
*/
public function stopEvent($name)
{
if (!isset($this->events[$name])) {
throw new LogicException(sprintf('Event "%s" is not started.', $name));
}
return $this->events[$name]->stop();
}
/**
* Stops then restarts an event.
*
* @param string $name The event name
*
* @return StopwatchEvent The event
*
* @throws LogicException When the event has not been started
*/
public function lap($name)
{
return $this->stopEvent($name)->start();
}
/**
* Returns a specific event by name
*
* @param string $name The event name
*
* @return StopwatchEvent The event
*
* @throws LogicException When the event is not known
*/
public function getEvent($name)
{
if (!isset($this->events[$name])) {
throw new LogicException(sprintf('Event "%s" is not known.', $name));
}
return $this->events[$name];
}
/**
* Returns the events from this section.
*
* @return StopwatchEvent[] An array of StopwatchEvent instances
*/
public function getEvents()
{
return $this->events;
}
}