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doctrine2/lib/Doctrine/Db/Profiler.php
2006-11-12 12:14:08 +00:00

95 lines
3.5 KiB
PHP

<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
*/
Doctrine::autoload('Doctrine_Overloadable');
/**
* Doctrine_Db_Profiler
*
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @package Doctrine
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
*/
class Doctrine_Db_Profiler implements Doctrine_Overloadable {
/**
* @param array $listeners an array containing all availible listeners
*/
private $listeners = array('query',
'prepare',
'commit',
'rollback',
'begintransaction',
'exec',
'execute',
);
/**
* @param array $events an array containing all listened events
*/
private $events = array();
/**
* method overloader
* this method is used for invoking different listeners, for the full
* list of availible listeners, see Doctrine_Db_EventListener
*
* @param string $m the name of the method
* @param array $a method arguments
* @see Doctrine_Db_EventListener
* @return void
*/
public function __call($m, $a) {
// first argument should be an instance of Doctrine_Db_Event
if( ! ($a[0] instanceof Doctrine_Db_Event))
throw new Doctrine_Db_Profiler_Exception("Couldn't listen event. Event should be an instance of Doctrine_Db_Event.");
// event methods should start with 'on'
if(substr($m, 0, 2) !== 'on')
throw new Doctrine_Db_Profiler_Exception("Couldn't invoke listener $m.");
if(substr($m, 2, 3) === 'Pre' && in_array(strtolower(substr($m, 3)), $this->listeners)) {
// pre-event listener found
$a[0]->start();
} else {
// after-event listener found
$a[0]->end();
}
$this->events[] = $a[0];
}
/**
* Get the Doctrine_Db_Event object for the last query that was run, regardless if it has
* ended or not. If the event has not ended, it's end time will be Null.
*
* @return Doctrine_Db_Event
*/
public function lastEvent() {
if (empty($this->events)) {
return false;
}
end($this->events);
return current($this->events);
}
}