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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Log
* @subpackage Writer
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
/** Zend_Log_Filter_Priority */
/**
* @category Zend
* @package Zend_Log
* @subpackage Writer
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id$
*/
abstract class Zend_Log_Writer_Abstract implements Zend_Log_FactoryInterface
{
/**
* @var array of Zend_Log_Filter_Interface
*/
protected $_filters = array();
/**
* Formats the log message before writing.
*
* @var Zend_Log_Formatter_Interface
*/
protected $_formatter;
/**
* Add a filter specific to this writer.
*
* @param Zend_Log_Filter_Interface|int $filter Filter class or filter
* priority
* @return Zend_Log_Writer_Abstract
* @throws Zend_Log_Exception
*/
public function addFilter($filter)
{
if (is_int($filter)) {
$filter = new Zend_Log_Filter_Priority($filter);
}
if (!$filter instanceof Zend_Log_Filter_Interface) {
/** @see Zend_Log_Exception */
throw new Zend_Log_Exception('Invalid filter provided');
}
$this->_filters[] = $filter;
return $this;
}
/**
* Log a message to this writer.
*
* @param array $event log data event
* @return void
*/
public function write($event)
{
/** @var Zend_Log_Filter_Interface $filter */
foreach ($this->_filters as $filter) {
if (!$filter->accept($event)) {
return;
}
}
// exception occurs on error
$this->_write($event);
}
/**
* Set a new formatter for this writer
*
* @param Zend_Log_Formatter_Interface $formatter
* @return Zend_Log_Writer_Abstract
*/
public function setFormatter(Zend_Log_Formatter_Interface $formatter)
{
$this->_formatter = $formatter;
return $this;
}
/**
* Perform shutdown activites such as closing open resources
*
* @return void
*/
public function shutdown()
{}
/**
* Write a message to the log.
*
* @param array $event log data event
* @return void
*/
abstract protected function _write($event);
/**
* Validate and optionally convert the config to array
*
* @param array|Zend_Config $config Zend_Config or Array
* @return array
* @throws Zend_Log_Exception
*/
static protected function _parseConfig($config)
{
if ($config instanceof Zend_Config) {
$config = $config->toArray();
}
if (!is_array($config)) {
throw new Zend_Log_Exception(
'Configuration must be an array or instance of Zend_Config'
);
}
return $config;
}
}
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