Log.php

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<?php

class Robo47_Log extends Zend_Log
{

    protected $_defaultCategory = null;

    static public function factory($config = array())
    {
        if ($config instanceof Zend_Config) {
            $config = $config->toArray();
        }

        if (!is_array($config) || empty($config)) {
            $message = 'Configuration must be an array or ' .
                'instance of Zend_Config';
            throw new Robo47_Log_Exception($message);
        }

        $log = new Robo47_Log();

        if (!is_array(current($config))) {
            $log->addWriter(current($config));
        } else {
            foreach ($config as $writer) {
                $log->addWriter($writer);
            }
        }

        return $log;
    }

    public function getWriters()
    {
        return $this->_writers;
    }

    public function removeWriter($class)
    {
        foreach ($this->_writers as $key => $writer) {
            if (is_string($class)) {
                if ($writer instanceof $class) {
                    unset($this->_writers[$key]);
                }
            } elseif (is_object($class)) {
                if ($writer === $class) {
                    unset($this->_writers[$key]);
                }
            }
        }
        return $this;
    }

    public function removeFilter($class)
    {
        foreach ($this->_filters as $key => $filter) {
            if (is_string($class)) {
                if ($filter instanceof $class) {
                    unset($this->_filters[$key]);
                }
            } elseif (is_object($class)) {
                if ($filter === $class) {
                    unset($this->_filters[$key]);
                }
            }
        }
        return $this;
    }

    public function getFilters()
    {
        return $this->_filters;
    }

    public function log($message, $priority, $extras = null)
    {
        if (!isset($extras['category']) && $this->_defaultCategory !== null) {
            $extras['category'] = $this->getDefaultCategory();
        }
        parent::log($message, $priority, $extras);
    }

    public function getPriorities()
    {
        return $this->_priorities;
    }

    public function setDefaultCategory($category = null)
    {
        $this->_defaultCategory = $category;
        return $this;
    }

    public function getDefaultCategory()
    {
        return $this->_defaultCategory;
    }
}