<?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 Formatter

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Xml.php 20104 2010-01-06 21:26:01Z matthew $

 */

/** Zend_Log_Formatter_Interface */

require_once 'Zend/Log/Formatter/Interface.php';

/**

 * @category   Zend

 * @package    Zend_Log

 * @subpackage Formatter

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: Xml.php 20104 2010-01-06 21:26:01Z matthew $

 */

class Zend_Log_Formatter_Xml implements Zend_Log_Formatter_Interface

{

    /**

     * @var Relates XML elements to log data field keys.

     */

    protected $_rootElement;

    /**

     * @var Relates XML elements to log data field keys.

     */

    protected $_elementMap;

    /**

     * @var string Encoding to use in XML

     */

    protected $_encoding;

    /**

     * Class constructor

     *

     * @param string $rootElement Name of root element

     * @param array $elementMap

     * @param string $encoding Encoding to use (defaults to UTF-8)

     */

    public function __construct($rootElement = 'logEntry', $elementMap = null, $encoding = 'UTF-8')

    {

        $this->_rootElement = $rootElement;

        $this->_elementMap  = $elementMap;

        $this->setEncoding($encoding);

    }

    /**

     * Get encoding

     *

     * @return string

     */

    public function getEncoding()

    {

        return $this->_encoding;

    }

    /**

     * Set encoding

     *

     * @param  string $value

     * @return Zend_Log_Formatter_Xml

     */

    public function setEncoding($value)

    {

        $this->_encoding = (string) $value;

        return $this;

    }

    /**

     * Formats data into a single line to be written by the writer.

     *

     * @param  array    $event    event data

     * @return string             formatted line to write to the log

     */

    public function format($event)

    {

        if ($this->_elementMap === null) {

            $dataToInsert = $event;

        } else {

            $dataToInsert = array();

            foreach ($this->_elementMap as $elementName => $fieldKey) {

                $dataToInsert[$elementName] = $event[$fieldKey];

            }

        }

        $enc = $this->getEncoding();

        $dom = new DOMDocument('1.0', $enc);

        $elt = $dom->appendChild(new DOMElement($this->_rootElement));

        foreach ($dataToInsert as $key => $value) {

            if($key == "message") {

                $value = htmlspecialchars($value, ENT_COMPAT, $enc);

            }

            $elt->appendChild(new DOMElement($key, $value));

        }

        $xml = $dom->saveXML();

        $xml = preg_replace('/<\?xml version="1.0"( encoding="[^\"]*")?\?>\n/u', '', $xml);

        return $xml . PHP_EOL;

    }

}