1: <?php
  2: 
  3: /**
  4:  * This file contains the XML writer class.
  5:  *
  6:  * @package    Core
  7:  * @subpackage XML
  8:  * @author     Dominik Ziegler
  9:  * @copyright  four for business AG <www.4fb.de>
 10:  * @license    http://www.contenido.org/license/LIZENZ.txt
 11:  * @link       http://www.4fb.de
 12:  * @link       http://www.contenido.org
 13:  */
 14: 
 15: defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
 16: 
 17: /**
 18:  * XML writer class
 19:  *
 20:  * @package    Core
 21:  * @subpackage XML
 22:  */
 23: class cXmlWriter extends cXmlBase {
 24: 
 25:     /**
 26:      * Constructor to create an instance of this class.
 27:      *
 28:      * Creates the XML document.
 29:      *
 30:      * @param string $version [optional, default: 1.0]
 31:      *         version of XML document
 32:      * @param string $encoding [optional, default: UTF-8]
 33:      *         encoding of XML document
 34:      */
 35:     public function __construct($version = '', $encoding = '') {
 36:         $this->_createDocument($version, $encoding);
 37:     }
 38: 
 39:     /**
 40:      * Adds a new element to the XML document.
 41:      * If no root element is given the element will be appended to the root
 42:      * node.
 43:      *
 44:      * @param string $name
 45:      *         name of the element
 46:      * @param string $value [optional]
 47:      *         value of the element
 48:      * @param DOMElement $rootElement [optional]
 49:      *         root element
 50:      * @param array $attributes [optional]
 51:      *         array of attributes added to this element
 52:      * @param bool $cdata [optional]
 53:      *         whether the value is surround by CDATA blocks
 54:      * @return DOMElement
 55:      *         created DOM element
 56:      */
 57:     public function addElement($name, $value = '', $rootElement = NULL, $attributes = array(), $cdata = false) {
 58:         if ($value == '' || ($value != '' && $cdata == true)) {
 59:             $element = $this->_dom->createElement($name);
 60:             if ($value != '' && $cdata == true) {
 61:                 $element->appendChild($this->_dom->createCDATASection($value));
 62:             }
 63:         } else {
 64:             $element = $this->_dom->createElement($name, $value);
 65:         }
 66: 
 67:         $element = $this->_addElementAttributes($element, $attributes);
 68: 
 69:         if ($rootElement === NULL) {
 70:             $this->_dom->appendChild($element);
 71:         } else {
 72:             $rootElement->appendChild($element);
 73:         }
 74: 
 75:         return $element;
 76:     }
 77: 
 78:     /**
 79:      * Adds an array of attributes to a specific DOM element.
 80:      *
 81:      * @param DOMElement $element
 82:      *         DOM element to add attributes
 83:      * @param array $attributes [optional]
 84:      *         array of attributes
 85:      * @return DOMElement
 86:      *         DOM element with assigned attributes
 87:      */
 88:     protected function _addElementAttributes(DOMElement $element, array $attributes = array()) {
 89:         if (count($attributes) == 0) {
 90:             return $element;
 91:         }
 92: 
 93:         foreach ($attributes as $attributeName => $attributeValue) {
 94:             $element->setAttribute($attributeName, $attributeValue);
 95:         }
 96: 
 97:         return $element;
 98:     }
 99: 
100:     /**
101:      * Returns the complete XML tree as string.
102:      *
103:      * @return string
104:      *         XML tree
105:      */
106:     public function saveToString() {
107:         return $this->_dom->saveXML();
108:     }
109: 
110:     /**
111:      * Saves the XML tree into a file.
112:      *
113:      * @param string $directory
114:      *         path to destination directory
115:      * @param string $fileName
116:      *         name of the written file
117:      * @throws cException
118:      *         if the directory is not writable
119:      * @return bool
120:      *         state of saving process (true if file was created, false otherwise)
121:      */
122:     public function saveToFile($directory, $fileName) {
123:         if (is_writable($directory) === false) {
124:             throw new cException('Can not write XML file: Directory is not writable.');
125:         }
126: 
127:         if (substr($directory, 0, -1) != '/') {
128:             $directory = $directory . '/';
129:         }
130: 
131:         cFileHandler::write($directory . $fileName, $this->saveToString());
132: 
133:         return cFileHandler::exists($directory . $fileName);
134:     }
135: 
136: }
137: