<?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_Service

 * @subpackage Simpy

 * @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: LinkSet.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * @see Zend_Service_Simpy_Link

 */

require_once 'Zend/Service/Simpy/Link.php';

/**

 * @category   Zend

 * @package    Zend_Service

 * @subpackage Simpy

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

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

 */

class Zend_Service_Simpy_LinkSet implements IteratorAggregate

{

    /**

     * List of links

     *

     * @var array of Zend_Service_Simpy_Link objects

     */

    protected $_links;

    /**

     * Constructor to initialize the object with data

     *

     * @param  DOMDocument $doc Parsed response from a GetLinks operation

     * @return void

     */

    public function __construct(DOMDocument $doc)

    {

        $xpath = new DOMXPath($doc);

        $list = $xpath->query('//links/link');

        $this->_links = array();

        for ($x = 0; $x < $list->length; $x++) {

            $this->_links[$x] = new Zend_Service_Simpy_Link($list->item($x));

        }

    }

    /**

     * Returns an iterator for the link set

     *

     * @return ArrayIterator

     */

    public function getIterator()

    {

        return new ArrayIterator($this->_links);

    }

    /**

     * Returns the number of links in the set

     *

     * @return int

     */

    public function getLength()

    {

        return count($this->_links);

    }

}