H:/Workspace/php-axiom/www/php-axiom/libraries/axiom/axFeed.class.php

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<?php
class axFeed extends ArrayIterator {
    
    protected $_meta_inf = array();
    
    protected $_type;
        
    public function setMetaInf (array $meta_inf = array()) {
        $this['meta'] = $meta_inf;
        return $this;
    }
    
    public function __construct ($type, array $items = array(), array $meta_inf = array()) {
        parent::__construct(array(
            'meta'  => $meta_inf,
            'items' => $items,
        ));
        
        $this->_type = $type;
    }
    
    public function __get ($key) {
        if (method_exists($this, $method = "get" . ucfirst($key)))
            return $this->$method();
        else
            throw new InvalidArgumentException("$key does not exist", 4008);
    }
    
    public function __set ($key, $value) {
        if (method_exists($this, $method = "get" . ucfirst($key)))
            return $this->$method($value);
        else
            throw new InvalidArgumentException("$key does not exist", 4008);
    }
    
    public function add (axFeedEntry $entry = null) {
        if (!$entry)
            $entry = new axFeedEntry;
            
        return $this['items'][] = $entry;
    }
    
    public function getEntries () {
        return $this['items'];
    }
    
    public function getId () {
        return $this['meta']['id'];
    }
    
    public function setId ($id) {
        if (!$id = filter_var($id, FILTER_SANITIZE_ENCODED))
            throw new InvalidArgumentException("Invalid ID", 4009);
            
        $this['meta']['id'] = $id;
        return $this;
    }
    
    public function getTitle () {
        return $this['meta']['title'];
    }
    
    public function setTitle ($title) {
        $title = strip_tags($title);
        $this['meta']['title'] = $title;
        return $this;
    }
    
    public function getDate () {
        return $this['meta']['date'];
    }
    
    public function setDate ($date) {
        if ($time = strtotime($date))
            $date = date('r', $time);
        else
            throw new InvalidArgumentException("Invalid date format", 4010);
            
        $this['meta']['date'] = $date;
        return $this;
    }
    
    public function getAuthor () {
        return $this['meta']['author'];
    }
    
    public function setAuthor (array $author) {
        $author = array_intersect_key($author, array_flip(array('mail', 'name', 'uri')));
        
        if (isset($author['mail']) && !axMail::validateEmail($author['mail']))
            throw new InvalidArgumentException("Invalid author email", 4011);
            
        if (isset($author['name']) && !$author['name'] = filter_var($author['name'], FILTER_SANITIZE_ENCODED))
            throw new InvalidArgumentException("Invalid author name", 4012);
            
        if (isset($author['uri']) && !filter_var($author['uri'], FILTER_VALIDATE_URL))
            throw new InvalidArgumentException("Invalid URI for author", 4013);
            
        if (empty($author))
            throw new InvalidArgumentException("Author description must contain at least a name or email or URI", 4014);
            
        $this['meta']['author'] = $author;
        return $this;
    }
    
    public function getLang () {
        return $this['meta']['lang'];
    }
    
    public function setLang ($lang) {
        $this['meta']['lang'] = $lang;
        return $this;
    }
    
    public function getDescription () {
        return $this['meta']['description'];
    }
    
    public function setDescription ($description) {
        $description = strip_tags($description);
        $this['meta']['description'] = $description;
        return $this;
    }
    
    public function getCopyright () {
        return $this['meta']['copyright'];
    }
    
    public function setCopyright ($copyright) {
        $this['meta']['copyright'] = $copyright;
        return $this;
    }
    
    public function getLink () {
        return $this['meta']['link'];
    }
    
    public function setLink ($url) {
        if (!$url = filter_var($url, FILTER_VALIDATE_URL))
            throw new InvalidArgumentException("Invalid URL", 4015);
            
        $this['meta']['link'];
        return $this;
    }
    
    public function build ($type = null) {
        if (!$type)
            $type = ucfirst(strtolower($this->_type));
        
        if (!axAutoloader::load($class = "ax{$type}FeedWriter"))
            throw new RuntimeException("$type feed writer not found", 4016);
            
        $reflection = new ReflectionClass($class);
        if (!$reflection->isInstanciable())
            throw new RuntimeException("$class cannot be instanciated", 4017);
            
        if (!$reflextion->isSubclassOf("axFeedWriter"))
            throw new RuntimeException("$class must extends axFeedWriter", 4018);
        
        return new $class($this);
    }
}