--- /dev/null
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Feed\Reader;
+
+use DOMDocument;
+use DOMElement;
+use DOMXPath;
+
+abstract class AbstractFeed implements Feed\FeedInterface
+{
+ /**
+ * Parsed feed data
+ *
+ * @var array
+ */
+ protected $data = [];
+
+ /**
+ * Parsed feed data in the shape of a DOMDocument
+ *
+ * @var DOMDocument
+ */
+ protected $domDocument = null;
+
+ /**
+ * An array of parsed feed entries
+ *
+ * @var array
+ */
+ protected $entries = [];
+
+ /**
+ * A pointer for the iterator to keep track of the entries array
+ *
+ * @var int
+ */
+ protected $entriesKey = 0;
+
+ /**
+ * The base XPath query used to retrieve feed data
+ *
+ * @var DOMXPath
+ */
+ protected $xpath = null;
+
+ /**
+ * Array of loaded extensions
+ *
+ * @var array
+ */
+ protected $extensions = [];
+
+ /**
+ * Original Source URI (set if imported from a URI)
+ *
+ * @var string
+ */
+ protected $originalSourceUri = null;
+
+ /**
+ * Constructor
+ *
+ * @param DomDocument $domDocument The DOM object for the feed's XML
+ * @param string $type Feed type
+ */
+ public function __construct(DOMDocument $domDocument, $type = null)
+ {
+ $this->domDocument = $domDocument;
+ $this->xpath = new DOMXPath($this->domDocument);
+
+ if ($type !== null) {
+ $this->data['type'] = $type;
+ } else {
+ $this->data['type'] = Reader::detectType($this->domDocument);
+ }
+ $this->registerNamespaces();
+ $this->indexEntries();
+ $this->loadExtensions();
+ }
+
+ /**
+ * Set an original source URI for the feed being parsed. This value
+ * is returned from getFeedLink() method if the feed does not carry
+ * a self-referencing URI.
+ *
+ * @param string $uri
+ */
+ public function setOriginalSourceUri($uri)
+ {
+ $this->originalSourceUri = $uri;
+ }
+
+ /**
+ * Get an original source URI for the feed being parsed. Returns null if
+ * unset or the feed was not imported from a URI.
+ *
+ * @return string|null
+ */
+ public function getOriginalSourceUri()
+ {
+ return $this->originalSourceUri;
+ }
+
+ /**
+ * Get the number of feed entries.
+ * Required by the Iterator interface.
+ *
+ * @return int
+ */
+ public function count()
+ {
+ return count($this->entries);
+ }
+
+ /**
+ * Return the current entry
+ *
+ * @return \Zend\Feed\Reader\AbstractEntry
+ */
+ public function current()
+ {
+ if (substr($this->getType(), 0, 3) == 'rss') {
+ $reader = new Entry\RSS($this->entries[$this->key()], $this->key(), $this->getType());
+ } else {
+ $reader = new Entry\Atom($this->entries[$this->key()], $this->key(), $this->getType());
+ }
+
+ $reader->setXpath($this->xpath);
+
+ return $reader;
+ }
+
+ /**
+ * Get the DOM
+ *
+ * @return DOMDocument
+ */
+ public function getDomDocument()
+ {
+ return $this->domDocument;
+ }
+
+ /**
+ * Get the Feed's encoding
+ *
+ * @return string
+ */
+ public function getEncoding()
+ {
+ $assumed = $this->getDomDocument()->encoding;
+ if (empty($assumed)) {
+ $assumed = 'UTF-8';
+ }
+ return $assumed;
+ }
+
+ /**
+ * Get feed as xml
+ *
+ * @return string
+ */
+ public function saveXml()
+ {
+ return $this->getDomDocument()->saveXml();
+ }
+
+ /**
+ * Get the DOMElement representing the items/feed element
+ *
+ * @return DOMElement
+ */
+ public function getElement()
+ {
+ return $this->getDomDocument()->documentElement;
+ }
+
+ /**
+ * Get the DOMXPath object for this feed
+ *
+ * @return DOMXPath
+ */
+ public function getXpath()
+ {
+ return $this->xpath;
+ }
+
+ /**
+ * Get the feed type
+ *
+ * @return string
+ */
+ public function getType()
+ {
+ return $this->data['type'];
+ }
+
+ /**
+ * Return the current feed key
+ *
+ * @return int
+ */
+ public function key()
+ {
+ return $this->entriesKey;
+ }
+
+ /**
+ * Move the feed pointer forward
+ *
+ */
+ public function next()
+ {
+ ++$this->entriesKey;
+ }
+
+ /**
+ * Reset the pointer in the feed object
+ *
+ */
+ public function rewind()
+ {
+ $this->entriesKey = 0;
+ }
+
+ /**
+ * Check to see if the iterator is still valid
+ *
+ * @return bool
+ */
+ public function valid()
+ {
+ return 0 <= $this->entriesKey && $this->entriesKey < $this->count();
+ }
+
+ public function getExtensions()
+ {
+ return $this->extensions;
+ }
+
+ public function __call($method, $args)
+ {
+ foreach ($this->extensions as $extension) {
+ if (method_exists($extension, $method)) {
+ return call_user_func_array([$extension, $method], $args);
+ }
+ }
+ throw new Exception\BadMethodCallException('Method: ' . $method
+ . 'does not exist and could not be located on a registered Extension');
+ }
+
+ /**
+ * Return an Extension object with the matching name (postfixed with _Feed)
+ *
+ * @param string $name
+ * @return \Zend\Feed\Reader\Extension\AbstractFeed
+ */
+ public function getExtension($name)
+ {
+ if (array_key_exists($name . '\Feed', $this->extensions)) {
+ return $this->extensions[$name . '\Feed'];
+ }
+ return;
+ }
+
+ protected function loadExtensions()
+ {
+ $all = Reader::getExtensions();
+ $manager = Reader::getExtensionManager();
+ $feed = $all['feed'];
+ foreach ($feed as $extension) {
+ if (in_array($extension, $all['core'])) {
+ continue;
+ }
+ $plugin = $manager->get($extension);
+ $plugin->setDomDocument($this->getDomDocument());
+ $plugin->setType($this->data['type']);
+ $plugin->setXpath($this->xpath);
+ $this->extensions[$extension] = $plugin;
+ }
+ }
+
+ /**
+ * Read all entries to the internal entries array
+ *
+ */
+ abstract protected function indexEntries();
+
+ /**
+ * Register the default namespaces for the current feed format
+ *
+ */
+ abstract protected function registerNamespaces();
+}
projects / yaffs-website / blobdiff