127 lines
4.0 KiB
PHP
127 lines
4.0 KiB
PHP
<?php
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/**
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* An interface for oEmbed consumption
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*
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* PHP version 5.1.0+
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*
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* Copyright (c) 2008, Digg.com, Inc.
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Digg.com, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @category Services
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* @package Services_oEmbed
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* @author Joe Stump <joe@joestump.net>
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* @copyright 2008 Digg.com, Inc.
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* @license http://tinyurl.com/42zef New BSD License
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* @version SVN: @version@
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* @link http://code.google.com/p/digg
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* @link http://oembed.com
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*/
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require_once 'Services/oEmbed/Object/Exception.php';
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/**
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* Base class for consuming oEmbed objects
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*
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* @category Services
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* @package Services_oEmbed
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* @author Joe Stump <joe@joestump.net>
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* @copyright 2008 Digg.com, Inc.
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* @license http://tinyurl.com/42zef New BSD License
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* @version Release: @version@
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* @link http://code.google.com/p/digg
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* @link http://oembed.com
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*/
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abstract class Services_oEmbed_Object
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{
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/**
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* Valid oEmbed object types
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*
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* @var array $types Array of valid object types
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* @see Services_oEmbed_Object::factory()
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*/
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static protected $types = array(
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'photo' => 'Photo',
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'video' => 'Video',
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'link' => 'Link',
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'rich' => 'Rich'
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);
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/**
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* Create an oEmbed object from result
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*
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* @param object $object Raw object returned from API
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*
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* @throws {@link Services_oEmbed_Object_Exception} on object error
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* @return object Instance of object driver
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* @see Services_oEmbed_Object_Link, Services_oEmbed_Object_Photo
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* @see Services_oEmbed_Object_Rich, Services_oEmbed_Object_Video
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*/
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static public function factory($object)
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{
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if (!isset($object->type)) {
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throw new Services_oEmbed_Object_Exception(
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'Object has no type'
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);
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}
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$type = (string)$object->type;
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if (!isset(self::$types[$type])) {
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throw new Services_oEmbed_Object_Exception(
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'Object type is unknown or invalid: ' . $type
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);
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}
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$file = 'Services/oEmbed/Object/' . self::$types[$type] . '.php';
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include_once $file;
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$class = 'Services_oEmbed_Object_' . self::$types[$type];
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if (!class_exists($class)) {
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throw new Services_oEmbed_Object_Exception(
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'Object class is invalid or not present'
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);
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}
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$instance = new $class($object);
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return $instance;
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}
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/**
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* Instantiation is not allowed
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*
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* @return void
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*/
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private function __construct()
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{
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}
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}
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?>
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