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