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<?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
namespace OpenCloud\Compute\Resource;
use OpenCloud\Common\Exceptions;
use OpenCloud\Common\Lang;
use OpenCloud\Common\PersistentObject;
/**
* The VolumeAttachment class represents a volume that is attached to a server.
*/
class VolumeAttachment extends PersistentObject
{
public $id;
public $device;
public $serverId;
public $volumeId;
public static $json_name = 'volumeAttachment';
public static $url_resource = 'os-volume_attachments';
private $createKeys = array('volumeId', 'device');
/**
* updates are not permitted
*
* @throws OpenCloud\UpdateError always
*/
public function update($params = array())
{
throw new Exceptions\UpdateError(Lang::translate('Updates are not permitted'));
}
/**
* returns a readable name for the attachment
*
* Since there is no 'name' attribute, we'll hardcode something
*
* @api
* @return string
*/
public function name()
{
return sprintf('Attachment [%s]', $this->volumeId ? : 'N/A');
}
/**
* returns the JSON object for Create()
*
* @return stdClass
*/
protected function createJson()
{
$object = new \stdClass;
foreach ($this->createKeys as $key) {
if (isset($this->$key)) {
$object->$key = $this->$key;
}
}
return (object) array(
$this->jsonName() => $object
);
}
}