Metadata.php
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<?php
/**
* PHP OpenCloud library.
*
* @copyright 2014 Rackspace Hosting, Inc. See LICENSE for information.
* @license https://www.apache.org/licenses/LICENSE-2.0
* @author Glen Campbell <glen.campbell@rackspace.com>
* @author Jamie Hannaford <jamie.hannaford@rackspace.com>
*/
namespace OpenCloud\Common;
/**
* The Metadata class represents either Server or Image metadata
*/
class Metadata extends Base implements \Countable
{
/**
* @var array Internal data store.
*/
protected $metadata = array();
/**
* This setter overrides the base one, since the metadata key can be
* anything
*
* @param string $property
* @param string $value
* @return void
*/
public function __set($property, $value)
{
return $this->setProperty($property, $value);
}
public function __get($key)
{
return $this->getProperty($key);
}
public function propertyExists($property, $allowRetry = true)
{
return isset($this->metadata[strtolower($property)])
|| parent::propertyExists($property, $allowRetry);
}
public function getProperty($property)
{
return $this->propertyExists($property) ? $this->metadata[strtolower($property)] : null;
}
public function setProperty($property, $value)
{
$this->metadata[strtolower($property)] = $value;
}
public function __isset($property)
{
return $this->propertyExists($property);
}
/**
* Returns the list of keys defined
*
* @return array
*/
public function keylist()
{
return $this->metadata;
}
/**
* Sets metadata values from an array, with optional prefix
*
* If $prefix is provided, then only array keys that match the prefix
* are set as metadata values, and $prefix is stripped from the key name.
*
* @param array $values an array of key/value pairs to set
* @param string $prefix if provided, a prefix that is used to identify
* metadata values. For example, you can set values from headers
* for a Container by using $prefix='X-Container-Meta-'.
* @return void
*/
public function setArray($values, $prefix = null)
{
if (empty($values)) {
return false;
}
foreach ($values as $key => $value) {
if ($prefix && strpos($key, $prefix) === 0) {
$key = substr($key, strlen($prefix));
}
$this->setProperty($key, $value);
}
}
public function toArray()
{
return $this->metadata;
}
public function count()
{
return count($this->metadata);
}
}