Viewing file:  AbstractOptions.php (4.61 KB) -rwxrwxr-x
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<?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\Stdlib;
use Traversable;
abstract class AbstractOptions implements ParameterObjectInterface
{
/**
* We use the __ prefix to avoid collisions with properties in
* user-implementations.
*
* @var bool
*/
protected $__strictMode__ = true;
/**
* Constructor
*
* @param array|Traversable|null $options
*/
public function __construct($options = null)
{
if (null !== $options) {
$this->setFromArray($options);
}
}
/**
* Set one or more configuration properties
*
* @param array|Traversable|AbstractOptions $options
* @throws Exception\InvalidArgumentException
* @return AbstractOptions Provides fluent interface
*/
public function setFromArray($options)
{
if ($options instanceof self) {
$options = $options->toArray();
}
if (!is_array($options) && !$options instanceof Traversable) {
throw new Exception\InvalidArgumentException(
sprintf(
'Parameter provided to %s must be an %s, %s or %s',
__METHOD__,
'array',
'Traversable',
'Zend\Stdlib\AbstractOptions'
)
);
}
foreach ($options as $key => $value) {
$this->__set($key, $value);
}
return $this;
}
/**
* Cast to array
*
* @return array
*/
public function toArray()
{
$array = array();
$transform = function ($letters) {
$letter = array_shift($letters);
return '_' . strtolower($letter);
};
foreach ($this as $key => $value) {
if ($key === '__strictMode__') {
continue;
}
$normalizedKey = preg_replace_callback('/([A-Z])/', $transform, $key);
$array[$normalizedKey] = $value;
}
return $array;
}
/**
* Set a configuration property
*
* @see ParameterObject::__set()
* @param string $key
* @param mixed $value
* @throws Exception\BadMethodCallException
* @return void
*/
public function __set($key, $value)
{
$setter = 'set' . str_replace('_', '', $key);
if (is_callable(array($this, $setter))) {
$this->{$setter}($value);
return;
}
if ($this->__strictMode__) {
throw new Exception\BadMethodCallException(sprintf(
'The option "%s" does not have a callable "%s" ("%s") setter method which must be defined',
$key,
'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key))),
$setter
));
}
}
/**
* Get a configuration property
*
* @see ParameterObject::__get()
* @param string $key
* @throws Exception\BadMethodCallException
* @return mixed
*/
public function __get($key)
{
$getter = 'get' . str_replace('_', '', $key);
if (is_callable(array($this, $getter))) {
return $this->{$getter}();
}
throw new Exception\BadMethodCallException(sprintf(
'The option "%s" does not have a callable "%s" getter method which must be defined',
$key,
'get' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key)))
));
}
/**
* Test if a configuration property is null
* @see ParameterObject::__isset()
* @param string $key
* @return bool
*/
public function __isset($key)
{
$getter = 'get' . str_replace('_', '', $key);
return method_exists($this, $getter) && null !== $this->__get($key);
}
/**
* Set a configuration property to NULL
*
* @see ParameterObject::__unset()
* @param string $key
* @throws Exception\InvalidArgumentException
* @return void
*/
public function __unset($key)
{
try {
$this->__set($key, null);
} catch (Exception\BadMethodCallException $e) {
throw new Exception\InvalidArgumentException(
'The class property $' . $key . ' cannot be unset as'
. ' NULL is an invalid value for it',
0,
$e
);
}
}
}
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