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<?php
namespace Net\Bazzline\Component\Requirement;
use InvalidArgumentException;
use SplObjectStorage;
/**
* Class ConditionAbstract
*
* @package Net\Bazzline\Component\Requirement
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-06-25
*/
abstract class AbstractCondition implements ConditionInterface
{
/**
* @var bool
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
private $isDisabled;
/**
* @var \SplObjectStorage|IsMetInterface[]
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-06-25
*/
protected $items;
/**
* @var array
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-07-20
*/
private $methodNamesPerItem;
/**
* @var bool
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
private $returnValueIfIsDisabled;
/**
* Constructor of the class
*/
public function __construct()
{
$this->isDisabled = false;
$this->items = new SplObjectStorage();
$this->methodNamesPerItem = array();
$this->setReturnValueIfIsDisabledToTrue();
}
/**
* {$inheritdoc}
*/
public function addItem(IsMetInterface $item)
{
$this->items->attach($item);
return $this;
}
/**
* Magic call method to keep this class as generic as possible.
*
* @param string $methodName - name of the method
* @param mixed $arguments - value
* @return $this
* @throws \InvalidArgumentException
* @author sleibelt
* @since 2013-06-25
*/
public function __call($methodName, $arguments)
{
if (count($arguments) != 1) {
throw new InvalidArgumentException(
'Only one argument value should be provided.'
);
}
$value = current($arguments);
foreach ($this->items as $item) {
if ($item instanceof ConditionInterface) {
$item->$methodName($value);
} else {
if ($this->itemSupportsMethodCall($item, $methodName)) {
$item->$methodName($value);
}
}
}
return $this;
}
/**
* {$inheritdoc}
*/
public function getItems()
{
$items = array();
foreach ($this->items as $item) {
$items[] = $item;
}
return $items;
}
/**
* @return $this
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
public function disable()
{
$this->isDisabled = true;
return $this;
}
/**
* @return bool
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
public function isDisabled()
{
return $this->isDisabled;
}
/**
* Checks if item implements method name
*
* @param IsMetInterface $item
* @param string $methodName
* @return bool
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-07-20
*/
protected function itemSupportsMethodCall(IsMetInterface $item, $methodName)
{
$hash = spl_object_hash($item);
if (empty($this->methodNamesPerItem)
|| !isset($this->methodNamesPerItem[$hash])) {
$itemMethods = array_flip(get_class_methods($item));
$this->methodNamesPerItem[$hash] = $itemMethods;
}
return (isset($this->methodNamesPerItem[$hash][$methodName]));
}
/**
* @return bool
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
protected function getReturnValueIfIsDisabled()
{
return $this->isDisabled;
}
/**
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
protected function setReturnValueIfIsDisabledToFalse()
{
$this->returnValueIfIsDisabled = false;
}
/**
* @author stev leibelt <artodeto@bazzline.net>
* @since 2013-09-29
*/
protected function setReturnValueIfIsDisabledToTrue()
{
$this->returnValueIfIsDisabled = true;
}
}