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<?php
namespace Icinga\Module\Director\PropertyModifier;
use Icinga\Data\Filter\FilterExpression;
use Icinga\Exception\ConfigurationError;
use Icinga\Module\Director\Hook\PropertyModifierHook;
use Icinga\Module\Director\Web\Form\QuickForm;
class PropertyModifierRejectOrSelect extends PropertyModifierHook
{
/** @var FilterExpression */
private $filterExpression;
public function getName()
{
return mt('director', 'Reject or keep rows based on property value');
}
/**
* @inheritdoc
* @throws \Zend_Form_Exception
*/
public static function addSettingsFormFields(QuickForm $form)
{
$form->addElement('select', 'filter_method', [
'label' => $form->translate('Filter method'),
'required' => true,
'value' => 'wildcard',
'multiOptions' => $form->optionalEnum([
'wildcard' => $form->translate('Simple match with wildcards (*)'),
'regex' => $form->translate('Regular Expression'),
'is_true' => $form->translate('Match boolean TRUE'),
'is_false' => $form->translate('Match boolean FALSE'),
'is_null' => $form->translate('Match NULL value columns'),
]),
'class' => 'autosubmit',
]);
$method = $form->getSetting('filter_method');
switch ($method) {
case 'wildcard':
$form->addElement('text', 'filter_string', [
'label' => $form->translate('Filter'),
'description' => $form->translate(
'The string/pattern you want to search for, use wildcard'
. ' matches like www.* or *linux*'
),
'required' => true,
]);
break;
case 'regex':
$form->addElement('text', 'filter_string', [
'label' => $form->translate('Filter'),
'description' => $form->translate(
'The string/pattern you want to search for, use regular'
. ' expression like /^www\d+\./'
),
'required' => true,
]);
break;
}
$form->addElement('select', 'policy', [
'label' => $form->translate('Policy'),
'required' => true,
'description' => $form->translate(
'What should happen with the row, when this property matches the given expression?'
),
'value' => 'reject',
'multiOptions' => [
'reject' => $form->translate('Reject the whole row'),
'keep' => $form->translate('Keep only matching rows'),
],
]);
}
public function matchesRegexp($string, $expression)
{
return preg_match($expression, $string);
}
public function isNull($string, $expression)
{
return $string === null;
}
public function isTrue($string, $expression)
{
return $string === true;
}
public function isFalse($string, $expression)
{
return $string === false;
}
public function matchesWildcard($string, $expression)
{
return $this->filterExpression->matches(
(object) ['value' => $string]
);
}
public function transform($value)
{
$method = $this->getSetting('filter_method');
$filter = $this->getSetting('filter_string');
$policy = $this->getSetting('policy');
switch ($method) {
case 'wildcard':
$func = 'matchesWildcard';
$this->filterExpression = new FilterExpression('value', '=', $filter);
break;
case 'regex':
$func = 'matchesRegexp';
break;
case 'is_null':
$func = 'isNull';
break;
case 'is_true':
$func = 'isTrue';
break;
case 'is_false':
$func = 'isFalse';
break;
default:
throw new ConfigurationError(
'%s is not a valid value for an ArrayFilter filter_method',
var_export($method, 1)
);
}
if ($this->$func($value, $filter)) {
if ($policy === 'reject') {
$this->rejectRow();
}
} else {
if ($policy === 'keep') {
$this->rejectRow();
}
}
return $value;
}
}
|
