icingaweb2-module-director/library/Director/PropertyModifier/PropertyModifierJsonDecode.php

57 lines
1.7 KiB
PHP

<?php
namespace Icinga\Module\Director\PropertyModifier;
use Icinga\Exception\InvalidPropertyException;
use Icinga\Module\Director\Hook\PropertyModifierHook;
use Icinga\Module\Director\Web\Form\QuickForm;
class PropertyModifierJsonDecode extends PropertyModifierHook
{
public static function addSettingsFormFields(QuickForm $form)
{
$form->addElement('select', 'on_failure', array(
'label' => 'On failure',
'description' => $form->translate(
'What should we do in case we are unable to decode the given string?'
),
'multiOptions' => $form->optionalEnum(array(
'null' => $form->translate('Set no value (null)'),
'keep' => $form->translate('Keep the JSON string as is'),
'fail' => $form->translate('Let the whole import run fail'),
)),
'required' => true,
));
}
public function getName()
{
return 'Decode a JSON string';
}
public function transform($value)
{
if (null === $value) {
return $value;
}
$decoded = @json_decode($value);
if ($decoded === null && JSON_ERROR_NONE === json_last_error()) {
switch ($this->getSetting('on_failure')) {
case 'null':
return null;
case 'keep':
return $value;
case 'fail':
default:
throw new InvalidPropertyException(
'JSON decoding failed for %s',
$value
);
}
}
return $decoded;
}
}