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<?php
/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* An object that can perform a sequential conversion using an array of conversions.
*/
class CConverterChain {
/**
* Converters to use.
*
* @var CConverter[]
*/
protected $converters = [];
/**
* Convert the data starting from the converter given in $startFrom.
*
* @param mixed $data
* @param string $startFrom
*
* @return mixed
*/
public function convert($data, $startFrom) {
$convert = false;
foreach ($this->converters as $key => $converter) {
if ($key === $startFrom) {
$convert = true;
}
if ($convert) {
$data = $converter->convert($data);
}
}
return $data;
}
/**
* Add a new converter to the chain.
*
* @param string $name
* @param CConverter $converter
*/
public function addConverter($name, CConverter $converter) {
$this->converters[$name] = $converter;
}
}
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