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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.
**/
/**
* A converted for converting 1.8 trigger expressions.
*/
class C10TriggerConverter extends CConverter {
/**
* A parser for function macros.
*
* @var CFunctionMacroParser
*/
protected $function_macro_parser;
/**
* Converted used to convert simple check item keys.
*
* @var CConverter
*/
protected $itemKeyConverter;
public function __construct() {
$this->function_macro_parser = new CFunctionMacroParser(['18_simple_checks' => true]);
$this->itemKeyConverter = new C10ItemKeyConverter();
}
/**
* Converts simple check item keys used in trigger expressions.
*
* @param string $expression
*
* @return string
*/
public function convert($expression) {
$new_expression = '';
for ($pos = 0; isset($expression[$pos]); $pos++) {
if ($this->function_macro_parser->parse($expression, $pos) != CParser::PARSE_FAIL) {
$new_expression .= '{'.
$this->function_macro_parser->getHost().':'.
$this->itemKeyConverter->convert($this->function_macro_parser->getItem()).'.'.
$this->function_macro_parser->getFunction().
'}';
$pos += $this->function_macro_parser->getLength() - 1;
}
else {
$new_expression .= $expression[$pos];
}
}
return $new_expression;
}
}
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