144 lines
3.7 KiB
PHP
Executable File
144 lines
3.7 KiB
PHP
Executable File
<?php
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// {{{ICINGA_LICENSE_HEADER}}}
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/**
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* Icinga 2 Web - Head for multiple monitoring frontends
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* Copyright (C) 2013 Icinga Development Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* @copyright 2013 Icinga Development Team <info@icinga.org>
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* @author Icinga Development Team <info@icinga.org>
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*/
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// {{{ICINGA_LICENSE_HEADER}}}
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namespace Icinga\Backend;
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use Icinga\Application\Config;
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/**
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* Icinga Backend Abstract
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*
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* @package Icinga\Backend
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*/
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abstract class AbstractBackend
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{
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/**
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* @var \Zend_Config
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*/
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protected $config;
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/**
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* @var array
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*/
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protected $extensions = array();
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/**
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* Backend constructor, should not be overwritten
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*
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* Makes sure that $this->config exists. Config is a Zend_Config
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* object right now, only the main Config is an Icinga one
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*
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* return void
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*/
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final public function __construct(\Zend_Config $config = null)
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{
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if ($config == null) {
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$config = new \Zend_Config(array());
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}
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$this->config = $config;
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$this->init();
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}
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/**
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* Override this function for initialization tasks
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*
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* return void
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*/
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protected function init()
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{
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}
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/**
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* Dummy function for fluent code
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*
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* return \Icinga\Backend\Ido
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*/
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public function select()
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{
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return $this;
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}
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/**
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* Create a Query object instance for given virtual table and desired fields
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*
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* Leave fields empty to get all available properties
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*
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* @param string Virtual table name
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* @param array $fields
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* @throws \Exception
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* @return
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* @internal param \Icinga\Backend\Fields $array return \Icinga\Backend\Ido\Query* return \Icinga\Backend\Ido\Query
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*/
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public function from($virtual_table, $fields = array())
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{
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$classname = $this->tableToClassName($virtual_table);
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if (!class_exists($classname)) {
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throw new \Exception(sprintf('Asking for invalid virtual table %s', $classname));
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}
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$query = new $classname($this, $fields);
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return $query;
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}
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/**
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* @param $virtual_table
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* @return bool
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*/
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public function hasView($virtual_table)
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{
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return class_exists($this->tableToClassName($virtual_table));
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}
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/**
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* @param $virtual_table
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* @return string
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*/
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protected function tableToClassName($virtual_table)
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{
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if (strpos($virtual_table, "/") !== false) {
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list($module, $classname) = explode("/", $virtual_table, 2);
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$class = array_pop(explode("\\", get_class($this)));
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return 'Icinga\\' . ucfirst($module) . '\\Backend\\' . $class . '\\' . ucfirst($classname) . 'Query';
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} else {
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return get_class($this) . '\\' . ucfirst($virtual_table . 'Query');
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}
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}
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/**
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* @return mixed
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*/
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public function getName()
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{
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return preg_replace('~^.+\\\(.+?)$~', '$1', get_class($this));
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}
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/**
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* @return mixed
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*/
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public function __toString()
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{
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return $this->getName();
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}
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}
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