101 lines
3.4 KiB
PHP
101 lines
3.4 KiB
PHP
<?php
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// {{{ICINGA_LICENSE_HEADER}}}
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/**
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* This file is part of Icinga Web 2.
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*
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* Icinga Web 2 - Head for multiple monitoring backends.
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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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* @license http://www.gnu.org/licenses/gpl-2.0.txt GPL, version 2
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* @author Icinga Development Team <info@icinga.org>
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*
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*/
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// {{{ICINGA_LICENSE_HEADER}}}
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namespace Icinga\Protocol\Statusdat;
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use Icinga\Filter\Filterable;
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use Icinga\Filter\Query\Node;
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use Icinga\Filter\Query\Tree;
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use Icinga\Protocol\Statusdat\Query\Expression;
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use Icinga\Protocol\Statusdat\Query\Group;
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use Icinga\Protocol\Statusdat\Query\IQueryPart;
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/**
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* Parser to create statusdat filter expressions from query trees
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*
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*/
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class TreeToStatusdatQueryParser
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{
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/**
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* Create a Statusdat expression from a Tree node
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*
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* @param Node $node The node to convert to an expression
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* @param Filterable $source The filterable to use for field mapping
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*
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* @return IQueryPart Either a statusdat expression or an expression group
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*/
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private function nodeToQuery(Node $node, Filterable $source)
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{
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if ($node->type === Node::TYPE_OPERATOR) {
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$op = $node->operator;
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$node->left = $source->getMappedField($node->left);
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$op = 'IN';
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$values = $node->right;
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if ($node->operator === NODE::OPERATOR_EQUALS_NOT) {
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$op = 'NOT_' . $op;
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}
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foreach ($values as &$value) {
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$value = str_replace('*', '%', $value);
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}
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$values = array($values);
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return new Expression($node->left . ' ' . $op . ' ? ', $values);
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} else {
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$group = new Group();
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$group->setType(($node->type === Node::TYPE_OR) ? Group::TYPE_OR : Group::TYPE_AND);
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$group->addItem($this->nodeToQuery($node->left, $source));
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$group->addItem($this->nodeToQuery($node->right, $source));
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return $group;
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}
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}
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/**
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* Create a statusdat specific filter expression for the given query tree and filterable
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*
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* @param Tree $tree The tree to convert to a query
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* @param Filterable $source The filterable to use for tree conversion
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*
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* @return IQueryPart A statusdat query object
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*/
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public function treeToQuery(Tree $tree, Filterable $source)
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{
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$tree = $tree->getCopyForFilterable($source);
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if ($tree->root !== null) {
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$tree->root = $tree->normalizeTree($tree->root);
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return $this->nodeToQuery($tree->root, $source);
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}
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return null;
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}
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}
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