Module.php

<?php
/*
    This file is part of Erebot, a modular IRC bot written in PHP.

    Copyright © 2010 François Poirotte

    Erebot 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 3 of the License, or
    (at your option) any later version.

    Erebot 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 Erebot.  If not, see <http://www.gnu.org/licenses/>.
*/

namespace Erebot\Config;

class Module implements \Erebot\Interfaces\Config\Module
{
    protected $params;

    protected $active;

    protected $name;

    public function __construct(\SimpleXMLElement $xml)
    {
        $this->name     = (string) $xml['name'];
        $this->params   = array();
        $active         = strtolower(
            isset($xml['active']) ?
            (string) $xml['active'] :
            'true'
        );
        $this->active   = in_array($active, array('1', 'true', 'on', 'yes'));

        foreach ($xml->param as $param) {
            $prm    = (string) $param['name'];
            $val    = (string) $param['value'];
            $this->params[$prm] = $val;
        }
    }

    public function __destruct()
    {
    }

    public function isActive($active = null)
    {
        $res = $this->active;
        if ($active !== null) {
            if (!is_bool($active)) {
                throw new \Erebot\InvalidValueException(
                    'Invalid activation value'
                );
            }
            $this->active = $active;
        }
        return $res;
    }

    public function getName()
    {
        return $this->name;
    }

    public function getParam($param)
    {
        if (!is_string($param)) {
            throw new \Erebot\InvalidValueException('Bad parameter name');
        }
        if (!isset($this->params[$param])) {
            throw new \Erebot\NotFoundException('No such parameter');
        }
        return $this->params[$param];
    }

    public function getParamsNames()
    {
        return array_keys($this->params);
    }
}