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<?php
/**
* $Id$
*
* Author: David Danier, david.danier@team23.de
* Project: Serverstats, http://serverstats.berlios.de/
* License: GPL v2 or later (http://www.gnu.org/licenses/gpl.html)
*
* Copyright (C) 2005 David Danier
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class snmp extends source implements source_rrd
{
private $host;
private $objects = array();
private $community;
private $data = array();
private $dsdef = array();
public function __construct($host, $objects, $community = 'public')
{
$this->host = $host;
if (!is_array($objects))
{
$objects = array($objects);
}
$this->objects = $objects;
$this->community = $community;
}
public function addDatasourceDefinition($object, $type = 'GAUGE', $heartbeat = null, $min = 'U', $max = 'U')
{
$this->dsdef[$object] = array(
'type' => $type,
'heartbeat' => $heartbeat,
'min' => $min,
'max' => $max
);
}
public function refreshData()
{
snmp_set_valueretrieval(SNMP_VALUE_OBJECT);
foreach ($this->objects as $objectName => $objectId)
{
$object = snmpget($this->host, $this->community, $objectId);
if ($object !== false)
{
$this->data[$objectName] = $object->value;
}
}
}
public function initRRD(rrd $rrd)
{
foreach ($this->objects as $objectName => $objectId)
{
if (isset($this->dsdef[$objectName]))
{
$opt = $this->dsdef[$objectName];
$rrd->addDatasource(
rrd::escapeDsName($objectName),
$opt['type'],
$opt['heartbeat'],
$opt['min'],
$opt['max']
);
}
else
{
$rrd->addDatasource(rrd::escapeDsName($objectName), 'GAUGE');
}
}
}
public function fetchValues()
{
$values = array();
foreach ($this->data as $key => $value)
{
$values[rrd::escapeDsName($key)] = $value;
}
return $values;
}
}
?>
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